Repeating block, oligomer-free, polyphase, thermoformable...

Details Repeating block, oligomer-free, polyphase, thermoformable... Repeating block, oligomer-free, polyphase, thermoformable...

C - Chemistry, Metallurgy

08

G

402/145, 260/455

C08G 18/78 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01)

Patent

CA 1272732

ABSTRACT Polyphase, transparent, polyblock, oligomer- free, segmented urethane polymers are disclosed which are eminently suited for use in medical devices such as blood bags, etc., and are deriveable from chain extenders, free diisocyanate molecules and prepolymers consisting essentially of linear molecules which are terminated at each end by isocyanate groups. The pre- polymer molecules consist of n branched, polyether glycol residues joined through intervening carbamate groups with (n+1) diisocyanate residues, n ranging from about 1 to 4 and having an average value of less than 2. The polyether glycols have molecular weights of from about 1000 to about 6000 and are methylol- -terminated chains of alkylene oxide units. Impor- tantly, the final polymers are free of domain crystal- linity.

514330

Affiliated with

Also associated with

Rating

Repeating block, oligomer-free, polyphase, thermoformable... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Repeating block, oligomer-free, polyphase, thermoformable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Repeating block, oligomer-free, polyphase, thermoformable... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1266428