B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
117/241, 9/59
B32B 27/12 (2006.01) D06N 7/00 (2006.01) D21H 13/14 (2006.01) D21H 13/40 (2006.01) D21H 17/37 (2006.01) D21H 17/45 (2006.01) D21H 17/67 (2006.01)
Patent
CA 1139164
DIMENSIONALLY STABLE BACKING MATERIALS FOR SURFACE COVERINGS AND METHODS OF MAKING THE SAME ABSTRACT OF THE DISCLOSURE A surface covering comprising: one or more layers of the same or different resinous polymeric compositions; and a dimensionally stable fibrous backing material in adhering contact therewith comprising: from about 30% by weight to about 77% by weight of selected proportions of overlapping, intersecting and intermatted polypropylene fibers, glass fibers and wood pulp fibers; from about 0.2% to about 2% by weight of a stable, water-soluble, cationic, quaternary mod- ified acrylamide polymer having a high charge density of from about 350 to about 600 or more milliequivalents/milli- gram of unit weight and a very high molecular weight of from about 3 million to about 8 million or more; from about 15% to about 60% by weight of a filler or loading agent; and from about 7% to about 27% by weight of a synthetic resinous polymeric binder, all percentages being based on the total weight of the dimensionally stable fibrous backing material. The disclosure also relates to methods of making such sur- face coverings comprising such a layer or layers of resinous polymeric compositions and such dimensionally stable fibrous backing materials.
359843
Congoleum Corporation
Macrae & Co.
LandOfFree
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