Adhesive composition and process for preparing it

Details Adhesive composition and process for preparing it Adhesive composition and process for preparing it

1994-09-16

1996-12-31

Acquah, Samuel A.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 87, 528112, 528113, 528297, 528363, 528366, 525531, 525532, 525533, 558443, 549515, 549521, C08F28300

Patent

active

055895549

ABSTRACT:
An adhesive composition is here disclosed which comprises a 2-cyanoacrylate and at least one of compounds (a) and (b):
(a) an addition reaction product of an epoxy group and a compound having a cyano group and a carboxylic acid group in its molecule, and
(b) a compound having a cyano group and a carboxylic acid group in its molecule. A process for preparing the adhesive composition is also disclosed herein. According to the present invention, the 2-cyanoacrylate-based adhesive composition can be obtained which is excellent in storage stability and hardening properties of thick films and which has a high hardening rate and remarkably improved surface hardening properties of the adhesive composition itself bulged from between adherends. Particularly, the 2-cyanoacrylate bulged from between the adherends can harden rapidly, so that the vaporization of the 2-cyanoacrylate can be minimized. Therefore, even if the adhesive composition does not have a specific ester group such as an alkoxyalkyl group, an irritant odor and whitening can be reduced.

REFERENCES:
patent: 4171416 (1979-10-01), Motegi et al.
patent: 4377490 (1983-03-01), Shiraishi
patent: 4405750 (1983-09-01), Nakata et al.
patent: 4622414 (1986-11-01), McKervey
patent: 4837260 (1989-06-01), Sato et al.
patent: 5175337 (1992-12-01), Mikuni et al.
patent: 5290838 (1994-03-01), Mikuni et al.

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