Polycarbonate composition resistant to gamma radiation
    31.
    发明授权
    Polycarbonate composition resistant to gamma radiation 失效
    耐γ辐射的聚碳酸酯组合物

    公开(公告)号:US06197853B1

    公开(公告)日:2001-03-06

    申请号:US09346238

    申请日:1999-07-01

    IPC分类号: C08K515

    CPC分类号: C08K5/1565 C08L69/00

    摘要: A thermoplastic polycarbonate molding composition having improved resistance to gamma radiation-induced yellowing is disclosed. Particularly suitable for the manufacture of devices geared for medical applications, the composition contains an additive amount of a stabilizing compound conforming structurally to where R1 denotes a C1-30-alkyl group and R2 denotes an aryl radical.

    摘要翻译: 公开了具有改进的抗γ辐射诱导黄变性的热塑性聚碳酸酯模塑组合物。 该组合物特别适合用于医疗应用的装置的制造,该组合物含有结构上符合结构的添加量的稳定化合物,其中R1表示C1-30烷基,R2表示芳基。

    Flame retardant polycarbonate composition
    32.
    发明授权
    Flame retardant polycarbonate composition 有权
    阻燃聚碳酸酯组合物

    公开(公告)号:US06180702B2

    公开(公告)日:2001-01-30

    申请号:US09371137

    申请日:1999-08-09

    IPC分类号: C08K542

    摘要: A thermoplastic molding composition comprising polycarbonate resin and additive, positive, amounts of stabilizer and salt is disclosed. The composition is characterized by its freedom from splay and by its improved flame retardance. The stabilizer of the invention is a physical mixture of poly(alkyl methacrylate) with fluorinated polyolefin, and the salt is an alkali metal or alkaline earth metal salt of perfluoroalkane sulfonic acid, aromatic sulfimide, or aromatic sulfonic acid.

    摘要翻译: 公开了一种包含聚碳酸酯树脂和添加剂的热塑性模塑组合物,其量为稳定剂和盐。 该组合物的特征在于其不受喷射和其改善的阻燃性。 本发明的稳定剂是聚(甲基丙烯酸烷基酯)与氟化聚烯烃的物理混合物,该盐是全氟烷基磺酸,芳香族磺酰亚胺或芳族磺酸的碱金属或碱土金属盐。

    Polycarbonate compositions having mold-release properties
    35.
    发明授权
    Polycarbonate compositions having mold-release properties 失效
    具有脱模性能的聚碳酸酯组合物

    公开(公告)号:US5596034A

    公开(公告)日:1997-01-21

    申请号:US524820

    申请日:1995-09-07

    CPC分类号: C07C69/675 C08K5/103

    摘要: A thermoplastic molding composition having improved release properties is disclosed. The composition contains a polycarbonate resin and a mold release agent which is an ester conforming structurally to ##STR1## where R is a member selected from the group consisting of glyceryl, trimethylol propyl and pentaerythrityl radicals, m is 2 to 4, R' is a C.sub.8-20 hydrocarbon radical having a pendant alkyl group, and R" is the esterification residue of a C.sub.1-24 aliphatic or an aromatic carboxylic acid.

    摘要翻译: 公开了具有改进的脱模性能的热塑性模塑组合物。 该组合物含有聚碳酸酯树脂和脱模剂,其是在结构上与R [OCOR'OCOR“] m一致的酯,其中R是选自甘油基,三羟甲基丙基和季戊四烯基的成员,m是2至 4,R'是具有烷基侧基的C8-20烃基,R“是C1-24脂肪族或芳香族羧酸的酯化残基。

    Melt-stable, pigmented polycarbonate composition
    36.
    发明授权
    Melt-stable, pigmented polycarbonate composition 失效
    熔融稳定的着色聚碳酸酯组合物

    公开(公告)号:US5405892A

    公开(公告)日:1995-04-11

    申请号:US263702

    申请日:1994-06-22

    IPC分类号: C08K5/5435 C08K5/15

    CPC分类号: C08K5/5435

    摘要: A melt-stable, pigmented thermoplastic molding composition is disclosed. Accordingly, to the composition which contains polycarbonate resin and pigment there is imparted an improved level of melt stability upon the incorporation therewith of an additive amount of a melt stabilizer conforming to ##STR1## where R.sub.1, R.sub.2, R.sub.3 and n are defined. In an additional embodiment the invention relates to a color concentrate containing polycarbonate resin, up to 30% of a pigment and an effective amount of said stabilizer.

    摘要翻译: 公开了一种熔融稳定的着色热塑性模塑组合物。 因此,对于含有聚碳酸酯树脂和颜料的组合物,在加入其中定义符合R 1,R 2,R 3和n的添加量的符合“IMAGE”的熔体稳定剂的情况下,赋予了改善的熔体稳定性水平。 在另一个实施方案中,本发明涉及含有聚碳酸酯树脂的颜色浓缩物,高达30%的颜料和有效量的所述稳定剂。

    Flame retardant polycarbonate composition having improved impact strength
    37.
    发明授权
    Flame retardant polycarbonate composition having improved impact strength 失效
    阻燃聚碳酸酯组合物具有改善的冲击强度

    公开(公告)号:US5124377A

    公开(公告)日:1992-06-23

    申请号:US693488

    申请日:1991-04-30

    IPC分类号: C08K5/3417 C08L69/00

    CPC分类号: C08K5/3417 C08L69/00

    摘要: A thermplastic molding composition is disclosed which contains a homogeneous blend of a polycarbonate resin, an olefin-acrylate rubber terpolymer impact modifier and a flame retardant package which contains a fluorinated polyolefin, a halogenated phthalimide and an oligomeric carbonate. The composition was found to be suitable for preparing molded articles having an excellent level of flame resistance and impact properties.

    摘要翻译: 公开了一种热塑性模塑组合物,其包含聚碳酸酯树脂,烯烃 - 丙烯酸酯橡胶三元共聚物抗冲改性剂和含有氟化聚烯烃,卤代邻苯二甲酰亚胺和低聚碳酸酯的阻燃剂包的均匀混合物。 发现该组合物适于制备具有优异的阻燃性和冲击性能的模制品。

    Ultraviolet stabilizer for polycarbonate compositions
    38.
    发明授权
    Ultraviolet stabilizer for polycarbonate compositions 失效
    聚碳酸酯组合物的紫外线稳定剂

    公开(公告)号:US5086097A

    公开(公告)日:1992-02-04

    申请号:US638462

    申请日:1991-01-07

    IPC分类号: C08K5/16 C08K5/3475 C08L69/00

    CPC分类号: C08K5/3475

    摘要: A thermoplastic molding composition comprising a polycarbonate resin and a benzotriazole ortho carbonate having an improved level of resistance to deterioration caused by exposure to ultraviolet radiation is disclosed. The ultraviolet stabilizer of the invention conforms to ##STR1## wherein R.sub.1 denotes a hydrogen or a halogen atom or a C.sub.1-4 alkyl or alkoxy group,R.sub.2 and R.sub.3 independently represent a hydrogen atom, a C.sub.1-12 alkyl, a C.sub.1-4 alkoxy group, a phenyl or a phenoxy radical, andR.sub.4 denotes a C.sub.1-12 alkylene or a C.sub.6-30 arylene group. The composition is suitable for the preparation of molded articles having an improved level of resistance to ultraviolet radiation.