Weatherability and adherence of polypropylene

Details Weatherability and adherence of polypropylene Weatherability and adherence of polypropylene

1989-07-06

1991-03-05

Lipman, Bernard

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525375, 525388, C08F 800

Patent

active

049978888

ABSTRACT:
A process is provided for improving the resistance to deterioration when exposed to weather and the adherence to other materials of polypropylene, particularly in the form of moldings, which comprises subjecting a surface of polypropylene to the action of activated oxygen gas at a temperature below about 100.degree. C. in the presence of an N-alkyl or N-acyl 2,2,6,6-tetramethyl piperidyl compound for a time sufficient to improve such weather resistance and adherence.

REFERENCES:
patent: 4404301 (1983-09-01), Kuboto et al.
patent: 4429077 (1984-01-01), Kurrer et al.
patent: 4499220 (1985-02-01), Minagawa et al.

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