Monomeric aminoplast crosslinking agents

Details Monomeric aminoplast crosslinking agents Monomeric aminoplast crosslinking agents

1993-05-13

1994-03-15

Welsh, Maurice J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525190, 5253273, 5253299, 5253305, 5253319, 525375, 525443, 525455, 528 59, 528 73, 528232, 528259, 4273855, 427386, 4284111, 428413, 4284231, C08G 1232

Patent

active

052946711

ABSTRACT:
A monomeric alkoxymethylated aminoplast crosslinking agent derived from a m-TMI/melamine 1:1 adduct and a process for its preparation is provided. The process comprises contacting melamine with M-TMI, contacting the adduct formed with formaldehyde, and contacting the hydroxymethylated adduct with an alcohol such as butanol. A curable composition comprising the monomeric aminoplast crosslinker and a polyfunctional active hydrogen-containing material is also provided. An improved method of coating using the curable composition to produce cured films or objects is also provided.

REFERENCES:
patent: 329050 (1966-12-01), Hoover
patent: 4130577 (1978-12-01), Nagato et al.
patent: 4377530 (1983-03-01), Trenbeath et al.
patent: 4439616 (1984-03-01), Singh et al.
patent: 5071938 (1991-12-01), Halpaap et al.
Abstract of German Patent No. 4,120,323, published Dec. 12, 1992.

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