Protective barrier coating for styrofoam using an unsaturated th

Details Protective barrier coating for styrofoam using an unsaturated th Protective barrier coating for styrofoam using an unsaturated th

1987-08-04

1988-03-08

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

427203, 4274121, 4283193, 4283197, 428519, 428520, B32B 326, B32B 516, B32B 704

Patent

active

047299193

ABSTRACT:
A coating for polystyrene foam products is set forth. The coating has the preferred form of a first latex layer of copolymer of butadiene with either styrene or vinylidene chloride or both mixed with a fine aggregate such as silica flour or fly ash and a top layer made of one or more strata of a thermosetting resin. This resin is a thermosetting mixture of ethylenically unsaturated monomers and/or one or more of:

REFERENCES:
patent: 3256133 (1966-06-01), Wright et al.
patent: 3583884 (1971-06-01), Baum
patent: 4451529 (1984-05-01), Kerr, III et al.
patent: 4555292 (1985-11-01), Thompson

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