Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1976-06-09
1978-05-23
Hoag, Willard E.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
264 464, 264 48, 264129, 264245, 264259, 264293, 264321, 427244, 427258, 427336, 427278, 427374B, 428314, B29D 2700, B29C 2100, B29D 720
Patent
active
040911543
ABSTRACT:
A decorative synthetic resin sheet having formed on its surface, a three-dimensional multi-colored pattern including protuberances and depressions distinctly defined with a marked difference in elevation therebetween. The sheet has a smooth planar rear surface which ensures good adhesion to the desired surface. The sheet is made by a process comprising a first step of coating one surface of a thin base sheet of paper or like material with a main synthetic resin composition containing a blowing agent, drying the resulting coating layer by heating and thereafter delustering the surface of the coating layer with a suitable solvent; a second step of fully foaming the coating layer by heating, then by reheating only a surface of the foamed layer, after cooling and stabilizing the foamed layer, while leaving the unheated portion of said layer remote from said surface; a third step of hot-embossing the reheated foamed layer and cooling the embossed surface; and a fourth step of applying a synthetic resin composition containing a coloring agent only to the raised top surface of the resulting embossed pattern and cooling the sheet.
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Am. Modern Plastics Encyclopedia Charts, McGraw-Hill, N.Y. (1948).
Hoag Willard E.
Tokiwa Leather Industrial Co., Ltd.
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