Abstract: Phenolic novolak resins are produced from acetophenone, particularly by-product acetophenone obtained from the cumene process for manufacturing phenol, by the process of (1) reacting acetophenone with an aldehyde under alkaline conditions, and (2) reacting the product of step (1) with a phenol under acidic conditions. Phenolic resole resins are produced by reacting the product of step (2) with an aldehyde under alkaline conditions. The acetophenone modified phenolic resins are useful as a molding material, a felting or batting binder, a grinding stone binder, a foundry sand binder and an adhesive for timbers.

Abstract: Triazine compounds and cross-linked polymer compositions are made by heating aromatic nitriles to a temperature in the range of from about 100.degree. C. to about 700.degree. C., and preferably in the range of from about 200.degree. C. to about 350.degree. C. in the presence of a catalyst or mixture of catalysts selected from one or more of the following groups: (A) organic sulfonic and sulfinic acids, (B) organic phosphonic and phosphinic acids, and (C) metallic acetylacetonates, at a pressure in the range of from about atmospheric pressure to about 10,000 p.s.i., and preferably in the range of from about 200 p.s.i. to about 750 p.s.i.

Abstract: An aromatic copolyester composition comprising (A) an aromatic copolyester derived from terephthalic acid, isophthalic acid and a bisphenol and (B) a phosphorus-containing compound represented by the general formula (II) ##STR1## wherein n is 0 or an integer of 1 to 3, and R is an alkyl group containing 1 to 18 carbon atoms, in which one or more of the hydrogen atoms of the alkyl group may be replaced by a halogen atom or a hydrocarbon group.Molded products obtained from the aromatic copolyester composition have markedly reduced coloration and reduced occurrence of water crazing.

Abstract: High strength fibers and films are prepared from melt extrudable (co)polyazomethines.

Abstract: A polymer derived by heating in the presence of an acid catalyst at between about 65.degree. C. and 260.degree. C.I. a reaction product, a cogeneric mixture of alkoxy functional compounds, having average equivalent weights in the range from about 220 to about 1200, obtained by heating in the presence of a strong acid at about 50.degree. C. to about 250.degree. C.(a) a diaryl compound selected from naphthalene, diphenyl oxide, diphenyl sulfide, their alkylated or halogenated derivatives or mixtures thereof,(B) formaldehyde or formaldehyde-yielding derivative,(C) water, and(D) a hydroxy aliphatic hydrocarbon compound having at least one free hydroxyl group and from 1 to 4 carbon atoms, which mixture contains up to 50 percent by weight unreacted (A); withIi. at least one monomeric phenolic reactant selected from the group ##STR1## WHEREIN R is selected from the group consisting of ##STR2## HYDROGEN, ALKYL RADICAL OF 1-20 CARBON ATOMS, ARYL RADICAL OF 6-20 CARBON ATOMS, WHEREIN R.sub.