| (19) |
 |
|
(11) |
EP 0 178 899 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
15.04.1987 Bulletin 1987/16 |
| (43) |
Date of publication A2: |
|
23.04.1986 Bulletin 1986/17 |
| (22) |
Date of filing: 15.10.1985 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB IT SE |
| (30) |
Priority: |
15.10.1984 US 661113
|
| (71) |
Applicant: QO CHEMICALs, INC. |
|
() |
|
|
| |
|
(57) A process for cleaning a metal, plastic or wood surface on which there is a residue
resulting from contact with a cured resin which comprises applying to said surface
a solution of a copolymer of N-vinyl-2-pyrrolidone and maleic acid, drying said solution
of N-vinyl-2-pyrrolidone and maleic acid copolymer to form a film, and separating
said film from said surface.