High-modulus polyisocyanurate elastomers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428423, 528 44, 528 54, 528 67, 528905, 528906, C08G 1822, C08G 1876, C08G 1832

Patent

active

041267427

ABSTRACT:
Novel solid polyisocyanurate polymers are disclosed which comprises the reaction product of an organic polyisocyanate, a trimerization catalyst and a polyol combination comprising from about 0.025 to about 0.15 equivalent and about 0.05 to about 0.25 equivalent, per equivalent of polyisocyanate, respectively of an ethylene oxide capped polypropyleneoxy glycol having an equivalent weight of from about 750 to about 1500 and either 1,4-butanediol or diethylene glycol.
Although containing a higher proportion of polyurethane linkages than those polyisocyanurates containing the polypropyleneoxy glycol alone, the polymers of the invention are characterized by superior high temperature resistance and are particularly useful in the preparation of high modulus molded parts using reaction injection molding (RIM) techniques.

REFERENCES:
patent: 3620987 (1971-11-01), McLaughlin et al.
patent: 3745133 (1973-07-01), Communale et al.
patent: 3849349 (1974-11-01), Frisch et al.
patent: 3986991 (1976-10-01), Kolakowski et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High-modulus polyisocyanurate elastomers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-modulus polyisocyanurate elastomers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-modulus polyisocyanurate elastomers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2050152

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.