摘要:
The present invention provides a 1,4-cis-polybutadiene which has a high linearity with a stress/relaxation (S/R) value of greater than 1 at 100°C, thereby being capable, when applied to a rubber composition, of reducing resistance characteristics, in particular rolling resistance or rotation resistance, and significantly improving fuel efficiency characteristics, and a rubber composition comprising the same.
摘要:
The invention relates to a method for synthesizing a polymer bearing one or more pendant hydroxyaryl groups comprising the reaction of a polymer bearing one or more pendant epoxide functions with a nucleophilic compound simultaneously bearing the hydroxyaryl group and bearing a nucleophilic function selected from the group formed by the primary amine function, the secondary amine function, the carboxylic acid function and the ionic form thereof. The invention also relates to the polymer, in particular an elastomer, derived from this method, and also to a rubber composition containing same.
摘要:
The present invention relates to an ethylene/α-olefin copolymer comprising: units derived from ethylene; and units derived from at least one α-olefin; wherein the ethylene/α-olefin copolymer has a density in the range of from 0.90 to 0.94 g/cc; a melt index (I 2 ) in the range of from 0.05 to 50 dg/min; an Mw/Mn of from 3 to 5; and from 300 to 500 vinyl unsaturations per 1,000,000 carbon atoms in the ethylene/α-olefin copolymer.
摘要:
Provided is a method for producing an anionic polymer in an industrially advantageous manner, whereby at the time of anionically polymerizing monomers using a solvent whose boiling point at atmospheric pressure is higher than the polymerization temperature, temperature control can be achieved by quickly removing the heat of the polymerization reaction using a simple device. The method for producing an anionic polymer includes anionically polymerizing a conjugated diene, an aromatic vinyl compound, or a mixture thereof under a condition where the amount of an inert gas present with respect to 1 kg of a solvent whose boiling point at atmospheric pressure is higher than the polymerization temperature is 20 mmol or less.
摘要:
The present invention aims to provide a polyrotaxane-containing composition having excellent transparency. The present invention relates to a polyrotaxane-containing composition including: a polyrotaxane that has a cyclic molecule, a linear molecule threading through a cavity of the cyclic molecule in a skewered manner, and capping groups capping both ends of the linear molecule; and an alkyl (meth) acrylate that has a C4-C18 alkyl group, the polyrotaxane having at least one cyclic molecule that has a C4-C18 alkyl group.
摘要:
A process for preparing an acrylic powder coating resin system includes polymerizing at least one acrylic monomer in a non-aqueous solvent in the presence of a hydrophobic submicron particle and an initiator, as well as powder coating compositions prepared from the acrylic powder coating resin system.
摘要:
A method for producing a polymer, which contains: bringing a monomer containing a vinyl bond into contact with a compressive fluid and melting or dissolving the monomer containing a vinyl bond, followed by carrying out addition polymerization of the monomer containing a vinyl bond in the presence of an initiator.
摘要:
Die Erfindung betrifft epoxygruppenhaltige Ethylen-Vinylacetat-Copolymere mit einem Gehalt an einpolymerisiertem Vinylacetat von mindestens 35 Gew.-% einem Gehalt an einpolymerisiertem Ethylen von mindestens 10 Gew.-%, sowie einem Gehalt an einpolymerisierten epoxygruppenhaltigen Monomeren von 0,5 bis 6,2 Gew.-%, ein Verfahren zu deren Herstellung sowie deren Verwendung und daraus hergestellte vulkanisierbare Zusammensetzungen, ein Verfahren zu deren Vulkanisation, die dadurch erhältlichen Vulkanisate und deren Verwendung.