Ciba-geigy Corporation

Derek James Massy

Heinz Abel

Melvin Harris

Kenneth Winterbottom

Christopher G Demmer

Edward W Garnish

Roger Francombe

Aqueous dispersions of a phenolic resole and a thermoplastics polymeric material or a rubber, suitable for use as adhesives, are prepared by (a) dissolving a solid thermoplastics polymeric material, such as a polyvinyl acetal or a nylon polyamide, or rubber in a phenol, (b) adding a nonionic or anionic surface active agent and/or protective colloid, (c) adjusting the mixture to a pH above 7 by addition of a base, (d) adding aqueous formaldehyde solution, or a formaldehyde donor, to a molar ratio of phenol to formaldehyde within the range 1:1 to 1:3, (e) if necessary, adding water, and (f) heating the mixture to form a phenolic resole.

Process for the preparation of phenolic resin-containing dispersions and

New compounds of formula ##STR1## where R.sup.1 represents --NR.sup.2 R.sup.3, an alkyl group, a mononuclear aryl group, a phenylalkylene group, or a group of formula ##STR2## R.sup.2 and R.sup.3 each represent --H, --CHR.sup.4 OR.sup.5, --CHR.sup.4 --S--R.sup.6 --COOQ, or ##STR3## R.sup.2 and R.sup.3 in formulae I and III being such that at most one represents a group of formula III and at least two each represent a group --CHR.sup.4 --S--R.sup.6 --COOQ,

Aminotriazinepolycarboxylic acids and partial esters thereof

Highly methylated methylolguanamines, such as a methylated tetramethylolbenzoguanamine or tetramethylolacetoguanamine, are advanced by heating under acid to neutral conditions with an advancement agent such as benzoguanamine, acetoguanamine, ethyleneurea, 1,3-propyleneurea, melamine, or urea. The products may be heated with resins containing at least two alcoholic hydroxyl, carboxylic acid, or carboxylic amide groups per molecule to form hard, crosslinked coatings. They are particularly useful in powder coatings.

Process for advancing highly methylated methylolguanamines with

Curable compositions, suitable for use as surface coatings, comprise

Aqueous coating compositions containing a mercaptan polyester and an

Leather is coated on at least one face with a curable composition comprising

Coating fibrous substrates

Carpets are backed with a composition comprising

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Linton, United Kingdom

Derek James Massy