Abstract: The present invention provides a novel acrylic/modified silicone room temperature-curable resin composition that serves as a material for sealants having high modulus and high strength after curing, and a cured product thereof. The room temperature-curable composition includes: a (meth)acrylate ester polymer (A) having a specific silicon-containing functional group and having an alkyl (meth)acrylate ester monomer unit in its molecular chain; and a polyoxyalkylene polymer (B) having a specific silicon functional group.

Abstract: The invention relates to a process for preparing (meth)acrylate-based ABA triblock copolymers with a silyl functionalization of the A blocks.

Abstract: The present invention relates to modified polyolefins having a propylene content of at least 50 ma-% and a maximum of 75 ma-%, being determined by means of 13C-NMR spectroscopy, and having a poly(ethylene) triad content of a maximum of 2.5 ma-%, being determined by means of 13C-NMR spectroscopy, relative to the total detected ethylene content, a melting heat of at least 9 and a maximum of 20 J/g, determined by means of differential calorimetry, and a solubility in xylol at ambient temperature of at least 96 ma-%, and a solubility in THF at ambient temperature of at least 67 ma-%, wherein one or multiple silanes are grafted onto the polymer. The invention further relates to a method for the production of the polyolefins, and to the use thereof, particularly in or as an adhesive.

Abstract: Compositions comprising an acidic polymer compound and a (meth)acrylic copolymer prepared from reactants comprising at least one aliphatic, aromatic, or aralkyl (meth)acrylate monomer and at least one ethylenically unsaturated monomer having a polar group or a siloxane group, and dental filling compositions comprising the composition, and methods of using the compositions

Abstract: The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt. % or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is present in the composition in an amount of from 0.01 to 2 wt. %.

Abstract: The invention relates to a hot-melt adhesive substance for sticking together fibrous materials such as matted nonwovens or woven textiles with smooth substrate surfaces, such as plastic or metal films, and for laminating said materials. Said substance is characterized in that it contains at least one polyolefin which has been produced by polymerization in the presence of metallocene as a catalyst and has a ring/ball softening point of between 50 and 165° C. and a melting viscosity, measured at a temperature of 170° C., of between 20 and 40,000 mPa·s. The hot-melt adhesive substance can also contain at least one adhesive component and is used in a quantity of between 3 and 6 g/m2, preferably between 4 and 5.5 g/m2, for sticking a film to a nonwoven material during the production of hygiene items such as disposable nappies, baby nappies, incontinence products, panty liners and/or sanitary towels.

Abstract: The present invention relates to a heterophasic polypropylene resin comprising a propylene homo- or copolymer matrix (A) and an ethylene-propylene rubber phase (B) dispersed within the matrix, wherein the heterophasic polypropylene resin has a fraction insoluble in p-xylene at 25° C. (XCU) with an intrinsic viscosity of 1.5 dl/g or less, determined according to DIN EN ISO 1628-1 and -3 and an amount of propylene monomer units of at least 95 mol %, and a fraction soluble in p-xylene at 25° C. (XCS) with an intrinsic viscosity of 1.5 to 3.0 dl/g, determined according to DIN EN ISO 1628-1 and -3, and an amount of propylene monomer units of 50 to 75 mol %, and a MFR (2.16 kg, 230° C.) of more than 100 g/10 min, determined according to ISO 1133, a heterophasic polypropylene composition comprising such a resin, a process for preparing that resin, and an article made thereof.

Abstract: Rubber composition based on at least one diene elastomer, a polymeric filler as reinforcing filler and a coupling agent for bonding between the polymeric filler and the elastomer. The polymeric filler includes nanoparticles of a polyvinylaromatic (PVAr) carrying a functional group denoted by Z of formula a ?Si—X, X representing a hydroxyl or hydrolyzable group. The PVAr is especially a copolymer of styrene, ethylvinylbenzene, divinylbenzene and trimethoxysilylpropylacrylate or trimethoxysilylpropylmethacrylate, being in the form of nanobeads, the diameter of which is between 10 and 100 nm. Also described is a method of obtaining such a composition, and use of such a rubber composition for the manufacture of rubber articles, in particular tires or rubber semi-finished products intended for these tires, as well as a masterbatch including at least one diene elastomer and such a polymeric filler, and a method of obtaining such a masterbatch.

Abstract: The present invention relates to a polypropylene composition comprising: a matrix phase comprising a polypropylene homo- or copolymer (A); and a phase dispersed in said matrix phase comprising an olefin homo- or copolymer (B) having hydrolysable silicon-containing groups, and an inorganic filler material (C) containing on its surface silanol groups or precursors thereof, and having a specific surface BET of 30 to 300 m2/g, determined according to ISO 9277:1995, to an article comprising such a composition, and to the use of such a composition for the production of an article.

Abstract: An adhesive composition includes a blend of a pressure sensitive adhesive and an additive. The pressure sensitive adhesive includes a (meth)acrylate polymer. The additive includes a copolymer with a vinyl polymeric backbone that includes at least one free radically polymerizable vinyl monomer A and at least one reinforcing comonomer B, wherein B is present at 0 to about 20% by weight of the copolymer, and a pendant polysiloxane monomer grafted to the backbone. The adhesive composition may optionally be crosslinked. The adhesive composition may be applied to a film to form a graphic article. These graphic articles may be applied to a substrate without liquid application aids.

Abstract: A clear, impact modified, heat resistant polyvinyl chloride composition is provided comprising (a) at least one polyvinyl halide; (b) at least one clear impact modifier possessing a refractive index which is not more than about 2% above or below the refractive index of the polyvinyl halide; and (c) at least one clear heat modifier comprising a terpolymer obtained by the copolymerization of a vinyl aromatic monomer, an acrylonitrile and an alkyl acrylate or alkyl methacrylate, wherein the terpolymer possesses a refractive index which is not more than about 2% above or below the refractive index of the polyvinyl halide and possesses a weight average molecular weight ranging from about 75,000 to about 400,000.

Abstract: Compositions comprising at least 60 weight percent, based on the total weight of polymers, have at least one silane crosslinkable polyolefin resin and up to about 40 weight percent, based on the total weight of polymers, of at least one polyolefin elastomer resin, wherein the polyolefin polymer elastomer resin has density of less than or equal to about 0.89 g/cm3 and a melt index, I2, of less than about 50 g/10 mm. and which has been prepared using at least one metallocene catalyst provide improved flexibility, especially low temperature flexibility, while maintaining suitable cure performance and strength compared to the silane crosslinkable polymer resin alone. This composition may be used in cables for low temperature service applications.

Abstract: The present disclosure relates to novel block polymers comprising particular silicone monomers and monomers of formula: CH2?C(R1)—COOR2 wherein R1 is chosen from a hydrogen atom and a methyl group and R2 is chosen from C4 to C12 cycloalkyl groups. The present disclosure also relates to cosmetic or pharmaceutical compositions comprising these polymers, and also to a cosmetic treatment method using them.

Abstract: A method for preparing a polymeric material including a multiblock copolymer with n blocks, where n is an integer no lower than 2, which method comprises at least one cycle of steps including (a) a step of synthesising a block by performing controlled free-radical polymerisation of one or more free-radical polymerisable monomers, and (b) a step of polymerising the monomers that were not converted during step (a) into a polymer having a number-average molecular weight lower than the number-average molecular weight of said block, wherein said cycle of steps is carried out at least for the (n?1) first blocks.

Abstract: Novel methods for forming copolymers, including block copolymers, which comprise one or more olefin units and one or more protected or unprotected hydroxystyrene units are provided.

Abstract: An object of the present invention is to provide a resin composition suitable for adhering a layer of a base material, such as polyolefins, and a layer of a barrier resin, such as ethylene-vinyl alcohol copolymers. The object is achieved by a resin composition (A) including: a thermoplastic resin (a1) having functional groups of at least one kind selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, a polyolefin (a2) not having the functional groups, and a thermoplastic elastomer (a3) not having the functional groups, wherein the thermoplastic resin (a1) is contained 1 to 20 parts by mass and the thermoplastic elastomer (a3) is contained 3 to 50 parts by mass in terms of 100 parts by mass of the polyolefin (a2).

Abstract: The suspended solids content of a process stream in a process for digesting bauxite ore to produce alumina is reduced by contacting the stream with silicon-containing polymers.

Abstract: A conjugated diene rubber composition comprising (A) 5-95 wt. % of a conjugated diene rubber having a structure such that at least three conjugated diene polymer chains are bonded together through a specific polyorganosiloxane having groups containing alkylene glycol repeating units and (B) 95-5 wt. % of a conjugated diene rubber having reacted with a compound having in the molecule a functional group selected from >C?O, >C?S, amino, imino, epoxy, pyridyl, alkoxyl and halogeno. This rubber composition gives, when silica is incorporated therein, a vulcanizable rubber composition having good processability and giving a rubber vulcanizate exhibiting sufficiently reduced heat build up, and having good wet-grip property and good abrasion resistance.

Abstract: Meta-block copolymers and a process for preparing a product mixture comprising meta-block copolymers by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more ethylenically unsaturated polymers, said unsaturation defining one or more polymer segments in each ethylenically unsaturated polymer, at least one polymer segment in at least one ethylenically unsaturated polymer being chemically distinguishable from at least one polymer segment in at least one other ethylenically unsaturated polymer, characterized in that each meta-block copolymer in the product mixture comprises a random distribution of said chemically distinguishable polymer blocks.

Abstract: A multiphase polymeric material comprises a first rigid continuous phase and a second elastic phase dispersed in the first phase. The multiphase polymeric material may be formed into polymeric strips and used to make a cellular confinement system which is suitable for use in cold areas.

Abstract: Disclosed is a composition, which may be melt extrudable, comprising polyvinylpyrrolidone-iodine complex in at least one polymer. Also disclosed is a process for preparing the composition or shaped articles, including films, made therefrom. The composition can be extruded, blown film extruded, or molded into films, fibers, tubing, and shaped articles thermoformed or molded shapes, including containers, usable, for instance, as catheters, in delivery systems for drugs and nutrients, specimen containers, or surgical devices.

Abstract: Controlled architecture copolymers comprise at least one block A obtained by polymerizing a mixture of ethylenically unsaturated monomers (A0) not including vinyl phosphonate monomers and at least one block B obtained by polymerizing a mixture of ethylenically unsaturated monomers (B0) including at least 50 mol % of at least one monomer B1 bearing at least one vinyl phosphonate function.

Abstract: Rubber composition based on at least one diene elastomer, a polymer filler as reinforcing filler, a coupling agent providing the bond between the polymer filler and the elastomer. The polymer filler comprises nanoparticles of non-aromatic vinnyl polymer (“NAVP”) bearing a function Z of formula ?Si—X, X representing a hydroxyl or hydrolysable group. The NAVP is in particular a copolymer of methyl methacrylate, trimethoxysilylpropyl methacrylate and ethylene glycol dimethacrylate, in the form of nanobeads the diameter of which is between 10 and 100 nm.

Abstract: A resin composition for vibration damping material for a vibration damping material exhibiting high vibration damping performance in a wider temperature range and a vibration damping material using the same are provided. The resin composition contains 100 parts by weight of a resin component A as a matrix and 5 to 300 parts by weight of a resin component B dispersed in the matrix. The resin component B has two or more cyclic structures selected from the group consisting of an aromatic hydrocarbon group, an aliphatic cyclic hydrocarbon group, and a heteroaromatic group, and is in a glassy state at use temperature.

Abstract: The present invention relates to a process for synthesizing a copolymer having controlled architecture, comprising at least one block A obtained by the ITP polymerization of a mixture of ethylenically unsaturated monomers (A0), containing no monomers having vinyl phosphonate functions, and at least one block B obtained by polymerizing a mixture of ethylenically un-saturated monomers (B0) containing at least one monomer B1 which carries at least one vinyl phosphonate function. The present invention also relates to a process for synthesizing a copolymer having controlled architecture, of the telomer type, comprising at least one chain B obtained by polymerizing a mixture of ethylenically unsaturated monomers (B0) containing at least one monomer B1 which carries at least one vinyl phosphonate function, by ITP polymerization; to the telomer obtainable; and to the uses thereof.

Abstract: Nanoparticles of a functionalized and crosslinked polyvinylaromatic (PVAr) that may be used as reinforcing filler in a polymeric composition, the PVAr being a copolymer of at least: a vinylaromatic comonomer “A”; a comonomer “B” carrying a functional group denoted by Z of formula ?Si—X, X representing a hydroxyl or hydrolyzable group; a crosslinking comonomer “C” which is at least bifunctional and polymerizable by means of an addition reaction, it being possible for comonomer C to be vinylaromatic, in this case identical or different to comonomer A or non-vinylaromatic. The PVAr comprises, for example, a copolymer of styrene, ethylvinylbenzene, divinylbenzene and trimethoxysilylpropyl(meth)acrylate, being in the form of nanobeads, the diameter of which is between 10 and 100 nm. This PVAr filler, thanks to a very low density, allows the weight of polymeric compositions, especially elastomer compositions, to be reduced without degrading the reinforcement, and with an notable reduction in hysteresis.

Abstract: The present invention provides a curable composition for use in retarding the formation of biofilms. The curable composition comprises a polymer derived from ethylenically unsaturated units having pendent long-chain aliphatic groups; ethylenically unsaturated units having pendent poly(oxyalkylene) groups; and ethylenically unsaturated units having pendent substrate-reactive groups; and a crosslinking agent.

Abstract: A micropowder composition containing a granular PTFE micropowder, a fine powder PTFE micropowder, and a fine powder molding resin provides mixtures with fluoroelastomers containing copolymerized and alternating units of tetrafluoroethylene and propylene that provide molded articles having improved surface smoothness characteristics and tear resistance on molding. Processes for mixing additives with fluoroelastomers by adding or mixing the fluoroelastomer with the additives in the presence of micropowder PTFE compositions.

Abstract: This invention is directed toward interactive segmented block copolymers useful to treat the surface of a substrate by means of interactive functionalities of the interactive segmented block copolymer material binding with complementary surface functionalities of the polymer substrate.

Abstract: This invention relates to a composition comprising a functionalized C3 to C40 olefin polymer comprising at least 50 mol % of one or more C3 to C40 olefins, and where the olefin polymer, prior to functionalization, has: a) a Dot T-Peel of 1 Newton or more on Kraft paper; b) an Mw of 10,000 to 100,000; and c) a branching index (g?) of 0.98 or less measured at the Mz of the polymer when the polymer has an Mw of 10,000 to 60,000, or a branching index (g?) of 0.95 or less measured at the Mz of the polymer when the polymer has an Mw of 10,000 to 100,000; and where the C3 to C40 olefin polymer comprises at least 0.001 weight % of an functional group, preferably maleic anhydride. This invention further relates to blends of such functionalized polymers with other polymers including non-functionalized C3 to C40 olefin polymers as described above.

Abstract: A multiphase polymeric material comprises a first rigid continuous phase and a second elastic phase dispersed in the first phase. The multiphase polymeric material may be formed into polymeric strips and used to make a cellular confinement system which is suitable for use in cold areas.

Abstract: A material combination that is designed to replace current high-density polyethylene (“HDPE”) materials for use with electrical transmission comprising at least one low density, cross-linkable polymer resin, at least one high density polymer, a cross-linking catalyst and an optional color masterbatch The material combination provides all of the existing properties found in the HDPE material with the addition of a higher temperature capability at/above 250° C.

Abstract: Resin blends useful for pipe and blow-molded articles are disclosed. The blends comprise a low-molecular-weight, high-density polyethylene and a high-molecular-weight, low-density ethylene copolymer. The high-molecular-weight component is made with a bridged indenoindolyl Group 4 metal complex having open architecture. Blends of the invention uniquely have high molecular weight (Mw>200,000) and low levels of long-chain branching. A quick, convenient approach for estimating levels of long-chain branching in polyethylenes from gel permeation chromatography and dynamic oscillatory rheometry (“viscosity enhancement factor”) is disclosed.

Abstract: Methods for the preparation of low surface energy block co-polymers are disclosed. The block co-polymers comprise at least two blocks, each of which comprises, in polymerized form, an acrylic monomer, a methacrylic monomer, or a mixture thereof. At least one block is a low surface energy block, which comprises, in polymerized form, a low surface energy monomer Low surface energy macroinitiators useful in forming the block co-polymers are also disclosed. The block co-polymers may be prepared by nitroxide mediated controlled free radical polymerization.

Abstract: The invention provides a comprising one or more ethylene interpolymers, and wherein the interpolymers, or the composition, has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein at least one ethylene interpolymer has an Rv from 0.3 to 0.99. The invention further provides a composition comprising at least one low molecular weight (LMW) ethylene interpolymer, and at least one high molecular weight (HMW) ethylene interpolymer, and wherein the composition has a melt viscosity from 1 to 30,000 cP at 177° C., and wherein the sum of the Rv from the low molecular weight interpolymer and the high molecular weight interpolymer is from 0.3 to 2. The invention further provides for processes of making such compositions, processes for functionalizing the interpolymer(s) of such compositions, and articles comprising at least one component prepared from an inventive composition.

Abstract: The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid comprises at least one functionalized polymer having at least one anhydride group. The invention also provides for articles such as innerliners for tires produced from the aforementioned elastomeric compositions.

Abstract: Disclosed herein are novel block (co)polymers comprising from 35 to 100 wt. %, based on the weight of the block containing them, of silicone monomers chosen from a given list. Also disclosed herein are cosmetic and pharmaceutical compositions containing said polymers, as well as a method of cosmetic treatment employing them, and a method of preparation of said polymers.

Abstract: This invention provides a multimodal brominated anionic styrenic polymer composition. The composition is comprised of at least two brominated anionic styrenic polymer weight fractions which have different weight average molecular weights. Also provided by this invention are processes for producing multimodal brominated anionic styrenic polymer compositions.

Abstract: The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.

Abstract: The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or air barrier articles. The compositions and articles made from those compositions of the invention can be described in any number of embodiments. In one embodiment, the composition suitable for an abrasion resistant article includes from 5 to 100 phr of a terpolymer of C4 to C7 isoolefin derived units, p-alkylstyrene derived units and p-bromomethylstyrene derived units; at least one filler such as carbon black, silica, precipitated silica, clay, or combinations thereof, and from 0.1 to 3 phr of at least one thiourea. The composition can also include from 5 to 80 phr of at least one elastomer selected from natural rubbers, polyisoprene rubber, styrene butadiene rubber (SBR), polybutadiene rubber, isoprene butadiene rubber (IBR), styrene-isoprene-butadiene rubber (SIBR), butyl rubber, halogenated butyl rubber, butadiene-acrylonitrile-styrene rubber (SNBR), and mixtures thereof.

Abstract: A polymer blend composition having improved physical properties comprises (i) 70% to 95% by weight of a blend of a styrene maleic anhydride (SMA) copolymer, e.g., rubber modified styrene maleic anhydride copolymer and a styrene polymer e.g., polystyrene or high impact polystyrene (HIPS) and (ii) from 30% to 5% by weight of an acrylic copolymer, e.g., a rubber modified styrene methyl methacrylate (SMMA) copolymer which acts as a compatibilizer for the SMA copolymer, which may be a regrind, and the styrene polymer. This polymer blend composition has good impact strength and elongation properties. The weight percent ratio of the SMA copolymer to styrene polymer in component (i) may be 95:5 or 5:95 based on the total weight of component (i). The polymer blend composition may be extruded into sheet and thermoformed into an article, e.g., a container for packaged foods or may be co-extruded to produce a laminated article.

Abstract: Processable rubber compositions comprising a vulcanized elastomer dispersed in a matrix of a thermoplastic polymeric material. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The compositions are made by combining a curative, an uncured fluorocarbon elastomer, and a reactive oligomer, and heating the mixture at a temperature and for a time sufficient to effect vulcanization of the elastomeric material and polymerization of the oligomer, while mechanical energy is applied to mix the mixture during the heating step. Shaped articles such as seals, gaskets, O-rings, and hoses may be readily formed from the rubber compositions according to conventional thermoplastic processes such as blow molding, injection molding, and extrusion.

Abstract: Cellulosic-reinforced composites having increased resistance to water absorption are provided. The improved composites are obtained using a mixture of high density polyethylene and silane copolymer with the cellulosic filler.

Abstract: The present invention includes elastomeric compositions of BIMS elastomers suitable for abrasion resistant, high traction and/or barrier articles. The compositions and articles made from those compositions of the inventions can be described in any number of embodiments. In one embodiment, the composition suitable for an abrasion resistant article includes from 5 to 100 phr of a terpolymer of C4 to C7 isoolefin derived units, p-alkylstyrene derived units and p-bromomehtylstyrene derived units; at least one filler such as carbon black, silica, precipitated silica, clay, or combinations thereof; and from 0.1 to 3 phr of at least one thiourea.

Abstract: A mixture of at least two thermoplastic particles having reactive grups which when melted and mixed react to form a high molecular weight polymer. The blend of particles when molten is particularly useful in forming double insulating glass or plastic panels.

Abstract: Acrylic compositions which can be processed into thermoformable acrylic sheet material with variegated non-homogeneous granite appearance are disclosed. The acrylic compositions comprise a matrix of polymethyl methacrylate having dispersed within it particles of a thermoplastic such as polymethyl methacrylate and one or more comonomers wherein the thermoplastic is in the shape of thin wafers 0.05 to 9.53 mm thick, 0.18 to 12.8 wide and 0.18 to 7.62 mm long.

Abstract: Flame retardant crosslinkable polyolefin compositions useful for the production of films, sheets and membranes are provided. The compositions are comprised of ethylene-silane copolymer, plastomer, flame retardant filler and, optionally, silanol condensation catalyst.

Abstract: The invention relates to a novel, impact-resistant polymer based on PMMA.

Abstract: A primer composition comprises (A) a vinyl copolymer obtained through copolymerization of (a-1) a UV-absorbing vinyl monomer, (a-2) an alkoxysilyl group-containing vinyl monomer, and (a-3) another copolymerizable monomer, (B) a curing agent, and (C) a thermoplastic vinyl resin having a Tg of at least 80° C. Polycarbonate resin articles, when covered with an undercoat of the primer composition and an overcoat of an organopolysiloxane composition, exhibit improved transparency, mar resistance, weather resistance, and chemical resistance and find outdoor use as vehicle and building windows and windshields.

Abstract: The present invention relates to a process for producing a bimodal or multimodal mixture of amorphous polyolefins having a different molar mass, in which at least one amorphous polyolefin having a high molar mass is brought into contact and mixed with at least one amorphous polyolefin having a low molar mass in solution and the solvent is subsequently removed.