Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1989-06-05
1992-09-29
Beck, Shrive
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
264109, 264128, 264343, 427369, 427439, 427440, 527103, 524702, B29C 6720
Patent
active
051512386
ABSTRACT:
Process for producing a composite material in which a cellulosic substrate is treated with a solution of a polyfunctional isocyanate in an aprotic swelling solvent and the substrate is then compressed to form the composite material. The substrate may take the form of wood chips, wood particles, wood flakes, wood fibers, wood flour, ground wood, wood veneers and wood laminates, paper, card, straw, refined cellulose such as cotton or viscose and plant fibers such as bamboo or palm fiber.
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"Mill Designed Around New Resin" Edited by Fraser, World Wood, Mar. 1980, p. 7.
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Redman et al., "Particleboard Binder Promises Performance . . . " Reprinted with Permission of Forest Industries, Apr. 1979.
Bayer"DESMODUR Trial Product PU 1520 E"; Technical Publication.
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"Bayer Polyurethanes", Bayer AG, pp. 6-9, 214-219.
Banks William B.
Earl Harold A.
Beck Shrive
National Research Development Corporation
Owens Terry J.
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