American Cyanamid Company

Daniel W Thomas

Frank F Cesark

Robert J Manfre

William Alan Jacobs

Robert G Lees

Ilze B Kancans

Fred W Luciw

Leslie Boldizer

Described is an improved process for the preparation of fully methylolated, substantially fully etherified, and substantially monomeric tetramethoxymethlglycoluril useful as a crosslinking agent for powder coatings. The improved process adds after the conventional steps of methylolation and etherification the new steps of acidic distillation followed by an additional etherification.

Process for the preparation of monomeric tetramethoxymethylglycoloril

Compounds of the formula ##STR1## wherein R and R' are alkyl C.sub.1 -C.sub.4 are useful as color formers for pressure- and heat-sensitive copying materials.

Oxime ethers of 4,4'-bis(N,N-diethylamino)benzhydrol and

Glyolic acid esters and amides of bis(p-disubstitutedaminophenyl)carbinols are disclosed as color formers for use in transfer sets.

Novel glycolic acid esters and amides of

Pigment compositions prepared from a pigment, a hydroxylic solvent, and a polar polymer may be reduced in particle size by grinding in the absence of a salt to produce a pigment which may be used 'as is' without any subsequent treatment.

Particle size reduction of pigments by non-salt milling

Compounds of the formula: ##STR1## wherein R and R.sup.1 are alkyl C.sub.1 -C.sub.4 are useful as color formers for pressure- and heat-sensitive copying materials.

Growing community of inventors

Bridgewater, NJ, United States of America

Daniel W Thomas