Thromboresistant polyetherurethane compounds and process for its

Details Thromboresistant polyetherurethane compounds and process for its Thromboresistant polyetherurethane compounds and process for its

1990-07-19

1991-10-29

Hoke, Veronica P.

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...

528 62, 528 64, 528 76, 604262, 604266, 604269, C08G 1848

Patent

active

050617770

ABSTRACT:
A thromboresistant segmented polyetherurethane compound wherein the polyether segment consists of 99 to 1% by weight of (a) a polytetramethylene ether segment having a number average molecular weight of 200 to 5,000 and 1 to 99% by weight of (b) a polyalkylene ether segment having a number average molecular weight of 200 to 5,000 in which the alkylene group has 2 or 3 carbon atoms, said segments (a) and (b) being contained in the same main chain. The segmented polyetherurethane compound is produced by a process comprising reacting 99 to 1% by weight of a polytetramethylene ether diol having a number average molecular weight of 200 to 5,000 and 1 to 99% by weight of a polyalkylene ether diol having a number average molecular weight of 200 to 5,000 in which the alkylene group has 2 or 3 carbon atoms, with a polyisocyanate compound, and reacting the resulting prepolymer with a chain extender.

REFERENCES:
patent: 4371686 (1983-02-01), Yamamoto et al.
patent: 4523005 (1985-06-01), Szycher
patent: 4942214 (1990-07-01), Sakhpara
Heiss, H. L. et al., Industrial & Engineering Chemistry 46, 1498 (1954).
Saunders, J. H. et al., Polyurethanes, Chemistry & Technology Part I Chemistry, 293-314 (1963).
Hepburn, C.: Polyurethane Elastomers, 50-54 (1982).

Affiliated with

Also associated with

Rating

Thromboresistant polyetherurethane compounds and process for its does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thromboresistant polyetherurethane compounds and process for its, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thromboresistant polyetherurethane compounds and process for its will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1401354