Abstract:
The invention relates to a composition comprising 1 to 70 wt % of at least one copolymer obtainable by polymerizing a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical from the series carboxylic acid, carboxylic salt, carboxylic ester, carboxylic amide, carboxylic anhydride, and carboxylic imide, and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, 0.01 to 10 wt % of at least one emulsifier, and 30 to 98 wt % of at least one hydrocarbon liquid at 20° C. or a hydrocarbon mixture. Also disclosed are a process for preparing the composition, and a pulverulent mixture comprising the composition of the invention.
Abstract:
The present invention relates to a method for the production of a solvent-stable polymer membrane, in which a poly(meth)acrylonitrile-comprising solution which comprises, at the same time, a crosslinker, is used. The solution can be poured as a film and the film can be crosslinked. Likewise, it is possible to spin a hollow thread membrane from the solution and subsequently to crosslink this. The thereby produced polymer membrane based on poly(meth)acrylonitrile or copolymers derived herefrom is distinguished by a crosslinking configured throughout. In addition, a solution is described, comprising a solvent and also, dissolved therein, a poly(meth)acrylonitrile or copolymer derived herefrom and also a crosslinker for the polyacrylonitrile which is suitable for the method according to the invention for the production of the polymer membranes according to the invention.
Abstract:
A flame resistant polymer is obtained by reacting polyacrylonitrile with amine and nitro compounds, the polyacrylonitrile being polymerized by aqueous suspension polymerization using a redox initiator and containing an S component at an amount of 3,000 μg/g or less. A PAN-based polymer in which both yarn producing properties and flame resistance are improved can be realized.
Abstract:
The invention relates to a composition comprising 1 to 70 wt % of at least one copolymer obtainable by polymerizing a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical from the series carboxylic acid, carboxylic salt, carboxylic ester, carboxylic amide, carboxylic anhydride, and carboxylic imide, and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, 0.01 to 10 wt % of at least one emulsifier, and 30 to 98 wt % of at least one hydrocarbon liquid at 20° C. or a hydrocarbon mixture. Also disclosed are a process for preparing the composition, and a pulverulent mixture comprising the composition of the invention.
Abstract:
A low damping high strength polymer with a blend of a terpolymer and a tetrapolymer utilizing ethylene, propylene, and non-conjugated dienes. This polymer allows for the creation of products with high diene contents and broad molecular weight distributions while utilizing a continuous flow reactor and a known catalyst. The polymer allows for these products to be made without gelling or fouling of the reactor, which are problems known in the art.
Abstract:
Hydroxypolyamides, hydroxypolyamide products, and post-hydroxypolyamides are disclosed as gel forming agents. Hydroxypolyamides and post-hydroxypolyamides are prepared from known methods. Hydroxypolyamide products are produced from a modified polymerization procedure which utilizes strong base for deprotonation of ammonium salts from the esterification of stoichiometrically equivalent polyacid:polyamine salts. The hydroxypolyamide products are capable of gel formation at lower concentrations than hydroxypolyamides and post-hydroxypolyamides from the known methods of preparation, and are therefore superior gel forming agents.
Abstract:
The present invention is directed to a pneumatic tire having a rubber component including(A) 100 parts by weight (phr) of a rubber containing olefinic unsaturation;(B) from 50 to 100 phr of silica;(C) from 1 to 40 phr of a polyoctenamer.
Abstract:
The present invention encompasses a one-pack binder for heat-seal applications, useful for sealing polyester films, especially polyethylene terephthalate (PET) films, to polystyrene, PVC and polyester receptacles. Said polyesters may in particular be polyethylene terephthalate (PET) or polylactic acid (PLA). The binders here are particularly notable not only for good seal strengths but also for high transparency and excellent application qualities. A key aspect of the invention is the facility to seal without adding adhesion promoters, especially polyester- or polyvinyl chloride (PVC)-based adhesion promoters, while attaining, with respect to PS and PET receptacles, barrier and seal properties that at least match and sometimes exceed those of existing heat-seal systems available on the market.
Abstract:
The invention relates to a non-aqueous sound-deadening composition, comprising (a) a non-pulverulent polyacrylate binder having a K value in the range of 10 to 35, measured as a 1% solution in tetrahydrofuran; (b) inorganic fillers; and a free-radically polymerizable compound which comprises at least one free-radically polymerizable C-C double bond and has a boiling point at normal pressure of greater than 160°C. The invention also relates to a method for damping vibrations or oscillations in vehicle and machine components using the sound-deadening composition according to the invention.