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公开(公告)号:US5041522A
公开(公告)日:1991-08-20
申请号:US498255
申请日:1990-03-23
申请人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
发明人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
摘要: There are provided novel rod-like heterocyclic aromatic polymers having repeating groups of the formula: ##STR1## wherein Y is --S--, --O-- or --NR--, R is --H, an alkyl group having 1 to 4 carbon atoms or an aromatic group having 1 or 2 aromatic rings, and the bullet symbol (.cndot.) indicates hydrogen bonding.
摘要翻译: 提供了具有下式重复基团的新型棒状杂环芳族聚合物:其中Y是-S-,-O-或-NR-,R是-H,烷基具有1〜 4个碳原子或具有1或2个芳香环的芳族基团,并且子符号(。)表示氢键。
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公开(公告)号:US5136012A
公开(公告)日:1992-08-04
申请号:US709252
申请日:1991-06-03
申请人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
发明人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
摘要: There are provided novel rod-like heterocyclic aromatic copolymers having peating groups of the formula: ##STR1## wherein n has a value of 0.01 to 0.50, wherein Ar is a para-oriented aromatic group and Q is an aromatic heterocyclic group of the formula: ##STR2## wherein Y is --S--, --O-- or --NR--, wherein R is selected from the group consisting of --H, alkyl having 1 to 4 carbon atoms, and aromatic having 1 or 2 aromatic rings.
摘要翻译: 提供了具有下式重复基团的新型棒状杂环芳族共聚物:其中n为0.01至0.50,其中Ar为对位取向芳族基团,Q为下式芳族杂环基: 其中Y是-S-,-O-或-NR-,其中R选自-H,具有1至4个碳原子的烷基和具有1或2个芳环的芳族。
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公开(公告)号:US5106940A
公开(公告)日:1992-04-21
申请号:US709250
申请日:1991-06-03
申请人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
发明人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
摘要: There are provided novel rod-like heterocyclic aromatic polymers having repeating groups of the formula: ##STR1## wherein Y is --S--, --O-- or --NR--, R is -H, an alkyl group having 1 to 4 carbon atoms or an aromatic group having 1 or 2 aromatic rings, and the bullet symbol (.cndot.) indicates hydrogen bonding.
摘要翻译: 提供了具有下式重复基团的新型棒状杂环芳族聚合物:其中Y是-S-,-O-或-NR-,R是-H,烷基具有1〜 4个碳原子或具有1或2个芳香环的芳族基团,并且子符号(。)表示氢键。
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公开(公告)号:US5039778A
公开(公告)日:1991-08-13
申请号:US498256
申请日:1990-03-23
申请人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
发明人: Thuy D. Dang , Hoe H. Chuah , Loon S. Tan , Fred E. Arnold
摘要: There are provided novel rod-like heterocyclic aromatic copolymers having repeating groups of the formula: ##STR1## wherein n has a value of 0.01 to 0.50, wherein Ar is a para-oriented aromatic group and Q is an aromatic heterocyclic group of the formula: ##STR2## wherein Y is --S--, --O-- or --NR--, wherein R is selected from the group consisting of --H, alkyl having 1 to 4 carbon atoms, and aromatic having 1 or 2 aromatic rings.
摘要翻译: 提供了具有下式重复基团的新型棒状杂环芳族共聚物:其中n为0.01至0.50,其中Ar为对位取向芳族基团,Q为下式芳族杂环基: 其中Y是-S-,-O-或-NR-,其中R选自-H,具有1至4个碳原子的烷基和具有1或2个芳环的芳族。
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公开(公告)号:US4977223A
公开(公告)日:1990-12-11
申请号:US307112
申请日:1989-02-02
申请人: Fred E. Arnold , Thaddeus E. Helminiak , Donald R. Wiff , Loon S. Tan , Wen F. Hwang , Hoe Chuah
发明人: Fred E. Arnold , Thaddeus E. Helminiak , Donald R. Wiff , Loon S. Tan , Wen F. Hwang , Hoe Chuah
CPC分类号: C08J5/18 , C08G73/18 , C08G73/22 , C08L77/00 , C08L79/04 , D01F6/94 , C08J2377/00 , C08J2379/04
摘要: Provided is a molecular composite comprising a rigid-rod aromatic heterocyclic polymer, a flexible, coil-like thermoplastic polymer and a thermosetting polymer.Also provided is a method for fabricating a molecular composite film or fiber which comprises the steps of forming a biphasic, stir opalescent solution of a rigid-rod aromatic heterocyclic polymer, a thermoplastic polymer, a thermosetting polymer and a solvent which is common to the three polymers, adding solvent to the solution until the solution becomes isotropic and stir opalescence has ceased to determine the critical concentration of polymers in the solvent, adding additional solvent to the solution so that the polymer concentration is below the critical concentration, extruding the solution into a non-solvent for the polymers to form the desired film or fiber, drying the film or fiber and hot drawing the film or fiber at a temperature above the Tg of the thermoplastic, but below the polymerization temperature (Tpoly) of the thermosetting resin.
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公开(公告)号:US5095075A
公开(公告)日:1992-03-10
申请号:US625505
申请日:1990-12-11
申请人: Fred E. Arnold , Thaddeus E. Helminiak , Donald R. Wiff , Loon S. Tan , Wen F. Hwang , Hoe Chuah
发明人: Fred E. Arnold , Thaddeus E. Helminiak , Donald R. Wiff , Loon S. Tan , Wen F. Hwang , Hoe Chuah
CPC分类号: C08J5/18 , C08G73/18 , C08G73/22 , C08L77/00 , C08L79/04 , D01F6/94 , C08J2377/00 , C08J2379/04
摘要: Provided is a molecular composite comprising a rigid-rod aromatic heterocyclic polymer, a flexible, coil-like thermoplastic polymer and a thermosetting polymer.Also provided is a method for fabricating a molecular composite film or fiber which comprises the steps of forming a biphasic, stir opalescent solution of a rigid-rod aromatic heterocyclic polymer, a thermoplastic polymer, a thermosetting polymer and a solvent which is common to the three polymers, adding solvent to the solution until the solution becomes isotropic and stir opalescence has ceased to determine the critical concentration of polymers in the solvent, adding additional solvent to the solution so that the polymer concentration is below the critical concentration, extruding the solution into a non-solvent for the polymers to form the desired film or fiber, drying the film or fiber and hot drawing the film or fiber at a temperature above the Tg of the thermoplastic, but below the polymerization temperature (Tpoly) of the thermosetting resin.
摘要翻译: 提供了包含刚性 - 芳族芳族杂环聚合物,柔性卷曲状热塑性聚合物和热固性聚合物的分子复合材料。 还提供了一种制造分子复合膜或纤维的方法,其包括以下步骤:形成刚性棒状芳族杂环聚合物的双相,搅拌乳白色溶液,热塑性聚合物,热固性聚合物和三元共聚的溶剂 聚合物,向溶液中加入溶剂,直到溶液变为各向同性,并且搅动乳光已经停止确定聚合物在溶剂中的临界浓度,向溶液中加入另外的溶剂,使得聚合物浓度低于临界浓度,将溶液挤出成 用于形成所需膜或纤维的非溶剂,干燥膜或纤维,并且在高于热塑性塑料的Tg但低于热固性树脂的聚合温度(Tpoly)的温度下热拉薄膜或纤维。
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