Process for the production of cold-setting polyurethane urea...

Details Process for the production of cold-setting polyurethane urea... Process for the production of cold-setting polyurethane urea...

C - Chemistry, Metallurgy

08

G

402/154

C08G 18/32 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01)

Patent

CA 1311576

Mo-3086 LeA 25,610 A PROCESS FOR THE PRODUCTION OF COLD- SETTING POLYURETHANE UREA ELASTOMERS ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the production of polyurethane urea elastomers from a) NCO-terminated prepolymers based on polyisocyanates and polyethers having a molecular weight of 400 to about 10,000 and an ethylene oxide content of about 10 to 60 mole-% and b) solid diaminodiphenyl ureas corresponding to the formula Image wherein R1, R2, R3 and R4 may be the same or different and represent hydrogen or C1-C6 alkyl radicals and wherein the amino groups are in the m- and/or p-position to the urea group, characterized in that the NCO prepolymers are reacted with the diaminodiphenyl ureas in powder-form in a heterogeneous phase at temperatures of about 5 to 40°C. The present invention is also directed to the polyurethane urea elastomers prepared by this process. Mo-3086

578036

Affiliated with

Also associated with

Rating

Process for the production of cold-setting polyurethane urea... 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 cold-setting polyurethane urea..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of cold-setting polyurethane urea... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1296715