Process for the production of water-soluble or water-dispersible

Details Process for the production of water-soluble or water-dispersible Process for the production of water-soluble or water-dispersible

1975-11-10

1978-07-04

Smith, Ronald H.

Coating processes

With post-treatment of coating or coating material

Heating or drying

260 292TN, 427365R, 528 45, B05D 302

Patent

active

040989330

ABSTRACT:
This invention relates to a process for producing stable water dispersible blocked polyisocyanates, the compounds so produced and their use in producing coatings and films. These compounds are produced by blocking about 50 to 99.8 weight % of the isocyanate groups of an organic polyisocyanate and then reacting the partially blocked polyisocyanate with a compound carrying both an isocyanate reactive hydrogen and a hydrophilic group, e.g. a carboxylic acid salt or polyethylene oxide or a group convertible to a hydrophilic group, e.g. a carboxylic acid or tertiary amine. The blocked polyisocyanate with hydrophilic groups may then be dispersed in water with organic compounds having at least two isocyanate reactive hydrogen atoms per molecule and then cured by driving off the water and raising the temperature sufficiently high to unblock the polyisocyanate.

REFERENCES:
patent: 3384506 (1968-05-01), Elkin
patent: 3438940 (1969-04-01), Keberle et al.
patent: 3514316 (1970-05-01), Kemp et al.
patent: 3773729 (1973-11-01), Wakimoto et al.
patent: 3883483 (1975-05-01), Anderson et al.
patent: 3897377 (1975-07-01), Broecker et al.
patent: 3904796 (1975-09-01), Zorn et al.
patent: 3933759 (1976-01-01), Hoeschele
patent: 3939222 (1976-02-01), Dieterich

Affiliated with

Also associated with

Rating

Process for the production of water-soluble or water-dispersible 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 water-soluble or water-dispersible, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of water-soluble or water-dispersible will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-278393