摘要:
The present invention relates to a rapidly curable, silicone-free release coating composition comprising (a) between about 50 and about 95 wt. % of a vinyl ether having the formula C.sub.n H.sub.2n+1 O--CH.dbd.CH.sub.2 wherein n has a value of from 8 to 20, optionally containing a cationically polymerizable comonomer; (b) between about 5 and about 50 wt. % of a multifunctional vinyl ether monomer and (c) between about 0.1 and about 10 wt. % of an onium salt photoinitiator.
摘要:
The present invention is directed to an aqueous coating composition, comprising:a) an aqueous nonionic dispersion of a polymer selected from the group consisting of a acrylic resin, polyurethane resin and mixtures thereof;b) a nonionic water soluble polymer having a molecular weight of from about 3,000 to about 200,000 daltons;c) pigments; andd) optionally additives selected from the group consisting of crosslinkers, organic solvents, surfactants, rust inhibitors, catalysts, and mixtures thereof.The new aqueous coating composition is stable in the presence of acids and bases especially with the cure of crosslinkers.
摘要:
A magnetic recording medium, produced by preparing a resin solution for magnetic paint having as a main component thereof a copolymer of (A) vinyl chloride, (B) a vinyl carboxylate, (C) an unsaturated carboxylic acid and (D) an unsaturated carboxylic anhydride, containing 50 to 80% by weight of (A) based on the total of the amounts of (A) and (B), 60 to 90% by weight of (D) based on the total of the amounts of (C) and (D), and 1 to 5 parts by weight of the total of (C) and (D) based on 100 parts by weight of the total of (A) and (B) and having an average polymerization degree of 100 to 400, mixing 10 to 80% by weight of said resin solution weigh 90 to 20% by weight of a radiation-sensitive curing resin, blending the resultant mixture as a main component with a magnetic powder, applying the resultant magnetic paint to a non-magnetic substrate, and solidifying the applied layer of paint with radiation.
摘要:
A hydrocarbon resin consisting essentially of a copolymer of (A) an unsaturated chain hydrocarbon or a cyclic hydrocarbon having a vinylidene group and (B) 9,10-dihydrodicyclopentadiene or its derivative, or a hydrocarbon resin modified by addition reacting an ethylenically unsaturated carboxylic acid or its anhydride, or hydrogen, to the above-mentioned copolymer. The hydrocarbon resin and the modified hydrocarbon resin have a high softening point and a low melt viscosity, and are suitable for use in adhesives and traffic paints.
摘要:
An aqueous emulsion comprising a polymeric resin prepared by polymerizing (a) at least one amino acid of either one of the formula: ##STR1## and the formula: ##STR2## with (b) at least one other polymerizable monomer in an aqueous medium, the component (a) and at least a portion of the component (b) being introduced separately into the reaction system.
摘要:
Ambient or low-temperature curable solutions or aqueous dispersions of (1) a polymer containing units polymerized from a monomer mixture of (a) from about 0.25% to about 30% by weight of a polymerizable aldehyde, and (b) at least one copolymerizable mono-ethylenically unsaturated monomer, with (2) a curing agent selected from the group of dicarboxylic acid bis-hydrazides, dicarboxylic acid bis-hydrazones, and acrylic oligomers and low molecular weight acrylic solution polymers containing a plurality of pendant hydrazide or hydrazone groups. The solutions or dispersions are useful as general industrial coatings, maintenance coatings, furniture and appliance coatings, heavy transportation coatings, automobile refinishes and plastics coatings.
摘要:
A film of excellent cutting property in the transverse direction which comprises a mixture of polypropylene and at least one ethylene polymer and satisfying the following requirements: 1. Ny - Nx = 6 .times. 10.sup.-.sup.3 .about. 25 .times. 10.sup.-.sup.3Wherein Nx is the refractive index in the machine direction and Ny is the refractive index in the transverse direction; 2. (Nx + Ny) .times. 0.5 - Nz .ltoreq. 0.012Wherein Nz is the refractive index in the vertical direction and Nx and Ny are each as defined above;3. break elongation in the machine direction = 150 .about. 800 %; and4. no substantial necking is seen on the surface thereof.