Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1979-05-07
1980-12-30
Lawrence, Evan K.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
427244, 428159, 428160, 428195, 428207, 428210, 428313, 428315, B32B 326
Patent
active
042423970
ABSTRACT:
Flexible, sheet-type covering material having a porous mat substrate with a layer of mechanically frothed and crushed, heat cured, foamed thermoplastic vinyl polymer adhered to the substrate.
REFERENCES:
patent: 3607341 (1971-09-01), Goins et al.
Ferment George R.
Woerner Douglas C.
GAF Corporation
Kehm Walter C.
Lawrence Evan K.
Ward Joshua J.
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