Method for salvaging aromatic polycarbonate blend values

Details Method for salvaging aromatic polycarbonate blend values Method for salvaging aromatic polycarbonate blend values

1993-08-02

1995-05-09

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 40, 521 405, 528196, C08J 1104

Patent

active

054140218

ABSTRACT:
A method is provided for effecting the removal of cured polyurethane paint from the surface of aromatic polycarbonate blend surfaces. Effective removal of thermally cured polyurethane paint from aromatic polycarbonate blend surface can be achieved by immersing the painted aromatic polycarbonate blend in an aqueous bath containing organic solvent, an alkali metal hydroxide and a surfactant.

REFERENCES:
patent: 4212774 (1980-07-01), Idel
patent: 4267096 (1981-05-01), Bussink et al.
patent: 4568712 (1986-02-01), Van Abeelen et al.
patent: 4654400 (1987-03-01), Lohmeijer et al.
patent: 5214072 (1993-05-01), Fennhoff et al.

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