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91. 发明授权

US4611025A Process for the production of thermoplastic compositions containing thermotropic oligomers and compositions produced by such process 失效
标题翻译：用于生产含有热致低聚物和通过这种方法制备的组合物的热塑性组合物的方法
公开(公告)号：US4611025A
公开(公告)日：1986-09-09
申请号：US720103
申请日：1985-04-04
申请人： Murali K. Akkapeddi , Bruce T. DeBona , Hsin L. Li , Dusan C. Prevorsek
发明人： Murali K. Akkapeddi , Bruce T. DeBona , Hsin L. Li , Dusan C. Prevorsek
IPC分类号： C08G69/46 , C08J3/00 , C08K3/34 , C08L67/02
CPC分类号： C08K3/34 , C08G69/46 , C08J3/005 , C08L67/02
摘要： A process of blending two or more polymers having varying viscosities by blending the polymers in the melt in the presence of a solid particulate material to form polymer blends having improved dispersion of the polymer.
摘要翻译：通过在固体颗粒材料的存在下共混熔体中的聚合物以形成具有改进的聚合物分散体的聚合物共混物来混合具有不同粘度的两种或更多种聚合物的方法。

92. 发明授权

US4565850A Thermoplastic composition containing nematic oligomer 失效
标题翻译：含有向列型低聚物的热塑性组合物
公开(公告)号：US4565850A
公开(公告)日：1986-01-21
申请号：US471934
申请日：1983-03-03
申请人： Dusan C. Prevorsek , Murali K. Akkapeddi
发明人： Dusan C. Prevorsek , Murali K. Akkapeddi
IPC分类号： C08L67/02 , C08L101/00 , D01F6/88 , C08L59/00 , C08L69/00 , C08L77/00
CPC分类号： D01F6/88 , C08L101/00 , C08L67/02
摘要： A thermotropic oligomer such as a polyester is blended with a high molecular weight thermoplastic polymer such as poly(ethylene terephthalate) to raise the modulus value of the composition compared to the polymer alone, especially at the glass transition temperature of the polymer and above.
摘要翻译：与诸如聚（对苯二甲酸乙二醇酯）的高分子量热塑性聚合物一起，将热致低聚物与聚合物（聚对苯二甲酸乙二醇酯）共混以提高组合物的模量值，与单独的聚合物相比，特别是在聚合物及其以上的玻璃化转变温度下。

93. 发明授权

US4551296A Producing high tenacity, high modulus crystalline article such as fiber or film 失效
标题翻译：生产高强度，高模量的结晶制品如纤维或薄膜
公开(公告)号：US4551296A
公开(公告)日：1985-11-05
申请号：US572607
申请日：1984-01-20
申请人： Sheldon Kavesh , Dusan C. Prevorsek
发明人： Sheldon Kavesh , Dusan C. Prevorsek
IPC分类号： D01F6/02 , D01F6/04 , D01F6/06 , D01F6/00
CPC分类号： D01F6/06 , D01F6/02 , D01F6/04
摘要： Solutions of ultrahigh molecular weight polymers such as polyethylene in a relatively non-volatile solvent are extruded through an aperture at constant concentration through the aperture and cooled to form a first gel of indefinite length. The first gels are extracted with a volatile solvent to form a second gel and the second gel is dried to form a low porosity xerogel. The first gel, second gel or xerogel, or a combination, are stretched. Among the products obtainable are polyethylene fibers of greater than 30 or even 40 g/denier tenacity and of modulus greater than 1000 or even 1600 or 2000 g/denier.
摘要翻译：在相对非挥发性溶剂中的超高分子量聚合物如聚乙烯的溶液通过孔径以恒定浓度挤出，并冷却以形成不定长度的第一凝胶。用挥发性溶剂萃取第一凝胶以形成第二凝胶，并将第二凝胶干燥以形成低孔隙率干凝胶。第一凝胶，第二凝胶或干凝胶或其组合被拉伸。可获得的产品是大于30甚至40g /旦尼尔强度和大于1000或甚至1600或2000g /旦尼尔的模量的聚乙烯纤维。

94. 发明授权

US4536536A High tenacity, high modulus polyethylene and polypropylene fibers and intermediates therefore 失效
标题翻译：因此，高韧性，高模量聚乙烯和聚丙烯纤维以及中间体
公开(公告)号：US4536536A
公开(公告)日：1985-08-20
申请号：US523503
申请日：1983-10-03
申请人： Sheldon Kavesh , Dusan C. Prevorsek
发明人： Sheldon Kavesh , Dusan C. Prevorsek
IPC分类号： D01F6/02 , D01F6/04 , C08K5/02
CPC分类号： D01F6/04 , D01F6/02
摘要： Solutions of ultrahigh molecular weight polymers such as polyethylene in a relatively nonvolatile solvent are extruded through an aperture at constant concentration through the aperture and cooled to form a first gel of indefinite length. The first gels are extracted with a volatile solvent to form a second gel and the second gel is dried to form a low porosity xerogel. The first gel, second gel or xerogel, or a combination, are stretched. Among the products obtainable are polyethylene fibers of greater than 30 or even 40 g/denier tenacity and of modulus greater than 1000 or even 1600 or 2000 g/denier.
摘要翻译：在相对不挥发性溶剂中的超高分子量聚合物如聚乙烯的溶液通过孔径以恒定浓度的孔挤出，并冷却以形成不定长度的第一凝胶。用挥发性溶剂萃取第一凝胶以形成第二凝胶，并将第二凝胶干燥以形成低孔隙率干凝胶。第一凝胶，第二凝胶或干凝胶或其组合被拉伸。可获得的产品是大于30甚至40g /旦尼尔强度和大于1000或甚至1600或2000g /旦尼尔的模量的聚乙烯纤维。

95. 发明授权

US4310652A Melt processable poly(ester carbonate) with high glass transition temperature 失效
标题翻译：具有高玻璃化转变温度的可熔融加工的聚（碳酸酯）
公开(公告)号：US4310652A
公开(公告)日：1982-01-12
申请号：US133228
申请日：1980-03-24
申请人： Bruce T. DeBona , Dusan C. Prevorsek
发明人： Bruce T. DeBona , Dusan C. Prevorsek
IPC分类号： C08G63/00 , C08G63/64
CPC分类号： C08G63/64
摘要： Poly(ester aromatic dihydric alcohol) polymers having carbonate moieties, aromatic or cycloaliphatic dicarboxylic acid moieties and carbonate moieties and having high glass transition temperatures (over 100.degree. C.) and being melt processable. At least part of the aromatic dihydric alcohol moieties have the 4-carbon of each of two phenoxies covalently bonded to the same ring carbon of a carbocyclic or heterocyclic moiety. Representative poly(ester carbonates) are formed from bisphenol-A, phenolphthalein, terephthaloyl chloride and phosgene.
摘要翻译：具有碳酸酯部分，芳族或脂环族二羧酸部分和碳酸酯部分并具有高玻璃化转变温度（超过100℃）并且可熔融加工的聚（酯芳族二元醇）聚合物。至少部分芳族二元醇部分具有共价键合到碳环或杂环部分的相同环碳上的两个苯氧基中的每一个的4-碳。代表性的聚（碳酸酯）由双酚A，酚酞，对苯二甲酰氯和光气形成。

96. 发明授权

US4165634A Viscoelastometer and process for measuring viscoelastic properties 失效
标题翻译：粘弹性计及粘弹性测定方法
公开(公告)号：US4165634A
公开(公告)日：1979-08-28
申请号：US875712
申请日：1978-02-06
申请人： Dusan C. Prevorsek , Young D. Kwon , Raj K. Sharma
发明人： Dusan C. Prevorsek , Young D. Kwon , Raj K. Sharma
IPC分类号： G01N3/34 , G01N3/32
CPC分类号： G01N3/34 , G01N2203/0016 , G01N2203/0094 , G01N2203/0226
摘要： An improved apparatus and process are described for measuring linear and non-linear viscoelastic properties of viscoelastic materials such as nylon, polyester tire cord, rubber, rubber-tire cord composites and the like. The properties are determined by subjecting a sample material to a constant-rate strain displacement having a small amplitude high frequency sinusoidal strain displacement superimposed thereon, and analyzing the overall resulting material stress. The obtained properties can be used to predict and estimate actual end use characteristics of the material such as longevity and mechanical loss during performance. In the case of tire cord, this latter characteristic can be surprisingly related to efficiency of fuel consumption in automotive vehicles.
摘要翻译：描述了用于测量诸如尼龙，聚酯轮胎帘线，橡胶，橡胶轮胎帘线复合材料等的粘弹性材料的线性和非线性粘弹性的改进的装置和方法。通过使样品材料经受叠加在其上的具有小振幅高频正弦应变位移的恒定速率应变位移并分析总体产生的材料应力来确定性能。所获得的性能可用于预测和估计材料的实际最终使用特性，如寿命和性能过程中的机械损失。在轮胎帘线的情况下，后者的特征可以令人惊讶地与机动车辆的燃料消耗效率相关。

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