| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Method for pattern-wise engraving of the surface of a body comprising forming on surface of body a layer of a photosensitive resin compn comprising - Urethane compd (100 parts) having a (meth)acrylate group at molecular end; obtained from polyester compd having a -OH at molecular chain end, wherein polyester is a PC diol or polymer formed by the ring-opening polymn of a lac tone monomer, a diisocyanate compd & (meth)acrylate compd having a -OH group - Alkali-soluble polymeric compd which is a carboxyl group contg cellulose resin having acid value 50-250 KOH/g - Photo-polymn initiator (0.1-20 parts) Thereadfter - Exposing layer of photo-sens. resin compn pattern-wise to actinic rays to form latent image - Developing latent image leaving a pattern-wise layer of cured resin compn as a resist - Sandblasting pattern-wise bare surface of the body |
| PATENT PHOTOCOPY | Available on request |
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