Abstract: An electrocoating composition containing a polymer having pendant tertiary amine groups, a polymer containing pendant mercaptan groups, an apha-, beta-ethylenically unsaturated carbonyl cross-linking agent, and a photosensitizer can be electrodeposited onto a cathode substrate disposed within an aqueous electrocoating bath. Full cure of the electrodeposited coating on the cathode substrate is obtained by the combination of heat curing and ultraviolet radiation curing. In a specific embodiment of the present invention, a single polymer contains both the pendant tertiary amine groups and pendant mercaptan groups.

Abstract: The invention relates to poly(arylacetylene) molding compositions and thermoset resins prepared therefrom. The molding compositions comprise blends of a polyacetylenically unsaturated prepolymer and from about 2 to about 70%, by weight of the prepolymer, of a monomeric acetylenically unsaturated aromatic compound having a melting point below about 185.degree. C. and a boiling point above about 250.degree. C. The polyacetylenically unsaturated prepolymer is a polymer of at least one polyacetylenically substituted aromatic compound, such as a diethynylbenzene, which prepolymer has a number average molecular weight of about 900 to 12,000 and contains about 5 to 20% by weight of acetylenic groups. Typical monomeric acetylenic aromatic compounds which are blended with the prepolymer are diphenylacetylene and diphenylbutadiyne.

Abstract: Method for the cationic polymerization of at least one olefinic monomer and more particularly the homopolymerization of a mono-olefinic monomer such as isobutylene and the copolymerization thereof with a di-olefinic monomer (diene) such as butadiene and optionally another mono-olefinic monomer in the presence of, as initiator of a halide of tetravalent vanadium, titanium and zirconium, an activator and under the influence of visible ultraviolet or infra-red light.

Abstract: Method for the cationic polymerization of at least one olefinic monomer and more particularly the homopolymerization of a mono-olefinic monomer such as isobutylene and the copolymerization thereof with a di-olefinic monomer (diene) such as butadiene and optionally another mono-olefinic monomer in the presence of, as initiator of a halide of tetravalent vanadium, titanium and zirconium, an activator and under the influence of visible ultraviolet or infra-red light.

Abstract: Ultraviolet light curable coating compositions comprising (1) a monomer and/or prepolymer containing at least one radically crosslinkable ethylenically unsaturated double bond and (2) a photopolymerization initiator containing (a) 4,4'-bis(diethylamino)benzophenone and (b) a lower alkyl ester of p- or o-benzoylbenzoic acid or a derivative thereof in a weight ratio of (a) to (b) of 1 : 1 to 1 : 10.

Abstract: An electrocoating composition containing a polymer having pendant tertiary amine groups, a polymer containing pendant mercaptan groups, a bis-maleimide cross-linking agent, and a photosensitizer can be electrodeposited onto a cathode substrate disposed within an aqueous electrocoating bath. The amine groups and the mercaptan groups are protonated with acid to render the polymers water dispersible prior to electrodeposition and are adapted to become deprotonated upon electrodeposition. Full cure of the electrodeposited coating on the cathode substrate is obtained by the combination of heat curing and ultraviolet radiation curing. In a specific embodiment of the present invention, a single polymer contains both the pendant tertiary amine groups and pendant mercaptan groups.

Abstract: Acrylate graft copolymers prepared in a two-stage process by first reacting a backbone polymer, such as 1,2-polybutadiene, an alkylidene norbornene polymer or an ethylene/propylene/alkylidene norbornene terpolymer, with, for example, a mixture of dinitrogen tetroxide and oxygen to form a nitrooxidized polymer having incorporated therein nitro and peroxy nitrate functions which serve, in the second stage of the process, as sites for the subsequent graft polymerization of an acrylate monomer are disclosed. The thus-formed graft copolymers comprise from about 5 to about 80 weight percent of the backbone polymer with the balance being furnished by the acrylate monomer.

Abstract: A single treatment process for imparting durable soil release and soil repellent properties to cotton fabrics and to cotton polyester blend fabrics with widely different constructions and compositions comprising free radical initiated reactions of a vinyl monomer that contains carboxyl functional groups with cotton and polyester in the fabrics, is described. Of special interest is the unusually high efficiency of removal of both aqueous soils and oily soils from the treated fabrics and the unusually high durability of the properties of treated cotton fabrics and cotton polyester blend fabrics with widely different constructions and compositions to laundering and cleaning.

Abstract: Particulate, free-flowing, insoluble swellable polymers are provided which are comprised of a mixture of an insoluble, swellable hydrogel and inert filler. The mixtures are free-flowing powders or granules which can absorb many times their weight of water and hence are useful as a soil amendment.

Abstract: Printing inks which cure under the action of UV radiation. The inks consist ofA. pigmentB. a mixture of benzophenone and Michler's ketone as the photoinitiatorC. a urethane-acrylateD. an epoxy-acrylate and/orE. a N-methylol-acrylamide-ether or N-methylol-methacrylamide-ether.

Abstract: An ultraviolet radiation-curable composition is provided which comprises a polyethylenically unsaturated compound and effective photosensitizing amounts of (a) a phenacyl ester, and (b) a tertiary aliphatic amine.

Abstract: White pigmented, liquid, substantially solvent-free coating compositions are provided which may be rapidly cured to a solid, tightly adherent, opaque white coating upon exposure to radiation and particularly to electromagnetic radiation. More specifically, the compositions comprise epoxy monomers or prepolymers blended with a bis (epoxycycloalkyl)ester, a radiation-sensitive catalyst precursor effective to initiate polymerization of the epoxides upon exposure to radiation and certain alumina treated titanium dioxides, preferably of the rutile type.

Abstract: A photopolymerizable composition containing olefinically unsaturated compounds, optional conventional additives and, as photoinitiator, a mixture of a thioether of the general formula (I): ##STR1## where R.sup.4 is phenyl, naphthyl, thienyl, furyl or styryl which may be substituted by one or more identical or different R.sup.5 's,R.sup.5 is phenyl, benzoyl, halogen, alkyl of 1 to 5 carbon atoms, alkyl having an --O--group and 1 to 5 carbon atoms, alkyl having an --S--group and 1 to 5 carbon atoms, alkoxyalkyl of 2 to 5 carbon atoms, alkaryl of 7 to 11 carbon atoms, aralkyl of 7 to 11 carbon atoms, NO.sub.2, CN, COOH or COOR.sup.6, R.sup.6 being an alkyl of 1 to 5 carbon atoms,A is the alkylene group C.sub.n H.sub.2n (n = an integer of 1 to 5) which may be substituted by one or more R.sup.4 's and/or R.sup.5 's, andR.sup.1, r.sup.2 and R.sup.3 may be identical or different and are each H, an R.sup.4 or an R.sup.5,and an organic amine.

Abstract: A photocurable bandage or splint consisting of a flexible fabric, a photosensitizer and a reaction product of a hydroxyalkyl acrylate or methacrylate, a diisocyanate and a polyhydric alcohol. The photocurable bandage or splint can be produced without using a solvent and a volatile monomer by using a process which comprises impregnating the flexible fabric with a reaction mixture obtained by adding the polyhydric alcohol to a reaction product of the hydroxyalkyl acrylate or methacrylate and the diisocyanate which contains free isocyanate groups, and reacting the polyhydric alcohol with the isocyanate groups on the fabric to form a photocurable composition.

Abstract: An improved process is disclosed for production of sulfhydryl-terminated compounds by reaction of an allene and hydrogen sulfide initiated with ultraviolet light of wavelength above about 2600 Angstroms to obtain a colorless product of improved purity. The invention also includes the polymerization of an unsaturated hydrocarbon with the sulfhydryl-terminated product to prepare a sulfhydryl-terminated polythioether. These compounds are useful as chemical intermediates and precursors of elastomeric sealants, such as architectural sealants.

Abstract: The present invention is directed to hot melt pressure sensitive adhesive compositions formed by copolymerizing at least one 3-(chlorinated aryloxy)-2-hydroxypropyl ester of an alpha, beta unsaturated carboxylic acid with acrylate based copolymerizable monomers, heating the resultant ethylenically saturated prepolymer to a temperature sufficient to render it fluid and flowable; coating onto a substrate and exposing to ultraviolet radiation.

Abstract: An improved process for production of sulfhydryl-terminated compounds by reaction of an allene compound and hydrogen sulfide is disclosed wherein the reaction is carried out in the presence of ultraviolet light of wavelength substantially above 2600 Angstroms and of an organic photosensitizing reagent to obtain a substantially colorless product of improved purity at an increased reaction rate. The invention also includes polymerization of the crude sulfhydryl-terminated product with an unsaturated compound to prepare sulfhydryl-terminated polythioethers which are useful as chemical intermediates and precursors of elastomeric sealants, such as architectural sealants.

Abstract: Dry non-sticky fine lubricant powders are made by .gamma.-irradiation of unsintered coagulated dispersion grade tetrafluoroethylene polymers and organic dispersions are made by dispersing the irradiated polymer in an organic medium.

Abstract: A multi-step process of producing polyoxymethylenes by solid state polymerization of trioxane is disclosed.Trioxane is irradiated with ionizing radiation within a temperature range in which no polymerization of trioxane takes place. The irradiated trioxane is then polymerized by raising the temperature to a value at which polymerization of trioxane takes place, said temperature value being at least 15.degree. C above the first mentioned temperature. The polymerization is effected in the presence of an amount of alkyl acetal. The polymerized product thus obtained is then again irradiated, whereupon further polymerization of the irradiated product takes place.The resulting polyoxymethylenes are snow white and exhibit excellent thermal stability. They also have high molecular weights.

Abstract: Polymerizable monomers are photopolymerized by subjecting the monomer to the emission from an ultra-violet light source in the presence of a photosensitizing compound and an activating compound .It has now been discovered that certain types of substituted acetophenones will act as both a sensitizer and an activator thus eliminating the presence of more than one compound in the monomer.