Low formaldehyde polyacetal containing coating

Details Low formaldehyde polyacetal containing coating Low formaldehyde polyacetal containing coating

1990-11-09

1992-04-07

Schofer, Joseph L.

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

Synthetic resins

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

525418, 525472, C08K 507

Patent

active

051029545

ABSTRACT:
The instant invention involves a process for forming a low formaldehyde, essentially color-free coating composition by applying the composition preferably to a wood substrate and curing. The composition comprises a blend of a polyhydroxy-containing polymer, an hexaalkoxymethylolmelamine, a polyacetal having the formula: ##STR1## wherein R is C.sub.1 -C.sub.3 and A is C.sub.1 -C.sub.20 allyl or aryl and an acid catalyst. The coating compositions of the instant invention exhibit extremely low color and give off a significantly reduced amount of formaldehyde when cured in comparison to conventional prior art, acid catalyzed melamine/formaldehyde cured coatings.

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patent: 4535127 (1985-08-01), Matsuzaki et al.
patent: 4670508 (1987-06-01), Ohdaira et al.
patent: 4814397 (1989-03-01), Novak
patent: 4873282 (1989-10-01), Yui et al.
patent: 5011890 (1991-04-01), Novak

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