Foam plastics sheet materials

Details Foam plastics sheet materials Foam plastics sheet materials

1979-07-10

1980-11-18

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428172, 428310, 427244, 8478, B32B 520

Patent

active

042346410

ABSTRACT:
Foam plastics sheet material, such as a wallcovering, has graduated color toning. The material comprises a substrate web having a pigmented base coat and a foam coat in which the pigment has migrated to the surface of the foam coat in varying degrees, or, in some areas, not at all.
The foam coat can have at least two thicknesses or can be applied to a pre-embossed substrate web.

REFERENCES:
patent: 3905849 (1975-09-01), Bomboire
patent: 3914485 (1975-10-01), Curtis
patent: 3931429 (1976-01-01), Austin
patent: 3978258 (1976-08-01), Faust et al.
patent: 4068030 (1978-01-01), Witman

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