Preparation of curable etherified aminoplast resins and of surfa

Details Preparation of curable etherified aminoplast resins and of surfa Preparation of curable etherified aminoplast resins and of surfa

1985-07-05

1986-11-04

Phynes, Lucille M.

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

Synthetic resins

From aldehyde or derivative thereof as reactant

525509, 525515, 528259, 528261, 528266, C08G 1228

Patent

active

046211330

ABSTRACT:
A process for the preparation of curable etherified aminoplast resins based on urea/aldehyde polycondensates, and the preparation of surface coating resins.
Urea is first reacted with an .alpha.,.alpha.-dialkylaldehyde, as much as 50 mol % of which may be replaced by formaldehyde, in a molar ratio urea/aldehyde of about 1:2, at from 50.degree. to 120.degree. C., in the presence of an acid and in the presence or absence of an alcohol or of other organic solvents, and the 2-oxohexahydropyrimidine derivative obtained in this cyclocondensation is then condensed with formaldehyde in the presence of one or more alcohols and an acid.
These aminoplast resins are useful as both acid-curable resins and as resins for baking finishes.

REFERENCES:
patent: 4102840 (1978-07-01), Pusch
patent: 4298512 (1981-11-01), Sartoretto

Affiliated with

Also associated with

Rating

Preparation of curable etherified aminoplast resins and of surfa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of curable etherified aminoplast resins and of surfa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of curable etherified aminoplast resins and of surfa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-697681