Styrene resin material
    3.
    发明授权
    Styrene resin material 失效
    苯乙烯树脂材料

    公开(公告)号:US06451917B1

    公开(公告)日:2002-09-17

    申请号:US09581248

    申请日:2000-06-26

    IPC分类号: C08L2504

    摘要: The invention relates to a styrene resin material, especially a styrene-based resin composition having good high-speed castability and good spreadability and favorable to extrusion molding lines. Of the styrene-based resin material, the product of the melt index (MI, g/10 min) and the melt tension (MT, g) measured under a specific condition is at least 20. Concretely, for example, it is a styrene-based resin composition comprising (A) from 35 to 95% by weight of a styrenic polymer having a syndiotactic structure, (B) from 5 to 50% by weight of a specific polyethylenic resin, and (C) from 0 to 15% by weight (including 0) of a specific styrene-olefin copolymer.

    摘要翻译: 本发明涉及苯乙烯树脂材料,特别是具有良好的高速浇铸性和良好的铺展性以及有利于挤出成型生产线的苯乙烯基树脂组合物。 在苯乙烯类树脂材料中,在特定条件下测定的熔体指数(MI,g / 10min)和熔融张力(MT,g)的乘积为至少20.具体地,例如,它是苯乙烯 (A)35至95重量%的间同立构结构的苯乙烯聚合物,(B)5至50重量%的特定聚乙烯树脂,(C)0至15重量% 重量(包括0)的特定苯乙烯 - 烯烃共聚物。

    Laminate and self-adhesive tape
    5.
    发明授权
    Laminate and self-adhesive tape 失效
    层压板和自粘胶带

    公开(公告)号:US5283117A

    公开(公告)日:1994-02-01

    申请号:US817366

    申请日:1992-01-06

    摘要: There are disclosed a laminate comprising (a) a biaxially oriented film of a styrenic polymer having a high degree of syndiotactic configuration of 10 to 100 .mu.m in thickness and (b) a rubber-based self-adhesive layer of 5 to m in thickness and a self-adhesive tape comprising the above-mentioned laminate. The above laminate and self-adhesive tape are excellent in transparency, heat resistance, water resistance, moisture resistance, dispenser and hand cuttability, insulating properties and mechanical properties such as elasticity and nerve and can find a wide range of effective application.

    摘要翻译: 公开了一种层压体,其包含(a)具有10至100(my)m厚度的间同立构构型高度的苯乙烯聚合物的双轴取向膜,和(b)5至m的橡胶基自粘合层 以及包含上述层压体的自粘合带。 上述层叠体和自粘带在透明性,耐热性,耐水性,耐湿性,分配器和手动切割性,绝缘性能和机械性能如弹性和神经方面都是优异的,并且可以找到广泛的有效应用。

    Photographic film of syndiotactic styrene polymer
    6.
    发明授权
    Photographic film of syndiotactic styrene polymer 失效
    间同立构苯乙烯聚合物的摄影膜

    公开(公告)号:US5188930A

    公开(公告)日:1993-02-23

    申请号:US800762

    申请日:1991-12-02

    IPC分类号: G03C1/795

    CPC分类号: G03C1/795

    摘要: A photographic film which comprises (A) a stretched film of a styrene polymer having a syndiotactic configuration or a composition containing it, wherein thickness is 20 to 500 .mu.m, haze is not more than 3% and moisture expansion coefficient is not more than 1.times.10.sup.-6 /% RH, and (B) a photosensitive layer, which is light and excellent in mechanical properties, is disclosed.

    摘要翻译: 一种照相胶片,其包含(A)具有间同立构构型的苯乙烯聚合物的拉伸膜或含有它的组合物,其中厚度为20至500μm,雾度不大于3%,水分膨胀系数不大于1×10 -6 /%RH,和(B)光敏层,其光学性能和机械性能优异。

    Styrenic resin composition and polystyrene oriented film
    8.
    发明授权
    Styrenic resin composition and polystyrene oriented film 失效
    苯乙烯树脂组合物和聚苯乙烯取向膜

    公开(公告)号:US5798172A

    公开(公告)日:1998-08-25

    申请号:US682570

    申请日:1996-07-29

    摘要: The present invention relates to a styrenic resin composition which comprises 90 to 99.99% by weight of a styrenic polymer having a high degree of syndiotctic configuration (SPS) and 0.01 to 10% by weight of a spherical aluminosilicate having pH in the range of 5 to 11; a polystyrene oriented film which comprises the above styrenic resin composition molded into an oriented film; a styrenic resin composition which comprises 99.2 to 99.95% by weight of a styrenic polymer having a high degree of syndiotactic configuration and 0.05 to 0.8% by weight of a spherical regular elastomer having an average grain size in the range of 0.1 to 3 .mu.m, and which has a melt index at 300.degree. C. under 2.16 kg load being in the range of 1 to 50; and a polystyrene oriented film which comprises the above styrenic resin composition molded into an oriented film. According to the present invention, there are provided styrenic resin compositions each being excellent in melt-heat-stability, minimized in the generation of white powders at the time of continuous film forming and capable of producing oriented films that are favorable in slipperiness, dielectric breakdown voltage (AC), tear strength and the like; and polystyrene oriented films useful as a variety of base materials for films.

    摘要翻译: PCT No.PCT / JP95 / 02420 Sec。 371日期:1996年7月29日 102(e)日期1996年7月29日PCT提交1995年11月28日PCT公布。 WO96 / 17889 PCT公开号 日期1996年6月13日本发明涉及一种苯乙烯树脂组合物,其包含90至99.99重量%的具有高度间歇配置(SPS)的苯乙烯聚合物和0.01至10重量%的具有pH值的球形硅铝酸盐 范围5到11; 聚苯乙烯取向膜,其包含上述苯乙烯树脂组合物模制成取向膜; 苯乙烯树脂组合物,其包含99.2〜99.95重量%的具有高间隔构型的苯乙烯类聚合物和0.05〜0.8重量%的平均粒径在0.1〜3μm范围内的球形正常弹性体, 在2.16kg负荷下,在300℃下的熔体指数在1至50的范围内; 和聚苯乙烯取向膜,其包含上述苯乙烯树脂组合物模制成取向膜。 根据本发明,提供了苯乙烯树脂组合物,其各自具有优异的熔融热稳定性,在连续成膜时产生白色粉末最小化,并且能够生产有利于滑爽性,介电击穿的取向膜 电压(AC),撕裂强度等; 和聚苯乙烯取向膜可用作各种各样的薄膜基材。

    Magnetic recording medium
    9.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US5374462A

    公开(公告)日:1994-12-20

    申请号:US651262

    申请日:1991-04-04

    IPC分类号: G11B5/73 B32B3/02 G11B5/66

    摘要: A magnetic recording medium having a magnetic layer on at least one side of a base film which is a stretched film of styrene polymer having a high degree of syndiotactic configuration or a composition thereof or a laminate film containing the stretched film, wherein linear expansion coefficient is not more than 5.times.10.sup.-5 /.degree. C. and static friction coefficient is not less than 0.3 and not more than 1.0 is disclosed.The magnetic recording medium has good sliding properties, smoothness, heat resistance and moisture resistance, is excellent in dimensional stability to temperature and moisture, and has good coersive force, thus can be highly densified.

    摘要翻译: PCT No.PCT / JP90 / 01104 Sec。 371日期:1991年4月4日 102(e)1991年4月4日PCT PCT 1990年8月30日PCT公布。 出版物WO91 / 03810 日本1991年3月21日。一种在具有高度间同立构构型的苯乙烯聚合物的拉伸膜或其组成的基膜的至少一侧上具有磁性层的磁记录介质或含有拉伸 膜,其中线膨胀系数不大于5×10 -5 /℃,静摩擦系数不小于0.3且不大于1.0。 磁记录介质具有良好的滑动性,平滑性,耐热性和耐湿性,对温度和湿度的尺寸稳定性优异,具有良好的凝聚力,因此可以高度致密化。