Curable composition, thermal latent acid catalyst, method of coa

Details Curable composition, thermal latent acid catalyst, method of coa Curable composition, thermal latent acid catalyst, method of coa

1994-08-29

1997-08-26

Wilson, D. R.

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

Synthetic resins

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

525169, 525170, 525175, 525176, 525206, 525208, 525209, 525212, 525217, 525220, 525221, 525223, 525437, 525438, 525440, 525444, 525446, C08L 6702, C08L 3302, C08L 3700, C08L 2900

Patent

active

056612192

ABSTRACT:
A curable composition comprising (A) a compound having in the molecule two or more specific blocked carboxyl groups: (B) a compound having in the molecule two or more reactive functional groups which can form chemical bonds with the blocked carboxyl groups, and (C) a catalytic component selected from the following: (a) a thermal latent acid catalyst which comprises a compound having a epoxy group, a specific compound having a sulfur atom and a specific Lewis acid; (b) a thermal latent acid catalyst which comprises a specific compound, having at least one of a nitrogen atom, an oxygen atom, a phosphorus atom or a sulfur atom, a specific compound having a halogen atom and a specific Lewis acid having at least one of an aluminum atom, a zinc atom or a tin atom; or a mixture which comprises (c) a metallic chelate compound and a specific organic silicon compound or a condensate thereof. A two component curable composition is prepared by mixing (I) a main material composition or a solution thereof comprising the compound (A) and the compound (B) or a self-crosslinkable compound (D), and (II) an acid catalyst or the solution comprising at least one of a Bronsted acid, a Lewis acid or a mixture of a metallic chelate compound and a compound having a silanol group. The curable composition provides cured products having excellent chemical properties and physical properties and having desirable weathering resistance, stain resistance and appearance.

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