Linear segmented polyurethaneurea and process for production the

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

528 51, 528 52, 528 61, 528906, 528 76, 524710, 524726, 524874, C08G 1810

Patent

active

055412807

ABSTRACT:
A linear segmented polyurethaneurea having a degree of branching (Nb) of 3 or less and obtained by chain-extending a prepolymer with an organic diamine in an organic solvent comprising dimethylformamide or dimethylacetamide, wherein the prepolymer has an isocyanate group at the both ends thereof and comprises a stoichiometrically excessive amount of a diisocyanate component selected from 4,4'-diphenylmethane diisocyanate, 2,4-toluene diisocyanate and 1,4-phenylene diisocyanate and a diol component having a number average molecular weight of 500 to 6000.

REFERENCES:
patent: 2929804 (1960-03-01), Steuber
patent: 3179625 (1965-04-01), Ehrhart
patent: 3509102 (1970-04-01), Horn et al.
patent: 4940750 (1990-07-01), Rosthauser et al.
Dec. 13, 1993 European Search Report in EAA 92 91 1110.2 with Annex.

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

Linear segmented polyurethaneurea and process for production the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linear segmented polyurethaneurea and process for production the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear segmented polyurethaneurea and process for production the will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1659556

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