Abstract: A phenolic compound for manufacturing a modified polyamide that has an increased degree of crystallinity is described. A polyamide composition comprising at least one such phenolic compound and optionally reinforcing fillers or extenders is also described. The composition is preferably a composition to be molded, for example in the form of granules or powder, that is used for the manufacture of articles by an injection-molding process.

Abstract: Provided is a positive photoresist composition containing, as an essential component, a novolac phenolic resin (C) prepared by condensing an aromatic compound (A) represented by general formula (1) or (2) with an aliphatic aldehyde (B). This positive photoresist composition has high sensitivity and high heat resistance at the same time, and is suitable for use as a positive photoresist in, for example, the manufacture of semiconductor devices such as ICs and LSIs, the manufacture of displays such as LCDs, and the manufacture of printing plates. (In the formulas, R1, R2, and R3 are each independently an alkyl group having 1 to 8 carbon atoms; m, n, and p are each independently an integer of 0 to 4; q is an integer of 1 to (5?p); and s is an integer of 1 to (9?p).

Abstract: A phenolic compound for manufacturing a modified polyamide that has an increased degree of crystallinity is described. A polyamide composition comprising at least one such phenolic compound and optionally reinforcing fillers or extenders is also described. The composition is preferably a composition to be molded, for example in the form of granules or powder, that is used for the manufacture of articles by an injection-molding process.

Abstract: There is disclosed N-substituted arylamino-phenol-formaldehyde condensates which are substantially free of water, contain not more than 2% by weight of a phenol and possess unobvious properties, e.g., which have the residues of an N-substituted arylamine and 1.5 to 3 moles of formaldehyde for each mole of the said arylamine, contain from about 35% to 63% by weight of phenol residue, contain at least 3.5% by weight of nitrogen, have a melt viscosity of less than 2,000 cps at 175° C., a hydroxyl equivalent of about 195 to 220, a Methanol Tolerance of at least 40%, high solubility in organic solvents commonly used in epoxy formulations, and are self-catalyzing curatives for epoxy resins.

Abstract: A curable, alkaline, melamine modified phenol-formaldehyde resin is prepared from an initial phenol-formaldehyde resole resin containing from 0.5 to 2.5 percent of free formaldehyde by scavenging formaldehyde with 1 to 12 parts of melamine for each 100 parts of the initial resin wherein the molar ratio of formaldehyde to melamine is 0.2 to 1.5 moles of formaldehyde for each mole of melamine to reduce the free formaldehyde to less than 70% of that in the initial resin and prepare a storage stable resin which contains less than 0.7% of free formaldehyde and which maintains its stability under application conditions. An ammonium salt of strong acid and additional water is incorporated in the melamine modified resin to prepare an alkaline binder. The binder is sprayed on to fiberglass with low formaldehyde emissions, good stability and rapid cure in the acid range.

Abstract: Compositions containing an aryl phosphite and water to hydrolyze the aryl phosphite provide controlled and extended work time when used as hardening agents for the ambient temperature hardening of phenolic resins and for rapid hardening of such resins at modestly elevated temperatures. Pre-solvolysis with small quantities of water, alkanols of 1 to 4 carbon atoms or alkylene glycols of 2 to 4 carbon atoms improve compatibility of trisubstituted phosphites with the resin. Pre-hydrolysis of the phosphites as well as addition of furfuryl alcohol or alkylene glycols of 2 to 4 carbon atoms accelerate the hardening (curing) of the resin. Various compounds such as: carboxylic acid amides, urea, dicyandiamide, N-methylolated amides, N-alkyl 2-pyrrolidinones having 1 to 4 carbon atoms in the alkyl group, those having an internal epoxide group, alkanols, and Schiff bases retard the ambient temperature hardening of the resin with the aryl phosphite hardening agents.

Abstract: A method for preparing a polymer powder which is redispersible in water by atomizing an aqueous non-polyvinyl alcohol stabilized polymer dispersion containing a dispersing aid consisting of vinyl pyrrolidone homopolymer.

Abstract: A composition of matter comprising a mixture of:a) 1-(poly[1-hydroxyl-(2,6-phenylene methylene)])-3,5-dihydroxy-s-triazine;b) cyclo-1,3-(poly[1-hydroxyl-2,6-phenylenemethylene)])-5-hydroxy-s-triazine;c) [1-(phenoxy)-3-(phenoxy')-5-hydroxy-s-triazine-]poly[1-hydroxyl-(2,6-pheny lene methylene)];d) a ladder polymer containing randomly interdispersed s-triazine 'steps'; ande) a star polymer containing randomly interdispersed s- triazine connector sites for poly[1-hydroxyl-(2,6-phenylene methylene)] groups but where one or more pendant hydroxyl-s-triazine functions are also present.

Abstract: Webs composed of inorganic or organic fiber material are bonded with a cured resin mixture consisting essentially of(A) from 5 to 80% by weight of a water-soluble condensation product of carbonyl number 0-200 which has been prepared by alkaline condensation from 0.1 to 0.4 mole of an aliphatic or cycloaliphatic condensable ketone and 1 mole of formaldehyde, and(B) from 20 to 95% by weight of a water-soluble amino and/or phenolic resin.

Abstract: Aminoplast compositions are cured using a sulfur and phosphorus containing catalyst.

Abstract: The invention relates to a method for the production of a resin which is used for manufacturing of an adhesive for cellulose based products. According to the method 30-70% by weight of a urea phenol resin with a molar ratio of 1.4-0.6 moles or urea, 0.006-0.3 moles of phenol and 0-0.04 moles of melamine per mole formaldehyde, are mixed with 70-30% by weight of a melamine resin with a molar ratio formaldehyde: melamine of 1.7-2.4. The urea-phenol resin has been prepared by adding a cross-linking agent containing a co-condensate of phenol, formaldehyde and urea to a pre-condensate of formaldehyde, urea and optionally melamine and condensing under acid conditions.According to a further embodiment the cross-linking agent is added to a evaporated condensate of formaldehyde, urea and optionally melamine.

Abstract: Disclosed is a coating composition for metals containing (A) a modified bisphenol type epoxy resin and (b) a phenol resin and/or an amino resin, which composition has excellent properties in fabricating properties, corrosion resistance, etc. and is suitably applicable to both inner and outer surfaces of the vessels for use in food and drink.

Abstract: A process for the preparation of synthetic resins based on resorcinol compounds which comprises reacting a resorcinol pitch which is obtained in the manufacture of resorcinol from benzenedisulfonic acid in at least one step with an oxo-compound selected from aldehydes, ketones and compounds based on or splitting off at least one of these substances, and the use of the products as binders for abrasive articles.

Abstract: An ultraviolet-absorbing amino compound; a paint containing the aforesaid ultraviolet-absorbing amino compound; and a coated article having on its surface a coated film containing the aforesaid ultraviolet-absorbing amino compound are provided. The ultraviolet-absorbing amino compound is produced by reacting (a) a compound having a light absorption maximum within a wavelength region of 300 to 400 m.mu. and containing a mono-, di- or tetra-hydroxyphenyl group, (b) at least one compound containing a amino group and (c) formaldehyde, in the presence of at least one alcohol. The ultraviolet-absorbing amino compound of this invention is used in resin products which undergo photodegradation by ultraviolet light, for example, paints or molded articles of resins, and is especially effective for use in thermosetting synthetic resin paints.

Abstract: Thermosetting powder coatings comprising reactive polymers containing reactive carboxyl, hydroxyl, and/or amide groups and adapted to be cross-linked with aminoplast resins are substantially improved by the inclusion of at least about 0.25% by weight of a heat curing catalyst. The catalyst is an amine salt of cyclohexyl sulfamic acid.

Abstract: The invention relates to sulphonated, aromatic reaction products as agents for tanning hides and leather. They are obtained by reacting a sulphonation product, which is previously formed from a diphenyl ether, a phenol and a sulphonating agent, with formaldehyde, with a reaction mixture of an aminoplast-forming agent and formaldehyde or with an aminoplast precondensate.