Photodegradable polyurethane compositions

Details Photodegradable polyurethane compositions Photodegradable polyurethane compositions

1977-05-11

1979-03-20

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 74, 528 75, 528 76, 528 77, 528 79, 528 80, 528 81, 528 83, 528 84, C08G 2842, C08G 1848

Patent

active

041455169

ABSTRACT:
Condensation polymers such as polyamides, polyesters, polyurethanes, polyepoxides, polyamide esters, polyureas and polyamino-acids which are photodegradable on exposure to U.V. light, due to the presence in the copolymer backbone of units of structure ##STR1## in small amounts.

REFERENCES:
patent: 2279752 (1942-04-01), Jacobson
patent: 2769783 (1956-11-01), Hollyday, Jr.
patent: 2840608 (1958-06-01), Crawford et al.
patent: 3039996 (1962-06-01), Ferstandig et al.

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