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1. 发明专利

JPH09302218A THERMOPLASTIC POLYURETHANE RESIN COMPOSITION FOR FILM AND FILM 失效
公开(公告)号：JPH09302218A
公开(公告)日：1997-11-25
申请号：JP14512296
申请日：1996-05-15
申请人： TONEN SEKIYUKAGAKU KK
发明人： TODA HIDEAKI , ISHIZUKA HIDENORI , MIYASAKA KENJI
IPC分类号： C08J5/18 , C08L75/00 , C08L75/04
摘要： PROBLEM TO BE SOLVED: To provide a thermoplastic polyurethane resin composition giving a filmy product which, even when stretchable with a low stress and wound into a large roll, suffers no blocking over long and can retain its quality stably. SOLUTION: This composition comprises 4.0-70wt.% thermoplastic polyurethane resin, 10-25wt.% ethylene/propylene/diene copolymer, 10-25wt.% low-density polyethylene resin, 5-20wt.% styrene elastomer having a content of styrene modified with an unsaturated carboxylic acid (derivative) of 30wt.% or lower, 0-20wt.% unmodified styrene elastomer, and 2-15wt.% inorganic filler.

2. 发明专利

JPH0852808A METHOD FOR PREVENTION OF BLOCKING OF STRETCHABLE FILM CONSISTING OF THERMOPLASTIC POLYURETHANE RESIN COMPOSITION 失效
公开(公告)号：JPH0852808A
公开(公告)日：1996-02-27
申请号：JP20792994
申请日：1994-08-09
申请人： TONEN SEKIYUKAGAKU KK
发明人： TODA HIDEAKI , ISHIZUKA HIDENORI , MIYASAKA KENJI
IPC分类号： C08J5/18 , B29C69/00 , B29C71/00 , B29K75/00 , B29L7/00 , C08L75/00 , C08L75/04
摘要： PURPOSE:To provide a method for prevention of blocking of a stretchable film consisting of a thermoplastic polyurethane resin composition. CONSTITUTION:A detachable film made of a resin composition consisting of 40-60wt.% of thermoplastic polyurethane, 10-30wt.% of ethylene-propylene-diene copolymer, 10-30wt.% of low density polyethylene resin, 10-30wt.% of styrene elastomer modified with unsaturated carboxylic acid or its derivative, and 2-10wt.% of unmodified styrene elastomer is prevented from being blocked by this method. This method is composed of the following processes; (A) a raw fabric of the stretchable film is taken off so that hardness from a surface of a take-off material [according to spring hardness test (type C) specified in JIS K 6301] is 60 degree or under; (B) the taken-off material of the raw fabric is aged at 60 deg.C or lower for 3hr or longer; (C) the raw fabric is drawn out and slit by a specific width; and (D) the slit raw fabric is taken off so that the hardness from the surface of the coiled material is 75 degree or under.

3. 发明专利

JPH0841316A EXTENSIBLE FILM COMPRISING THERMOPLASTIC POLYURETHANE RESIN COMPOSITION 失效
公开(公告)号：JPH0841316A
公开(公告)日：1996-02-13
申请号：JP19739594
申请日：1994-07-29
申请人： TONEN SEKIYUKAGAKU KK
发明人： TODA HIDEAKI , ISHIZUKA HIDENORI , MIYASAKA KENJI
IPC分类号： C08J5/18 , B29C55/28 , B29K23/00 , B29K75/00 , C08L23/06 , C08L23/16 , C08L53/00 , C08L75/00 , C08L75/04
摘要： PURPOSE:To provide an extensible film which comprises a thermoplastic polyurethane resin compsn. and has excellent high-speed hot-melt adhesion, excellent extensibility under low stress, low extension permanent set, and adequate strength. CONSTITUTION:A thermoplastic polyurethane resin compsn. comprising 40 to 60wt.% thermoplastic polyurethane resin, 10 to 30wt.% ethylene/propylene/diene copolymer, 10 to 30wt.% low-density polyethylene resin; and 10 to 30wt.% styrene elastomer modified with an unsatd. carboxylic acid or a deriv. thereof and having a styrene content of not more than 30wt.%.

4. 发明专利

JPH0839689A REPAIRING METHOD OF PINHOLE PART OF ELASTIC URETHANE FILM 失效
公开(公告)号：JPH0839689A
公开(公告)日：1996-02-13
申请号：JP19626094
申请日：1994-07-29
申请人： TONEN SEKIYUKAGAKU KK
发明人： TODA HIDEAKI , ISHIZUKA HIDENORI , MIYASAKA KENJI
IPC分类号： B29C73/10 , B29K75/00 , B29K105/04 , B29L7/00
摘要： PURPOSE:To repair and join at a low temperature in a short time a pin hole part of a raw fabric film, by a method wherein the other urethane film is abutted against the pin hole part of the urethane film comprised of a specific polyurethane composition, heated and pressurized by a glass fiber woven fabric which is coated with fluororesin. CONSTITUTION:The other urethane film 4 is abutted against a pinhole part 3 of a raw fabric film of polyurethane by placing the raw fabric film 2 on a rest l having mold release properties those films 2, 4 are heated and pressurized by a heating device 6 through a glass fiber woven fabric 5 which is comprised by coating the films with fluorores in. The raw fabric film is constituted of 40-70wt.% thermoplastic polyurethane resin, a 10-25wt.% ethylene-propylene- diene copolymer, 10-25wt.% low density polyethylene, a 5-20wt.% styrene elastomer wherein a ratio of the styrene modified by unsaturated carboxylic acid or its derivative is not exceeding 30wt.% and a 0-20wt.% unmodified styrene elastomer.

5. 发明专利

JPH09155947A FILM THICKNESS CONTROLLING METHOD FOR EXTRUSION MOLDED FILM 失效
公开(公告)号：JPH09155947A
公开(公告)日：1997-06-17
申请号：JP33580395
申请日：1995-11-30
申请人： TONEN SEKIYUKAGAKU KK
发明人： YAMAGUCHI SOICHIRO , NOGATA TETSURO , MIYASAKA KENJI , KONO KOICHI , TAKITA KOTARO
IPC分类号： B29C47/88 , B29C48/305 , B29C48/92 , B29L7/00 , B29C47/14 , B29C47/92
摘要： PROBLEM TO BE SOLVED: To uniformly control the thickness of a resin film by spraying the air before an extrusion molded resin sheet arrives at a frost line, and controlling the pressure of the air and/or the spraying area in this case. SOLUTION: Since a resin sheet S is still at the temperature higher than the softening point immediately after the sheet S is extruded, it is brought into contact with a chill roll 14 to be quickly cooled, and the air is brought into contact with the sheet S before the sheet S is at the temperature higher than the softening temperature, thereby regulating the thickness of the resin film. To this end, the air is sprayed to the sheet S from the air nozzle 20 provided at the upstream side from the frost line. A thicknessmeter 17 is provided before a winding roll 18, and the pressure of the air injected from the nozzle 20 and/or spraying interval are regulated in response to the difference (measured value of film thickness-object value of film thickness) by a feedback system. As a result, it makes it possible to easily control the film to a desired thickness.

6. 发明专利

JPH0976331A PRODUCTION OF FOAMED POLYOLEFIN SHEET 失效
公开(公告)号：JPH0976331A
公开(公告)日：1997-03-25
申请号：JP23845495
申请日：1995-09-18
申请人： TONEN SEKIYUKAGAKU KK
发明人： ISONO MASATOSHI , YAMAGUCHI SOICHIRO , MIYASAKA KENJI
IPC分类号： B29C47/34 , B29C47/14 , B29C47/88 , B29K105/04 , B29L7/00
摘要： PROBLEM TO BE SOLVED: To produce a foamed polyolefin sheet suppressed in the generation of vertical stripes said to be corrugated marks, not generating neck-in even if high speed molding is performed and having a smooth surface free from wrinkles. SOLUTION: The sheet like foam obtained by extruding a molten polyolefin containing a foaming agent from an extruder die 1 is set to an angle of 30-60 deg. by a taking-over roll 3 and taken over while the distance from the outlet of the die to the contact point of the foam of the roll is set to 5-50mm and subsequently cooled and molded by a cooling roll 6 to form a sheet 9.

7. 发明专利

JPH08224735A KNEADING OF POLYMERIC SUBSTANCE AND LIQUID 失效
公开(公告)号：JPH08224735A
公开(公告)日：1996-09-03
申请号：JP5670895
申请日：1995-02-21
申请人： TONEN SEKIYUKAGAKU KK
发明人： NOGATA TETSURO , TAKITA KOTARO , MIYASAKA KENJI , KONO KOICHI
IPC分类号： B29B7/48 , B29B7/60 , B29B7/94
摘要： PURPOSE: To continuously and stably perform the uniform kneading of a polymeric substance and a liquid in large emitting quantities by using a continuous kneader having self-cleaning action in the kneading of the polymeric substance and the liquid and bringing the interior of the kneader in a liquid supply part and a kneading part to a starvation state. CONSTITUTION: In a kneader kneading a natural polymeric substance such as cellulose, natural rubber or protein, a synthetic polymeric substance such as a thermoplastic resin or a thermosetting resin and a liquid such as mineral oil, an org. solvent or water, at least one liquid supply part 22 is provided on the downstream side of a polymeric substance supply part 21 and the interior of the kneader in the polymeric substance supply part 21 and the liquid supply part 22 is set to a starvation state (a state wherein there is a space where the polymeric substance or the mixture of the polymeric substance and the liquid is not present in the space between a cylinder and a screw). The interior of the kneader performing the kneading of the liquid and the polymeric substance is also set to a starvation state. By this constitution, even if there is no filling state of the polymeric substance on the upstream side of the liquid supply part, the kneaded mixture can be transported to a die 23 without generating the back flow of a fluid.

8. 发明专利

JPH0977900A PRODUCTION OF HYDROPHILIC POLYETHYLENE FINELY POROUS FILM 失效
公开(公告)号：JPH0977900A
公开(公告)日：1997-03-25
申请号：JP26069195
申请日：1995-09-13
申请人： TONEN SEKIYUKAGAKU KK
发明人： KAIMAI NORIMITSU , MIYASAKA KENJI , IZUMI YUZO
IPC分类号： C08J9/22
摘要： PROBLEM TO BE SOLVED: To obtain a hydrophilic polyethylene finely porous film useful as a separator for a battery, excellent in affinity for a water-soluble solution system, low in a coefficient of gas permeability, excellent in liquid retention, low in electric resistance and excellent in ionic conduction, by subjecting a specific amount of an acrylic monomer to graft polymerization treatment in the presence of a cross-linking agent on a finely porous film. SOLUTION: (B) An acrylic monomer in an amount of 5-30wt.% is subjected to graft polymerization by ionizing radiation in the presence of (A) a cross- linking agent (preferably divinylbenzene or trimethylolpropane methacrylate) on the surface of pores of a finely porous film comprising a polyethylene containing >=1wt.% of a component having >=7×10 weight-average molecular weight and the surface of the film. The amount of the component A is 0.1-10vol.% based on the volume of the component B and the graft polymerization is preferably carried out in a reaction solution comprising 0.1-50wt.% of the component B and 99.1-50wt.% of a mixture of water and an alcohol (volume ratio 90/100-50/50).

9. 发明专利

JPH0931226A HYDROPHILIC POLYETHYLENE MICROPOROUS FILM, ITS PRODUCTION AND SEPARATOR FOR CELL OR BATTERY USING THE SAME 失效
公开(公告)号：JPH0931226A
公开(公告)日：1997-02-04
申请号：JP20647595
申请日：1995-07-20
申请人： TONEN SEKIYUKAGAKU KK
发明人： KAIMAI NORIMITSU , MIYASAKA KENJI , IZUMI YUZO
IPC分类号： C08J9/00 , C08L23/04
摘要： PROBLEM TO BE SOLVED: To produce the subject film, excellent in affinity for aqueous solution systems, having a high liquid retention ratio and retaining properties and a low gas permeation coefficient and useful as a separator for cells or batteries by carrying out the graft copolymerization of a specific amount of an acrylic monomer with a polyethylene microporous film according to the ionizing radiation treatment. SOLUTION: This hydrophilic polyethylene microporous film is obtained by preparing a solution comprising 10-50wt.% polyethylene, containing >=1wt.% component having >=7×10 weight-average molecular weight, a ratio of weight-average molecular weight/number-average molecular weight of 100-300 and 50-90wt.% solvent, extruding the resultant solution through a die, cooling the extruded solution, forming a gelatinous molding, drawing the formed molding at a temperature below (the melting point of the polyester +10 deg.C), then removing the residual solvent, producing a polyethylene microporous film having 30-95% porosity and 0.005-1μm average through-hole diameter and carrying out the graft copolymerization of 5-30wt.% acrylic monomer with the microporous surface and film surface according to the ionizing radiation treatment. The resultant film has ml.cm/cm .sec.cmHg gas permeation coefficient and

10. 发明专利

JPH08336897A METHOD FOR CONNECTING STRETCHABLE FILM 失效
公开(公告)号：JPH08336897A
公开(公告)日：1996-12-24
申请号：JP14330095
申请日：1995-06-09
申请人： TONEN SEKIYUKAGAKU KK
发明人： TODA HIDEAKI , ISHIZUKA HIDENORI , MIYASAKA KENJI
IPC分类号： B32B27/12 , B29C65/00 , B29C65/08 , B29C73/00 , B29K21/00 , B29K75/00 , B29L7/00 , B32B27/40
摘要： PURPOSE: To provided a new method for connecting the damage hole such as a pinhole of a stretchable urethane film without thermal shrinkage or blocking by external heat without conventional double structure becoming expensive. CONSTITUTION: A film 5 having the same properties as those of a film A is brought into contact with the hole of an urethane film 2 (film A) having a damage hole 3, and the hole is pressed by an ultrasonic welder having a spherical horn end is pressed via glass fiber woven fabric 6 of fluorine resin coating to connect the hole 3. Thus, an urethane foam molding monolithic vacuum molding back-up sheet can be formed without liquid leakage even from a raw fabric film having a pinhole which cannot be heretofore used, and even a single- layer film can be formed.

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