Moisture vapor transmitting film of polyurethane blended with an

Details Moisture vapor transmitting film of polyurethane blended with an Moisture vapor transmitting film of polyurethane blended with an

1983-07-12

1984-06-05

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

128156, 4283157, 4283173, 4283177, 428338, 428343, B32B 326, B32B 2740

Patent

active

044528450

ABSTRACT:
A moisture vapor transmitting film comprising a blend of polyurethane and an incompatible polymer characterized in that the incompatible polymer forms a discrete phase within a continuous matrix of polyurethane and that said film contains voids and processes for the manufacture thereof.

REFERENCES:
patent: 3426754 (1969-02-01), Bierenbaum
patent: 3536638 (1970-10-01), Dosmann
patent: 3646178 (1972-02-01), Traubel et al.
patent: 3844865 (1974-10-01), Elton et al.
patent: 3870593 (1975-03-01), Elton et al.
patent: 3932682 (1976-01-01), Loft et al.
patent: 3975316 (1976-08-01), Villa
patent: 3993618 (1976-11-01), Muck et al.
patent: 4133310 (1979-01-01), Lloyd et al.

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