.alpha.-cyanoacrylate adhesive composition

Details .alpha.-cyanoacrylate adhesive composition .alpha.-cyanoacrylate adhesive composition

1996-08-20

1998-04-14

Jagannathan, Vasu

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524556, 524560, 524564, 524492, 524833, 524850, 524853, 524854, C08K 516

Patent

active

057392056

ABSTRACT:
An .alpha.-cyanoacrylate adhesive composition having high thixotropy, excellent stability with age including difficulty of separation and excellent adhesiveness, for use of rubbers, plastics, metals or so, comprises (b) 10 through 20 parts by weight of polymers containing alkyl methacrylate having a weight average molecular weight of 100,000 through 300,000, (c) 2 through 20 parts by weight of ultrafine anhydrous silica, and (d) 0.001 through 20 parts by weight of quick curing additives represented by the formula (1), (b)-(d) being on the basis of (a) 100 parts by weight of .alpha.-cyanoacrylates: ##STR1## wherein X.sub.1 is a hydrogen atom or methyl group; X.sub.2 is a hydrogen atom, methyl group or cyano group; X.sub.3 is R.sub.2 or R.sub.2 CO in which R.sub.2 represents a hydrocarbon residue containing no anionically polymerizable group; and l, m and n are integers and (l+m).gtoreq.1 and n.gtoreq.1.

REFERENCES:
patent: 4845151 (1989-07-01), Sivy

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