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公开(公告)号：US5437918A
公开(公告)日：1995-08-01
申请号：US145621
申请日：1993-11-04
申请人： Keiko Taniguchi , Masahiro Washino , Shinobu Moriya , Hosei Shinoda , Masami Ohtaguro , Akihiro Funae , Shigeru Iimuro
发明人： Keiko Taniguchi , Masahiro Washino , Shinobu Moriya , Hosei Shinoda , Masami Ohtaguro , Akihiro Funae , Shigeru Iimuro
CPC分类号： D04H3/02 , C08G63/08 , D04H1/435 , D04H1/4382 , D04H3/14 , Y10T428/31786 , Y10T442/697
摘要： A degradable non-woven fabric obtained from an web formed of lactic acid-based polymer filaments comprising of one or more lactic acid-based polymers selected from a poly (DL-lactic acid) having more than 80 mol % of L-lactic acid units, poly (DL-lactic acid) having more than 80 mol % of D-lactic acid units, L-lactic acid/hydroxycarboxylic acid copolymer having 70 mol % or more of L-lactic acid units, and D-lactic acid/hydroxycarboxylic acid copolymer having 70 mol % or more of D-lactic acid units, and a preparation process of the degradable non-woven fabric which has good dimensional stability and can be degraded and disappeared under natural environment when abandoned.
摘要翻译： 从由乳酸类聚合物长丝形成的纤维网得到的可降解无纺布，其包含一种或多种乳酸基聚合物，所述乳酸基聚合物选自具有大于80mol％的L-乳酸单元的聚（DL-乳酸） ，D-乳酸单元多于80摩尔％的聚（DL-乳酸），L-乳酸单元70摩尔％以上的L-乳酸/羟基羧酸共聚物，D-乳酸/羟基羧酸 具有70摩尔％以上的D-乳酸单元的共聚物和可降解无纺布的制备方法，其具有良好的尺寸稳定性，并且在废弃时可以在自然环境下降解和消失。
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公开(公告)号：US5663288A
公开(公告)日：1997-09-02
申请号：US553979
申请日：1995-11-06
CPC分类号： C09J7/0285 , C08K5/005 , C09J7/0282 , C08K5/132 , C08K5/3475 , C08L2205/02 , C08L67/04 , C09J2203/306 , C09J2205/106 , C09J2467/006 , Y10T428/28 , Y10T428/2852
摘要： Articles matters which can be degraded and disappear in the natural environment are a degradable adhesive film which can be used for surface protection or indication after printing on the film surface and has an adhesive layer on one side of a substrate film obtained from a lactic acid base polymer such as polylactic acid and a lactic acid/hydroxycarboxylic acid copolymer having a molecular weight of 30,000.about.500,000, and a degradable resin composition which is excellent in weatherability and comprises 100 parts by weight of a lactic acid base polymer and 0.001.about.5 parts by weight of one or more additives selected from ultraviolet absorbers and light stabilizers.
摘要翻译： 可以在自然环境中降解和消失的物品是可降解的粘合剂膜，其可以用于在膜表面上印刷之后的表面保护或指示，并且在由乳酸碱获得的基底膜的一侧上具有粘合剂层 聚乳酸，聚乳酸，乳酸/羟基羧酸共聚物等分子量为30,000，差异为500,000，耐候性优异的可降解树脂组合物，含有100重量份乳酸基聚合物，0.001重量份 一种或多种选自紫外线吸收剂和光稳定剂的添加剂的重量。
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公开(公告)号：US5489474A
公开(公告)日：1996-02-06
申请号：US113102
申请日：1993-08-30
CPC分类号： C09J7/0285 , C08K5/005 , C09J7/0282 , C08K5/132 , C08K5/3475 , C08L2205/02 , C08L67/04 , C09J2203/306 , C09J2205/106 , C09J2467/006 , Y10T428/28 , Y10T428/2852
摘要： Articles which can be degraded and disappear in the natural environment are a degradable adhesive film which can be used for surface protection or indication after printing on the film surface and has an adhesive layer on one side of a substrate film obtained from a lactic acid base polymer such as polylactic acid and a lactic acid/hydroxycarboxylic acid copolymer having a molecular weight of 30,000-500,000, and a degradable resin composition which is excellent in weatherability and comprises 100 parts by weight of a lactic acid base polymer and 0.001-5 parts by weight of one or more additives selected from ultraviolet absorbers and light stabilizers.
摘要翻译： 可以在天然环境中降解和消失的物品是可降解的粘合剂膜，其可以用于在膜表面上印刷之后的表面保护或指示，并且在由乳酸基聚合物获得的基材膜的一侧上具有粘合剂层 如聚乳酸和分子量为30,000-500,000的乳酸/羟基羧酸共聚物，以及耐候性优异的包含100重量份乳酸基聚合物和0.001-5重量份的可降解树脂组合物 的一种或多种选自紫外线吸收剂和光稳定剂的添加剂。
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公开(公告)号：US5260407A
公开(公告)日：1993-11-09
申请号：US550015
申请日：1990-07-09
申请人： Masumi Saruwatari , Yasuhiko Ohta , Yasuhiro Fujii , Yasuko Honji , Shoichi Tsuji , Shinobu Moriya
发明人： Masumi Saruwatari , Yasuhiko Ohta , Yasuhiro Fujii , Yasuko Honji , Shoichi Tsuji , Shinobu Moriya
IPC分类号： B29C55/00 , B29C55/02 , B29C67/24 , B29K79/00 , B29L7/00 , C08G73/10 , C08J5/18 , H05K1/03 , H05K3/00 , C08G69/26
CPC分类号： C08J5/18 , B29C55/005 , B29C67/24 , B29K2079/085 , C08J2379/08 , H05K1/0346 , H05K3/0011 , Y10T428/31721
摘要： A polyimide film essentially consisting of polyimide having recurring units of the formula (I): ##STR1## which has a density of 1.335 to 1.390 g/cm.sup.3 at 23.degree. C. and/or a refractive index of 1.605 to 1.680 at 23.degree. C. in the direction of thickness and is transparent; and a preparation process of the polyimide film by extruding the polyimide having recurring units of the above formula (I) through a common melt-extrusion process, casting in a chill-roller to obtain an unstretched film, uniaxially or biaxially stretching the unstretched film to cause molecular orientation, and successively setting the stretched film through heat-treatment.
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公开(公告)号：US5237044A
公开(公告)日：1993-08-17
申请号：US422895
申请日：1989-10-17
申请人： Masumi Saruwatari , Shoichi Tsuji , Masami Nakano , Shinobu Moriya , Masahiro Ohta , Toshiyuki Nakakura
发明人： Masumi Saruwatari , Shoichi Tsuji , Masami Nakano , Shinobu Moriya , Masahiro Ohta , Toshiyuki Nakakura
CPC分类号： C08G73/1071 , B29C47/0021 , B29C47/822 , C08G73/1046 , C08G73/105 , C08G73/1064 , C08L79/08
摘要： Polyimide sheets having excellent thermal resistance and good surface appearance of the resultant sheets are obtained by a melt-extrusion process from a specific polyimide in the temperature range of 300.degree. C. to 450.degree. C. and a moisture content of 200 ppm or less.
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公开(公告)号：US5233011A
公开(公告)日：1993-08-03
申请号：US838392
申请日：1992-02-18
申请人： Masumi Saruwatari , Shoichi Tsuji , Masami Nakano , Shinobu Moriya , Masahiro Ohta , Toshiyuki Nakakura
发明人： Masumi Saruwatari , Shoichi Tsuji , Masami Nakano , Shinobu Moriya , Masahiro Ohta , Toshiyuki Nakakura
CPC分类号： H01B13/14 , C08G73/10 , C08G73/105 , C08G73/1064 , C08G73/1071 , H01B3/306 , H01B7/292
摘要： An insulated wire having excellent thermal resistance and good surface appearance is obtained by coating a condutor with a specific polyimide in a temperature range of 300.degree. C. to 450.degree. C. and controlling moisture content to 200 ppm or less.
摘要翻译： 通过在300℃至450℃的温度范围内涂布具有特定聚酰亚胺的调节剂并将水分含量控制在200ppm以下，得到具有优异的耐热性和良好的表面外观的绝缘线。
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公开(公告)号：US5037587A
公开(公告)日：1991-08-06
申请号：US549149
申请日：1990-07-06
申请人： Masumi Saruwatari , Yasuhiko Ohta , Yasuhiro Fujii , Yasuko Honji , Shoichi Tsuji , Shinobu Moriya
发明人： Masumi Saruwatari , Yasuhiko Ohta , Yasuhiro Fujii , Yasuko Honji , Shoichi Tsuji , Shinobu Moriya
CPC分类号： C08J5/18 , B29C47/0021 , B29C47/884 , B29C47/8845 , B29C47/886 , B29C47/887 , B29C47/8875 , C08J2379/08
摘要： In the preparation of a film by melt-extrusion process of thermoplastic polyimide, static charge is applied to a molten film, primary cooling is carried out by adhering the film to a cooling roller having a surface temperature in the range of from the glass transition temperature of said polyimide -50.degree. C. to the glass transition temperature -15.degree. C., the film is successively cooled to 60.degree. C. and less without bringing the film into contact with rollers, and is taken up under tension to give a polyimide film.
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