Process for UV stabilizer impregnation of plastic surfaces

Details Process for UV stabilizer impregnation of plastic surfaces Process for UV stabilizer impregnation of plastic surfaces

1987-12-31

1989-08-29

Bell, Janyce

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

427160, 427316, 427307, 427384, B32B 2736, B05D 500

Patent

active

048616648

ABSTRACT:
A process of producing a thermoplastic article having resistance to degradation by ultraviolet radiation, which comprises impregnating the surface of the thermoplastic article with a UV-absorbing effective amount of a solution of a multimeric benzotriazole compound at a surface impregnation effective elevated temperature.

REFERENCES:
patent: 2920978 (1960-01-01), Randall
patent: 3309220 (1967-03-01), Osteen
patent: 3892889 (1975-07-01), Cohnen et al.
patent: 4000148 (1976-12-01), Pond et al.
patent: 4322455 (1982-03-01), Olson et al.
patent: 4600647 (1986-07-01), Robeson et al.

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