Abstract: Linear acrylamide copolymer compounds which can comprise monomeric components comprising at least one N-substituted moiety capable of physical cross-linking, and related compositions and methods of use.

Abstract: Copolymers are manufactured to include a zwitterionic monomer (e.g., methacryloyloxyethyl phosphorylcholine monomer), a dihydroxyphenyl derivatized monomer, and optionally one or more additional monomers. The dihydroxyphenyl derivatized monomer gives the copolymers excellent adhesion properties. Optional monomers include a cationic amino monomer, a hydrocarbon monomer, and/or a hydrophilic monomer. The copolymers are biocompatible and can be used with medical devices.

Abstract: A silicone composition is provided that is resistant to a hydrocarbon fluid, such as a transmission fluid, and other harsh environments when cured. The silicone composition includes a dihydroxy-terminated silicone fluid, a filler material and amine-cured cross-linking agent, the composition containing substantially no plasticizer, and wherein the cured composition can be utilized as a sealant that is resistant to exposure to transmission fluid and high temperatures for extended periods of time. The silicone composition provides effective sealant properties that withstand the foregoing conditions present in the transmission fluids. Methods of making and using the cured silicone sealants made from the present compositions are also provided.

Abstract: Disclosed is a fluorine-containing elastomer having a copolymerization composition containing (A) 72.8 to 74.0 mol % of tetrafluoroethylene, (B) 26.8 to 24.0 mol % of perfluoro(lower alkyl vinyl ether) or perfluoro(lower alkoxy-lower alkyl vinyl ether), and (C) 0.2 to 3.0 mol % of a perfluoro unsaturated nitrile compound, and having a Mooney viscosity ML1+10(121° C.) of 70 to 115. The fluorine-containing elastomer is compounded with a bisamidoxime compound, which is used as a vulcanizing agent, in an amount of 0.2 to 5 parts by weight based on 100 parts by weight of the fluorine-containing elastomer to form a fluorine-containing elastomer composition. The vulcanizate of the composition, even when used under plasma irradiation conditions or at temperatures as high as 300° C., can prevent weight loss caused by plasma irradiation and exhibits excellent heat resistance at temperatures as high as 300° C. or more.

Abstract: The invention provides a chlorinated ethylene-based polymer, process for preparing the same, and compositions and articles prepared from the same. The chlorinated ethylene-based polymer has a low residual crystallinity, for example, less than 8 percent, a relatively high crystallization temperature, Tc, for example greater than, or equal to, 25° C., and a medium weight average molecular weight, Mw, for example, less than, or equal to, 325,000 g/mole.

Abstract: The invention relates to a moisture cross-linkable composition usable as an adhesive or sealant which is very easy to use and exhibits excellent bonding performance. The composition is obtained by mixing 100 parts by weight of an organic polymer (A) with moisture cross-linkable reactive silane terminal functions and 1 to 70 parts by weight of an organic polymer (B) miscible at ambient temperature with polymer (A), selected from among polyesters, polyethers, polyurethanes, polyacrylates, polyethylenediimines, polycarbonates, polyureas or polyamides.

Abstract: The present invention relates to comb (block) copolymers obtainable by reacting I at least one (block) copolymer comprising polymerized, optionally substituted styrene and maleic anhydride units, which copolymer has been obtained by living, free-radical polymerization, with II at least one polyalkylene oxide monoamine comprising a primary amino end group at a reaction temperature of ?150° C. and by subsequent salification of at least 25 mol % of the free carboxyl groups of the reaction product at a reaction temperature of <100° C. and optionally after addition of H2O and to the use of these comb copolymers as wetting agents and dispersants.

Abstract: Acrylic polymers comprising a non-primary hydroxyl functional monomer and low Tg alkyl acrylate monomers are useful in adhesive compositions that find use in skin contact applications.

Abstract: The present invention relates to an ampholytic copolymer, to polyelectrolyte complexes which comprise such an ampholytic copolymer, and to cosmetic or pharmaceutical compositions which comprise at least one ampholytic copolymer or one polyelectrolyte complex.

Abstract: Dendritic macroinitiator compositions are provided comprising a compound of the general formula, Fx-[G-n]-I, where F is the chain end functional group of the dendrimer, x is the number of chain end functional groups, G is the dendrimer, n is the generation number of the dendrimer, and I is the initiating group. Hybrid dendritic-linear copolymers made from these macroinitators can act as highly efficient dispersing agents for a range of nanoparticles in matrix materials.

Abstract: A novel anion exchange polymer is provided. A method of making the anion exchange polymer includes reacting a tertiary amine, an acid inhibitor and a polyepoxide to form a quaternary ammonium monomer and polymerizing the quaternary ammonium monomer in the presence of a catalyst. The exchange polymer is prepared without using alkyl halides and can be used to make improved ion exchange materials that are chemically resistant and non-fouling.

Abstract: Fluorosilicon polymers are disclosed that are prepared by a process comprising reacting a) iodinated oligomers having copolymerized units of perfluoro(methyl vinyl ether) and vinylidene fluoride or tetrafluoroethylene that contain 40-90 mole percent copolymerized units of vinylidene fluoride or tetrafluoroethylene and 10-60 mole percent copolymerized units of perfluoro(methyl vinyl ether), said oligomers having two functional endgroups and having a number average molecular weight between 1000 and 25,000 with b) a methoxyvinyl silane or an ethoxyvinyl silane to form a silicon-containing polymeric adduct that is further reacted with an acid to form a crosslinked fluorinated polymer.

Abstract: To provide an electret having high stability with time and thermal stability of retained electric charge and having excellent charge retention performance, and an electrostatic induction conversion device comprising such an electret. This has been done by providing an electret obtained from a composition comprising a compound (A) having a molecular weight of from 50 to 2000 and having at least two polar functional groups, and a polymer (B) having a number average molecular weight of more than 2000 and having reactive functional groups reactive with the above polar functional groups and an electrostatic induction conversion device comprising such an electret.

Abstract: The invention relates to polymers useful as a papermaking additives. The invention also relates to methods for making and using such additives.

Abstract: An aqueous based concrete curing compound is made easily removable by including in the composition polyvinylpyrrolidone or other water-soluble, readily redissolvable, film-forming polymer resin.

Abstract: Methods for fabricating sublithographic, nanoscale microstructures in one-dimensional arrays utilizing self-assembling block copolymers, and films and devices formed from these methods are provided.

Abstract: The present disclosure relates to compositions comprising a copolymer that includes a first monomer and a second monomer that is different from the first monomer, wherein both the first and second monomer are selected from the group consisting of 3-sulfopropyl acrylate potassium salt, sodium acrylate, N-(tris(hydroxyl methyl)methyl)acrylamide, and 2-acrylamide-2-methyl-1-propane sulfonic acid. The present disclosure further relates to methods for preparing the copolymer compositions and shaped articles comprising the copolymers.

Abstract: A packer unit to be used in an annular blowout preventer. The packer unit includes an elastomer body including a compound of a carboxylated nitrile rubber (XNBR) base polymer having a polymer chain, and a quantity of fluorine atoms attached to the polymer chain. The compound includes between 50 and 60% XNBR, between 25 to 35% carbon black, and the rest includes other materials. The quantity of fluorine atoms displaces at least an equal quantity of hydrogen atoms from the polymer chain when the elastomer body is fluorinated.

Abstract: The present disclosure relates to compositions comprising a copolymer that includes a first monomer and a second monomer that is different from the first monomer, wherein both the first and second monomer are selected from the group consisting of 3-sulfopropyl acrylate potassium salt, sodium acrylate, N-(tris(hydroxyl methyl)methyl)acrylamide, and 2-acrylamideo-2-methyl-1-propane sulfonic acid. The present disclosure further relates to methods for preparing the copolymer compositions and shaped articles comprising the copolymers.

Abstract: Disclosed is a photo- and/or thermo-curable copolymer having polymerizable unsaturated groups in side chains, which is obtainable by reacting a copolymer (P) with an epoxy-containing polymerizable unsaturated compound (C), the copolymer (P) containing monomer units derived from a carboxyl-containing polymerizable unsaturated compound (A) and monomer units derived from at least one epoxy-containing polymerizable unsaturated compound (B) represented by following Formula (1) or (2), in which the epoxy group of the epoxy-containing polymerizable unsaturated compound (C) has been added to part of the carboxyl groups of the copolymer (P). In the formulae, Ras each represent hydrogen or hydroxyl-substituted or -unsubstituted alkyl having 1 to 4 carbon atoms; and Rbs each represent single bond or alkylene having 1 to 18 carbon atoms which may contain heteroatom(s).