公开(公告)号：JPH06184241A

公开(公告)日：1994-07-05

申请号：JP1301093

申请日：1993-01-29

Applicant: TOKUYAMA SODA KK

Inventor： MATSUOKA SHINGO ,  KAZAMA HIDEKI ,  HARA TADASHI ,  MATSUNAGA TOMONORI

IPC: C08F212/34 ,  C08F12/00

Abstract: PURPOSE:To obtain a polymerizable composition, comprising a specific vinylbenzyl compound and diphenyl-methyl-pentene and capable of providing a polymer, having a high refractive index without coloring by heating in surface coating and suitable as eyeglass lenses. CONSTITUTION:This polymerizable component comprises (A) 100 pts.wt. vinylbenzyl compound of the formula [R to R are H or halogen; X to X are O or S; (j), (k) and (m) are 0 or 1, with the proviso that (j) is O when (k) is 0; (k) = (j) = O when (m) is 0; X and X are not simultaneously S when (m) = (k) = (j) =1 and (j) is 0] [e.g. 1,2-(vinylphenyl)ethane] and (B) 0.1-20 pts.wt. 2,4-diphenyl-4-methyl-1-pentene. Furthermore, hexaethylene glycol di(meth)acrylate, etc., are preferably blended in this composition so as to afford a polymer good in dyeability, impact resistance, etc.