专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06858680B2 Shape memory polyurethane or polyurethane-urea polymers 失效
标题翻译：形状记忆聚氨酯或聚氨酯 - 脲聚合物
公开(公告)号：US06858680B2
公开(公告)日：2005-02-22
申请号：US10054742
申请日：2002-01-22
申请人： Pathiraja A. Gunatillake , Simon J. McCarthy , Gordon F. Meijs , Raju Adhikari
发明人： Pathiraja A. Gunatillake , Simon J. McCarthy , Gordon F. Meijs , Raju Adhikari
IPC分类号： A61L27/00 , A61L27/18 , A61L27/26 , A61L27/50 , A61L29/04 , A61L29/06 , A61L29/14 , A61L31/00 , A61L31/04 , A61L31/06 , A61L31/14 , C08G18/38 , C08G18/48 , C08G18/61 , C08G18/66 , C08J5/00 , C08L75/00 , C08L75/04 , C08L101/00 , C08G77/38
CPC分类号： C08G18/6674 , A61L27/18 , A61L27/26 , A61L27/50 , A61L29/049 , A61L29/06 , A61L29/14 , A61L31/041 , A61L31/06 , A61L31/14 , A61L2400/16 , C08G18/3893 , C08G18/4858 , C08G18/61 , C08G2280/00 , C08L75/04 , Y10S525/937 , C08L75/02 , C08L83/04
摘要： A shape memory polyurethane or polyurethane-urea polymer including a reaction product of: (A) (a) silicon-based macrodiol, silicon-based macrodiamine and/or polyether of the formula (I): A—[(CH2)m—O]n—(CH2)m—A′, wherein A and A are endcapping groups; m is an integer of 6 or more; and n is an integer of 1 or greater; (b) a diisocyanate; and (c) a chain extender; or (B) (b) a diisocyanate: and (c) a chain extender, said polymer having a glass transition temperature which enables the polymer to be formed into a first shape at a temperature higher than the glass transition temperature and maintained in said first shape when the polymer is cooled to a temperature lower than the glass transition temperature, said polymer then being capable of resuming its original shape on heating to a temperature higher than the glass transition temperature. The present invention also relates to a shape memory composition which includes a blend of two or more of the shape memory polyurethane or polyurethane-urea polymers defined above or at least one shape memory polyurethane or polyurethane-urea polymer defined above in combination with another material. The present invention further relates to processes for preparing materials having improved mechanical properties, clarity, processability, biostability and/or degradation resistance and devices or articles containing the shape memory polyurethane or polyurethane-urea polymer and/or composition defined above.
摘要翻译：一种形状记忆聚氨酯或聚氨酯 - 脲聚合物，其包括以下反应产物：（A）（a）硅基大分子二醇，硅基大二胺和/或式（I）的聚醚：A - [（CH 2）m O] n - （CH 2）m -A'，其中A和A'是封端基团; m为6以上的整数， n为1以上的整数，（b）二异氰酸酯; 和（c）扩链剂; 或（B）（b）二异氰酸酯和（c）扩链剂，所述聚合物具有玻璃化转变温度，使聚合物能够在高于玻璃化转变温度的温度下形成第一形状，并保持在所述第一当聚合物冷却至低于玻璃化转变温度的温度时，所述聚合物在加热至高于玻璃化转变温度的温度时能够恢复其原始形状。本发明还涉及一种形状记忆组合物，其包括两种或更多种上述定义的形状记忆聚氨酯或聚氨酯 - 脲聚合物或至少一种形状记忆聚氨酯或聚氨酯 - 脲聚合物与另一种材料组合的共混物。本发明还涉及制备具有改进的机械性能，透明度，可加工性，生物稳定性和/或耐降解性的材料的方法以及含有上述定形形状记忆聚氨酯或聚氨酯 - 脲聚合物和/或组合物的装置或制品。

2. 发明授权

US5403912A Process for the production of poly(alkylene oxide) 失效
标题翻译：生产聚（环氧烷）的方法
公开(公告)号：US5403912A
公开(公告)日：1995-04-04
申请号：US66072
申请日：1993-06-21
申请人： Pathiraja A. Gunatillake , Gordon F. Meijs , Ezio Rizzardo
发明人： Pathiraja A. Gunatillake , Gordon F. Meijs , Ezio Rizzardo
IPC分类号： C08G18/48 , C08G65/34
CPC分类号： C08G18/48 , C08G65/34
摘要： A process for the production of poly(alkylene oxide) which includes providing a polyhydroxy compound or compounds and an acid resin catalyst or a salt thereof that has been converted to the acid form; and reacting said polyhydroxy compound or compounds in the presence of said acid resin catalyst at a temperature and under conditions to allow polymerization.
摘要翻译： PCT No.PCT / AU91 / 00545 Sec。 371日期：1993年6月21日 102（e）日期1993年6月21日PCT 1991年11月26日PCT公布。公开号WO92 / 09647 日本1992年6月11日。一种生产聚（环氧烷）的方法，其包括提供已转化为酸形式的多羟基化合物或其酸化树脂催化剂或其盐; 并在所述酸性树脂催化剂存在下，在温度和条件下使所述多羟基化合物或化合物反应以进行聚合。

3. 发明授权

US5393858A Polyurethane or polyurethane-urea elastomeric compositions 失效
标题翻译：聚氨酯或聚氨酯 - 脲弹性体组合物
公开(公告)号：US5393858A
公开(公告)日：1995-02-28
申请号：US962799
申请日：1993-02-23
申请人： Gordon F. Meijs , Ezio Rizzardo , Arthur Brandwood , Pathiraja Gunatillake , Klaus H. Schindhelm
发明人： Gordon F. Meijs , Ezio Rizzardo , Arthur Brandwood , Pathiraja Gunatillake , Klaus H. Schindhelm
IPC分类号： A61L27/00 , A61L17/04 , A61L27/18 , A61L29/00 , A61L29/06 , A61L31/00 , C08G18/10 , C08G18/48 , C08G18/65 , C08G18/66 , C08G18/76 , C08G18/30
CPC分类号： C08G18/765 , A61L17/04 , A61L27/18 , A61L29/06 , C08G18/10 , C08G18/4858
摘要： A polyurethane or polyurethane-urea elastomeric composition, characterized in that the composition is a reaction product of:(A) a soft segment macrodiol which is either:(i) a homopolymer represented by formula I,HO--[(CH.sub.2).sub.n O].sub.m --H Iwherein n represents an integer greater than 5 and less than 13, m is a number such that the number average molecular weight of the compound of formula I falls in the range from 218 to 5000 and optionally at least one hydrogen atom represented in formula I is substituted by a C.sub.1 to C.sub.3 alkyl group or a halogen atom;(ii) a copolymer containing at least 25% by mass of repeating units --(CH.sub.2).sub.n O-- wherein n is as defined in formula I above; or(iii) mixture of macrodiols comprising greater than 10% of a macrodiol as defined in formula I above;(B ) an aliphatic or aromatic diisocyanate known in the art of polyurethane manufacture; and(C) optionally a chain extender.A biomaterial and a medical device which are composed wholly or partly of the polyurethane or polyurethane-urea elastomeric composition are also described.
摘要翻译： PCT No.PCT / AU91 / 00270 Sec。 371日期：1993年2月23日 102（e）1993年2月23日PCT PCT 1991年6月26日PCT公布。出版物WO92 / 日本1992年1月9日。一种聚氨酯或聚氨酯 - 脲弹性体组合物，其特征在于所述组合物是以下物质的反应产物：（A）软段大分子二醇，其为：（i）由式I表示的均聚物，HO- [（CH 2）n O] m-HI其中n表示大于5且小于13的整数，m是使式I化合物的数均分子量在218至5000的范围内的数，式I中表示的至少一个氢原子被C1至C3烷基或卤素原子取代; （ii）含有至少25质量％的重复单元 - （CH 2）n O-的共聚物，其中n如上述式I中所定义; 或（iii）包含大于10％上述式I定义的大分子二醇的大分子二醇的混合物; （B）聚氨酯制造领域已知的脂族或芳族二异氰酸酯; 和（C）任选的扩链剂。还描述了全部或部分由聚氨酯或聚氨酯 - 脲弹性体组合物组成的生物材料和医疗装置。

4. 发明授权

US5385996A Control of molecular weight and end-group functionality of polymers 失效
标题翻译：控制聚合物的分子量和端基官能度
公开(公告)号：US5385996A
公开(公告)日：1995-01-31
申请号：US72687
申请日：1993-06-07
申请人： Ezio Rizzardo , Gordon F. Meijs , San H. Thang
发明人： Ezio Rizzardo , Gordon F. Meijs , San H. Thang
IPC分类号： C07C43/176 , C07C43/178 , C07C43/215 , C07C323/25 , C07F7/18 , C07F9/40 , C08F2/38 , C08F246/00
CPC分类号： C07C323/60 , C07C255/00 , C07C321/00 , C07C323/00 , C07C323/25 , C07C43/176 , C07C43/1787 , C07C43/215 , C07F7/1852 , C07F9/4015 , C08F246/00
摘要： A process for the production of polymers by free radical polymerization, characterized in that there is added to the polymerization system one or more compounds of the general formula (A). ##STR1## where R.sup.1 is hydrogen or a group capable activating the vinylic carbon towards free radical addition;Y is OR.sup.2 or CH.sub.2 X(R.sup.2).sub.nwhere R.sup.2 is an optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted saturated, unsaturated or aromatic, aromatic carbocyclic or heterocyclic ring;X is an element other than carbon selected from Groups IV, V, VI or VII of the Periodic Table or a group consisting of an element selected from Groups IV, V, or VI to which is attached one or more oxygen atoms; andn is a number from 0 to 3, such that the valency of the group X is satisfied and, when n is greater than 1, the groups represented by R.sup.2 may be identical or different.
摘要翻译：通过自由基聚合制备聚合物的方法，其特征在于向聚合体系中加入一种或多种通式（A）的化合物。（A）其中R1是氢或能够将乙烯基碳活化成自由基添加的基团; Y是OR2或CH2X（R2）n，其中R2是任选取代的烷基，任选取代的烯基，任选取代的炔基或任选取代的饱和，不饱和或芳族芳族碳环或杂环; X是除了选自元素周期表第Ⅳ，Ⅴ，Ⅵ或Ⅶ族的碳以外的元素，或由选自附有一个或多个氧原子的第Ⅳ，Ⅴ或Ⅵ族元素组成的组元素; 并且n为0至3的数，使得满足基团X的化合价，并且当n大于1时，由R 2表示的基团可以相同或不同。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式