Primer composition

Details Primer composition Primer composition

1997-11-14

1999-02-02

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 76, 528 79, 525125, 525126, 525452, 525538, 525902, 524366, 524801, 524804, 524806, 524839, 524860, C08F 830

Patent

active

058666575

ABSTRACT:
In order to provide a general-purpose aqueous primer composition requiring no organic solvent and capable of improving adhesive strength and durability while ensuring an adequate application life required for the work of primer coating process, a primer composition according to the present invention contains (a) a modified polyisocyanate obtained by reaction of polyisocyanate; an emulsifying agent having an active hydrogen group reactable to an isocyanate group; and a silane coupling agent having an active hydrogen group reactable to an isocyanate group and (b) a core shell emulsion having a core layer of a rubbery polymer and a shell layer of a glassy polymer and having an active hydrogen group reactable to an isocyanate group in the core layer and/or the shell layer.

REFERENCES:
patent: 3779794 (1973-12-01), De Santis
Abstact of Japanese Patent Laid-open Publication No. 03-006274, Date of Publication: Jan. 11, 1991.
Patent Abstracts of Japan, Publication No. 06329925 A, Date of Publication: Nov. 29, 1994.
Abstract of Japanese Patent Laid-open Publication No. 3-6274 A, Date of Publication: Jan. 11, 1991.

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