公开(公告)号：JPH04321695A

公开(公告)日：1992-11-11

申请号：JP9087191

申请日：1991-04-22

Applicant: TOKUYAMA SODA KK

Inventor： KAZAMA HIDEKI ,  MATSUOKA SHINGO

IPC: C07F9/201 ,  C07F9/46 ,  C07F9/48 ,  C07F9/50

Abstract: PURPOSE:To provide a new phosphorus-containing compound useful as a material for optical lens, capable of giving resins of high refractive index and low specific gravity excellent in transparency and weatherability, etc. CONSTITUTION:The objective compound of formula I [A1 is (R4-X1)m, (R4-X1)n-R5 (X1 is O or S; R4 and R5 are each alkylene, phenylene, etc.), etc.; R1 is H or methyl; R2 and R3 are alkyl, aryl, etc.], for example, a compound of formula II. The present compound can be obtained e.g. by reaction at -50 to 50 deg.C for 30min to 12hr in an organic solvent such as THF between (A) compound(s) of formula III and/or IV (X is halogen) and (B) a halogenated phosphorus compound of formula V (Z is halogen).

公开(公告)号：JPH04249534A

公开(公告)日：1992-09-04

申请号：JP41559690

申请日：1990-12-28

Applicant: TOKUYAMA SODA KK

Inventor： KAZAMA HIDEKI ,  MATSUOKA SHINGO

IPC: C08F299/02 ,  C08F290/00 ,  C08G79/02 ,  C08G79/04 ,  G02B1/04

Abstract: PURPOSE:To produce the title prepolymer having an improved refractive index by introducing radical polymerizable groups together with thiophosphoric ester groups into the prepolymer. CONSTITUTION:A compd. of formula I (wherein R1 to R5 are each H, halogen, alkyl, aryl, aralkyl, alkoxy, or alkylthio) is reacted with compds. of formulas II, III, and IV (wherein R6 is H or methyl; X1 and X2 are each O or S; and m and n are each at least 1) in a molar ratio of the former compd. to the latter compds. of 2:8-8:2 in the presence of a radical polymn. initiator at 0-100 deg.C for 10min to 24hr to give a thiophosphoric ester prepolymer comprising 1-99mol% repeating units of formula V (wherein R is a group of formula VI or VII) and 99-1mol% repeating units of formula VIII and having a number- average mol.wt. of 500-30,000.