Self-curing material for the production of a weather-resistant,

Details Self-curing material for the production of a weather-resistant, Self-curing material for the production of a weather-resistant,

1982-04-23

1987-03-24

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyamidoester

128 90, 428262, 428264, 428286, 4284111, 4284251, 4284256, 427 2, B32B 2740, B32B 1700, A61F 504

Patent

active

046524932

ABSTRACT:
The disclosed invention is concerned with porous substrates impregnated with moisture curing polyurethane oligomers incorporating tertiary nitrogen atoms and free aromatic isocyanate groups in which the yellowing tendency of these isocyanates is diminished or supressed by the inclusion of specific light protection agents. These agents are either substituted oxalanilides or indole or indoline derivatives. The impregnated substrates cure rapidly when exposed to moisture to yield rigid structures suitable as a replacement for Plaster of Pairs in medicinal and veterinary bandaging applications.

REFERENCES:
patent: 3637745 (1972-01-01), Heller
patent: 3808273 (1974-04-01), Burdet
patent: 3906033 (1975-09-01), Biland
patent: 4003875 (1977-01-01), Luthi
patent: 4020832 (1977-05-01), Kirkpatrick
patent: 4160686 (1979-07-01), Niederdellmann
patent: 4189542 (1980-02-01), Kleiman
"New Fiber Glass Casting Systems", Clinical Orthopaedics and Related Research, 103, 109-117 (1974).

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