Stabilization of highly heat distortion resistant polycarbonates
    3.
    发明授权
    Stabilization of highly heat distortion resistant polycarbonates 失效
    高耐热变形聚碳酸酯的稳定化

    公开(公告)号:US5194467A

    公开(公告)日:1993-03-16

    申请号:US816918

    申请日:1992-01-03

    IPC分类号: C08K5/5435

    CPC分类号: C08K5/5435

    摘要: Highly heat distortion resistant moulding compositions are disclosed comprising an aromatic polycarbonate having molecular weights Mw (weight average) of a least 10,000, containing bifunctional carbonate structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.12 -aralkyl,m stands for an integer from 4 to 7,R.sup.3 and R.sup.4, which are selected individually for each X, denote, independently of one another, hydrogen or C.sub.1 -C.sub.6 -alkyl, andX denotes carbonunder the condition that R.sup.3 and R.sup.4 are both alkyl on at least one X atom andas the only thermo stabilizer, from 0.001 to 1% by weight of a siloxane corresponding to formula (II) ##STR2## wherein R and R' denote, independently of one another, C.sub.1 -C.sub.4 -alkyl or -aryl andx and y stand for the numbers 1,2 or 3 and x+y always add up to 4.

    摘要翻译: 公开了耐热变形性模塑组合物,其包含具有至少10,000的分子量Mw(重均分子)的芳族聚碳酸酯,其含有对应于式(Ia)的双官能碳酸酯结构单元,其中R1和R2独立地表示 另一个是氢,卤素,C 1 -C 8 - 烷基,C 5 -C 6 - 环烷基,C 6 -C 10 - 芳基或C 7 -C 12 - 芳烷基,m代表4-7的整数,R3和R4分别为 每个X彼此独立地表示氢或C 1 -C 6 - 烷基,X表示碳,在R 3和R 4均为至少一个X原子上为烷基且仅为热稳定剂的情况下,为0.001至1% 重量的对应于式(II)的硅氧烷(II)其中R和R'彼此独立地表示C 1 -C 4 - 烷基或 - 芳基,x和y表示数字1,2或3 并且x + y总是最多为4。

    Wood or wood product coated with an aqueous, air-drying coating agent
    4.
    发明授权
    Wood or wood product coated with an aqueous, air-drying coating agent 失效
    木制或木制产品,涂有水性空气干燥涂料

    公开(公告)号:US5089342A

    公开(公告)日:1992-02-18

    申请号:US653020

    申请日:1991-02-08

    摘要: An improved aqueous coating agent for providing a decorative and protective coating for wood or wood products contains as a binder polyacrylate resins having chemically incorporated therein air-drying, unsaturated fatty acid moieties and quaternary ammonium moieties, and said agent is prepared by reactingA) excess polyacrylates containing epoxide groups and having an epoxide group equivalent weight of 200 to 1,300 withB) drying fatty acids, in an addition reaction with ester formation,C) reacting at least some of the remaining epoxide groups in the A)-B) reaction product with monoamine ammonium salts which contain an N-H bond in an addition reaction, anddissolving the reaction product obtained from step C) and containing quaternary ammonium groups in water.

    摘要翻译: 用于提供用于木材或木制品的装饰性和保护性涂层的改进的水性涂料包含作为粘合剂的聚丙烯酸酯树脂,其具有化学结合在其中的空气干燥,不饱和脂肪酸部分和季铵部分,并且所述试剂通过使A)过量 含有环氧基团的聚丙烯酸酯,其环氧基团当量为200至1,300,B)在与酯形成的加成反应中干燥脂肪酸,C)使A)-B)反应产物中的至少一些剩余环氧基反应 在加成反应中含有NH键的单胺铵盐,并将从步骤C)得到的反应产物溶解并含有季铵基团。

    Optical fibres based on polycarbonate fibres, and a process for the
production thereof
    8.
    发明授权
    Optical fibres based on polycarbonate fibres, and a process for the production thereof 失效
    基于聚碳酸酯纤维的光纤及其制造方法

    公开(公告)号:US4919514A

    公开(公告)日:1990-04-24

    申请号:US294079

    申请日:1989-01-05

    摘要: A process for the production of optical fibers based on aromatic polycarbonates wherein the polycarbonate fibres are coated with a plastic, the improvement which comprises(a) to coat the fiber with an UV irradiation-polymerizable mixture which comprises(A) 25 to 75% by weight, based on the total weight of the polymerizable compounds, of a polyfunctional (meth)acrylic acid derivative of the formula ##STR1## (B) 75 to 25% by weight, based on the total weight of the polymerizable compounds, of a monofunctional (meth)acrylate of the formula ##STR2## (C) 0.1 to 10% by weight, based on the total weight of the polymerizable compounds, of a photoinitiator, and(b) to polymerize this mixture on the fibre by UV irradiation.

    摘要翻译: 一种用于生产基于芳族聚碳酸酯的光纤的方法,其中聚碳酸酯纤维用塑料涂覆,其改进包括(a)用UV辐射可聚合混合物涂覆纤维,所述混合物包含(A)25至75% 基于可聚合化合物的总重量,基于总重量的75至25重量%的式(I)+ TR(IMA)(B)的多官能(甲基)丙烯酸衍生物 的可聚合化合物,式(III)(C)的单官能(甲基)丙烯酸酯占基于可聚合化合物的总重量的0.1至10重量%的光引发剂,和(b)至 通过紫外线照射在纤维上聚合该混合物。

    Active compound release systems
    10.
    发明授权
    Active compound release systems 失效
    活性化合物释放系统

    公开(公告)号:US4661104A

    公开(公告)日:1987-04-28

    申请号:US681976

    申请日:1984-12-14

    摘要: In a therapeutic system such as a plaster for administration of an active compound through the skin and comprising a covering layer which is essentially impermeable to the active compound, an active compound reservoir layer and a protective layer which can be pulled off and which is essentially impermeable to the active compound, the improvement wherein the reservoir layer contain about 1-30% of active compound in an elastomer mixture comprising a predominantly amorphous olefinic (co)polymer with a glass transition temperature of

    摘要翻译: 在诸如用于通过皮肤施用活性化合物的石膏的治疗系统中,包括基本上不可渗透活性化合物的覆盖层,活性化合物储存层和可以被拉出并且基本上不渗透的保护层 对活性化合物的改进,其中储层在含有玻璃化转变温度<20℃的主要是无定形烯烃(共)聚合物的弹性体混合物中含有约1-30%的活性化合物,与0混合 至约50重量%的聚异丁烯,聚丁二烯油和/或石蜡油,以及增粘树脂。 因此,活性化合物可以在更长的时间内以相对大的量调节释放。