Process for the production of polyurethane polymer compositions

Details Process for the production of polyurethane polymer compositions Process for the production of polyurethane polymer compositions

1981-12-28

1983-08-09

Jacobs, Lewis T.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524871, 524872, 524873, 524874, 524875, 521110, 521122, 521124, C08L 7504

Patent

active

043979831

ABSTRACT:
The invention is concerned with the preparation of polyurethane compositions in which the deleterious effect of gaseous by-products formed in the reaction is minimized. This is achieved by the use of coupling reagents which incorporate a steric hindrance function. The latter does not interfere with the normal coupling reactions between the coupling agent and polymer matrix and filler material but it does prevent such reaction between the coupling agent and filler material as would cause release of low molecular weight compounds occluded by the filler. Since the release of low molecular weight compounds is avoided, the formation or evolution of gases which give rise to unwanted cellularity of the cured composition is at least minimized.

REFERENCES:
patent: 3271352 (1966-09-01), Weinberg
patent: 3326844 (1967-06-01), Gruber
patent: 3755222 (1973-08-01), Gruber et al.
patent: 4069192 (1978-01-01), Monte et al.

Affiliated with

Also associated with

Rating

Process for the production of polyurethane polymer compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of polyurethane polymer compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of polyurethane polymer compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-587726