Vulcanisable rubber mixes

Details Vulcanisable rubber mixes Vulcanisable rubber mixes

C - Chemistry, Metallurgy

08

K

C08K 5/5398 (2006.01) C08J 3/24 (2006.01) C08K 5/17 (2006.01) C08K 5/47 (2006.01)

Patent

CA 2332166

The present invention relates to vulcanisable rubber mixes which, apart from the rubbers, contain O,O-bis-(alkyl)-dithiophosphoric acid polysulfides and primary and/or secondary amines, which are characterised in that they may be vulcanised without release of nitrosamines with a high crosslink density and a high proportion of short sulfur bridges.

La présente invention concerne des mélanges de caoutchoucs vulcanisables qui, à part les caoutchoucs, renferment des polysulfures d'acide O,O-bis-(alkyl)-dithiophosphorique ainsi que des amines primaires et/ou secondaires, et se caractérisent par le fait qu'ils peuvent être vulcanisés sans entraîner de rejet de nitrosamines avec une forte densité de liaisons croisées et une forte proportion de ponts disulfure courts.

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