Alkylene sulfide group-containing prepolymer, polymerizable comp

Details Alkylene sulfide group-containing prepolymer, polymerizable comp Alkylene sulfide group-containing prepolymer, polymerizable comp

1995-04-04

1997-01-14

Sweet, Mark D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aldehyde or derivative thereof as reactant

528373, 528374, 528376, 568 77, C08G 1220

Patent

active

055940900

ABSTRACT:
A first prepolymer contains a structural unit represented by the formula ##STR1## where m denotes a positive number of from 2 to 20 with a polymerization degree of 2 to 1000. A second prepolymer contains a structural unit represented by the formula ##STR2## where X denotes a hydrogen atom or a halogen atom, m.sup.1 and m.sup.2 denote positive numbers of from 2 to 20 and n.sup.1 +n.sup.2 denote positive numbers of from 2 to 1000, with n.sup.1 and n.sup.2 being not equal to 0, the prepolymer having a polymerization degree of 2 to 1000. An optical material with a high refractive index is obtained by polymerizing and curing a polymerizable composition containing the first or second prepolymer.

REFERENCES:
patent: 5288844 (1994-02-01), Sakagami

Affiliated with

Also associated with

Rating

Alkylene sulfide group-containing prepolymer, polymerizable comp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alkylene sulfide group-containing prepolymer, polymerizable comp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkylene sulfide group-containing prepolymer, polymerizable comp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1389059