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1. 发明专利

DE602005027814D1 COPOLYMER ENTHALTENDE ZUSAMMENSETZUNG AUF BASIS VON ALIPHATISCHEM POLYESTERHARZ 未知
公开(公告)号：DE602005027814D1
公开(公告)日：2011-06-16
申请号：DE602005027814
申请日：2005-02-09
申请人： MITSUI CHEMICALS INC
发明人： SHINODA HOSEI , KASHIMA TAKESHI , ENNA MASAHIRO , KOJOH SHINICHI , KANEKO HIDEYUKI , MATSUO SHINGO , KAWAHARA NOBUO , MATSUGI TOMOAKI , MATSUDA YUICHI , ONOGI TAKAYUKI , KAGEYAMA FUMIO
IPC分类号： C08L67/00 , C08L23/00 , C08L23/02 , C08L51/06 , C08L53/00 , C08L67/02 , C08L69/00

2. 发明专利

DE69430291T2 未知
公开(公告)号：DE69430291T2
公开(公告)日：2002-10-24
申请号：DE69430291
申请日：1994-11-15
申请人： MITSUI CHEMICALS INC
发明人： KAMEOKA TAIJI , KASHIMA TAKESHI , AJIOKA MASANOBU , YAMAGUCHI AKIHIRO , SUZUKI KAZUHIKO
IPC分类号： B32B27/10 , B32B27/36 , C08G63/16 , C08G63/60 , C08G63/81 , C08L67/00 , C08L67/02 , D04H1/42 , D04H13/00 , D06N7/04 , B32B23/08
摘要： Formed products such as foams, fabrics for industrial materials, filaments, nonwoven fabrics, composite materials and films which are degradable after use with ease in the natural environment are prepared by using a high molecular weight aliphatic polyester obtained by direct polycondensation of an aliphatic polyhydric alcohol with aliphatic polybasic acid or additionally hydroxycarboxylic acid or oligomers of these materials in a reaction mixture containing a solvent. Foams have excellent thermal insulation and strength; fabrics are excellent in thermal insulation, strength and elongation and can be used for industrial materials; filaments have sufficient strength, flexibility and degradability in a living body and can be used for bioabsorbable surgical filament and fishing lines; nonwoven fabrics can be obtained by bonding a web of filaments and have excellent strength and feeling; composite materials can be prepared by adhering or impregnating fiber, paper, film and others of cellulosics and have excellent strength and water resistance, good flexibility and folding resistance, simultaneously have degradability in the natural environment, and can dissolve polymer films on the surface with ease under alkaline conditions to recover cellulosics alone; and films are excellent in heat resistance and strength.

3. 发明专利

DE69610727T2 未知
公开(公告)号：DE69610727T2
公开(公告)日：2001-05-23
申请号：DE69610727
申请日：1996-03-12
申请人： MITSUI CHEMICALS INC
发明人： HIGUCHI CHOJIRO , SUIZU HIROSHI , TAKAGI MASATOSHI , KASHIMA TAKESHI , TERADO YUJI , KITADA IKUMI , AJIOKA MASANOBU , YAMAGUCHI AKIHIRO , KAMEOKA TAIJI
IPC分类号： C08B3/16 , C08B13/00 , C08B31/02 , C08G63/664 , C08G63/672 , C08G63/81 , C08B3/00
摘要： The invention is a preparation process of a degradable copolymer comprising carrying out dehydration polycondensation of polysaccharide (A) with one or more compounds (B) selected from the group consisting of: (b1) hydroxycarboxylic acid, (b2) polyhydroxycarboxylic acid, (b3) aliphatic polyhydric alcohol arid aliphatic polybasic acid, and (b4) aliphatic polyester derived from aliphatic polyhydric alcohol and aliphatic polybasic acid. According to the process of the invention, a copolymer having a high molecular weight, excellent toughness, transparency and heat resistance, and additionally having a high melt tension can be obtained with a reaction time less than a half of the conventional process. The copolymer obtained by the invention is a material suited for injection molding, extrusion, calendaring, blow forming, balloon forming, vacuum forming and foaming. Particularly, the copolymer obtained by the invention has a high melt tension and thus the molten copolymer is difficult to sag and flow and can be processed with ease into foams and blow bottles.

4. 发明专利

DE69610727D1 未知
公开(公告)号：DE69610727D1
公开(公告)日：2000-11-30
申请号：DE69610727
申请日：1996-03-12
申请人： MITSUI CHEMICALS INC
发明人： HIGUCHI CHOJIRO , SUIZU HIROSHI , TAKAGI MASATOSHI , KASHIMA TAKESHI , TERADO YUJI , KITADA IKUMI , AJIOKA MASANOBU , YAMAGUCHI AKIHIRO , KAMEOKA TAIJI
IPC分类号： C08B3/16 , C08B13/00 , C08B31/02 , C08G63/664 , C08G63/672 , C08G63/81 , C08B3/00
摘要： The invention is a preparation process of a degradable copolymer comprising carrying out dehydration polycondensation of polysaccharide (A) with one or more compounds (B) selected from the group consisting of: (b1) hydroxycarboxylic acid, (b2) polyhydroxycarboxylic acid, (b3) aliphatic polyhydric alcohol arid aliphatic polybasic acid, and (b4) aliphatic polyester derived from aliphatic polyhydric alcohol and aliphatic polybasic acid. According to the process of the invention, a copolymer having a high molecular weight, excellent toughness, transparency and heat resistance, and additionally having a high melt tension can be obtained with a reaction time less than a half of the conventional process. The copolymer obtained by the invention is a material suited for injection molding, extrusion, calendaring, blow forming, balloon forming, vacuum forming and foaming. Particularly, the copolymer obtained by the invention has a high melt tension and thus the molten copolymer is difficult to sag and flow and can be processed with ease into foams and blow bottles.

5. 发明专利

DE69434579D1 未知
公开(公告)号：DE69434579D1
公开(公告)日：2006-01-26
申请号：DE69434579
申请日：1994-03-30
申请人： MITSUI CHEMICALS INC
发明人： KASHIMA TAKESHI , KAMEOKA TAIJI , HIGUCHI CHOJIRO , AJIOKA MASANOBU , YAMAGUCHI AKIHIRO
IPC分类号： C08G63/16 , C08G63/60 , C08G63/81
摘要： A preparation process of aliphatic polyester having a weight average molecular weight of 15,000 or more by conducting a direct polycondensation reaction of an aliphatic polyhydric alcohol or a mixed aliphatic polyhydric alcohol and an aliphatic polybasic acid or a mixed aliphatic polybasic acid, or additionally a hydroxycarboxylic acid or a mixed hydroxycarboxylic acid or an oligomer of the hydroxycarboxylic acid in a reaction mixture containing an organic solvent. The aliphatic polyester thus obtained contains an extremely small amount of impurities, has low color and can exhibit satisfactory strength in the form of films, filaments and other shaped articles.

6. 发明专利

DE69716815T2 未知
公开(公告)号：DE69716815T2
公开(公告)日：2003-07-03
申请号：DE69716815
申请日：1997-06-03
申请人： MITSUI CHEMICALS INC
发明人： HIGUCHI CHOJIRO , TAKAGI MASATOSHI , KASHIMA TAKESHI , AJIOKA MASANOBU , TERADO YUJI
IPC分类号： C08F2/46 , C08G63/52 , C08G63/676 , C08G63/81
摘要： The invention provides a biodegradable aliphatic polyester elastomer which has rubber-like elasticity, hardness of 80 or less in accordance with ASTM D 676-58T, and elastic modulus from 1 x 10 Pa to 1 x 10 Pa at 25 DEG C, and decomposes with ease in the natural environment, under composting conditions or under hydrolysis conditions. The biodegradable aliphatic elastomer of the invention can be obtained by crosslinking aliphatic polyester containing aliphatic unsaturated polybasic acid as a polymer constituting ingredient and having a weight average molecular weight of 15,000 or more.

7. 发明专利

DE69716815D1 未知
公开(公告)号：DE69716815D1
公开(公告)日：2002-12-12
申请号：DE69716815
申请日：1997-06-03
申请人： MITSUI CHEMICALS INC
发明人： HIGUCHI CHOJIRO , TAKAGI MASATOSHI , KASHIMA TAKESHI , AJIOKA MASANOBU , TERADO YUJI
IPC分类号： C08F2/46 , C08G63/52 , C08G63/676 , C08G63/81
摘要： The invention provides a biodegradable aliphatic polyester elastomer which has rubber-like elasticity, hardness of 80 or less in accordance with ASTM D 676-58T, and elastic modulus from 1 x 10 Pa to 1 x 10 Pa at 25 DEG C, and decomposes with ease in the natural environment, under composting conditions or under hydrolysis conditions. The biodegradable aliphatic elastomer of the invention can be obtained by crosslinking aliphatic polyester containing aliphatic unsaturated polybasic acid as a polymer constituting ingredient and having a weight average molecular weight of 15,000 or more.

8. 发明专利

DE69434579T2 未知
公开(公告)号：DE69434579T2
公开(公告)日：2006-08-24
申请号：DE69434579
申请日：1994-03-30
申请人： MITSUI CHEMICALS INC
发明人： KASHIMA TAKESHI , KAMEOKA TAIJI , HIGUCHI CHOJIRO , AJIOKA MASANOBU , YAMAGUCHI AKIHIRO
IPC分类号： C08G63/81 , C08G63/16 , C08G63/60
摘要： A preparation process of aliphatic polyester having a weight average molecular weight of 15,000 or more by conducting a direct polycondensation reaction of an aliphatic polyhydric alcohol or a mixed aliphatic polyhydric alcohol and an aliphatic polybasic acid or a mixed aliphatic polybasic acid, or additionally a hydroxycarboxylic acid or a mixed hydroxycarboxylic acid or an oligomer of the hydroxycarboxylic acid in a reaction mixture containing an organic solvent. The aliphatic polyester thus obtained contains an extremely small amount of impurities, has low color and can exhibit satisfactory strength in the form of films, filaments and other shaped articles.

9. 发明专利

DE69430291D1 未知
公开(公告)号：DE69430291D1
公开(公告)日：2002-05-08
申请号：DE69430291
申请日：1994-11-15
申请人： MITSUI CHEMICALS INC
发明人： KAMEOKA TAIJI , KASHIMA TAKESHI , AJIOKA MASANOBU , YAMAGUCHI AKIHIRO , SUZUKI KAZUHIKO
IPC分类号： B32B27/10 , B32B27/36 , C08G63/16 , C08G63/60 , C08G63/81 , C08L67/00 , C08L67/02 , D04H1/42 , D04H13/00 , D06N7/04 , B32B23/08
摘要： Formed products such as foams, fabrics for industrial materials, filaments, nonwoven fabrics, composite materials and films which are degradable after use with ease in the natural environment are prepared by using a high molecular weight aliphatic polyester obtained by direct polycondensation of an aliphatic polyhydric alcohol with aliphatic polybasic acid or additionally hydroxycarboxylic acid or oligomers of these materials in a reaction mixture containing a solvent. Foams have excellent thermal insulation and strength; fabrics are excellent in thermal insulation, strength and elongation and can be used for industrial materials; filaments have sufficient strength, flexibility and degradability in a living body and can be used for bioabsorbable surgical filament and fishing lines; nonwoven fabrics can be obtained by bonding a web of filaments and have excellent strength and feeling; composite materials can be prepared by adhering or impregnating fiber, paper, film and others of cellulosics and have excellent strength and water resistance, good flexibility and folding resistance, simultaneously have degradability in the natural environment, and can dissolve polymer films on the surface with ease under alkaline conditions to recover cellulosics alone; and films are excellent in heat resistance and strength.

10. 发明专利

JPH1160662A BIODEGRADABLE ELASTMER AND ITS PREPARATION 失效
公开(公告)号：JPH1160662A
公开(公告)日：1999-03-02
申请号：JP30181497
申请日：1997-11-04
申请人： MITSUI CHEMICALS INC
发明人： HIGUCHI CHOJIRO , KASHIMA TAKESHI , TAKAGI MASATOSHI , TERADO YUJI , AJIOKA MASANOBU
IPC分类号： C08L67/06 , C08F299/04 , C08G63/52 , C08G63/91 , C08L101/16
摘要： PROBLEM TO BE SOLVED: To obtain a biodegradable elastomer having both a rubber elasticity and a biodegradability and to provide a preparation method thereof. SOLUTION: A biodegradable elastomer is obtained by crosslinking an aliphatic polyester containing an aliphatic unsaturated polybasic acid, as the polymer structure content, which polyester is obtained by a heat dehydration of (A) at least one kind selected from the group consisting of (a1) an aliphatic polyhydric alcohol and an aliphatic unsaturated polybasic acid, (a2) an aliphatic unsaturated oligoester and (a3) an aliphatic unsaturated polyester and (B) at least one kind selected from the group consisting of (b1) an aliphatic polyhydric alcohol and an aliphatic saturated polybasic acid, (b2) an aliphatic hydroxycarboxylic acid, (b3) an aliphatic saturated oligoester and (b4) an aliphatic saturated polyester, in an organic solvent in the presence of a catalyst with not more than 500 ppm of produced water and/or an excess monomer.

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