Process for producing a chemical bond between molding...

Details Process for producing a chemical bond between molding... Process for producing a chemical bond between molding...

C - Chemistry, Metallurgy

08

J

18/1179, 154/105

C08J 5/12 (2006.01) B32B 25/08 (2006.01) C09J 123/16 (2006.01)

Patent

CA 1316089

23443-373 ABSTRACT OF THE DISCLOSURE Disclosed is a process for bonding a thermoplastic polyphenylene ether (PPE) containing polymer and a rubber by covulcanization, the process comprising the steps of heating and covulcanizing the PPE-containing polymer and the rubber. The rubber comprises: (a) 100 parts by weight of a rubber component comprising 100-20 wt.% of an EP(D)M rubber and 0.80 wt.% of a styrene-butadiene rubber obtained by emulsion polymerization, (b) 100-300 parts by weight of loading material, (c) 1-10 parts by weight of a peroxide vulcanization agent, and (d) 0.5-4 parts by weight of a vulcanization activator. The PPE-containing polymer may contain, in addition to the polyphenylene ether, up to 20 parts by weight (per 100 parts of PPE) of polyalkenylene and/or up to 100 parts by weight (per 100 parts of PPE) of a styrene polymer. The PPE-containing polymer and the rubber can be permanently bonded. The product can take various shapes, such as boards, tubes, and so on.

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