Polyaryl ether sulphones
    23.
    发明授权
    Polyaryl ether sulphones 失效
    聚芳醚砜

    公开(公告)号:US4785072A

    公开(公告)日:1988-11-15

    申请号:US81344

    申请日:1987-08-04

    CPC分类号: C08G65/38 C08G75/23

    摘要: Aryl ether sulfone polymers comprising a 4,4'-bis-phenylsulfonyl biphenyl and at least two additional arylene structural units exhibit improved toughness and stress crack resistance and a reduced tendency toward crystallization. The polymers and soluble and film-forming from solution, and may be used as coating and impregnating resins for producing laminates, fiber-reinforced composites and the like.

    摘要翻译: 包含4,4'-双 - 苯基磺酰基联苯和至少两个另外的亚芳基结构单元的芳基醚砜聚合物表现出改善的韧性和抗应力开裂性,并降低结晶倾向。 聚合物和溶液可溶和成膜,可用作生产层压板,纤维增强复合材料等的涂层和浸渍树脂。

    Wholly aromatic polyester of isophthalic acid, terephthalic acid,
p-hydroxybenzoic acid, hydroquinone and an arylene diol
    28.
    发明授权
    Wholly aromatic polyester of isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol 失效
    间苯二甲酸,对苯二甲酸,对羟基苯甲酸,氢醌和亚芳基二醇的全芳香族聚酯

    公开(公告)号:US5089594A

    公开(公告)日:1992-02-18

    申请号:US499481

    申请日:1990-06-04

    摘要: Aromatic polyesters based on isophthalic acid, terephthalic acid, p-hydroxybenzoic acid, hydroquinone and an arylene diol are described. The five monomers ae used in well-specified proportions and yield polymers that display an excellent overall combination of mechanical and thermal properties. The subject copolyesters have melting points of at least about 260.degree. C.; their heat distortion temperatures are at least about 200.degree. C. they have fiber ratings of up to 3. The novel polymers can be melt-fabricated using standard injection molding, extrusion and melt-spinning techniques.

    摘要翻译: PCT No.PCT / US89 / 04329 Sec。 371日期1990年6月4日第 102(e)日期1990年6月4日PCT提交1989年10月10日PCT公布。 公开号WO90 / 03992 日本1990年04月19日。描述了基于间苯二甲酸,对苯二甲酸,对羟基苯甲酸,氢醌和亚芳基二醇的芳族聚酯。 五种单体以良好的比例使用,并产生显示机械和热性能的极好整体组合的聚合物。 本发明共聚酯的熔点至少为约260℃。 它们的热变形温度至少约为200℃,它们具有高达3的纤维等级。新型聚合物可以使用标准注射成型,挤出和熔融纺丝技术进行熔融制造。

    High modulus, high strength melt-processible polyester of hydroquinone
poly (iso-terephthalates) containing residues of a p-hydroxybenzoic acid
    29.
    发明授权
    High modulus, high strength melt-processible polyester of hydroquinone poly (iso-terephthalates) containing residues of a p-hydroxybenzoic acid 失效
    含有对羟基苯甲酸残基的氢醌聚(异对苯二甲酸酯)的高模量,高强度可熔融加工的聚酯

    公开(公告)号:US5079289A

    公开(公告)日:1992-01-07

    申请号:US499482

    申请日:1990-06-04

    摘要: This invention pertains to novel copolyesters consisting essentially of units (I), (II), (III), and (V). ##STR1## and blends of these polymers and articles made from both. Units (I), (II), (III), and (IV) are present in specified proportions as defined in the "Description of the Invention". The instant copolyesters display orientation in the molten state, good fiber ratings and high strength; they have melting points in the range of from about 340.degree. to about 400.degree. C. and are melt-processible. Advantageously, these compositions filled with about 30 weight percent of glass fibers display heat distortion temperatures of over 240.degree. C. up to about 280.degree. C. and higher, when measured under a load of 264 psi. When blended, certain properties are improved, particularly they are easier to melt fabricate, have a decreased tendency to blister and increased strength. These polymers and blends may be used advantageously in ovenware, electronic components, electrical equipment, and other end uses requiring high temperatures.

    摘要翻译: 本发明涉及基本上由单元(I),(II),(III)和(V)组成的新型共聚酯。 这些聚合物和由两者制成的制品的混合物。 单位(I),(II),(III)和(IV)按照“发明描述”中定义的特定比例存在。 立即共聚酯在熔融态显示取向,良好的纤维等级和高强度; 它们的熔点在约340℃至约400℃的范围内,并且是可熔融加工的。 有利地,填充有约30重量%的玻璃纤维的这些组合物在264psi的载荷下测量时,显示超过240℃至高达约280℃的热变形温度。 当混合时,某些性能得到改善,特别是它们更容易熔化制造,具有降低的起泡倾向和增加的强度。 这些聚合物和共混物可以有利地用于需要高温的烤箱,电子部件,电气设备和其它最终用途。