Coating processes – Nonuniform coating – Wrinkled or crackled coating
Patent
1975-06-11
1977-04-12
Hoffman, James R.
Coating processes
Nonuniform coating
Wrinkled or crackled coating
427379, 427385B, B05D 302, B05D 502, B05D 704
Patent
active
040174930
ABSTRACT:
A textured polyurethane surface is created from a vinyl substrate by first forming a smooth, uncured polyurethane coating on the substrate and then heating the thus coated substrate to a temperature between about 100.degree. and about 160.degree. C for 1 to 10 minutes followed by heating to temperatures of 170.degree. to 210.degree. C for 0.5 to 10 minutes. A textured surface may also be provided on a vinyl substrate having a previously cured polyurethane coating thereon by waiting at least about 1 week after the urethane coating has been cured and then heating the coated substrate to a temperature between about 140.degree. C and about 210.degree. C for 0.1 to 10 minutes. A preferred application is in the creation of textured surfaces on sheet vinyl floor and wall coverings coated with polyurethane.
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Chemical Abstracts, vol. 82: 100360d, Jan. 1975.
Ferment George R.
Skinner David B.
GAF Corporation
Hoffman James R.
Kehm Walter C.
Ward Joshua J.
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