Powdery adhesive and process for preparation thereof

Details Powdery adhesive and process for preparation thereof Powdery adhesive and process for preparation thereof

1989-02-13

1990-09-25

Kight, III, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523407, 523414, 523420, 523466, 528 88, 528 93, 528111, 528118, 528119, 528124, 428403, 428407, C08L 6310

Patent

active

049593986

ABSTRACT:
A powdery adhesive comprised of spherical particles comprising 40 to 90 parts by weight of an epoxy resin component, 10 to 60 parts by weight of a rubber component and a latent curing agent contained inside the particles, the average particle size of the particles being from 0.1 to 500 .mu.m. The powdery adhesive may be prepared by a process comprising a step of preparing a compatible mixture comprising an epoxy resin component, a rubber component and a common organic solvent, a step of emulsifying or suspending the compatible mixture in an aqueous medium to form spherical particles, and a step of causing a phase separation of the epoxy resin component and the rubber component in the spherical particles.

REFERENCES:
patent: 4435543 (1984-03-01), Ema et al.
patent: 4588617 (1986-05-01), ///
patent: 4732961 (1988-03-01), ///
patent: 4752528 (1988-06-01), ///

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