Rheology low gloss, high impact strength powder coating resins

Details Rheology low gloss, high impact strength powder coating resins Rheology low gloss, high impact strength powder coating resins

1987-11-30

1989-05-30

Jacobs, Lewis T.

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

Synthetic resins

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

525529, 525531, 525934, C08G 5916

Patent

active

048352284

ABSTRACT:
Novel advanced epoxy resins are disclosed which are the product resulting from (I) polymerizing in the presence of a catalytic quantity of a suitable polymerization catalyst (A) the reaction product of (1) a mixture consisting of (a) a diglycidyl ether of a dihydric phenol or a diglycidyl ether of a dihydric cyclohexanol and (b) a diglycidyl ether of a mono-, di- or polyetherdiol with (2) a compound containing both a group reactive with an epoxide group and a polymerizable ethylenically unsaturated group; with (B) a monomer mixture containing (1) at least one vinyl aromatic monomer, (2) a compound containing both a group reactive with an epoxide group and a polymerizable ethylenically unsaturated group and optionally (3) a hydroxyalkyl acrylate or methacrylate or an alkyl acrylate or methacrylate; and (II) advancing in the presence of a catalytic quantity of a suitable advancement catalyst, the product from (I) with (C) a dihydric phenol.

REFERENCES:
patent: 4285847 (1981-08-01), Ting
patent: 4308185 (1981-12-01), Evans et al.
patent: 4315044 (1982-02-01), Elmore et al.
patent: 4399242 (1983-08-01), Fowler et al.
patent: 4526940 (1985-07-01), Seymour et al.
Detroit Society for Paint Technology, "Powder Coating:Why-When-How", Journal of Paint Technology, vol. 44, No. 565, 2/1972, pp. 30-37.

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