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61.发明公开
公开(公告)号：KR1020020054061A
公开(公告)日：2002-07-06
申请号：KR1020000082684
申请日：2000-12-27
Applicant: 한국과학기술연구원
IPC: A61L27/56
Abstract: PURPOSE: A porous supporter for tissue engineering obtained from a copolymer of biodegradable glycolide/ε-caprolactone having excellent mechanical properties such as flexibility and elasticity and biodegradability is provided which can be effectively used as material for regenerating tissue of desired shapes. CONSTITUTION: This porous supporter is prepared from a biodegradable glycolide/ε -caprolactone copolymer having a recurring unit of formula 1 and a weight average molecular weight of 10,000. In formula, x and y are each 18 or more. The porous supporter has a pore size of 1 to 800 microns and a porosity of 50 to 99%.
Abstract translation: 目的：提供一种用于组织工程的多孔支持体，其由具有优异的机械性能如柔韧性和弹性和生物降解性的可生物降解的乙交酯/ε-己内酯的共聚物获得，其可以有效地用作用于再生所需形状的组织的材料。 构成：该多孔载体由具有式1的重复单元和重均分子量为10,000的可生物降解的乙交酯/ε-己内酯共聚物制备。 在式中，x和y分别为18以上。 多孔载体的孔径为1至800微米，孔隙率为50至99％。
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公开(公告)号：KR1020010036366A
公开(公告)日：2001-05-07
申请号：KR1019990043342
申请日：1999-10-08
Applicant: 한국과학기술연구원 , 주식회사 삼양홀딩스
IPC: C08F222/10
Abstract: PURPOSE: A star-shaped glycolide/epsilon-caprolactone co-polymer and a preparation method thereof are provided, which has a weight average molecular weight over 30,000 and a low melting viscosity. CONSTITUTION: A preparation method of star-shaped biodegradable glycolide/epsilon-caprolactone co-polymer of formula 1 comprises: in the presence of ring-opening polymerization catalyst of glycolide/epsilon-caprolactone, performing a ring-opening polymerization by heating glycolide and epsilon-caprolactone through using polyhydric alcohol as polymerization initiator under vacuum pressure. The polyhydric alcohol is selected from the group of glycerol, penta-erythritol, di-penta-erythritol, tri-penta-erythritol, sorbitol, poly-vinyl alcohol, poly-hydroxy ethyl methacrylate, and poly-hydroxy propyl methacrylate. The catalyst is selected from the group of tetra-phenyl tin, tin powder, stannous octoate, tin chloride, tin oxide, zinc powder, di-ethyl zinc octoate, zinc chloride, and zinc oxide.
Abstract translation: 目的：提供一种星形乙交酯/ε-己内酯共聚物及其制备方法，其重均分子量超过30,000，熔点低。 构成：式1的星形生物可降解乙交酯/ε-己内酯共聚物的制备方法包括：在乙交酯/ε-己内酯的开环聚合催化剂存在下，通过加热乙交酯和ε进行开环聚合 通过在真空压力下使用多元醇作为聚合引发剂。 多元醇选自甘油，季戊四醇，二季戊四醇，三季戊四醇，山梨糖醇，聚乙烯醇，甲基丙烯酸聚羟基乙酯，甲基丙烯酸聚羟基丙酯等。 催化剂选自四苯基锡，锡粉，辛酸亚锡，氯化锡，氧化锡，锌粉，二乙基辛酸锌，氯化锌和氧化锌。
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公开(公告)号：KR100153175B1
公开(公告)日：1998-12-01
申请号：KR1019950029615
申请日：1995-09-12
Applicant: 한국과학기술연구원
IPC: C07C317/22
Abstract: 본 발명은 치과용 재료로서 사용되는 하기 일반식(I)의 화합물을 제공한다.
식 중, R
1 , R
2 , R
3 및 R
4 는 각각 독립적으로 -OH, -OCOCH=CH
2 , 또는 -OCOCCH
3 =CH
2 이다. 다만, R
1 및 R
2 중 적어도 하나는 -OH가 아니고, 동시에 R
3 및 R
4 중 적어도 하나는 -OH가 아니다.-
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Patent Agency Ranking
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公开(公告)号：KR1019930006259B1
公开(公告)日：1993-07-09
申请号：KR1019900001238
申请日：1990-02-02
Applicant: 한국과학기술연구원
IPC: C08G75/20
CPC classification number: C08G75/23 , C08G65/4012 , C08L2205/05
Abstract: The polymer having a repeating unit of formula (I) is prepared by condensation reacting aromatic dihalogen compound (A) of formula (II) and aromatic diol (B) of formula (III) in the presence of alkali metal salt at 140-250 deg.C for 1-12 hr. In formulae, Ar is phenylene, biphenylene, etc., X is chlorine and M is alkali metal, compound (A) is 4-fluoro-4'-(4-fluorobenzoyl phenyloxy)diphenylsulfone and compound (B) is selected from 2,2-bis- (4-hydroxyphenyl)propane, hydroquinone or 4,4'-biphenol. The alkali metal salt is potassium carbonate and its addition amount is 1.0-20 wt.% w.r.t. aromatic diol.
Abstract translation: 具有式（I）的重复单元的聚合物通过在140-250度的碱金属盐存在下使式（II）的芳族二卤化合物（A）和式（III）的芳族二醇（B） C 1〜12小时。 式中，Ar为亚苯基，亚联苯等，X为氯，M为碱金属，化合物（A）为4-氟-4' - （4-氟苯甲酰苯氧基）二苯砜，化合物（B） 丙二醇，对苯二酚或4,4'-联苯酚。 碱金属盐是碳酸钾，其添加量为1.0-20重量％w.r.t. 芳族二醇。
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公开(公告)号：KR1019920000785B1
公开(公告)日：1992-01-23
申请号：KR1019870014654
申请日：1987-12-21
Applicant: 한국과학기술연구원
IPC: C08F20/06
Abstract: The acrylic acid alkali metal salt resin is prepd. by steps: (A) polymerising acrylic acid and acrylic acid alkali metal salt in presence of crosslinking agent and radical polymerising initiator in alicyclic hydrocarbon org. solvent; (B) after-polymerising the carboxyl gp. of the obtd. polymer with water soluble diglycidyl ether; (C) adding low molecular water soluble polymer selected from polyehylene glycol or hydroxyethyl cellulose. The sametimely crosslinking agent is selected from diacrylate, triacrylate, polyethyleneglycol di(meth)acrylate or alkylenebisacryl amide of polyol having more two polymerisable functional gp.. The solvent contains 3-6 HLB surfactant and 8-15 HLB surfactant.
Abstract translation: 制备丙烯酸碱金属盐树脂。 步骤：（A）丙烯酸和丙烯酸碱金属盐在交联剂和自由基聚合引发剂存在下在脂环族烃组分中聚合。 溶剂; （B）羧基gp的后聚合。 的obtd。 聚合物与水溶性二缩水甘油醚; （C）加入选自聚乙二醇或羟乙基纤维素的低分子水溶性聚合物。 同时交联剂选自二丙烯酸酯，三丙烯酸酯，聚乙二醇二（甲基）丙烯酸酯或具有更多两个可聚合官能团的多元醇的亚烷基双丙烯酰胺。该溶剂含有3-6个HLB表面活性剂和8-15个HLB表面活性剂。
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