Patent ID: 6743517
Filing Date: 2004-06-01
Classification: C08K,C09J,Y10T

Abstract:
A process for producing an optical device, comprising the steps of:placing an adhesive composition prepared by hydrolyzing, dehydrating and condensing a starting solution containing: (A) 10 to 50 mol % of a silane compound represented by the following formula (1): SiX14â€ƒâ€ƒ(1) â€ƒwherein X1 is a hydrolyzable group, or a combination of this silane compound and a metal alkoxide represented by the following formula (7): M(OR4)nâ€ƒâ€ƒ(7) â€ƒwherein M is Ti, Al or Zr, R4 is an alkyl group or trialkoxysilyl group, and n is 4 when M is Ti or Zr and n is 3 when M is Al, with the proviso that only one of the three R4's can be a trialkoxysilyl group when M is Al, the amount of the metal alkoxide being 50 mol % or less based on 100 mol % of the total of the metal alkoxide and the silane compound represented by the above formula (1), (B) 25 to 65 mol % of a silane compound represented by the following formula (2): PhSiX23â€ƒâ€ƒ(2) â€ƒwherein Ph is a phenyl group or substituted phenyl group, and X2 is a hydrolyzable group, and (C) 25 to 65 mol % of a silane compound represented by the following formula (3): (CH3)2SiX32â€ƒâ€ƒ(3) â€ƒwherein X3 is a hydrolyzable group, between an optical part and another part; and heating it to bond the optical part to the another part.