-
1.发明授权Low-melting aromatic polyesters of trifluoromethyl terephthalic acid or ester forming derivatives thereof 失效三氟甲基对苯二甲酸的低熔点芳族聚酯或其形成酯的衍生物
公开(公告)号：US4575547A
公开(公告)日：1986-03-11
申请号：US674775
申请日：1984-11-26
IPC分类号： C08G63/682 , C08G63/68
CPC分类号： C08G63/6826
摘要： Aromatic polyesters exhibiting melt processability are disclosed. The polyesters comprise repeating units of the formula ##STR1## wherein X is hydrogen, halogen, alkyl or nitro. The polyesters exhibit low-melting properties, melt processability and melt anisotropy. The aromatic polyesters can be melt processed to films and fibers.
摘要翻译： 公开了显示熔融加工性的芳族聚酯。 聚酯包含下式的重复单元，其中X是氢，卤素，烷基或硝基。 聚酯具有低熔点性能，熔融加工性和熔体各向异性。 芳族聚酯可以熔融加工成薄膜和纤维。
-
2.发明授权Low-melting aromatic polyesters with repeating 2,2'-substituted-biphenylene radicals 失效具有重复2,2'-取代 - 亚联苯基的低熔点芳族聚酯
公开(公告)号：US4608429A
公开(公告)日：1986-08-26
申请号：US674515
申请日：1984-11-23
IPC分类号： C08G63/191 , C08G63/672 , C08G63/682 , C08G63/18
CPC分类号： C08G63/191 , C08G63/672 , C08G63/6826
摘要： A class of aromatic polyesters exhibiting melt processability is disclosed. A portion of repeating 2,2'-substituted-biphenylene radicals in an aromatic polyester is replaced by certain other aromatic radicals to provide an aromatic polyester which exhibits low-melting properties, melt processability and melt anisotropy. The aromatic polyesters can be melt processed to films and fibers.
摘要翻译： 公开了一类表现出熔融加工性能的芳族聚酯。 芳族聚酯中的一部分重复的2,2'-取代的亚联苯基被某些其它芳族基团所取代，从而提供一种芳族聚酯，它具有低熔点性能，熔融加工性和熔体各向异性。 芳族聚酯可以熔融加工成薄膜和纤维。
-
3.发明授权Melt-processable aromatic polyesteramide having repeating 2,2'-substituted biphenylene radicals 失效具有重复2,2'-取代亚联苯基的可熔融加工的芳族聚酯酰胺
公开(公告)号：US4843141A
公开(公告)日：1989-06-27
申请号：US138064
申请日：1987-12-28
IPC分类号： C08G69/44
CPC分类号： C08G69/44
摘要： Melt-processable polyesteramides capable of exhibiting melt-phase anisotropy at temperatures of approximately 360.degree. C. and lower are disclosed. The polyesteramides contain certain essential 2,2'-substituted biphenylene radicals and repeating units which provide ester and amide linkages. The polyesteramides exhibit melt processability suitable for processing into films and fibers.
-
4.发明授权Melt-processable polyesteramides having para-linked, substituted-phenylene radicals 失效具有对位取代的亚苯基的可熔融加工的聚酯酰胺
公开(公告)号：US4792597A
公开(公告)日：1988-12-20
申请号：US138062
申请日：1987-12-28
IPC分类号： C08G69/44
CPC分类号： C08G69/44
摘要： Aromatic polyesteramides exhibiting melt processability are disclosed. The polyesteramides comprise certain essential repeating units of the formulas ##STR1## wherein X is alkyl, alkoxy, trifluoromethyl, halogen or nitro. The polyesteramides exhibit melt anisotropy. Films and fibers combining a balance of properties suited to high strength service can be provided from the melt-processable polyesteramides.
-
公开(公告)号：US5132430A
公开(公告)日：1992-07-21
申请号：US721191
申请日：1991-06-26
IPC分类号： C07D209/88
CPC分类号： C07D209/88
摘要： Ethylenically unsaturated polymerizable acrylic (or methacrylic) monomers having pendant halogenated carbazole moieties, useful for the production of high refractive index polymers, are disclosed. The monomers are useful for the bonding of optical elements in the fabrication of optical devices.
摘要翻译： 公开了可用于生产高折射率聚合物的具有侧卤化咔唑部分的烯属不饱和可聚合丙烯酸（或甲基丙烯酸）单体。 单体可用于光学元件的制造中的光学元件的结合。
-
公开(公告)号：US4628125A
公开(公告)日：1986-12-09
申请号：US578694
申请日：1984-02-09
IPC分类号： C08G63/682 , C07C39/15
CPC分类号： C08G63/6826
摘要： A class of polyesters comprising recurring units having certain bis(trifluoromethyl)biphenylene radicals is disclosed. The polyesters exhibit favorable solubility properties in certain organic solvents so as to facilitate the production of the polyesters via polycondensation methods to film- and fiber-forming molecular weights. Monomeric compounds comprising a bis(trifluoromethyl)biphenylene radical and useful for the production of the polyesters are also disclosed.
摘要翻译： 公开了一类包含具有某些双（三氟甲基）亚联苯基的重复单元的聚酯。 聚酯在某些有机溶剂中表现出良好的溶解性，从而有助于通过缩聚方法将聚酯生产成膜和成纤分子量。 还公开了包含双（三氟甲基）亚联苯基并且可用于制备聚酯的单体化合物。
-
公开(公告)号：US4433132A
公开(公告)日：1984-02-21
申请号：US414473
申请日：1982-09-02
IPC分类号： C08G63/682 , C08G63/06 , C08G63/18 , C08G63/68
CPC分类号： C08G63/6826
摘要： A class of polyesters comprising recurring units having certain bis(trifluoromethyl)biphenylene radicals is disclosed. The polyesters exhibit favorable solubility properties in certain organic solvents so as to facilitate the production of the polyesters via polycondensation methods to film- and fiber-forming molecular weights. Monomeric compounds comprising a bis(trifluoromethyl)biphenylene radical and useful for the production of the polyesters are also disclosed.
摘要翻译： 公开了一类包含具有某些双（三氟甲基）亚联苯基的重复单元的聚酯。 聚酯在某些有机溶剂中表现出良好的溶解性，从而有助于通过缩聚方法将聚酯生产成膜和成纤分子量。 还公开了包含双（三氟甲基）亚联苯基并且可用于制备聚酯的单体化合物。
-
8.发明授权
公开(公告)号：US4520189A
公开(公告)日：1985-05-28
申请号：US601619
申请日：1984-04-18
摘要： Optical devices including a molecularly oriented highly birefringent polymer are disclosed. The devices include molecularly oriented polymers comprising recurring units which exhibit a distribution of high electron density about the long axes of the polymer and the recurring units thereof. Transparent birefringent polymers comprising a plurality of recurring units having a substantially cylindrical distribution of electron density about the long axis of such units and the chain-extended polymers are included in optical devices and articles. The polymers exhibit high birefringence and simulate in a polymer the optical properties of uniaxial crystal.
摘要翻译： 公开了包括分子取向的高双折射聚合物的光学器件。 这些装置包括分子取向聚合物，其包含围绕聚合物长轴和其重复单元显示出高电子密度分布的重复单元。 包括多个重复单元的透明双折射聚合物包含在光学器件和制品中，所述重复单元具有围绕这种单元的长轴的基本上圆柱形的电子密度分布和扩链聚合物。 聚合物表现出高双折射性，并且在聚合物中模拟单轴晶体的光学性质。
-
公开(公告)号：US4461888A
公开(公告)日：1984-07-24
申请号：US486801
申请日：1983-04-20
摘要： A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals.Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly berefringent polymers are suited to applicaiton in optical filter and other devices where a refractive and birefringent material is desired.
摘要翻译： 公开了一类包含具有某些取代的亚联苯基或取代的二苯乙烯基团的重复单元的聚酰胺。 取代的基团包括取代基，以便赋予非共面分子构型和围绕重复单元的长轴和包含这种基团的链延长聚合物的电子密度的基本圆柱形分布。 本发明的分子取向聚合物表现出光学单轴性质。 高度反射的聚合物适用于需要折射和双折射材料的滤光器和其它器件中。
-
10.发明授权Polyamide comprising substituted biphenylene or substituted stilbene radicals 失效包含取代的亚联苯或取代的二苯乙烯基团的聚酰胺
公开(公告)号：US4384107A
公开(公告)日：1983-05-17
申请号：US238069
申请日：1981-03-02
摘要： A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals.Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly birefringent polymers are suited to application in optical filter and other devices where a refractive and birefringent material is desired.
摘要翻译： 公开了一类包含具有某些取代的亚联苯基或取代的二苯乙烯基团的重复单元的聚酰胺。 取代的基团包括取代基，以便赋予非共面分子构型和围绕重复单元的长轴和包含这种基团的链延长聚合物的电子密度的基本圆柱形分布。 本发明的分子取向聚合物表现出光学单轴性质。 高双折射聚合物适用于需要折射和双折射材料的滤光器和其他器件。
-
-
-
-
-
-
-
-
-
搜索结果
35 条记录 (耗时 0.034 秒)
