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1. 发明授权

US4165411A Flame retardant urethane and method 失效
标题翻译：阻燃聚氨酯和方法
公开(公告)号：US4165411A
公开(公告)日：1979-08-21
申请号：US834927
申请日：1977-09-20
申请人： Nelson S. Marans , Clifton L. Kehr , Robert M. Murch
发明人： Nelson S. Marans , Clifton L. Kehr , Robert M. Murch
IPC分类号： C08G18/48 , C08J9/00 , C08K5/52 , C08K5/51 , C08K5/53
CPC分类号： C08J9/0066 , C08G18/4833 , C08J9/0038 , C08J2375/00
摘要： The invention disclosed relates to a new polyurethane composition having improved flame retardance and to a method for preparing same. The present composition includes a hydrophilic polyurethane having alumina hydrate and a phosphorus containing compound disposed therein.
摘要翻译：所公开的发明涉及具有改进的阻燃性的新型聚氨酯组合物及其制备方法。本发明的组合物包括其中设置有水合氧化铝和含磷化合物的亲水性聚氨酯。

2. 发明授权

US3959191A Novel hydrophobic polyurethane foams 失效
标题翻译：新型疏水性聚氨酯泡沫
公开(公告)号：US3959191A
公开(公告)日：1976-05-25
申请号：US537617
申请日：1974-12-30
申请人： Clifton L. Kehr , Nelson S. Marans
发明人： Clifton L. Kehr , Nelson S. Marans
IPC分类号： C08J9/02 , C08G18/10 , C08G18/14
CPC分类号： C08J9/02 , C08J2375/00 , Y10S521/905 , Y10T428/23979 , Y10T428/249953
摘要： The invention disclosed is for new improved hydrophobic polyurethane foams prepared by reacting a hydrophobic polyisocyanate reactant with large amounts of an aqueous reactant in the presence of an emulsifying agent. The resultant foams may be characterized with a broad spectrum of improved properties including load-bearing characteristics, hydrophobic properties, textural characteristics and the like.
摘要翻译：本发明公开了用于通过在乳化剂存在下使疏水性多异氰酸酯反应物与大量水性反应物反应制备的改进的疏水性聚氨酯泡沫。所得泡沫体可以具有广谱的改进性能，包括承载特性，疏水性质，织构特征等。

3. 发明授权

US4403083A Preparation of solid polyurethane particles 失效
标题翻译：固体聚氨酯颗粒的制备
公开(公告)号：US4403083A
公开(公告)日：1983-09-06
申请号：US413294
申请日：1982-08-31
申请人： Nelson S. Marans , Clifton L. Kehr
发明人： Nelson S. Marans , Clifton L. Kehr
IPC分类号： C08G18/08 , C08G18/10 , C08G18/12 , C08G18/48
CPC分类号： C08G18/4833 , C08G18/0866 , C08G18/10 , C08G18/12 , C08G2140/00 , C08G2150/20 , C08G2170/20 , C08G2190/00 , Y10S528/902 , Y10S528/904
摘要： This invention relates to novel hydrophilic, crosslinked, polyurea-urethane, solid, discrete particles formed by adding in droplet form a hydrophilic prepolymer comprising an isocyanate-capped polyol or mixtures thereof wherein said polyol or mixture of polyols has a reaction functionality greater than two, the total of said polyol present having an ethylene oxide content of at least 40 weight percent, before capping to a large excess of a stirred aqueous reactant. The resultant solid particles can be molded into various shapes as desired or used for coating or adhesive applications.
摘要翻译：本发明涉及通过在液滴中形成包含异氰酸酯封端的多元醇或其混合物的亲水预聚物形成的新的亲水交联的聚脲 - 氨基甲酸酯，固体，离散颗粒，其中所述多元醇或多元醇混合物的反应官能度大于2，存在的环氧乙烷含量为至少40重量％的所述多元醇的总量，在加盖到大量过量的搅拌的水性反应物之前。所得的固体颗粒可以根据需要模制成各种形状或用于涂布或粘合剂应用。

4. 发明授权

US4510097A Hindered aliphatic monoisocyanates 失效
标题翻译：受阻脂肪族单异氰酸酯
公开(公告)号：US4510097A
公开(公告)日：1985-04-09
申请号：US962543
申请日：1978-11-20
申请人： Clifton L. Kehr , Walter R. Wszolek , Nelson S. Marans
发明人： Clifton L. Kehr , Walter R. Wszolek , Nelson S. Marans
IPC分类号： C08G18/08 , C08G18/71 , C07C119/045
CPC分类号： C08G18/14 , C08G18/71
摘要： This invention relates to novel hindered cycloaliphatic monoisocyanates of the general formula: ##STR1## wherein R.sub.1 -R.sub.7 are members of the group consisting of H, alkyl, cycloalkyl, aryl, alkaryl, aralkyl or mixtures thereof wherein the alkyl groups contain 1-18 carbon atoms, the cycloalkyl groups contain 4-8 carbon atoms and the aryl groups contain 6-14 carbon atoms with the proviso that where R.sub.3 is a group member other than H, R.sub.1, R.sub.2, R.sub.4 and R.sub.5 can be H and with the further proviso that where R.sub.3 is H at least two of R.sub.1, R.sub.2, R.sub.4 and R.sub.5 are group members other than H and x is 1 to 7. Other novel dihindered intermediate compositions include aliphatic monoamines.
摘要翻译：本发明涉及以下通式的新的受阻环脂族单异氰酸酯：其中R 1 -R 7是由H，烷基，环烷基，芳基，烷芳基，芳烷基或其混合物组成的组的成员，其中烷基含有1-18个碳原子，环烷基含有4-8个碳原子，芳基含有6-14个碳原子，条件是其中R 3是不同于H的基团，R 1，R 2，R 4和R 5可以是H，进一步的条件是其中R 3为H时，R 1，R 2，R 4和R 5中的至少两个为H以外的基团，X为1至7.其它新的二元中间体组合物包括脂族单胺。

5. 发明授权

US4201846A Dimensionally stable polyurethane foam 失效
标题翻译：尺寸稳定的聚氨酯泡沫
公开(公告)号：US4201846A
公开(公告)日：1980-05-06
申请号：US963600
申请日：1978-11-24
申请人： Clifton L. Kehr , Louis L. Wood , Nelson S. Marans , Glenn E. Fulmer
发明人： Clifton L. Kehr , Louis L. Wood , Nelson S. Marans , Glenn E. Fulmer
IPC分类号： C08G18/10 , C08G18/62 , C08J9/00 , C08G18/14
CPC分类号： C08J9/0085 , C08G18/10 , C08G18/6212 , C08G2101/0083 , C08J2375/04 , Y10S521/905
摘要： The invention disclosed relates to hydrophilic polyurethane foam which exhibits improved tensile and tear properties and reduced shrinkage upon drying as a result of incorporation of substantially hydrophilic reinforcing fibers formed from homopolymers and copolymers of polyvinyl alcohol. The reinforced foams also exhibit reduced swelling upon contact with water.
摘要翻译：所公开的本发明涉及亲水性聚氨酯泡沫，其表现出改善的拉伸和撕裂性能，并且由于掺入由聚乙烯醇的均聚物和共聚物形成的基本上亲水的增强纤维，干燥时收缩率降低。增强的泡沫体在与水接触时也表现出减少的膨胀。

6. 发明授权

US4886866A Contact lenses based on biocompatible polyurethane and polyurea-urethane hydrated polymers 失效
标题翻译：基于生物相容性聚氨酯和聚脲 - 氨基甲酸酯水合聚合物的隐形眼镜
公开(公告)号：US4886866A
公开(公告)日：1989-12-12
申请号：US312331
申请日：1989-02-16
申请人： James A. Braatz , Clifton L. Kehr
发明人： James A. Braatz , Clifton L. Kehr
IPC分类号： C08G18/10 , C08G18/48 , G02B1/04
CPC分类号： C08G18/4837 , C08G18/10 , C08G18/4833 , G02B1/043 , C08G2210/00 , Y10S528/904
摘要： Hydrophilic polymeric soft contact lenses which are characterized by their biocompatibility and resistance to nonspecific protein adsorption. At least 75%, preferably at least 80%, of the prepolymers from which the lenses are prepared are isocyanate-capped oxyethylene-based diols or polyols having molecular weight of about 7000-30,000. Essentially all of the hydroxyl groups of the diols or polyols are capped with polyisocyanate prior to formation of the hydrated polymer of which the contact lenses are made.
摘要翻译：亲水性聚合物软性隐形眼镜，其特征在于它们的生物相容性和对非特异性蛋白质吸附的抗性。制备透镜的预聚物的至少75％，优选至少80％是分子量约为7000-3000的异氰酸酯封端的氧化乙烯基二醇或多元醇。在形成隐形眼镜的水合聚合物形成之前，二醇或多元醇的基本上所有羟基被多异氰酸酯封端。

7. 发明授权

US5296518A Hydrophilic polyurethaneurea foams containing no toxic leachable additives and method to produce such foams 失效
标题翻译：不含有毒的可浸出添加剂的亲水性聚氨酯脲泡沫体以及生产这种泡沫的方法
公开(公告)号：US5296518A
公开(公告)日：1994-03-22
申请号：US809363
申请日：1991-12-18
申请人： Timothy G. Grasel , Clifford A. Ferrin , James L. Guthrie , Clifton L. Kehr
发明人： Timothy G. Grasel , Clifford A. Ferrin , James L. Guthrie , Clifton L. Kehr
IPC分类号： A01K97/04 , A61L31/06 , C08G18/32 , C08G18/42 , C08G18/48 , C08G18/00
CPC分类号： A01K97/045 , A61L31/06 , C08G18/3221 , C08G18/4283 , C08G18/4286 , C08G18/4887 , C08G2101/0083 , C08G2220/00 , C08G2230/00
摘要： Hydrophilic polyurethane urea foams which are made without toxic, leachable additives are disclosed. High molecular weight, isocyanate-terminated, ethylene oxide-rich prepolymers are used in place of surfactants to make the foams.
摘要翻译：公开了没有有毒的可浸出添加剂制成的亲水性聚氨酯脲泡沫。使用高分子量，异氰酸酯封端的富环氧乙烷预聚物代替表面活性剂以制备泡沫体。

8. 发明授权

US5462536A Protein nonadsorptive membranes for wound dressings 失效
标题翻译：用于伤口敷料的蛋白质非吸光膜
公开(公告)号：US5462536A
公开(公告)日：1995-10-31
申请号：US91532
申请日：1993-07-14
申请人： James A. Braatz , Clifton L. Kehr , Timothy G. Grasel , William S. Letter
发明人： James A. Braatz , Clifton L. Kehr , Timothy G. Grasel , William S. Letter
IPC分类号： A61L15/26 , A61F13/00 , A61F13/02
CPC分类号： A61L15/26
摘要： Controlled release membranes are prepared from polyureaurethane polymer derived from prepolymer units at least 75% of which are oxyethylene-based diols or polyols having essentially all of the hydroxyl groups capped with polyisocyanate are disclosed. The membranes are characterized by their biocompatibility and resistance to nonspecific protein adsorption and are particuarly useful for delivery of proteinaceous materials in drug-delivery systems, i.e., wound dressings. Also disclosed are novel biocompatible, protein-nonadsorptive hydrated polymers and the method of producing the same.
摘要翻译：公开了控制释放膜，其由衍生自预聚物单元的聚脲聚氨酯聚合物制备，其中至少75％是基于氧化乙烯的二醇或基本上具有用多异氰酸酯封端的羟基的多元醇。膜的特征在于它们的生物相容性和对非特异性蛋白质吸附的抗性，并且对于在药物递送系统（即伤口敷料）中递送蛋白质材料是特别有用的。还公开了新的生物相容性，蛋白质 - 非吸收性水合聚合物及其制备方法。

9. 发明授权

US5270044A Degradable articles and methods of using such articles as degradable bait 失效
标题翻译：可降解的物品和使用这些物品的方法可降解诱饵
公开(公告)号：US5270044A
公开(公告)日：1993-12-14
申请号：US764589
申请日：1991-09-24
申请人： Glenn E. Fulmer , Narender P. Luthra , Clifton L. Kehr , Darwin S. Bull , James L. Guthrie
发明人： Glenn E. Fulmer , Narender P. Luthra , Clifton L. Kehr , Darwin S. Bull , James L. Guthrie
IPC分类号： A01K97/04 , A61L31/06 , C08G18/32 , C08G18/42 , C08G18/48 , A01N25/08
CPC分类号： C08G18/4887 , A01K97/045 , A61L31/06 , C08G18/3221 , C08G18/4283 , C08G18/4286 , C08G2101/0083 , C08G2220/00 , C08G2230/00
摘要： A degradable article comprising a polyurethane polymer gel or foam whose polymer structure contains hydrolytically unstable ester linkages and various additives. The article can be constructed so that some of the additives are released from the article at a sustained rate. In a preferred embodiment the additives are sensory stimulants for marine or aquatic organisms and the article is used as bait for those organisms. Such sensory stimulants can include high molecular weight thickeners, to impart a slippery texture.
摘要翻译：包含聚氨酯聚合物凝胶或泡沫的可降解物品，其聚合物结构含有水解不稳定的酯键和各种添加剂。可以构造制品，使得一些添加剂以持续的速度从制品中释放出来。在优选的实施方案中，添加剂是用于海洋或水生生物的感官刺激剂，并且该物品用作这些生物的诱饵。这种感觉兴奋剂可以包括高分子量增稠剂，以赋予光滑的质感。

10. 发明授权

US5175229A Biocompatible polyurea-urethane hydrated polymers 失效
标题翻译：生物相容性聚脲 - 氨基甲酸酯水合聚合物
公开(公告)号：US5175229A
公开(公告)日：1992-12-29
申请号：US725699
申请日：1991-07-03
申请人： James A. Braatz , Clifton L. Kehr
发明人： James A. Braatz , Clifton L. Kehr
IPC分类号： C08G18/10 , C08G18/48
CPC分类号： C08G18/4833 , C08G18/10 , C08G2210/00 , Y10T428/31551
摘要： A class of hydrophilic prepolymers and hydrated polymer gels are disclosed which are characterized by their transparency, biocompatibility and resistance to nonspecific protein adsorption. At least 75%, preferably at least 90%, of the prepolymers are isocyanate-capped oxyethylene-based diols or polyols having molecular weight of about 7000-30,000. Essentially all of the hydroxyl groups of the diols or polyols are capped with polyisocyanate prior to formation of the hydrated polymer.
摘要翻译：公开了一类亲水预聚物和水合聚合物凝胶，其特征在于它们的透明性，生物相容性和对非特异性蛋白质吸附的抗性。至少75％，优选至少90％的预聚物是分子量约为7000-30,000的异氰酸酯封端的氧化乙烯基二醇或多元醇。在形成水合聚合物之前，基本上二醇或多元醇的所有羟基被多异氰酸酯封端。

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