Method for recycling painted plastic materials

Details Method for recycling painted plastic materials Method for recycling painted plastic materials

1994-03-17

1995-11-21

Michl, Paul R.

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

Synthetic resins

Process of treating scrap or waste product containing solid...

521 47, 521 495, 252150, 252162, 252171, 252544, C08J 1100, C11D 732

Patent

active

054687799

ABSTRACT:
A plastic material with a paint film is coarse-crushed, and a film decomposition agent, e.g. a heterocyclic compound such as imidazole, a triazine compound such as benzoguanamine, a phenylendiamine compound such as N-phenyl -N'-isopropyl-p-phenylene diamine, is added to the coarse-crushed material. The mixture is then heated and kneaded to dissolve the paint film and uniformly spread the particles of the paint film in the plastic material. The physical properties and surface quality of the plastic material are substantially the same as those of the original material.

REFERENCES:
patent: 3819529 (1974-06-01), Murphy
patent: 3972839 (1976-08-01), Murphy
patent: 4770713 (1988-09-01), Ward
patent: 5122398 (1992-06-01), Seiler et al.

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