摘要:
An adduct of a fulvene and unsaturated silane produced in a Diels-Alder reaction and the interpolymerization of the adduct with ethylene, with or without propylene, with or without a polyene, in the preparation of ethylene interpolymers.
摘要:
The improvement in the bonding relationship between glass fibers and elastomeric materials in the manufacture of glass fiberreinforced elastomeric products wherein individual glass fibers are impregnated with a composition containing a terpolymer formed by the interpolymerization of butadiene, styrene and a monomeric material which can be an amino silane containing ethylenic unsaturation or an amide formed by the reaction of an amino silane with polymerizable mono- and dicarboxylic acids.
摘要:
A process comprising solution interpolymerizing a pressuresensitive resin containing a monomer with an enolizable keto group, formulating the interpolymer solution with a chelate ester of orthotitanic acid to obtain a solution with stringiness index of less than 0.3 inches, and coating the solution on a substrate using a reverse roll coater or a gravure roll coater. The viscosity and flow properties of the solution are used advantageously in high-speed coating processes.
摘要:
Improved reaction system in which the reaction is cooled by vaporization of a volatile component, including at least two reaction vessels and a vapor feedback from a downstream reaction vessel to an upstream reaction vessel.
摘要:
This invention provides 3,3,3-trifluoro-2-trifluoromethyl propene/1,1-difluoroethylene copolymers additionally containing from about 0.1 to 30 mol percent of perhalogenated monomer selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene and mixtures thereof, and method for making them. Addition of the perhalogenated monomer reduces melting point and crystallization temperature of the copolymer, thereby improving its melt processing characteristics, without seriously deteriorating its good mechanical properties and chemical resistance.
摘要:
A method is described whereby olefin terpolymers, consisting of ethylene, an alpha olefin and a polyene having in the molecule, in addition to the double bond participating in the formation of the macromolecule, at least one conjugated double bond system, are stabilied against oxidative aging without destroying their characteristic high vulcanization rate by reacting them with a dienophilic agent represented by one of the following formulae:
WHEREIN R and R6 may be an alkyl, alkenyl, cycloalkyl, aryl or aralkyl radical having up to 8 carbon atoms, R1, R2, R3, R4 and R5 may be hydrogen or alkyl, aryl, cycloalkyl or aralkyl radicals having up to 8 carbon atoms, the R1-R2 and R-R pairs may be divalent radicals forming condensed rings.
摘要:
Water dispersible pressure sensitive adhesive compositions comprising ionomeric copolymers of hydrophilic and hydrophobic monomers. In their preferred form the compositions comprise a copolymer formed of an ionic monomer such as a water soluble alkali metal salt of an Alpha , Beta unsaturated monocarboxylic acid, a nonionic monomer such as a water soluble polyoxyalkylene ester of an Alpha , Beta unsaturated monocarboxylic acid, and copolymerizable monomers comprising an Alpha , Beta unsaturated monocarboxylic acid and a insoluble alkyl ester of such an acid. The compositions in dry form are normally tacky and substantially moisture stable. The compositions are useful in the making of various types of tapes, including transfer tapes.
摘要:
This application discloses acrylic fibers having high tenacity, a break elongation of 8-18% and a shrinkage in boiling water of 13-26% in combination with an X-ray porosity index less than about 1.5 in the void size range of each of 45-90A and 90-140A and a molecular orientation of at least about 66.5, the particular fiber having the chemical composition of 93-95% acrylonitrile, 5-7% methylacrylate and up to 0.5% sodium styrene sulfonate. The fibers are prepared by specific drawing, drying and redrawing steps.
摘要:
An improved carboxylic latex is produced by copolymerizing e.g. butadiene, styrene, acrylic acid and acrolein in an emulsion system comprising a synthetic emulsifier. The latex is suitable for treating fibrous materials e.g. textile and paper.
摘要:
Disclosed herein are oriented containers for food, beverages, and medicines wherein the container is the interpolymerization product of A. 65 to 78% by weight of acrylonitrile; B. from 3 to 10% by weight of an alkyl vinyl ether wherein the alkyl group contains from 1 to 2 carbon atoms; C. from 12 to 32% by weight of styrene. These containers exhibit improved toughness and good barrier properties.
摘要翻译:本文公开了用于食品,饮料和药物的定向容器,其中容器是A.65至78重量%的丙烯腈的互聚产物; B. 3至10重量%的烷基乙烯基醚,其中烷基含有1至2个碳原子; C,12〜32重量%的苯乙烯。