1,3-Butadiene → Styrene

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Reaction Steps

The rubber latex used as component (1) in the present invention is selected from those which are generally used as a treating agent for rubber-reinforcing fibers. Examples of the rubber latex include vinylpyridine-styrene-butadiene terpolymer latex (to be referred to as "VP latex" hereinafter), styrene-butadiene copolymer latex (to be referred to as "SBR latex" hereinafter), acrylonitrile-butadiene copolymer latex, chloroprene latex and butadiene rubber latex. These latexes may be used alone or in combination. Particularly preferred are VP latex and SBR latex. The VP latex is preferably a copolymer obtained by copolymerizing vinylpyridine, styrene and butadiene in a vinylpyridine:styrene:butadiene weight ratio of 10-20:10-20:60-80. This VP latex is preferably selected from commercial products such as Nipol 2518FS (trade name, supplied by Nippon Zeon Co., Ltd.), JSR 0650 (trade name, supplied by Japan Synthetic Rubber Co., Ltd.) and Pyratex (trade name, supplied by Sumitomo-Dow Co., Ltd). The SBR latex is preferably a copolymer obtained by copolymerizing styrene and butadiene in a styrene:butadiene weight ratio of 10-40:60-90. This SBR latex is preferably selected from commercial products such as JSR 2108 (trade name, supplied by Japan Synthetic Rubber Co., Ltd.), Nipol LX112 (trade name, supplied by Nippon Zeon Co., Ltd.) and Baystal S60 (trade name supplied by Bayer AG).

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