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公开(公告)号：US5247013A
公开(公告)日：1993-09-21
申请号：US902794
申请日：1992-06-26
申请人： Hosei Shinoda , Masami Ohtaguro , Shigeru Iimuro
发明人： Hosei Shinoda , Masami Ohtaguro , Shigeru Iimuro
IPC分类号： C08G63/06 , C08G63/664
CPC分类号： C08G63/664 , C08G63/06
摘要： A biocompatible polyester which has improved hydrolyzability obtained by bonding saccharide to the structure of a polymer consisting of a glycolic acid unit and/or a lactic acid unit, and a process for Preparing the biocompatible polyester are disclosed.
摘要翻译： 公开了具有改善的水解性的生物相容性聚酯，其通过将糖键合到由乙醇酸单元和/或乳酸单元组成的聚合物的结构上而获得，并且制备生物相容性聚酯的方法。
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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：US5194473A
公开(公告)日：1993-03-16
申请号：US525729
申请日：1990-05-21
申请人： Hosei Shinoda , Masami Ohtaguro , Shigeru Iimuro
发明人： Hosei Shinoda , Masami Ohtaguro , Shigeru Iimuro
IPC分类号： A61L17/00 , A61K47/34 , A61L17/12 , A61L17/14 , A61L27/00 , A61L27/26 , A61L31/00 , A61L31/04 , C08G63/08 , C08G63/68 , C08G63/695 , C08G77/42 , C08G77/445 , C08L67/00 , C08L67/04 , C08L83/10 , C08L83/12
CPC分类号： C08G77/445 , A61L17/12 , A61L17/145 , A61L27/26 , A61L31/041 , C08G63/6952 , C08L67/04 , C08L83/12
摘要： In preparing bioabsorbable polyesters containing glycolic acid unit and/or lactic acid unit by the polymerization of glycolide and/or lactide, compositions comprising polyester-silicone copolymers obtained by conducting polymerization in the presence of silicones and the effect of merely mixing the above bioabsorbable polyesters with certain kind of silicones upon the modification, thereby attaining flexibility in particular, of the bioabsorbable polyesters, are disclosed.
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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：US5412067A
公开(公告)日：1995-05-02
申请号：US235534
申请日：1994-04-29
申请人： Hosei Shinoda , Masami Ohtaguro , Akihiro Funae , Shigeru Iimuro
发明人： Hosei Shinoda , Masami Ohtaguro , Akihiro Funae , Shigeru Iimuro
CPC分类号： C08G63/08
摘要： In the preparation of polyester by conducting ring-opening polymerization of a cyclic ester compound in the presence of a hydroxyl compound as a molecular weight regulator in the reaction system, the molecular weight of polyester can be accurately controlled in the desired range by previously estimating the amount of free carboxylic acid contained in the cyclic ester compound and controlling the amount of the hydroxyl compound on the basis of the estimated amount.
摘要翻译： 通过在反应体系中作为分子量调节剂的羟基化合物的存在下进行环状酯化合物的开环聚合来制备聚酯，通过预先估计聚酯的分子量可以精确地控制在所需范围内 环状酯化合物中所含的游离羧酸的量和基于估计量控制羟基化合物的量。
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公开(公告)号：US5304205A
公开(公告)日：1994-04-19
申请号：US840200
申请日：1992-02-24
申请人： Hosei Shinoda , Masami Ohtaguro , Shigeru Iimuro
发明人： Hosei Shinoda , Masami Ohtaguro , Shigeru Iimuro
CPC分类号： D06M13/342 , A61L17/145 , D06M16/00 , D06M23/08 , Y10T428/2913 , Y10T428/2933 , Y10T428/2938 , Y10T428/2964
摘要： A surgical filament which has a surface coated with at least one N-long chain monoacylated basic amino acid having an aliphatic acyl group of from 6 to 22 carbon atoms or with a composition containing at least one of said N-long chain monoacylated basic amino acid, and has improved surface-slipping characteristics such as the ability to be passed through tissue and tie down property.
摘要翻译： 一种手术细丝，其具有涂覆有至少一个具有6至22个碳原子的脂族酰基的N-长链单酰化碱性氨基酸的表面，或包含至少一种所述N-长链单酰化碱性氨基酸 ，并且具有改善的表面滑动特性，例如通过组织的能力和粘合性能。
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8.发明授权Method for preparing 1,3-dihydroxy-4,6-bis(.alpha.-methyl-.alpha.(4'-hydroxyphenyl)ethyl)benz ene 失效制备1,3-二羟基-4,6-双（α-甲基-α（4'-羟基苯基）乙基）苯的方法
公开(公告)号：US5744653A
公开(公告)日：1998-04-28
申请号：US699190
申请日：1996-08-19
申请人： Mizuo Ito , Shigeru Iimuro
发明人： Mizuo Ito , Shigeru Iimuro
IPC分类号： B01J27/08 , B01J27/10 , B01J27/24 , C07B61/00 , C07C37/14 , C07C39/15 , C08G59/32 , C08G59/62 , C08G63/133 , C08G63/20 , C08G64/14 , C07C39/12
CPC分类号： C08G63/133 , C07C37/14 , C08G59/3218 , C08G59/621 , C08G63/20 , C08G64/14
摘要： A method for preparing 1,3-dihydroxy-4,6-bis�.alpha.-methyl-.alpha.-.alpha.(4'-hydroxyphenyl)ethyl!benzene represented by the following formula (1): ##STR1## comprising the step of initiating a reaction of resorcin with 4-isopropenylphenol in a mixed solvent which comprises a non-polar solvent and a polar solvent in the presence of an acidic catalyst. The method can easily be handled, ensures a high yield, permits the reduction of impurity content and can provide highly pure 1,3-dihydroxy-4,6-bis�.alpha.-methyl-.alpha.-(4'-hydroxyphenyl)ethyl!benzene. The resulting phenolic compound is useful as, for instance, a branching agent for polycarbonates, polyesters or the like; a raw material for radiant ray-sensitive components for use as resist materials; a raw material for epoxy resins; and a hardening agent for epoxy resins.
摘要翻译： 由下式（1）表示的1,3-二羟基-4,6-双[α-甲基-α-α（4'-羟基苯基）乙基]苯的制备方法：间苯二酚与4-异丙烯基苯酚的反应 在酸性催化剂存在下包含非极性溶剂和极性溶剂的混合溶剂。 该方法可以容易地处理，确保高产率，允许杂质含量的降低，并且可以提供高纯度的1,3-二羟基-4,6-双[α-甲基-α-（4'-羟基苯基）乙基]苯 。 所得的酚类化合物可用作例如聚碳酸酯，聚酯等的支化剂; 用作抗蚀材料的辐射敏感元件的原料; 环氧树脂原料; 和环氧树脂用硬化剂。
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9.发明授权
公开(公告)号：US5395915A
公开(公告)日：1995-03-07
申请号：US104920
申请日：1993-08-12
申请人： Shigeru Iimuro , Satoru Ito , Tomoko Takashima , Takashi Kitamura
发明人： Shigeru Iimuro , Satoru Ito , Tomoko Takashima , Takashi Kitamura
摘要： Herein disclosed is a method for simultaneously preparing a highly pure bisphenol F and/or a bisphenol F for general use and a novolak phenol resin and/or a high molecular weight novolak phenol resin comprising the steps of:(1) a preparation step comprising reacting phenol with formaldehyde in the presence of an acid catalyst and removing the acid catalyst, water and the unreacted phenol from the resulting reaction product to give a crude bisphenol F;(2) a distillation step comprising distilling a part of the crude bisphenol F to give a highly pure bisphenol F, as a distillate, having a binuclear moiety-content of not less than 95% by weight and a novolak phenol resin, as a still-bottom product, having a binuclear moiety-content of not more than 15% by area;(3) a step for mixing the highly pure bisphenol F with the remaining crude bisphenol F to give a bisphenol F for general use; and(4) a step for polymerizing the novolak phenol resin with formaldehyde in the presence of an acid catalyst to give a high molecular weight novolak phenol resin.
摘要翻译： 本文公开了一种用于同时制备用于一般用途的高纯度双酚F和/或双酚F和酚醛清漆酚醛树脂和/或高分子量酚醛清漆酚树脂的方法，包括以下步骤：（1）制备步骤，包括使 苯酚与甲酸在酸催化剂存在下，从所得反应产物中除去酸催化剂，水和未反应的苯酚，得到粗双酚F; （2）蒸馏步骤，包括蒸馏粗双酚F的一部分，得到作为蒸馏物的高纯度双酚F，双核部分含量不小于95重量％，酚醛清漆酚树脂作为静止物 双产物，双核部分含量不超过面积的15％; （3）将高纯度双酚F与剩余的粗双酚F混合以得到通常使用的双酚F的步骤; 和（4）在酸催化剂存在下使酚醛清漆酚醛树脂与甲醛聚合的步骤，得到高分子量酚醛清漆酚醛树脂。
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公开(公告)号：US4950804A
公开(公告)日：1990-08-21
申请号：US310350
申请日：1989-02-14
摘要： A process for producing high-purity bisphenol A comprises reacting phenol with acetone in the presence of hydrochloric acid as the catalyst to obtain a product mixture, removing the hydrochloric acid from the product mixture, thereby yielding a liquid mixture, adding water to the liquid mixture, evaporating a water-phenol mixture from the liquid mixture under reduced pressure, thereby cooling the liquid mixture and crystallizing out the adduct of bisphenol A with phenol, and finally recovering bisphenol A from the adduct, wherein an improvement comprises treating the water-phenol mixture with a weakly basic ion-exchange resin and recycling and reusing the treated mixture as the water to be added to the liquid mixture. This process does not causes any troubles such as the corrosion of equipment and the decomposition and discoloration of bisphenol A during distillation.
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