Blends comprising chlorinated polyvinyl chloride and chlorinated polyethylene
    2.
    发明授权
    Blends comprising chlorinated polyvinyl chloride and chlorinated polyethylene 失效
    包含氯化聚氯乙烯和氯化聚乙烯的混合物

    公开(公告)号:US3459692A

    公开(公告)日:1969-08-05

    申请号:US3459692D

    申请日:1966-04-21

    Abstract: A composition comprises (i) from 0.5 to 25 parts by weight of an after-chlorinated polyethylene having a relative viscosity of of 1.5 to 18 and a chlorine content of from 20 to 60% by weight, and (ii) from 99.5 to 75 parts by weight of an after-chlorinated stereoregular polyvinylchloride having a relative viscosity of 1.5 to 6.5 and a chlorine content of from 58 to 71% by weight, the chlorine atoms of the after-chlorinated polyvinyl chloride originally being 55 to 85% syndiotactically arranged. Other components of the composition may be: polyvinyl acetate, polyethylene, polyacrylonitrile, lubricants, e.g. low molecular weight polyethylene or barium cadmium stearate, stabilizers, pigments, dyestuffs, fillers, and light-protection agents, e.g. phosphorous acid esters. The chlorination of polyvinyl chloride in suspension, using a swelling agent, excess chlorine, and ultra-violet light, is described in the examples. In comparative Examples 5-8, an after-chlorinated atactic polyvinyl chloride is used in place of the stereoregular polymer. The compositions may be formed into shaped elements or coatings.

    Method for metallizing plastics
    5.
    发明授权
    Method for metallizing plastics 失效
    金属化塑料的方法

    公开(公告)号:US3616296A

    公开(公告)日:1971-10-26

    申请号:US3616296D

    申请日:1969-12-31

    CPC classification number: C23C18/285

    Abstract: Improved process for metallizing various plastic materials, including shaped vinyl chloride polymer and acrylonitrilebutadiene-styrene polymer articles, which includes using as the sensitizing solution in the known metallization process a solution which contains at least one tin IV salt dissolved therein in addition to the tin II and other conventional components. The sensitizing solution is itself disclosed and claimed.

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