Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles
Patent
1990-10-02
1992-12-15
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Stratified or layered articles
264256, 264DIG31, 264DIG57, B29C 3910, B32B 314
Patent
active
051714973
ABSTRACT:
A method for manufacturing a panel in which a base sheet having adhesive or all or selected parts of a surface thereof. Small stones are applied to the base sheet and a water absorbing polymer is also applied. A hardening material, such as center, is spread over the stones and the polymer. The polymer absorbs the water of the cement and expands. It is thereafter washed off or allowed to evaporate.
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patent: 3378617 (1968-04-01), Elmendorf
patent: 3390496 (1968-07-01), Weiner et al.
patent: 3496264 (1970-02-01), Grant
patent: 4466937 (1984-08-01), Johnston et al.
patent: 4784821 (1988-11-01), Leopold
patent: 4915888 (1990-04-01), Sato
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