To provide a photocrosslinking method which stably crosslinks a polymer material such as a coating material (a coating), a film-forming material, a tacky adhesive, an adhesive, a release agent and the like by ultraviolet irradiation with good reproducibility.
The photocrosslinking method by imparting a heat energy to a polymer material to render it a film, and irradiating the film with ultraviolet rays to effect photocrosslinking comprises incorporating 0.1-10 pts.wt., based on 100 pts.wt. polymer of the main material, photocrosslinking agent having a reduction in weight after storage at 130°C for three hours of ≤15 wt.% into a polymer material. Particularly, the above photocrosslinking method uses an oligomer type polyfunctional photocrosslinking agent as the photocrosslinking agent. Furthermore, the photocrosslinking agent uses a block polymer having a hard polymer block A and a soft polymer block B as the above polymer of the main material.
INOUE TETSUO
DOI TOMOKO
| JPH10279894A | 1998-10-20 | |||
| JP2000167999A | 2000-06-20 | |||
| JPH0532952A | 1993-02-09 | |||
| JP2002069412A | 2002-03-08 | |||
| JP2002187906A | 2002-07-05 |
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