Low temperature curing corrosion resistant polyurethane coatings

Details Low temperature curing corrosion resistant polyurethane coatings Low temperature curing corrosion resistant polyurethane coatings

1975-02-18

1976-11-23

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775CR, 260 775AP, C08G 1832

Patent

active

039936279

ABSTRACT:
A low temperature curing polyurethane coating system of high solids content at any given viscosity is provided which enables the deposition of adherent corrosion resistant coatings having a desirable balance of hardness and flexibility by using a mixture of (1) a solution copolymer consisting essentially of from 55-85% styrene and monoethylenically unsaturated hydroxy functional monomer, the copolymer being in solution in a mixture of (A) inert water-free volatile organic solvent and (B) a bisphenol-based polyhydric alcohol, and (2) an organic polyisocyanate. The polyisocyanate is kept separate from the copolymer solution until the desired liquid mixture is formed and used.

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patent: 3375224 (1968-03-01), Cordier et al.
patent: 3376252 (1968-04-01), Peiser et al.
patent: 3391110 (1968-07-01), Coleman

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