Abstract: A photopolymerizable composition comprising photopolymerizable ethylenically unsaturated compounds and, as the photoinitiator, a glyoxylamide having the formula: ##STR1## wherein R and R.sup.1 are individually selected hydrogen or hydrocarbon of from 1 to 10 carbon atoms; R.sup.2 is a heterocyclic radical, aryl of from 6 to 14 carbon atoms or mono-, di- or polysubstituted phenyl with substituents selected from the group consisting of alkyl, alkoxy, aryloxy, alkylthio, arylthio and halogen; R.sup.3 is phenyl or--CH.sub.2).sub.zWhere z is an integer from 2 to 6;X is zero, oxygen, sulfur, --NH--, phosphorus or silicon; and n is an integer from 2 to 4. The composition cures upon exposure to actinic radiation.

Abstract: A novel process is provided for preparing a blend of rubber, a polyphenylene ether resin and an alkenyl aromatic addition polymer which comprises using an alkenyl aromatic monomer as a solvent for the oxidative coupling of a phenol to a polyphenylene ether resin and thereafter adding a rubber and polymerizing the mixture to form said blend of rubber, an alkenyl aromatic addition polymer and a polyphenylene ether resin.

Abstract: Opaque coatings or films having a high covering capacity produced from coating compositions containing synthetic resins, fillers, solvents, common catalysts, sensitizers, additives and auxiliary agents, characterized in that radiation permeable mixtures of coating compositions are used containing the following components:A. 14 - 20 parts by weight, preferably 15 - 18 parts by weight, photosensitized light curing condensation resins having double bond values of 0.180 to 0.450;B. 55 - 75 parts by weight, preferably 65 - 70 parts by weight, or fillers having a low covering capacity;C. 0.5 - 10 parts by weight, preferably 1 - 6 parts by weight, of film forming cellulose derivatives or mixed polymerizates of vinyl chloride with other monomers which are compatible with A and B, andD.

Abstract: Radiation curable coating compositions that contain an acrylate-capped polyether urethane, a low molecular weight polyfunctional acrylate, a monofunctional acrylate and, optionally, a photo-initiator are described. When cured, the coating compositions are sufficiently hard and flexible to serve as an overprint coating on sheet metal which is to undergo metal forming operations.

Abstract: Improvements in phosphonitrilic polymers and compositions based on the same, possessing outstanding low temperature flexibility and good physical strength over a broad range of service conditions, are obtained by the incorporation of some unsaturated substituents in the side chains on the --P=N-- backbone, to adapt the polymers to vulcanization with sulfur accelerated cure systems or radiation cure.

Abstract: An improved process for the photopolymerization of compositions including photopolymerizable acrylic or methacrylic acid esters and an initiator (e.g., a benzoin compound) is disclosed. The addition of 0.1 to 20 weight percent (based on the amount of polymerizable material) of an organic phosphite substantially reduces the polymerization time of the resulting composition.

Abstract: Radial block copolymers are mechanically combined with additional polymeric materials to form plastic compositions having a high degree of clarity so that they can be substituted for polyvinylchloride plastic compositions in the fabrication of such devices as intravenous and blood tubing, containers for intravenous solutions and blood fractions, functional parts of intravenous administration equipment such as sight and drip chambers, needle adapters and miscellaneous assemblies for contact with intravenous fluids. The compounds of this invention can also be utilized for catherization, bodily drainage systems, and as pharmaceutical closures, resealable injection sites and syringe plunger tips.

Abstract: N-Substituted acryloyloxyethyl amines are useful both as radiation curable coating materials and as cure accelerators in coating formulations. The amines are prepared by one of several methods including transesterification of acrylate esters with an N-substituted hydroxyethylamine or acrylation of the N-substituted hydroxyethylamine.

Abstract: A process for curing acid-curable resins with photocatalyst compounds having the general formula: ##STR1## WHEREIN M = 0, 1 OR 2 AND P IS AN INTEGER FROM 1 TO 5 AND WHEREIN, WHEN P IS 1, R represents an alkyl or alkoxy group having at least 4 C-atoms, and when p>1, R represents alkyl or alkoxy groups having together at least 4 C-atoms. The photocatalyst which may be used is 2,2,2-trichloro-4'-tert-butylacetacetophenone. This compound may be prepared by chlorinating 4'-tert-butylacetophenone or by treating tert-butyl benzene in carbon disulfide with trichloroacetyl chloride or trichloroacetonitrile and aluminum chloride.

Abstract: Photopolymerizable binders for UV-curing printing inks and coating compositions, which contain benzophenone-based photoinitiators and photosensitizers including p-dimethylaminobenzaldehyde and esters of p-dimethylaminobenzoic acid.

Abstract: Novel ultra high impact molding compositions have been made which comprise a polyphenylene ether resin, a block copolymer of an alkenyl aromatic compound and a diene rubber and a hydrogenated block copolymer of the A-B-A type wherein A is an alkenyl aromatic compound and B is a diene rubber block.

Abstract: Crosslinking, e.g., by irradiation, of a polymer comprising poly(tetramethyleneterephthalate) is made possible by the addition of a member selected from the group consisting of triallyl cyanurate and N,N'-m-phenylenedimaleimide. The resulting crosslinked modified polymer may be rendered heat recoverable.

Abstract: The use of terminal trichlorinated, brominated or iodinated hydrocarbons as co-photoinitiators in combination with standard photoinitiators in ultraviolet curable coating compositions is disclosed.

Abstract: Coating compositions containing the oxygen sensitive diacrylate monomers 3-acrylyloxy-2,2-dimethylpropyl 3-acrylyloxy-2,2-dimethylpropionate, 1,3-bis(acrylyloxy)-2,2-dimethylpropane or mixtures thereof and further containing hiding pigment are cured by ionizing irradiation in the presence of a curing atmosphere containing from about 300 to about 1000 parts oxygen per million parts curing atmosphere. The resulting cured coating compositions are useful as protective coatings for many substrates.

Abstract: A process for producing a thermoformable acrylic sheet comprising polymerizing an acrylic monomer in the presence of 0.02 - 3.0% by weight of a cross-linking agent, the reaction conditions being such that the fully polymerized sheet would have a reduced viscosity of 1.5 - 4.0 if cross-linking agent were absent.

Abstract: A process for producing molded product composed of crosslinked resin or coated material composed of crosslinked resin on a substrate which comprises blending a polyolefin-series resin, a compound represented by the formulaX -- Y.sub.m Iwherein X is a group not containing an acetylenic linkage, Y is a group containing an acetylenic linkage and m is an integer of 1 or more, which is compatible with the resin at a room temperature or an elevated temperature, and a compound selected from the group consisting of an amino compound represented by the formula ##STR1## wherein each of R.sub.1 and R.sub.2 is independently substituted or non-substituted aliphatic hydrocarbon, substituted or non-substituted alicyclic hydrocarbon, or substituted or non-substituted aromatic hydrocarbon, provided that at least one of R.sub.1 or R.sub.2 is substituted or non-substituted aromatic hydrocarbon, an amino compound represented by the formula ##STR2## wherein each of R.sub.3, R.sub.4 and R.sub.

Abstract: A carboxyl containing polymer is either prepared in the presence of a polyepoxide or reacted with a polyepoxide. The polymer has sufficient acid groups to react with only about 1 to 10 percent of the epoxide (oxirane) groups. The remaining epoxide groups are reacted with an unsaturated monocarboxylic acid such as acrylic or methacrylic acid to form a radiation curable resin.

Abstract: A multicomponent polymer blend composition is prepared by intimately mixing a polycarbonate, a selectively hydrogenated monoalkenyl arene-diene block copolymer, and at least one dissimilar engineering thermoplastic resin under such conditions that at least two of the polymers form at least partial continuous network phases which interlock with the other polymer networks and therefore results in a desirable balance of properties. These blends have an unobviously high heat distortion temperature relative to the improved impact strength.

Abstract: Radiation curable pressure sensitive adhesive composition comprises: a polyoxyalkylene homo- or copolymer which is either a polyoxyethylene homopolymer or a poly (oxyethylene - oxypropylene) copolymer, or mixture thereof, having a molecular weight of from 1,700 to 90,000, in which at least 40 percent by weight of the oxyalkylene units are oxyethylene units; a liquid carbamyloxy alkyl acrylate; and, optionally, a photoinitiator.

Abstract: Photocurable polyester resin compositions are provided which are adapted for use in coating applications. The polyester resin compositions are air-uninhibited and are low energy photocurable at room temperature as substantially 100% solids systems. The photocurable polyester resin compositions are cured by exposure to activating light, without the necessity of incorporating any additional ingredients in the polyester compositions.Each photocurable polyester resin composition comprises a prepolymer(A) containing maleate and/or fumarate groups, and allyl ether groups; a solvent(B) which is a non-volatile polymerizable ester of acrylic or methacrylic acid derivative; and an organic polymerization initiator(C) which is photosensitive in the presence of oxygen.