公开(公告)号：JPH0565418A

公开(公告)日：1993-03-19

申请号：JP25583891

申请日：1991-09-06

Applicant: AGENCY IND SCIENCE TECHN

Inventor： YAMAZAKI SHINSUKE ,  GAMA YASUO ,  UEKI TADASHI

IPC: C08G77/42 ,  C08L83/04 ,  C08L83/06 ,  C08L93/00 ,  C08L93/02 ,  C09D183/00 ,  C09D183/02 ,  C09D193/00 ,  C09D193/02

Abstract: PURPOSE:To provide a high-performance coating material improved in faults of a shellac resin, i.e., water resistance properties and alcohol resistance properties. CONSTITUTION:A shellac resin and tetraethoxysilane are dissolved in an anhydraus lower alcohol containing an organic acid as the catalyst in advance and, after coating, polycondensation is completed during air-drying. Gelation can be prevented and a low-viscosity sol can be kept for a long period. Three- dimensional cure is possible only by air-drying after coating and a high- performance coating film excellent in water resistance, solvent resistance, adhesion and hardness can be readily obtained.