Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1986-12-01
1990-09-18
Henderson, Christopher
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C08F23618
Patent
active
049579916
ABSTRACT:
A chloroprene copolymer produced by radical copolymerization of 50 to 95% of chloroprene, 5 to 50% of at least one polyether (meth)acrylate of a specific formula, and 0 to 10% of any monomer copolymerizable with chloroprene, these percentages being by weight and based on the total quantity of monomers copolymerized, exhibits a remarkable combination of excellent oil resistance, weathering resistance, heat resistance, and coldness resistance. It was found that even when a polyether molecular chain has poor compatibility with chloroprene rubber, if this chain has an acryloyl or a methacryloyl group at one or both ends thereof, it can be copolymerized with chloroprene, and the resulting chloroprene copolymer processes and above mentioned combination of excellent properties.
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Hirashima Nobuhiro
Matsunaga Shiro
Nakata Mitsuyuki
Denki Kagaku Kogyo KK
Henderson Christopher
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