Porous polymeric material containing a reinforcing and heat-seal

Details Porous polymeric material containing a reinforcing and heat-seal Porous polymeric material containing a reinforcing and heat-seal

1983-11-21

1984-09-25

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428200, 428211, 428246, 428283, 428286, 428287, 4283166, 428913, 15118, A47L 1316, A47L 1700, B32B 300, B32B 522

Patent

active

044736118

ABSTRACT:
A highly porous polymeric material which may be dry or contain an included liquid, for example, a cleaning composition, is reinforced and rendered heat-sealable by the incorporation of thermoplastic fibrous, particulate or foraminous material. The polymeric material is preferably a styrene homo- or copolymer prepared by polymerization of a high-internal-phase emulsion. Sheets of the porous polymer may be sandwiched between two liquid-permeable substrate layers to form a wiping cloth or the like.

REFERENCES:
patent: Re27444 (1972-07-01), Will
patent: 3734867 (1973-05-01), Will

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