Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1988-06-17
1989-07-18
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
528 59, 528 61, C08G 1814
Patent
active
048494585
ABSTRACT:
A hydrophilic, segmented polyether polyurethane-urea that exhibits an increase in tensile strength and elongation when wet with water and is capable of forming visually clear films permeable to water vapor is disclosed.
REFERENCES:
patent: 3963681 (1976-06-01), Kaneko et al.
Askill Ian N.
Reed Andrew M.
Weber Willis W.
Matrix Medica, Inc.
Welsh Maurice J.
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