Polyisocyanates containing ether and urethane groups, a process

Details Polyisocyanates containing ether and urethane groups, a process Polyisocyanates containing ether and urethane groups, a process

1992-12-02

1998-05-05

Sergent, Rabon

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...

25218222, 528 65, 528 66, 528 67, 528 76, 528 77, 560 25, 560 26, 560358, 560360, C08G 1810, C08G 1876, C07C26902, C07C27126

Patent

active

057476284

ABSTRACT:
Polyisocyanates based on polyhydroxy polyethers and tolylene diisocyanate containing ether and urethane groups and having an isocyanate group content of from 11.8 to 14.4% by weight, an average isocyanate functionality of from 3.1 to 4.0 and a free tolylene diisocyanate content of less than 0.1% by weight are produced by reacting a polyhydroxy polyether having a molecular weight in the range of from about 350 to about 500 with excess quantities of tolylene diisocyanate and subsequently distilling the mixture to remove unreacted excess of the starting diisocyanate. These polyisocyanates are particularly useful in the production of polyurethane lacquers.

REFERENCES:
patent: 3049513 (1962-08-01), Damusis et al.
patent: 3183112 (1965-05-01), Gemassmer
patent: 3268488 (1966-08-01), Heiss
patent: 3384624 (1968-05-01), Hess
patent: 3652506 (1972-03-01), Gibier-Rambaud et al.
patent: 3723394 (1973-03-01), Gibier-Rambaud et al.
patent: 3839491 (1974-10-01), Gamero et al.
patent: 3992316 (1976-11-01), Pedain et al.
patent: 4169175 (1979-09-01), Marans et al.
patent: 4385171 (1983-05-01), Schnabel et al.
patent: 4579929 (1986-04-01), Kay et al.
patent: 4683279 (1987-07-01), Milligan et al.
patent: 4906720 (1990-03-01), Parfondry
patent: 4910332 (1990-03-01), Kahl et al.
patent: 5051152 (1991-09-01), Siuta et al.
patent: 5654390 (1997-08-01), Gajewski et al.

Affiliated with

Also associated with

Rating

Polyisocyanates containing ether and urethane groups, a process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyisocyanates containing ether and urethane groups, a process , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyisocyanates containing ether and urethane groups, a process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-55943