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公开(公告)号：US3983080A
公开(公告)日：1976-09-28
申请号：US508024
申请日：1974-09-20
CPC分类号： C08J9/143 , C08J2327/08 , Y10S521/91
摘要： This invention is directed to a process for forming stable, low density, fine celled extruded foam from normally crystalline vinylidene chloride polymers such process comprising (1) forming an admixture of a normally crystalline vinylidene chloride polymer in powder form with a blowing agent composed of a compound or mixture of compounds having a boiling point of less than about 40.degree.C, a vapor pressure at the foaming temperature used of greater than atmospheric pressure and less than about 1000 p.s.i. and a solubility parameter of greater than about 6.6 and less than about 8.7, then (2) extrusion foaming the admixture using an extrusion temperature of from about 120.degree.C to about 150.degree.C.
摘要翻译： 本发明涉及从通常结晶的偏二氯乙烯聚合物形成稳定的低密度细孔挤出泡沫的方法，该方法包括（1）形成粉末状的正常结晶偏二氯乙烯聚合物与发泡剂的混合物，所述发泡剂由 沸点小于约40℃的化合物或化合物的混合物，使用的发泡温度的蒸气压大于大气压，小于约1000psi 和大于约6.6且小于约8.7的溶解度参数，然后（2）使用约120℃至约150℃的挤出温度将混合物挤出发泡。
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2.依法登记的发明Polycarbonate-block copolymer blend with improved solvent and impact resistance 失效具有改善溶剂和耐冲击性的聚碳酸酯 - 嵌段共聚物共混物
公开(公告)号：USH1432H
公开(公告)日：1995-04-04
申请号：US873336
申请日：1992-04-20
CPC分类号： C08L53/025 , C08L69/00 , C08L69/005 , C08L2666/14 , C08L53/00
摘要： A modified polycarbonate composition comprising a blend of a bisphenol A-based polycarbonate and from greater than about 5% and less than about 15% by weight of a high molecular weight hydrogenated styrene-butadiene-styrene triblock copolymer has dramatically improved environmental stress crack resistance as well as improved impact resistance properties.
摘要翻译： 包含双酚A基聚碳酸酯和大于约5重量％且小于约15重量％的高分子量氢化苯乙烯 - 丁二烯 - 苯乙烯三嵌段共聚物的共混物的改性聚碳酸酯组合物显着提高了耐环境应力开裂性 以及改善的抗冲击性能。
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3.发明授权Thermoplastic polyblends of aromatic polycarbonates and thermoplastic polyurethanes 失效芳族聚碳酸酯和热塑性聚氨酯的热塑性共混物
公开(公告)号：US4912177A
公开(公告)日：1990-03-27
申请号：US346506
申请日：1989-05-02
IPC分类号： C08L69/00
CPC分类号： C08L69/00
摘要： This invention relates to binary thermoplastic polyblend consisting essentially of a thermoplastic aromatic polycarbonate and a thermoplastic polyester polyol-based polyurethane (TPU). The polyblends exhibit improved hydrocarbon solvent resistance and melt flow properties over polycarbonate resins.
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4.发明授权Thermoplastic polyblends of aromatic polycarbonates and thermoplastic polyurethanes 失效芳族聚碳酸酯和热塑性聚氨酯的热塑性共混物
公开(公告)号：US5162461A
公开(公告)日：1992-11-10
申请号：US644476
申请日：1991-01-18
IPC分类号： C08L69/00
CPC分类号： C08L69/00
摘要： This invention relates to binary thermoplastic polyblend that comprises a thermoplastic aromatic polycarbonate and a polycaprolactone polyol-based thermoplastic polyurethane (TPU). The polyblends exhibit improved hydrocarbon solvent resistance and melt flow properties.
摘要翻译： 本发明涉及二元热塑性聚合物，其包含热塑性芳族聚碳酸酯和聚己内酯多元醇基热塑性聚氨酯（TPU）。 聚合物共混物表现出改善的耐烃溶剂性和熔体流动性能。
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公开(公告)号：US3933959A
公开(公告)日：1976-01-20
申请号：US286305
申请日：1972-09-05
CPC分类号： B29C67/20 , B65D81/09 , Y10T428/2922 , Y10T428/2967 , Y10T428/2975 , Y10T428/2976
摘要： Generally linear foamable strandular particles which are asymmetrical about a plane generally containing the longitudinal axis provide a desired curled dunnage material when heated to cause foaming. A wide variety of methods may be used to introduce the desired asymmetry.
摘要翻译： 通常在通常包含纵向轴线的平面上不对称的线性可发泡链状颗粒在加热时提供所需的卷曲垫料以引起起泡。 可以使用各种各样的方法来引入期望的不对称性。
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公开(公告)号：US5091461A
公开(公告)日：1992-02-25
申请号：US334411
申请日：1989-04-07
摘要： Filled polymer blends comprising a polycarbonate, a rubber modified copolymer of a vinyl aromatic monomer and from 4 to 18 weight percent of an inorganic filler.
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7.发明授权
公开(公告)号：US4059545A
公开(公告)日：1977-11-22
申请号：US643452
申请日：1975-12-22
CPC分类号： C08J9/04 , C08J2325/00 , Y10S521/907
摘要： A monovinylidene aromatic polymer foam having reduced propensity to ignite is produced by (1) foaming a copolymer of monovinylidene aromatic monomer and an ethylenically unsaturated carboxylic anhydride wherein a portion of the copolymer contains halogen moiety and (2) subsequently crosslinking the copolymer foam by contacting it with a crosslinking agent such as alkylene polyamine. The resultant copolymer foam does not melt or drip upon exposure to flame.
摘要翻译： 通过（1）使单亚乙烯基芳族单体和烯键式不饱和羧酸酐的共聚物发泡，其中一部分共聚物含有卤素部分，和（2）随后通过接触将共聚物泡沫体交联，从而产生具有降低的点燃倾向的单亚乙烯基芳族聚合物泡沫体 与交联剂如亚烷基多胺。 所得共聚物泡沫体在暴露于火焰时不会熔化或滴落。
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