United States Patent [19]
`Nakanishi
`
`[11] Patent Number:
`[45] Date of Patent:
`
`4,950,148
`Aug. 21, 1990
`
`[54] APPARATUS FOR MANUFACTURING
`SILICONE GEL SHEET
`Motoyasu Nakanishi, Fujishi, Japan
`[75] Inventor:
`[73] Assignee:
`Kabushiki Kaisha Cubic Engineering,
`Shizuokaken, Japan
`[21] Appl. No.: 73,067
`[22] Filed:
`Jul. 13, 1987
`[30]
`Foreign Application Priority Data
`Jan. 31, 1987 [JP]
`Japan .................................. 62-21254
`[51] Int. Cl.’......................... B29G 3/02; A01.J 21/00;
`B29B 7/00
`[52] U.S. Cl. .................................... 425/224; 425/101;
`425/373; 264/240; 264/349
`[58] Field of Search ..................... 425/4 C, 91, 92, 96,
`425/99, 101, 113, 114, 117, 122, 200, 197, 209,
`817 C, 127, 371, 394, 406, 407, 378 R, 377, 373,
`89, 116, 115, 220, 223, 224, 325, 354, 366, 270,
`281, 283; 156/246, 249, 539, 242, 501, 540, 247,
`231, 324; 264/510, 241, 267, 101, 102, 213, 216,
`217, 352, 331.12, 240, 349, DIG. 6
`References Cited
`U.S. PATENT DOCUMENTS
`2,698,271 12/1954 Clark ................................... 425/197
`3,137,743 6/1964 Pelley ............
`... 425/817 C
`3,154,618 10/1964 Baer et al. ........................... 264/349
`3,764,247 10/1973 Garrett ......................... 264/DIG. 6
`
`[56]
`
`3,900,543 8/1975 Davis ............................ 264/DIG. 6
`3,933,548 1/1976 Anderson, Jr.; et al. ........... 156/246
`4,003,777 1/1977 Eddy ............................
`... 156/246
`4,128,369 12/1978 Kemerer et al
`º 425/394
`4,191,805 3/1980 Nolte .............
`... 156/246
`4,393,113 7/1983 Sugie et al. ......................... 156/246
`4,572,865 2/1986 Gluck et al. ..
`... 425/817 C
`4,590,030 5/1986 Gillner et al. ....................... 425/205
`4,595,440 6/1986 Lynch ...........
`... 156/246
`4,693,858 9/1987 Volke ........
`... 264/10,
`4,698,110 10/1987 Vassiliou ............................. 156/246
`Primary Examiner—David Simmons
`Assistant Examiner—Louis Falasco
`Attorney, Agent, or Firm—Wenderoth, Lind & Ponack
`[57]
`ABSTRACT
`An apparatus for manufacturing silicone gel sheet com
`prising a material supplying means which supplies
`kneaded silicone gel material to a nozzle, a nozzle
`which admits to flow silicone gel material supplied from
`said material supplying means and is provided with a
`discharging port which is open to be narrow and long,
`at least one movable receiving means which receives a
`sheet-formed strip made of silicone gel material dis
`charged from said nozzle and moves in accordance with
`the discharging speed of the sheet-formed strip, and a
`heating section for heating and gelling the sheet-formed
`strip made of silicone gel material on said movable
`receiving means.
`
`2 Claims, 3 Drawing Sheets
`
`
`
`ALISON – Ex. 1005
`Alison v. Aspen
`IPR2017-00152
`
`

`
`US. Patent
`U.S. Patent
`
`Aug. 21, 1990
`Aug. 21, 1990
`
`‘Sheet 1 of3
`Sheet 1 of 3
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`4,950,148 L
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`U.S. Patent Aug. 21, 1990
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`Sheet 2 of 3
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`4,950,148
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`U.S. Patent
`U.S. Patent
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`Aug. 21, 1990
`Aug. 21, 1990
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`Sheet 3 of3
`Sheet 3 of 3
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`4,950,148
`4,950,148
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`1
`
`APPARATUS FOR MANUFACTURING SILICONE
`GEL SHEET
`
`5
`
`BACKGROUND OF THE INVENTION
`The present invention relates to an apparatus to be
`used to manufacture gelled thin sheet made of silicone
`as material.
`Silicone gel is an extremely useful material as a buffer
`10
`material or a shock absorbing material. Silicone gel to
`be used for such application has, in most cases, a pene
`tration value of approximately 50 to 200 measured ac
`cording to JIS (Japanese Industrial Standard) K
`2530-1976-(50 g load) and a small thickness.
`15
`In the conventional method for manufacturing a thin
`silicone gel sheet material as described above, silicone
`material such as, for example, Toray Silicone CY52
`(trademark) (manufactured by Toray Silicone Kabu
`shiki Kaisha) has been kneaded, transferred into a tray
`20
`type container, uniformly leveled with a spatula type
`plate used by hand, and heated with a flat holding plate
`made of metal or glass placed on the silicone material
`extended in the tray type container.
`However, said kneaded silicone gel material provides
`25
`the property that it has the viscosity of 1000 to 1200CP
`when it does not contain other substances and that of
`5000 to 10,000CP when it is kneaded with fine hollow
`particles and the pot life at a normal temperature is
`short and therefore there has been a problem that the
`30
`work of filling the tray type container with this silicone
`material and leveling it in the container has been ex
`tremely troublesome and unsuitable for volume produc
`tion.
`
`4,950,148
`2
`Another object of the present invention is to provide
`an apparatus which is adapted so that the thin sheet
`formed strip supplied to the movable receiving means is
`completely free from bubbles.
`If silicone gel material of the sheet-formed strip con
`tains bubbles, large bubbles will be included in the fin
`ished silicone gel sheet and its uniform shock absorbing
`performance will be impaired or silicone gel sheet will
`be partly damaged.
`In case of the apparatus in accordance with the pres
`ent invention, such problem is eliminated by sealing the
`tank which contains silicone gel material and reducing
`the internal pressure of the tank to expel bubbles from
`silicone gel material in the material supplying means, for
`example, immediately before it is fed into the hopper.
`Another further object of the present invention is to
`provide an apparatus for laminating both sides of the
`sheet-formed strip supplied from the nozzle to the mov
`able receiving means, that is, the thin silicone gel mate
`rial with heat-resistant films at its both sides and rolling
`this laminated thin sheet-formed strip covered with
`films at its both sides by the rollers before heat treat
`ment. Thus, the silicone gel sheet can be formed to have
`a uniform thickness.
`These upper and lower films should preferably be
`easily removable from silicone so that they can be re
`placed with other types of films such as, for example,
`thermoplastic film, depending on the purpose of use of
`the silicone gel sheet.
`BRIEF DESCRIPTION OF THE DRAWINGS
`FIG. 1 is a partly cutaway rough side view illustrat
`ing the construction of the apparatus in accordance
`with the present invention,
`FIG. 2 is a vertical front view of the tray type con
`tainer as the movable receiving means for use in the
`embodiment shown in FIG. 1,
`-
`FIG. 3 is a rough side view showing another embodi
`ment of the apparatus in accordance with the present
`invention, and
`FIG. 4 is a plan view showing the embodiment of the
`film replacing mechanism to be used in the apparatus
`shown in FIG. 3.
`PREFERRED EMBODIMENT OF THE
`INVENTION
`Referring to FIG. 1 which is a partly cutaway rough
`side view illustrating the construction of the apparatus
`in accordance with the present invention, there is
`shown the material supplying means 20 which supplies
`silicone gel material 10. This means 20 is provided with
`the hopper 21 which is the storing means and the screw
`conveyor 22 shown as the pressurized feeding means.
`This screw conveyor 22 is connected to the nozzle 30 to
`which silicone gel material 10 is supplied from the
`screw conveyor 22. The transfer unit 40 and the heating
`section combined with this transfer unit 40 are shown
`below said nozzle 30.
`Said hopper 21 can be otherwise constructed if it can
`store silicone gel material 10. In the embodiment, the
`hopper is flared and opened upwardly to admit kneaded
`silicone gel material, which is supplied down to the
`screw conveyor 22 at a lower position by its own
`weight.
`The screw conveyor 22 supplies under the specified
`pressure silicone gel material 10 supplied from the
`hopper 21 to the nozzle 30 and silicone gel material 10
`is extruded from the nozzle 30 by virtue of this pressure.
`
`50
`
`35
`
`SUMMARY OF THE INVENTION
`An object of the present invention is to provide an
`apparatus capable of automatically processing silicone
`gel material with high viscosity without manual opera
`tion and thus manufacturing a silicone gel sheet with the
`specified thickness.
`To materialize this object, the apparatus in accor
`dance with the present invention is provided with a
`device having a material supplying means for supplying
`kneaded silicone gel material such as, for example, a
`45
`storing means such as a hopper into which the material
`is charged and a pressurized feeding means for feeding
`under pressure silicone gel material taken out from the
`hopper, a nozzle for discharging silicone gel material
`supplied from said material supplying means such as, for
`example, a nozzle having a narrow and long discharg
`ing port which is connected to said pressurized feeding
`means and horizontally open to discharge silicone gel
`material fed under pressure from said pressurized feed
`ing means in the specified thickness and width, at least
`55
`one movable receiving means which receives the sheet
`formed strip made of silicone gel material discharged
`from said nozzle and moves keeping pace with the dis
`charging speed of the sheet-formed strip such as, for
`example, a tray type container provided on the belt
`conveyor, and a heating section for heating the sheet
`formed strip on said movable receiving means and said
`apparatus is adapted so that the sheet-formed strip made
`of silicone gel material which is discharged from said
`nozzle is extended over the movable receiving means
`65
`along with movement of said movable receiving means
`and heated by the heating section to gel silicone gel
`material in the form of sheet.
`
`

`
`4,950,148‘ '
`4
`cone Kabushiki Kaisha, for avoiding adhesion of sili-
`cone gel material 10 to said movable receiving means 41
`and said holding plate 45. Thus, the gelled silicone gel
`sheet can be easily taken off from the movable receiving
`means 41.
`
`3
`The material supplying pressure and speed of the
`screw conveyor 22 are set by the variable speed drive
`motor 23.
`
`The discharging port 31 of said nozzle 30 is adapted
`so that it is open narrow and long right above the mov-
`able receiving means 41 provided on said transfer unit
`40 in the direction of width, that is, the direction from
`the surface of the paper with the figure shown to the
`rear of the paper as the horizontal direction and the
`opening size in the direction of thickness at right angles
`to that of width, that is, the transversal direction in FIG.
`1, can be freely set by, for example, replacing the nozzle
`tip, and the thickness of silicone gel material 10 is con-
`trolled.
`
`10
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`15
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`20
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`25
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`30
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`Referring to FIG. 3, there is shown another embodi-
`ment of the apparatus in accordance with the present
`invention.
`In this embodiment, bubbles are removed from sili-
`cone gel material 100 in the material supplying means
`before it is supplied to the hopper and the sheet-formed
`strip 110 made of silicone gel material is rolled by a pair
`of upper and lower side rollers.
`In addition,
`in this embodiment, the sheet-formed
`strip made of silicone gel material is laminated with
`films at its both sides and the lower side film is extended
`over the belt conveyor as the movable receiving means.
`In this embodiment, a silicone material made up by
`mixing fine hollow particles such as, for example, Fillite
`(trademark) or Expancel (trademark) manufactured by
`Nippon Fillite Kabushiki Kaisha in a
`two-liquid
`kneaded type silicone material such as, for example,
`Toray Silicone CF5027 (trademark) or Toray Silicone
`CYS2 manufactured by Toray Silicone Kabushiki Kai-
`sha or KE-1051 (trademark) manufactured by Shinetsu
`Kagaku Kogyo Kabushiki Kaisha is used as silicone gel
`material. Such silicone gel is disclosed by the U.S. Pa-
`tent Application Ser. No. 814726.
`The apparatus of this embodiment comprises the
`material supplying means 200, nozzle 300, transfer unit
`400 and heating section 500. Said material supplying
`means 200 is provided with the hopper 210, kneading
`unit 220 for kneading and treating silicone gel material
`100 and bubble removing unit 230 following the knead-
`ing unit 220.
`Said kneading unit 220 has a pair of kneading tanks
`221 and 221' for separately storing liquids A and B and
`the kneading feeder 222 such as the kneader pump
`which is provided at the lower parts of these kneading
`tanks 221 and 221’.
`Liquids A and B for silicone gel material 100 are
`respectively mixed with said fine hollow particles in
`individual tanks 221 and- 221’.
`For this purpose, rotary vanes 223 and 223’ are re-
`spectively provided inside the tanks 221 and 221’ to
`individually stir liquid A and liquid B to mix it with fine
`hollow particles.
`'
`Tanks 221 and 221’ are respectively provided with
`valves 224 and 224’, which will be opened to supply
`liquids A and B to the feeder 222. In other words, the
`gelling phenomenon during kneading can be prevented
`by mixing fine hollow particles in liquids A and B in
`different tanks 221 and 221’.
`These tanks 221 and 221’ are installed on the upper
`floor of the plant and utilizes the gravity as a supple-
`mentary force for pressurized supplying of liquids A
`and B to the feeder 222 located on the lower floor.
`For mixing said fine hollow particles, kneading tanks
`221 and 221’ are provided with the tank 225 for supply-
`ing fine hollow particles from which a required quantity
`of fine hollow particles is supplied to a pair of kneading
`tanks 221 and 221’ through valves 226 and 226’, respec-
`tively.
`The feeder 222 kneads liquids A and B which have
`been mixed with fine hollow particles into a gelled
`solidifiable state of material and feeds it to the debub-
`bling unit 230 which removes air bubbles from the mate-
`rial 100.
`
`Silicone gel material 10 discharged from this dis-
`charging port 31 is formed in layers on the movable
`receiving means 41 as a thin sheet-formed strip 11
`which has the thickness determined by the opening size
`of the discharging port 31.
`Said movable receiving means 41 is formed by the
`tray type container which is remountably provided on
`the belt conveyor 42. However, depending on the case,
`the upper surface of the belt conveyor 42 can be made
`of steel
`to directly serve as the movable receiving
`means.
`
`Said movable receiving means 41 is arranged so that
`the direction of its width, that is, the direction orthogo-
`nally intersecting the forwarding direction, matches to
`the direction of width of the discharging port 31 of said
`nozzle 30 and accordingly the sheet-formed strip 11
`made of silicone gel material 10 which is discharged
`from the nozzle 30 is loaded on the movable receiving
`means 41 which moves in the same direction as the
`discharging direction and is extended on the movable
`receiving means 41 which moves at the speed kept pace
`with the discharging speed of silicone gel material 10.
`Said movable receiving means 41 is driven by the
`variable speed drive 43 which is controlled in relation to
`the drive motor 23 for said screw conveyor 22.
`is
`Said heating section 50 in said embodiment
`equipped with the multi-staged heating furnace 51
`which is constructed so that, for example, a number of
`tray type containers 41 are stacked to separately heat
`the tray container type movable receiving means 41
`unloaded from the belt conveyor 42. If the upper sur-
`face of the belt conveyor 42 is directly used as the mov-
`able receiving means as described above, the heating
`section through which the belt conveyor 42 passes dur-
`ing running is provided and a means for taking up gelled
`silicone gel sheet after heat treatment is provided fol-
`lowing said heating section.
`The thickness and the width of said silicone gel sheet
`can be freely set by replacing the discharging tip of said
`nozzle 30 or forming the nozzle 30 itself so that the
`opening width and thickness of the discharging port 31
`can be adjusted. For more strictly setting the thickness
`of silicone gel sheet, liners 44 and 44’ with the specified
`thickness can be provided at both sides of the tray type
`movable receiving means 41 as shown in FIG. 2 to feed
`sheet-formed strip 11 made of silicone gel material be-
`tween these liners 44 and 44’ and a smoothed flat hold-
`ing plate 45 can be placed on this sheet-formed strip 11
`to make the thickness of sheet-formed strip 11 uniform
`by its own weight or applying a certain specified pres-
`sure with a separate means.
`Hereupon, it is preferable to apply in advance a part-
`ing agent such as, for example, the silicone oil (trade-
`name: SH-3749) which is manufactured by Toray Sili-
`
`

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`4,950,148
`6
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`. The sheet-formed strip 110 is rolled in the specified
`This debubbling unit 230 is constructed with the end
`thickness by a pair of upper and lower side rollers 450
`less belt 231 which circulates in a vertical direction and
`and 450" before it reaches the heating section 500 during
`equipped with a plurality of debubbling tanks 232
`transportation. Though the rollers 450 and 450' also
`whereby the debubbling tanks 232 intermittently move
`serve the feeding-out rollers in the embodiment, the
`along with circulatory movement of the endless belt 231
`embodiment is not restricted to this construction.
`and stop in sequence at a position where silicone gel
`Said films 410 and 420 are preferably set so that they
`material 100 is supplied from the feeder 222, the debub
`can be removed when the sheet-formed strip 110 is
`bling position and a position where silicone gel material
`taken out as the silicone gel sheet. Thus, films 410 and
`100 is supplied to the hopper 210. At the debubbling
`420 can be removed from the product silicone gel sheet
`position for this tank 232 is provided the cover 233
`10
`and the covering films conforming to the use of the
`which lowers from the upper position to close the open
`silicone gel sheet can be instead laminated onto the
`ing of the tank 232 when the tank 232 is stopped. The
`silicone gel sheet.
`cover 233 is provided with the pressure reducing means
`In the embodiment, a pair of recovery wind-up reels
`such as, for example, the vacuum pump 234 etc. to
`401 and 402 which are driven by the means (not shown)
`reduce the internal pressure of the tank 232 tightly
`are provided at the end part of the heating section 500
`closed by the cover 233.
`to remove and take up films 410 and 420 from the sheet
`Accordingly, air bubbles contained in silicone gel
`formed strip 110, and these reels 432 and 402 may be
`material 100 in the tank 232 during the kneading process
`used as the supplying side reels 431 and 431'.
`will be removed by reduction of the internal pressure of
`To ensure easy removal of films 410 and 420 from the
`20
`the tank 232.
`silicone gel sheet, the parting agent is applied to films
`The tank 232 turns down to a position above the
`410 and 420 by an applying means such as, for example,
`hopper 210 after air bubbles have been removed and
`the felt brushes 460 and 460' before they are laminated
`stops at this position with its opening faced down.
`onto the sheet-formed strip 110 and dried by the fans
`Accordingly silicone gel material 100 in the tank 232
`470 and 470' after it has been applied.
`flows out from the tank 232 into the hopper 210.
`The sheet-formed strip 110 rolled by the rollers 450
`At the outlet side of the hopper 210 is provided the
`and 450' is guided into the heating tunnel 510 of the
`pressurized feeding means 212 such as, for example, the
`heating section 500 by the belt conveyor 440. Inside this
`screw for feeding silicone gel material 100 under pres
`heating tunnel 510 is provided the heating means such
`sure whereby silicone gel material 100 is pushed out by
`as, for example, the far infrared heater 520 and the gel
`this pressurized feeding means 212 onto the material
`30
`ling of the sheet-formed strip 110 is completed while it
`supplying passage. Said passage, for example, a flexible
`passes through this heating tunnel 510.
`hose 211, preferably a transparent hose made of polyvi
`Said belt conveyor 440 is provided at the heating
`nyl chloride, is connected between the output of the
`Section side of the rollers 450 and 450' in the embodi
`hopper 210 and the nozzle 300 and this flexible hose 211
`is freely reconnectable to the hopper for cleaning after
`ment.
`The roll 441 at the starting end of this belt conveyor
`the work has been finished.
`440 is supported by the framework 432 of said film
`The pressurized feeding screw 212 is provided inside
`supplying unit 430 and the framework 432 is loaded on
`the hopper 210 and silicone gel material 100 in the
`the rail 433 with wheels 434 and 434'.
`hopper 210 is pushed out toward the nozzle 300.
`Said framework 432 is tensioned by the spring mecha
`In case that, for example, debubbling is carried out
`mism 435 with said heating tunnel 510 as the fulcrum and
`inside the kneading tanks 221 and 221', the hopper 210
`the belt conveyor 440 is also tensioned by the repulsive
`can be omitted from the material supplying means 200
`force of this spring.
`since the kneading feeder 222 can be directly connected
`The silicone gel sheet 110' whose gelling has been
`to the nozzle 300 to supply silicone gel material 100 to
`completed is taken up at the taking-up section 530 lo
`45
`the nozzle 300.
`cated beside the heating tunnel 510. However, the sili
`The sheet-formed strip 110 discharged from this noz
`cone gel sheet cannot be actually used as having been
`zle 300 is laminated with films 410 and 420 at its both
`taken up and generally it is sealed into a covering mem
`sides immediately after it has been discharged.
`ber such as a covering film, and it is used as the so-called
`This nozzle 300 is made so that silicone gel material
`“gel-filled pad”.
`100 inside the nozzle is discharged out by its own
`50
`If said upper and lower films 410 and 420 are suitable
`weight and, in this embodiment, accordingly the screw
`as the covering material to an application environment
`conveyor as the pressurized feeding means is not em
`where the gel-filled pad is to be used, the films 410 and
`ployed.
`420 can be adhered to make the gel-filled pad. How
`The transfer unit 400 is provided with the film sup
`ever, since the application environment where the gel
`plying unit 430 and a pair of reels 431 and 431' of this
`55
`filled pad is used varies differently, films 410 and 420
`film supplying unit 430 are wound with the upper side
`which are inexpensive, non-massive and heat resistant
`film 420 and the lower side film 410 serving as the mov
`should be used when manufacturing the silicone gel
`able receiving means. The lower side film 410 is ex
`sheet and another type of covering material which
`tended horizontally below the discharging port 310 so
`meets the application environment should be replaced
`that the lower side film 410 comes in contact with the
`with films 410 and 420 for use on the product silicone
`sheet-formed strip 110 and the upper side film 420 is
`gel sheet 100'.
`supplied from a position above the discharging port 310
`For example, an extremely thin polyester film is suit
`so that the upper side film 420 is laminated onto the
`able as films 410 and 420 to be used only when manufac
`upper surface of the sheet-formed strip 110.
`turing the silicone gel sheet, and polyvinyl chloride
`The sheet-formed strip 110 thus covered with films
`film, polyurethane film or a copolymerized film of poly
`410 and 420 at its both sides is horizontally transferred
`urethane and polyvinyl chloride is favorable as the
`by the carrying means such as, for example, the belt
`covering material for the product gel-filled pad.
`conveyor 440 etc. and guided to the heating section 500.
`
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`4,950,148
`8
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`means for supplying silicone gel material as a sheet
`For replacing the films, a continuous silicone gel
`formed strip onto said film on said transfer means
`sheet 100' is cut in appropriate sizes, the films applied to
`through said discharging port;
`upper and lower sides of the cut silicone gel sheets are
`a material supplying means for supplying silicone gel
`removed and the films suitable to the application envi
`material to said nozzle, said material supplying
`ronment are adhered again to the upper and lower sur
`means having a hopper connected to said nozzle
`faces of the silicone gel sheet as the covering material
`and a pressurized feeding means connected to said
`instead of the previously used films.
`hopper, a bubble removing means connected to
`If the films are replaced on the continuous silicone gel
`said hopper for removing bubbles from the silicone
`sheet, the film 420 (410) can be wound up by the wind
`gel material being supplied to said hopper, a feeder
`up reel 401 (402) to remove it from the silicone gel sheet
`10
`connected to said bubbles removing means for
`100' and new covering films 420' (one of which is not
`kneading and feeding silicone gel material under
`shown) unwound from the film supplying reel 436 can
`pressure to said bubble removing means, two
`be immediately adhered onto the upper and lower sur
`kneading tanks connected to said feeder and each
`face of the silicone gel sheet 100'.
`having mixing means therein, the first tank being
`The present invention is not limited to the abovemen
`15
`for supplying the first of two liquids for preparing
`tioned embodiment and is available in various variations
`a two-liquid kneaded type of silicone gel material
`within the range of the claims and spirit of the present
`and the second tank for supplying the second of the
`invention.
`two liquids, and at least one further tank connected
`What is claimed is:
`to said two kneading tanks for supplying fine hol
`1. An apparatus for manufacturing a silicone gel
`low particles to said two kneading tanks;
`sheet, comprising:
`a heating section spaced along said transfer means
`a transfer means having an upper receiving surface;
`from said nozzle for heating the sheet-formed strip
`means for moving said transfer means so as to move
`said upper surface in a direction at a predetermined
`on said transfer means for gelling it; and
`speed;
`means on the end of said heating section toward
`supplying means for supplying a thin heat resistant
`which said transfer means is moving for peeling
`film to said upper receiving surface so as to leave
`said film from the under side of the gelled sheet
`formed strip.
`an upper surface of said film exposed;
`applying means for applying a parting agent to said
`2. An apparatus as claimed in claim 1 in which said
`nozzle has a discharge port and said nozzle comprises
`upper surface of said film;
`means for varying the dimension of the discharging port
`a nozzle spaced along said transfer means from said
`applying means in the direction of movement of
`of said nozzle in the direction of movement of said
`transfer means for varying and adjusting the thickness
`said transfer means, said nozzle having a long nar
`row discharging port orthogonally intersecting the
`of said sheet-formed strip.
`direction of forward movement of said receiving
`35
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