Polyester composition and films produced therefrom
    5.
    发明授权
    Polyester composition and films produced therefrom 失效
    聚酯组合物及其制备的薄膜

    公开(公告)号:US6083617A

    公开(公告)日:2000-07-04

    申请号:US750576

    申请日:1996-12-11

    摘要: A polyester composition comprising 0.005 to 10% by weight compound oxide particles having a volume average particle meter of 0.005 to 2 .mu.m, a relative standard deviation .sigma. of the particle diameter of not more than 0.3, and composed mainly of silicon (Si), aluminum (Al) and at least one alkali metal (M), wherein the contents of the silicon, aluminum and alkali metal satisfy the following requirements: 10 wt. %.ltoreq.Si.ltoreq.45 wt. %, 3 wt. %.ltoreq.Al.ltoreq.30 wt. % and 0.5 wt. %.ltoreq.M.ltoreq.20 wt. %, respectively. The polyester composition, particularly when formed into films, has excellent surface evenness, running ability and abrasion resistance, and such films are suitable particularly for magnetic recording media and other applications.

    摘要翻译: PCT No.PCT / JP96 / 00992 Sec。 371日期1996年12月11日第 102(e)日期1996年12月11日PCT PCT 1996年4月11日PCT公布。 公开号WO96 / 32443 日期:1996年10月17日一种聚酯组合物,其包含0.005〜10重量%的体积平均粒度计为0.005〜2μm的复合氧化物粒子,粒径的相对标准偏差σ为0.3以下,主要由 硅(Si),铝(Al)和至少一种碱金属(M),其中硅,铝和碱金属的含量满足以下要求:10wt。 %

    Catalyst for producing polyesters and polyester resin composition
    7.
    发明申请
    Catalyst for producing polyesters and polyester resin composition 审中-公开
    用于生产聚酯和聚酯树脂组合物的催化剂

    公开(公告)号:US20120034480A1

    公开(公告)日:2012-02-09

    申请号:US13137239

    申请日:2011-07-29

    摘要: Polyester composition produced without antimony compound as a polycondensation catalyst including, 30 ppm or less antimony, 0.5-50 ppm titanium, and 0.1-100 ppm phosphorus, the number density of titanium-containing particles having an equivalent circular diameter of 1 μm or more being less than 100/0.02 mg; and a composition as above, containing 0.1-5 wt % organic polymer particles which have an average particle diameter of 0.05-3 μm and contain 0.01% or less of coarse particles which have a diameter at least twice the average particle diameter. Polyester catalyst including a reaction product between at least one of Ti(OR)4 and Ti(OH)m(OR)4-m, wherein Rs may be the same or different and each represents a C2-C10 organic group, and m represents an integer of 1-4, and a ligand including nitrogen, sulfur, and/or oxygen as a donor atom, and capable of coordinating with two or more sites.

    摘要翻译: 不含锑化合物作为缩聚催化剂制备的聚酯组合物,包括30ppm或更少的锑,0.5-50ppm的钛和0.1-100ppm的磷,具有等于1μm或更大的等同圆直径的含钛颗粒的数密度为 小于100 / 0.02mg; 和如上所述的组合物,其含有0.1-5重量%的平均粒径为0.05-3μm的有机聚合物颗粒,并且含有0.01%或更少的直径至少为平均粒径的两倍的粗颗粒。 包括Ti(OR)4和Ti(OH)m(OR)4-m中的至少一种之间的反应产物的聚酯催化剂,其中Rs可以相同或不同,并且各自表示C2-C10有机基团,m表示 1-4的整数,以及包含氮,硫和/或氧作为供体原子的配体,并且能够与两个或更多个位点配位。

    Polyester composition and film made therefrom
    9.
    发明授权
    Polyester composition and film made therefrom 失效
    聚酯组合物和由其制成的薄膜

    公开(公告)号:US5474854A

    公开(公告)日:1995-12-12

    申请号:US256303

    申请日:1994-08-09

    IPC分类号: C08J5/18 C08L67/02 B32B27/36

    摘要: The invention is a polyester composition containing crosslinked polymer particles with ester bonds at the main chain. The particles are excellent in affinity to polyesters, and so the films formed from the polyester compositions do not have the particles falling off during high speed running, and do not have flaws in the film surfaces. The invention can prevent the generation of white powder and the flaws of magnetic faces caused by falling-off particles, and prevent the contamination in the production of films, even though these are problems caused when various conventional particles are added, and is especially suitable for use as products such as magnetic films.

    摘要翻译: PCT No.PCT / JP93 / 01631 Sec。 371日期1994年8月9日 102(e)日期1994年8月9日PCT提交1993年11月10日PCT公布。 出版物WO94 / 11438 日期:1994年5月26日。本发明是含有在主链上具有酯键的交联聚合物颗粒的聚酯组合物。 该颗粒对聚酯的亲和性优异,因此由聚酯组合物形成的膜不会在高速运行期间脱落,并且在膜表面没有缺陷。 本发明可以防止白色粉末的产生和由脱落颗粒引起的磁性面的缺陷,并且防止了膜的生成中的污染,即使这些是在添加各种常规颗粒时引起的问题,并且特别适用于 用作磁性膜等产品。