Abstract: This invention is directed to adducts of at least two poly(active hydrogen) organic compounds and a polyepoxide comprising the reaction product of at least two poly(active hydrogen) organic compounds differing as to classification and a polyepoxide containing two or more epoxy groups per molecule, said poly(active hydrogen) organic compounds being employed in an amount at least sufficient to effect substantially complete reaction of the epoxy groups of the polyepoxide. The adducts are useful in the formulation of high solids coating compositions, polyurethane elastomers, inks, sealants, adhesives and the like.

Abstract: A curable composition comprising an epoxy resin or a monoepoxide and a curing agent comprising a metal salt complex of an adduct of an imidazole and a monofunctional epoxy compound.

Abstract: Compositions that cure when heated comprise(A) an epoxide resin and(B) an effective amount of(i) a diaryliodosyl salt of formula ##STR1## where R.sup.1 and R.sup.2, which may be the same or different, each represents a monovalent aromatic radical of from 4 to 25 carbon atoms, such as a substituted or unsubstituted phenyl group,M represents a metal or metalloid atom, such as phosphorus or boron,X represents a halogen atom, particularly chlorine or fluorine, andn is 4, 5, or 6, and is greater by one than the valency of M or MX.sub.n.sup.- represents pentafluorohydroxoantimonate, and(ii) a catalyst for the diaryliodosyl salt which is a salt or complex of a d-block transition metal, a stannous salt, an organic peroxide, or an .alpha.-hydroxy compound.Typically, the epoxide resin (A) is a bisphenol A diglycidyl ether, the salt (i) is diphenyliodosyl tetrafluoroborate or hexafluorophosphate, and the catalyst (ii) is cupric acetylacetonate or benzpinacol.

Abstract: Compounds according to formula:M.sup.1.sub.a [M.sup.2 (CN).sub.b (A).sub.c ].sub.d.w M.sup.3 D.sub.e.x H.sub.2 O. y L. z H.sub.n E.sub.m,wherein M.sup.1 represents at least one of Zn(II), Fe(II), Co(II), Ni(ii), Mn(II), Cu(II), Sn(II), or Pb(II); M.sup.2 represents at least one of Fe(II), Fe(III), Co(III), Cr(III), Mn(II), Mn(III), Ir(III), Rh(III), Ru(II), V(IV) or V(V); M.sup.3 represents M.sup.1 and/or M.sup.2 ; A, D and E each represent an anion which may be the same or different; L represents an alcohol, aldehyde, ketone, ether, ester, amide, nitrile or sulphide or mixtures thereof; a and d are numbers to satisfy the valency state of M.sup.1 and M.sup.2 in the double metal cyanide part of the general formula I; b and c are integers (b>c) which together with a and d provide the electroneutrality of the double metal cyanide part of the general formula I; e is an integer satisfying the valency state of M.sup.3 ; n and m are integers satisfying the electroneutrality of HE, andw is a number between 0.

Abstract: A process for the polymerization of epoxides using as catalyst a double metal cyanide-type compound is described wherein said process is carried out in the presence of at least(a) one or more salts composed of at least bivalent metal ions and metal-free anions, having a solubility in water of at least 1 g/100 ml at 25.degree. C., and/or(b) one or more non-metal containing acids of which a 0.1 N solution in water at 25.degree. C. has a pH not exceeding 3.

Abstract: The invention relates to heat curable epoxy resin compositions consisting of an epoxy resin containing, on average, more than one epoxide group per molecule, an aromatic onium salt as catalyst, a copper complex compound as co-catalyst, and a light stabilizer. These compositions are less sensitive to UV irradiation and have a good shelf life at room temperature as well as a good high temperature reactivity.

Abstract: An epoxy resin-based compositions contain epoxy resins and a catalytic amount of curing catalysts which comprise organosilicon compounds having at least one hydroxyl group directly bonded to silicon atom and a compound having organic groups of aluminum, iron or vanadium.

Abstract: UV curable mixtures of C.sub.(8-28) .alpha.-olefin oxides and certain onium salt photoinitiators, for example, certain diaryliodonium salts, or triarylsulfonium salts, and optionally polyfunctional epoxy resin, have been found useful in paper release coating applications.

Abstract: Novel carboxylic acid metal salt/amine complexes are prepared by reacting 1 mol of a carboxylic acid metal salt of the formula(A.sup..crclbar.).sub.2 ME.sup.2+in which A.sup..crclbar. is the anion of a carboxylic acid which contains polar substituents or radicals and in particular contains an amide or imide grouping, such as a halogenoacetic acid, nitrilo-, cyano- or ureido-acetic acid, monoamidosuccinic acid, succinimidyl- or maleimidyl-alkanecarboxylic acid, benzenesulphonic acid or pyrrolidone-5-carboxylic acid, and Me.sup.2+ is a divalent metal cation, with 1 mol of a diamine of the formulaR.sub.1 --NH--R--NH--R.sub.2in which R is an aliphatic radical having not more than 7 C atoms or is a cycloaliphatic radical and R.sub.1 and R.sub.2 are hydrogen, alkyl having 1 to 4 C atoms, cyclohexyl, benzyl, 2-aminoethyl or 3-aminopropyl, in a polar organic solvent and in the temperature range from 25.degree. to 200.degree. C., to give complex compounds.

Abstract: Electrical apparatus cooled with a stream of hydrogen gas is protected from overheating by applying a coating to a portion of the apparatus which is exposed to the gas stream. The coating contains a compound which decomposes between 80.degree. and 200.degree. C. to produce a gas detectable by a monitor. The monitor detects gases heavier than hydrogen in the gas stream and sounds an alarm when they are present.

Abstract: Aromatic onium salts, such as diaryliodonium salts, have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when used in combination with various cocatalysts such as organic acids and copper salts.

Abstract: Dewatering aqueous polymer slurries containing polyvinylalcohol stabilizer by forming an insoluble organic destabilizer in situ from a soluble parent compound comprising ionizable groups. The slurry may then be filtered at 50.degree. C. or higher to yield a soft cake of beads essentially free of stabilizer.

Abstract: To accelerate the curing of epoxide resins by particular curing agents, i.e., polyamines, polyaminoamides, polycarboxylic acids, or polycarboxylic acid anhydrides, there is employed an aliphatic or araliphatic monocarboxylic acid group at least two halogen atoms chosen from fluorine and chlorine atoms, or a salt thereof, such as magnesium trifluoroacetate and magnesium trichloroacetate.