Process for the production of stable dispersions, the dispersion

Details Process for the production of stable dispersions, the dispersion Process for the production of stable dispersions, the dispersion

1988-07-28

1989-08-08

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524729, 524762, 524773, 524775, 525452, 525454, 525459, 525460, C08L 7504

Patent

active

048553522

ABSTRACT:
Stable finely-divided dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material are made by reacting (i) an isocyanate with (ii) a compound selected from polyamines, hydrazines, hydrazides and mixtures thereof in the presence of (iii) a hydroxyl compound selected from polyethers, polyesters, polyester amides, polycarbonates and mixtures thereof and (iv) a catalyst. The catalyst is a compound which catalyzes the reaction of isocyanate groups with hydroxyl groups. The catalyst is used in a quantity of at least 50 parts per million parts of (i), (ii) and (iii). These dispersions are particularly useful in the production of polyurethanes.

REFERENCES:
patent: 3325421 (1967-06-01), Muller
patent: 4042537 (1977-08-01), Dahm et al.
patent: 4089835 (1978-05-01), Konig et al.
patent: 4092275 (1978-05-01), Reischl et al.
patent: 4093569 (1978-06-01), Reischl et al.
patent: 4119613 (1978-10-01), Reischl et al.
patent: 4147680 (1979-04-01), Reischl et al.
patent: 4184990 (1980-01-01), Reischl et al.
patent: 4293470 (1981-10-01), Cuscurida
patent: 4296213 (1981-10-01), Cuscurida et al.
patent: 4305857 (1981-12-01), Reischl
patent: 4305858 (1981-12-01), Reischl
patent: 4310448 (1982-01-01), Reischl
patent: 4310449 (1982-01-01), Reischl
patent: 4324716 (1982-04-01), Reischl et al.
patent: 4374209 (1983-02-01), Rowlands
patent: 4496678 (1985-01-01), Wenzel et al.
patent: 4523025 (1985-06-01), Cuscurida et al.

Affiliated with

Also associated with

Rating

Process for the production of stable dispersions, the dispersion 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 stable dispersions, the dispersion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of stable dispersions, the dispersion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-906164