Abstract:
An organic polar solvent-soluble aromatic polyamide-imide having therein aromatic nuclei linked at their respective 1 - and 3 -positions and having therein amide linkages and terminal groups partially substituted with cinnamate groups is found to impart excellent heat resistance and insulating property to a photoresist composition produced therefrom.
Abstract:
Energy curable compositions which can be cured in the presence of air by exposure to actinic radiation contain at least one unsaturated urethane oligomer, said oligomer comprising the reaction product of at least one unsaturated active hydrogen-containing compound; at least one polyisocyanate; and at least one polyetherester, said polyetherester having in its main chain the residue of at least one poly(alkylene oxide) polyol.
Abstract:
Photosensitive polyamide resin composition which can be developed with water to give a relief printing plate having an excellent moisture resistance, comprising 30 to 90% by weight of a water-soluble polyamide having ammonium type nitrogen atoms and 5 to 70% by weight of a photopolymerizable unsaturated compound prepared by reacting (meth)acrylic acid (I) and a polyglycidyl ether of an aliphatic polyvalent alcohol (II) in an equivalent ratio of 0.5.ltoreq.(I)/(II).ltoreq.2.0, and 0.01 to 10% by weight of a photopolymerization initiator.
Abstract:
Non-toxic tertiary amines having very low vapor pressures and substantially insolubility in water and fats are employed as free radical catalyst activators for adhesive compositions comprising polyurethane polymers or elastomers dissolved in an addition polymerizable combination of an acrylic or methacrylic monomer, a copolymerizable monomer containing a free carboxylic acid group and a non-activated free radical polymerization catalyst.
Abstract:
Photopolymerizable compositions for the manufacture of relief printing plates, especially relief plates for making mats, comprising an alcohol-soluble linear polyamide, a photoinitiator and a mixture of (a) a diether or triether obtained from 1 mole of an aliphatic diol or triol and from 2 to 3 moles of N-hydroxymethylacrylamide or N-hydroxymethylmethacrylamide and (b) an unsaturated ester-urethane obtained from 1 mole of toluylene diisocyanate and 2 moles of a hydroxyalkyl acrylate or methacrylate, (a) and (b) being mixed in specific ratios.
Abstract:
An aqueous coating composition comprises a polymer having pendant mercaptan groups and cross-linking agent having alpha-, beta-ethylenically unsaturated carbonyl groups in aqueous dispersion. In a preferred embodiment, the coating composition serves as a cathodic electrocoating composition.
Abstract:
A process for the vapor phase graft copolymerization of a monomer vapor onto a polymeric substrate in the presence of a source of light at low energy levels and a photosensitive vapor (e.g. a diketone) activated by such low energy. The product of said process.