Process for spinning high modulus oxybenzoyl copolyester fibers
    2.
    发明授权
    Process for spinning high modulus oxybenzoyl copolyester fibers 失效
    高模量羟基苯甲酰基共聚酯纤维纺丝方法

    公开(公告)号:US3975487A

    公开(公告)日:1976-08-17

    申请号:US389823

    申请日:1973-08-20

    CPC分类号: C08G63/605 D01F6/84

    摘要: High modulus oxybenzoyl copolyester fibers are produced by heating to an elevated temperature and stretching oxybenzoyl copolyesters fibers having molecular weights in the range of from 2,000 to 200,000 and melting points of at least 250.degree.C and comprising recurring moieties of Formulas I, II and III - ##SPC1##wherein n is 0 or 1; x, y and z are integers; y:z = from 10:15 to 15:10, x:y and x:z = from 1:100 to 100:1; x + y + z = from 30 to 600; the carbonyl group of Formula I is meta and/or para to the oxy group thereof; the carbonyl groups of Formula II are meta and/or para to each other; and the oxy atoms of Formula III are meta and/or para to each other; and in more than 50% of the total of sid moieties having said mentioned groups therein they are of para configuration. For Formulas I and II n is preferably 0 and for Formula III it is usually 1.

    摘要翻译: 通过加热至高温制备高模量羟基苯甲酰基共聚酯纤维,并拉伸分子量范围为2,000至200,000,熔点至少为250℃并含有式I,II和III的重复部分的氧代苯甲酰基共聚酯纤维, 其中n为0或1; x,y和z是整数; y:z = 10:15〜15:10,x:y,x:z = 1:100〜100:1; x + y + z = 30〜600; 式I的羰基是其氧基的间位和/或对位; 式II的羰基是彼此的间位和/或对位的; 并且式III的氧原子彼此是间位和/或对位的; 并且在其中具有所述组的sid部分的总数的50%以上是它们的对位构型。 对于式I和II,n优选为0,对于式III,其通常为1。

    Production of thermally stabilized aromatic polyesters
    3.
    发明授权
    Production of thermally stabilized aromatic polyesters 失效
    热稳定芳族聚酯的生产

    公开(公告)号:US4639504A

    公开(公告)日:1987-01-27

    申请号:US734953

    申请日:1985-05-16

    申请人: Steve G. Cottis

    发明人: Steve G. Cottis

    IPC分类号: C08G63/60 C08G63/87

    CPC分类号: C08G63/87 C08G63/60

    摘要: The production of oxybenzoyl polyesters is facilitated by the incorporation of a phosphite, particularly an organic phosphite, during the production enabling the production of molded articles from these polyesters of improved appearance and excellent properties.

    摘要翻译: 通过在生产过程中加入亚磷酸酯,特别是有机亚磷酸酯,可以促进氧苯甲酰聚酯的生产,使得能够从这些聚酯制备出具有改进的外观和优异性能的模塑制品。

    Injection moldable aromatic polyesters compositions and method of
preparation
    4.
    发明授权
    Injection moldable aromatic polyesters compositions and method of preparation 失效
    注塑成型芳族聚酯组合物及其制备方法

    公开(公告)号:US4563508A

    公开(公告)日:1986-01-07

    申请号:US611806

    申请日:1984-05-18

    CPC分类号: C08G63/605 C08L67/00

    摘要: The molding properties of molding compounds based on wholly aromatic polyesters are improved by the addition to such wholly aromatic polyester compositions of a minor amount of an aromatic polyester which is a combination of the following units: ##STR1## Where; p=0 to 0.9, q=0.1 to 1.00, r=1 to 7, S=0.3 to 1.00, t=0 to 0.7. A preferred formulation consists of a polyester where the units are: p=0, q=1.0, r=1 to 5 and S=1.0.

    摘要翻译: 通过加入少量芳族聚酯的全芳族聚酯组合物,其是以下列单元的组合,改善了基于全芳族聚酯的模塑料的成型性能:其中; p = 0〜0.9,q = 0.1〜1.00,r = 1〜7,S = 0.3〜1.00,t = 0〜0.7。 优选的配方由聚酯组成,其中单元为:p = 0,q = 1.0,r = 1至5,S = 1.0。

    Method for reducing crystalline orientation of para-oxybenzoyl polyesters
    5.
    发明授权
    Method for reducing crystalline orientation of para-oxybenzoyl polyesters 失效
    降低对羟基苯甲酰聚酯的结晶取向的方法

    公开(公告)号:US3974250A

    公开(公告)日:1976-08-10

    申请号:US394023

    申请日:1973-09-04

    摘要: Polyesters of para-oxybenzoyl are infusible and very resistant to acids and solvents, thus limiting the means by which such polymers can be fabricated. Such a polyester is made more amorphous, thus improving compression moldability, by subjecting it to a high temperature treatment, followed by a rapid quench. The resulting polymer has reduced crystalline orientation, as evidenced by X-ray diffraction patterns, and molded articles thereof have improved flexural strength, without adversely affecting the modulus. The thermal treatment is carried out on the polymer by heating at a temperature of at least 300.degree.C, and up to just below the decomposition temperature of the polymer, followed by quenching of the hot polymer.

    摘要翻译: 对羟基苯甲酰基的聚酯是不可渗透的,并且对酸和溶剂非常耐受,因此限制了可以制造这种聚合物的方法。 这样的聚酯制得更加无定形,从而通过对其进行高温处理,然后快速淬火来提高压模成型性。 如X射线衍射图所示,所得聚合物具有降低的晶体取向,并且其模塑制品具有改善的弯曲强度,而不会对模量产生不利影响。 通过在至少300℃的温度下加热至高于聚合物的分解温度,然后淬灭热聚合物,对聚合物进行热处理。

    Partially crosslinked linear aromatic polyesters
    6.
    发明授权
    Partially crosslinked linear aromatic polyesters 失效
    部分交联的线性芳族聚酯

    公开(公告)号:US3980749A

    公开(公告)日:1976-09-14

    申请号:US554938

    申请日:1975-03-03

    摘要: Partially crosslinked thermoplastic polyesters of recurring linear moieties of the formula ##SPC1##Are described wherein n is 0 or 1, and p, q and r are integers which total 30 to 600. The polyester is partially crosslinked by oxidizing meltable polymer to a "gelled" thermoplastic state, producing molecules of average molecular weights in the range of 10,000 to 1,000,000, preferably of 100,000 to 500,000.

    摘要翻译: 分子式ARE的重复直链部分部分交联的热塑性聚酯,其中N为0或1,且P,Q和R为整数30至600.聚酯通过将可熔化聚合物氧化为“凝胶化”热塑性状态而部分交联 产生10,000至1,000,000,优选100,000至500,000的平均分子量的分子。

    Compositions containing liquid crystalline polymers
    8.
    发明授权
    Compositions containing liquid crystalline polymers 有权
    含有液晶聚合物的组合物

    公开(公告)号:US6093765A

    公开(公告)日:2000-07-25

    申请号:US185178

    申请日:1998-11-03

    申请人: Steve G. Cottis

    发明人: Steve G. Cottis

    CPC分类号: C08K3/34 C08K7/00

    摘要: Excellent mold release coupled with a good retention of mechanical properties (i.e., flexural strength and flexural modulus) is made possible in the liquid-crystal polyester resin composition of the present invention, which comprises: a) 35-85 wt. % of a wholly aromatic polyester which is melt processable and which displays anisotropy in the molten state; b) 15-65 wt. % of a platelet-shaped filler having a mean particle size of less than 5 microns; and c) optionally, up to 20 wt. % titanium dioxide.

    摘要翻译: 在本发明的液晶聚酯树脂组合物中,可以实现良好的脱模性和良好的机械性能保持(即弯曲强度和弯曲模量),其包括:a)35-85wt。 %的全芳族聚酯,其是可熔融加工的并且在熔融状态下显示各向异性; b)15-65重量% %的平均粒度小于5微米的片状填料; 和c)任选地,至多20wt。 % 二氧化钛。