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1. 发明授权

US5514734A Polymer nanocomposites comprising a polymer and an exfoliated particulate material derivatized with organo silanes, organo titanates, and organo zirconates dispersed therein and process of preparing same 失效
标题翻译：包含聚合物的聚合物纳米复合材料和分散在其中的有机硅烷，有机钛酸酯和有机锆酸酯衍生的剥离的颗粒材料及其制备方法
公开(公告)号：US5514734A
公开(公告)日：1996-05-07
申请号：US500026
申请日：1995-07-10
申请人： MacRae Maxfield , Brian R. Christiani , Vinod R. Sastri
发明人： MacRae Maxfield , Brian R. Christiani , Vinod R. Sastri
IPC分类号： C08K7/02 , C08K7/10 , C08K9/02
CPC分类号： C08K7/02 , C08K7/10
摘要： This invention relates to a process of forming a composite material comprising a polymer matrix comprising a polymeric material and dispersed particles selected from the group consisting of platelet or fibrillar particles having average thicknesses of less than 50 and a maximum thickness of less than about 100 and fibrils having an average diameter equal to or less than about 200 and a maximum diameter of about 200 and having an organo metallic residue species covalently to said particles organo metallic species having a moiety which is compatible with a polymer species in the polymer matrix, or said species having a moiety which is covalently bonded to a polymer species in the polymer matrix or a combination thereof, said dispersed particles being present in an amount less than about 60% by weight of the composite material and to the composite material formed by such process
摘要翻译：本发明涉及形成复合材料的方法，该复合材料包括聚合物基质，其包含聚合物材料和选自平均厚度小于50且最小厚度小于约100的血小板或纤维状颗粒的分散颗粒，以及原纤维具有等于或小于约200的平均直径和约200的最大直径，并且具有与所述颗粒共价的有机金属残留物，所述有机金属物质具有与聚合物基质中的聚合物物质相容的部分的有机金属物质，或所述物质具有共价键合到聚合物基质中的聚合物种类或其组合的部分，所述分散的颗粒以小于复合材料的约60重量％的量存在，并且通过这种方法形成的复合材料

2. 发明授权

US4656235A Siloxane-containing polyimide coatings for electronic devices 失效
标题翻译：含硅氧烷的电子器件聚酰亚胺涂层
公开(公告)号：US4656235A
公开(公告)日：1987-04-07
申请号：US772785
申请日：1985-09-05
申请人： Giuliana C. Tesoro , Vinod R. Sastri , Subash C. Narang
发明人： Giuliana C. Tesoro , Vinod R. Sastri , Subash C. Narang
IPC分类号： C08F2/60 , C08G73/12 , C08F122/40
CPC分类号： C08G73/12 , C08F2/60
摘要： Siloxane-containing polyimides, useful as conformal coatings for electrical devices, can be synthesized via a novel Diels-Alder reaction in which bis-maleimide derivatives are polymerized with siloxane-containing bis-furan derivatives. The Diels-Alder adduct can be aromatized, and applied as a coating to a mineral substrate. The aromatized, polyimide coating can be cured thermally without additional cyclization on the substrate.
摘要翻译：可用作电气装置的保形涂层的含硅氧烷的聚酰亚胺可以通过新的Diels-Alder反应合成，其中双 - 马来酰亚胺衍生物与含硅氧烷的双呋喃衍生物聚合。 Diels-Alder加合物可以被芳构化，并且作为涂料施用于矿物基质。芳构化的聚酰亚胺涂层可以在基材上不加附加环化而热固化。

3. 发明授权

US06300399B1 High specific gravity polyester blend 有权
标题翻译：高比重涤纶混纺
公开(公告)号：US06300399B1
公开(公告)日：2001-10-09
申请号：US09442447
申请日：1999-11-18
申请人： Robert R. Gallucci , Galina D. Georgieva , Vinod R. Sastri
发明人： Robert R. Gallucci , Galina D. Georgieva , Vinod R. Sastri
IPC分类号： G08J504
CPC分类号： C08K3/08 , C08K2003/0887 , C08L67/00
摘要： A filled polyester molding composition which, based on the weight of the total composition, comprises (a) from about 5 to about 40 weight percent of a polyester resin; (b) from about 60 to about 95 percent of tungsten metal filler; and (c) from 0 to 20 weight percent of an impact modifier with a specific gravity greater than about 3.0 g./cc.
摘要翻译：基于总组合物的重量的填充聚酯模塑组合物包含（a）约5至约40重量％的聚酯树脂; （b）约60至约95％的钨金属填料; 和（c）0至20重量％的比重大于约3.0g./cc的抗冲改性剂。

4. 发明授权

US5260411A Polyimide resins 失效
标题翻译：聚酰亚胺树脂
公开(公告)号：US5260411A
公开(公告)日：1993-11-09
申请号：US183721
申请日：1988-04-20
申请人： Giuliana C. Tesoro , Vinod R. Sastri
发明人： Giuliana C. Tesoro , Vinod R. Sastri
IPC分类号： C08G73/10 , C08G73/12 , C08G69/26 , C08G75/00 , C08G75/14
CPC分类号： C08G73/106 , C08G73/1064 , C08G73/12 , Y02P20/582
摘要： A method for the preparation of a polyimide containing reversible crosslinks comprising the step of curing a monomer having the formula ##STR1## wherein R and R' may be the same or different and each is H or lower alkyl having 1-5 carbon atoms under conditions conducive to the formation of a polyimide and thereby forming a polyimide having the formula ##STR2## R and R' are as defined above and n is an integer from 10 to 100. The polyimide may be converted to a soluble polymer by cleaving the disulfide bond in the presence of a solvent and a reducing agent. The reduced polymer may be reformed into the polymer in an oxidation step or into a modified polyimide in other reaction steps. Copolymerization processes are also disclosed.
摘要翻译：一种制备含有可逆交联的聚酰亚胺的方法，包括固化具有式（I）的单体的步骤，其中R和R'可以相同或不同，并且各自为H或具有1-5个碳的低级烷基原子在有利于形成聚酰亚胺的条件下形成具有下式的聚酰亚胺（II）R和R'如上所定义，n是10至100的整数。聚酰亚胺可以转化为可溶的聚合物通过在溶剂和还原剂的存在下裂解二硫键。在其它反应步骤中，还原的聚合物可以在氧化步骤中重整成聚合物或改性为改性聚酰亚胺。还公开了共聚过程。

5. 发明授权

US4882399A Epoxy resins having reversible crosslinks 失效
标题翻译：具有可逆交联的环氧树脂
公开(公告)号：US4882399A
公开(公告)日：1989-11-21
申请号：US88179
申请日：1987-08-21
申请人： Giuliana C. Tesoro , Vinod R. Sastri
发明人： Giuliana C. Tesoro , Vinod R. Sastri
IPC分类号： C08G59/18 , C08G59/40 , C08G59/50
CPC分类号： C08G59/504 , C08G59/18 , C08G59/4028 , C08G59/4035 , C08G59/4064
摘要： A method for the preparation of insoluble, infusible epoxy resins containing reversible crosslinks comprising the steps of:(a) forming a reaction mixture of(i) an epoxy compound having two or more epoxy groups, and(ii) a crosslinking agent containing two or more epoxy-reactive groups and further containing a disulfide bond, said crosslinking agent being selected from compounds having the formulaQ--X--S--S--X--Q where Q is an epoxy-reactive functional group selected from ##STR1## and X is a divalent aromatic or aliphatic hydrocarbon radical of one to ten carbon atoms, and(b) curing said reaction mixture under conditions conductive to the formation of a crosslinked resin.The epoxy resin can be solubilized by cleavage of the disulfide bond by reduction in the presence of a solvent. The resultant thiol groups can be reoxidized to form the disulfide linkages or can be modified by other reactions.
摘要翻译：一种制备包含可逆交联的不溶性可投入环氧树脂的方法，包括以下步骤：（a）形成（i）具有两个或多个环氧基的环氧化合物的反应混合物，和（ii）含有两个或更多个环氧基的交联剂，更多的环氧反应性基团并且还含有二硫键，所述交联剂选自具有式QXSSXQ的化合物，其中Q是选自以下的环氧反应性官能团，X是二价芳族或脂族烃基， 10个碳原子，和（b）在导致形成交联树脂的条件下固化所述反应混合物。环氧树脂可以通过在溶剂存在下还原而溶解二硫键。所得到的硫醇基团可以被再氧化以形成二硫键，或者可以通过其它反应进行改性。

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