Free-radical-vulcanised butadiene- - acrylonitrile elastomers

    公开(公告)号:DE1903519A1

    公开(公告)日:1970-08-06

    申请号:DE1903519

    申请日:1969-01-24

    Abstract: High-modulus elastomer has Shore-A durometer hardness 60-95, creep below 15%, a Mooney-viscosity, before vulcanisation, below 25%, contains a major proportion of butadiene-acrylonitrile copolymer rubber, and is hardened with a minor proportion of a highly reactive polyfunctional acrylate (I) that is not volatile at 121 degrees C and functions as crosslinking co-agent in free-radical vulcanisation. (I) may be trimethylolpropane-tri(meth)acrylate, pentaerythritoltetra(meth)acrylate, glyceroltrin(meth)acrylate, or trimethylolethanetri-(meth)acrylate, in proportion 1-30 parts of elastomer. Uses: cable and wire coatings that remain flexible down to -70C.

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