Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Separately introducing reacting materials into mold
Patent
1974-12-30
1976-09-21
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Separately introducing reacting materials into mold
264250, 264255, 264259, 264331, 264347, B29D 908, B29G 100
Patent
active
039819540
ABSTRACT:
A method of forming a polymer laminate which comprises mixing an unsaturated polyester resin with allyl melamine monomer; molding the mixture under heat and pressure to cause the allyl melamine to cross link the polyester chains and thereby produce a substrate; applying a melamine-formaldehyde glaze material to one face of the substrate; and heating the glazed substrate to effect polymerization and adherence of the glaze material on the substrate surface. The use of allyl melamine as the cross linking agent for the polyester prevents the glaze from cracking, blistering or peeling when subjected to heat, attack from household chemicals, or abrasion forces.
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patent: 3044913 (1962-07-01), Lundberg
patent: 3056760 (1962-10-01), D'Alelio
patent: 3305514 (1967-02-01), Tiffin et al.
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patent: 3562375 (1971-02-01), Guy et al.
patent: 3597425 (1971-08-01), Shaines
Wakeman, Chemistry of Commercial Plastics, Reinhold, N.Y., (1947), pp. 224-226 and 228-230.
Algieri Salvatore
Raudenbusch Werner Theodor
Weiss Jonas
American Standard Inc.
Crooks Robert G.
Hoag Willard E.
Salerno, Jr. James J.
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