Photodegradable polymer compositions comprising blends of polyme

Details Photodegradable polymer compositions comprising blends of polyme Photodegradable polymer compositions comprising blends of polyme

1977-02-01

1979-11-27

Turer, Richard B.

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

Synthetic resins

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

525 78, 525 85, 525 77, 260DIG43, C08L 5100, C08L 5300

Patent

active

041761456

ABSTRACT:
Polymer compositions which have accelerated rates of degradation on exposure to ultraviolet radiation, e.g. direct sunlight in an outdoor environment, comprise a blend of a major proportion of a normal, standard synthetic polymer, e.g. polyethylene, and a minor proportion of a graft or block copolymer of a ketone group containing monomer, e.g. methyl vinyl ketone, graft or block copolymerized onto a backbone polymer e.g. of polyethylene. The composition can be molded, extruded and otherwise fabricated in the normal way to produce disposable, photodegradable plastic articles such as containers, wrapping films and the like.

REFERENCES:
patent: 3853814 (1974-12-01), Guillet
patent: 3878169 (1975-04-01), Guillet et al.
patent: 3925269 (1975-12-01), Miyoshi et al.
patent: 4025580 (1977-05-01), Taylor
patent: 4042568 (1977-08-01), Guillet et al.

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