Low shrinkage unsaturated polyester resin composition

Details Low shrinkage unsaturated polyester resin composition Low shrinkage unsaturated polyester resin composition

1982-03-24

1983-07-19

Lieberman, Allan

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

Synthetic resins

Ethylenically unsaturated reactant admixed with either...

525445, C08L 6706

Patent

active

043944809

ABSTRACT:
An unsaturated polyester resin composition comprising an unsaturated polyester resin, a polymerizable monomer and a mixture of block copolymers having acid groups prepared by first copolymerizing in a first copolymerization reaction a polymeric peroxide with a monomer A or B, or with an unsaturated acid together with monomer A or B, thereby obtaining a copolymer having peroxy bonds in the molecule thereof, which copolymer is further copolymerized in the second copolymerization reaction with each of monomers A or B or the unsaturated acid which were excluded in the first copolymerization reaction to give the block copolymer mixture, which composition shows no segregation of the low shrinkage agent on thickening by a thickener and the said composition gives cured moldings of reduced shrinkage which are excellent in many characteristics.

REFERENCES:
patent: 3721642 (1973-03-01), Schalin
patent: 3725335 (1973-04-01), Lefebre
patent: 4048257 (1977-09-01), Stevenson
patent: 4245068 (1981-01-01), Brewbaker
patent: 4251641 (1981-02-01), Arakawa
patent: 4283512 (1981-08-01), Matsushima
patent: 4309519 (1982-01-01), Obara

Affiliated with

Also associated with

Rating

Low shrinkage unsaturated polyester resin composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low shrinkage unsaturated polyester resin composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low shrinkage unsaturated polyester resin composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-752304