Abstract: Advanced, etherified aminoplast resins containing one or more guanamine residues are prepared by heating, at a pH of from 2.5 to 9, an etherified methylolated urea, cyclic urea, carbamate or melamine such as methylated methylolated urea, ethyleneurea, or propyleneurea with a guanamine, such as benzoguanamine or acetoguanamine. The products may be heated with resins containing at least two alcoholic hydroxyl, carboxylic acid, or carboxylic acid amide groups per molecule to form hard, crosslinked materials. They are particularly useful in forming surface coatings.

Abstract: 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.

Abstract: Curable compositions, suitable for use as surface coatings, comprise(i) 100 parts by weight, calculated on its resin-forming solids content, of an ammonium or amine salt of a carboxyl-containing polyester which contains, on average, at least two mercaptan groups directly attached to aliphatic carbon atoms per molecule and at least one aliphatic group of 8 or more carbon atoms,(ii) from 5 to 100 parts by weight, calculated on its resin-forming solids content, of a water-soluble aminoplast containing, per average molecule, directly attached to an amido nitrogen atom or atoms of urea or of a polyamino-1,3,5-triazine, at least two groups of formula --CH.sub.2 OR, where R denotes a hydrogen atom or a methyl or ethyl group, and(iii) water.

Abstract: A process for finishing keratinous material, especially rendering it shrink-resistant or imparting to it durably pressed effects, comprises1. treating the material with a polythiol ester of the formula ##EQU1## WHERE R.sup.1 represents an aliphatic or araliphatic hydrocarbon radical of at least 2 carbon atoms, which may contain not more than one ether oxygen atom,R.sup.2 represents a hydrocarbon radical,p is an integer of from 2 to 6,q is zero or a positive integer of at most 3, such that (p + q) is at most 6, andr and s each represent zero or 1 but are not the same, and2. curing the polythiol ester on the material by means of a polyene containing, per average molecule, at least two ethylenic double bonds each .beta. to an oxygen, nitrogen, or sulfur atom, the sum of such ethylenic double bonds in the polyene and of the mercaptan groups in the polythiol ester being more than 4 and the combined weight of the polyene and the polythiol ester being from 0.5 to 15% by weight of the keratinous material treated.