Method for producing millable polyurethanes and polyurethane ela

Details Method for producing millable polyurethanes and polyurethane ela Method for producing millable polyurethanes and polyurethane ela

1996-12-02

1999-12-28

Gorr, Rachel

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 80, 525450, C08G 1842

Patent

active

060083123

ABSTRACT:
A method for producing millable polyurethanes by first producing a poly-.epsilon.-caprolactone based diol, the poly-.epsilon.-caprolactone based diol containing a controlled average number of caprolactone units and having a molecular weight distribution; and reacting the poly-.epsilon.-caprolactone based diol with a diisocyanate to produce a polyurethane with a restricted crystallizability having a rubber elasticity. The resulting millable polyurethanes exhibit excellent hydrolysis resistance, show no crystallization at low temperatures and have excellent mechanical properties.

REFERENCES:
patent: 3169945 (1965-02-01), Hostettler
patent: 3663515 (1972-05-01), Hostettler et al.
patent: 3899467 (1975-08-01), Bonk et al.
patent: 4447591 (1984-05-01), Watanabe
C.Seefried, Jr. J.V. Koleske, F.E. Critchfield Thermoplastic Urethane Elastomers. I. Effect of Soft Segment Variations Sep. 1975 Journal of Applied Polymer Science vol. 19, No. 9.
C.Seefried, Jr. J.V. Koleske, F.E. Critchfield Thermoplastic Urethane Elastomers. II. Effects of Variations in Hardsegment Concentration Sep. 1975 Journal of Applied Polymer Science vol. 19, No. 9.
Nitta Ind Corp. Patent Abstracts of Japan Dec. 19, 1991 JP 03 220224, vol. 015, No. 504 (C-0896).

Affiliated with

Also associated with

Rating

Method for producing millable polyurethanes and polyurethane ela does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing millable polyurethanes and polyurethane ela, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing millable polyurethanes and polyurethane ela will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2383053