Stable, anaerobically-hardening adhesives containing mixed...

Details Stable, anaerobically-hardening adhesives containing mixed... Stable, anaerobically-hardening adhesives containing mixed...

C - Chemistry, Metallurgy

08

K

402/125, 402/296

C08K 5/32 (2006.01) C09J 4/00 (2006.01)

Patent

CA 1216396

A B S T R A C T A stable, anaerobically-hardening adhesive system based on polymerizable methacrylates and acrylates which are free of peroxides and hydroperoxides and harden at an acceler- ated rate under anaerobic conditions having, for 100 parts by weight of said polymerizable methacrylates and acrylates, from 0.2 to 5 parts by weight of at least one organic amine oxide and from 0.2 to 10 parts by weight of at least one NH-acidic compound, as an initiator. Preferred among the amine oxides are those that contain two alkyl radicals with 1 to 12 carbon atoms in addition to one aromatic radical, which can also be substi- tuted. The new systems preferably contain, as NH-acidic compounds, sulfonic acid hydrazides, carboxylic acid hydrazides, sulfimides, disulfonyl imides or acyl cyanamides.

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