High pressure laminates made with paper containing cellulose ace

Details High pressure laminates made with paper containing cellulose ace High pressure laminates made with paper containing cellulose ace

1995-12-07

1998-06-16

Yamnitzky, Marie

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having a component wherein a constituent is liquid...

428503, 428508, 428511, 428527, 428530, 428535, 428536, 4285375, 162146, 1621576, 442412, 264319, 264324, 1563082, 156310, 156311, B32B 2306, B32B 3120

Patent

active

057667527

ABSTRACT:
A high pressure laminate is made of several layers of paper, including from bottom to top core sheets, a decor sheet and an overlay sheet. The core sheets are either composed of cellulose fibers or composed of 30 to 90 weight percent cellulose acetate fibers and 70 to 10 weight percent cellulose fibers. The core sheets are respectively coated with either a lamination polymer or a plasticizer. The decor sheet is composed of a mixture and a conventional amount of paper making dye. The mixture comprises 30 to about 90 weight percent cellulose acetate fibers, 10 to 70 weight percent cellulose fibers and 0 to 20 weight percent fillers. The decor sheet is coated with a plasticizer. The overlay sheet is composed of cellulose fibers and is coated with a lamination polymer. Upon application of heat and pressure to the several layers a laminate is formed having thermoplastic properties, improved postformability and a significant reduction in the release of volatile organics during formation.

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Derwent Abstract WPI Acc. No. 75-69459W/42 (Japanese Patent Kokai 124,172/74--Nov. 27, 1974).
A. Sharipdzhanov et al., Plast. Massy., 4, pp. 24-25 (1992).

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