Abstract: A pressure-sensitive adhesive contains an acrylic triblock copolymer (I) at not less than 60% by mass based on the total mass of all solids contained in the pressure-sensitive adhesive, the acrylic triblock copolymer being represented by the formula A1-B-A2 wherein: A1 and A2 are each independently an alkyl methacrylate polymer block having Tg of not less than 100° C. and B is an acryl acrylate polymer block having Tg of not more than ?20° C.; the content of the polymer block B is 50 to 95% by mass; Mw is in the range of 50,000 to 300,000; and the molecular weight distribution is in the range of 1.0 to 1.5. Preferably, the acrylic triblock copolymer (I) is a combination of an acrylic triblock copolymer (Ia) having Mw of 50,000 to less than 100,000 and an acrylic triblock copolymer (Ib) having Mw of 100,000 to 300,000, in a mass ratio (Ia):(Ib) of 45:55 to 75:25.

Abstract: A polymerizable compound represented by general formula (1): wherein Z1 and Z2 each represent a (meth)acryloyloxy group; X1 and X2 each independently represent a single bond, an optionally branched alkylene group having 1 to 8 carbon atoms, an ether linkage, —COO—, —OCO—, —OCOO—, a 6-membered ring optionally having a substituent, or a combination thereof; R1 represents —R?, —OR?, —CO—R?, or —OCO—R?; R? represents a halogen atom, an optionally branched alkyl group having 1 to 8 carbon atoms, or a 6-membered ring optionally having a substituent, L1 and L2 each independently represent a member selected from a single bond, —CH2CH2—, —CH?CH—, —C?C—, —CH2O—, —OCH2—, —COO—, and —OCO—; m represents an integer of 1 to 4; and the R1's may be the same or different.

Abstract: A method for obtaining a star polymer having a controlled ratio of a weight average molecular weight of the star polymer to a number average molecular weight of the star polymer, containing the steps of anionically polymerizing a (meth)acrylic ester having an alicyclic skeleton and a lactone ring in the presence of an anionic polymerization initiator to synthesize an arm polymer, reacting the arm polymer with a polyfunctional coupling agent, and reacting with an anionic polymerizable monomer.

Abstract: The present invention relates to a composition containing at least one lactic acid homopolymer and at least one block copolymer with a polydispersity index ranging from 1.5 to 5 and comprising: at least one block A that is miscible with the homopolymer and formed from monomers containing at least one methacrylate of formula CH2?C(CH3)—COOR1, and at least one block B that is immiscible with the homopolymer and formed from monomers containing at least one alkyl acrylate of formula CH2?CH—COOR2 and/or at least one methacrylate of formula CH2?C(CH3)—COOR3. The invention also relates to the use of this composition for the manufacture of medical articles, textile fibers, thermoformed plates or packaging, in particular films or bottles.

Abstract: The present invention relates to various end use applications prepared from certain block copolymers. The block copolymers include one or more A or A? blocks or B blocks plus one or more terminal M blocks. Each A and A? is a block or segment comprising predominantly a polymerized alkenyl aromatic compound, each B is a block or segment comprising predominantly a polymerized conjugated alkadiene, and each M is a six membered anhydride ring and/or acid group. The anhydride rings are prepared by thermally decomposing adjacent units of (1-methyl-1-alkyl)alkyl acrylic esters such as t-butylmethylacrylate. A wide variety of polymers are disclosed having the stable anhydride rings in the polymer backbone. The invention relates specifically to various end uses prepared from the reaction product of such block copolymers with various reactive resins, reactive monomers and metal derivatives.

Abstract: Disclosed are: a resin composition for pattern formation, which enables the stable formation of a pattern at a level of the wavelength of light; a method for forming a pattern having a sea-island structure using the composition; and a process for producing a light-emitting element that can achieve high luminous efficiency properties.

Abstract: A methacrylic resin composition in which a star block copolymer (B) in the form of particles is dispersed in a matrix (A) composed of a methacrylic resin comprising not less than 50% by mass of a methyl methacrylate unit. The methacrylic resin composition is obtained by bulk-polymerizing or solution-polymerizing 100 parts by mass of a monomer mixture (A?) containing 50 to 100% by mass of methyl methacrylate and 0 to 50% by mass of other vinyl monomer copolymerizable with the methyl methacrylate, in the presence of 1 to 80 parts by mass of the star block copolymer (B) comprising a polymer block (a) composed of a (meth)acrylic acid alkyl ester unit and a polymer block (b) composed of a conjugated diene compound unit, until the polymerization conversion of the monomer reaches 70% by mass or more.

Abstract: A thermoplastic resin composition that includes 100 parts by mass of a first vinyl (co)polymer (I) that is produced by (co)polymerization of at least one monomer component selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds, and other vinyl monomers copolymerizable with these compounds, and 1 to 100 parts by mass of a vinyl copolymer (II) that is produced by copolymerization of a vinyl cyanide compound and another vinyl monomer copolymerizable with the vinyl cyanide compound and in which the content of the vinyl cyanide compound component in an acetone soluble fraction of the copolymer ranges from 0.1% to 15% by mass.

Abstract: [PROBLEMS] To provide a polymer composition that simultaneously has excellent paintability and high oil resistance and is also excellent in thin-wall moldability and flexibility; and a molded article produced by injection-molding of the composition and being suitable for composite-molded grips, automotive interior and exterior trims, and so on.

Abstract: The present invention relates to an acrylic foam composition comprising an acrylic polymer and an acrylic processing aid which exhibits increased flexibility characteristics over other types of foam compositions.

Abstract: A blend polymer composition includes a styrene-based polymer, a non-styrene-based polymer, and a compatibilizer having a block copolymer. The block copolymer includes: a first block including a first monomer unit having an epoxy group, and a second monomer unit selected from an acrylate-based monomer unit, a methacrylate-based monomer unit, and a combination thereof; and a second block including a styrene-based monomer unit. The block copolymer has an epoxy equivalent ranging from 1000 g/eq to 20000 g/eq and a molecular weight distribution index ranging from 1.0 to 2.0.

Abstract: Superabsorbent polymer particles, coated with a block copolymer comprising at least four blocks being at least two hard blocks, one soft block and one hydrophilic block, wherein a the soft block is sandwiched between the hard blocks.

Abstract: The invention relates to methyl methacrylate characterized in that at least one portion of the carbons thereof is biologically sourced and, more specifically, in that it contains between 0.2×10?10 and 1.2×10?10 wt.-% of 14C in relation to total carbon weight according to the ASTM D6866 standard. The preparation method comprises the use of acetone cyanohydrin as a raw material, said acetone cyanohydrin being obtained by condensing cyanohydric acid on acetone, and the methyl methacrylate is prepared using a process involving the addition of methanol. According to the invention, at least one from among the acetone, cyanohydric acid and methanol is obtained by means of a reaction or series of reactions involving the biomass.

Abstract: The disclosure relates to a cross-linking composition in pellet form including at least one polymer matrix, at least one cross-linking agent and at least one hydrogen sulphide inhibiting agent, the hydrogen sulphide inhibiting agent including at least one zinc carboxylate and at least one triazine derivative. It also relates to its preparation method.

Abstract: [Object] Provided are a sheet-like molded article having excellent surface smoothness, moldability, flexibility, and a high transmittance of short-wavelength light, and a thermoplastic polymer composition used to produce the sheet-like molded article.

Abstract: The invention relates to the production and use of block copolymers which are obtained by means of controlled radical polymerization in the presence of nitroxides for the purpose of reinforcing fragile polymer matrices. The invention offers advantages such as (i) simplicity of copolymer synthesis and use and (ii) fine dispersion of the copolymer molecules in the fragile matrix, which ensures both the transparency of the material and high reinforcement against impact. More specifically, the invention relates to the radical synthesis of block copolymers comprising at least three blocks, which include one block having a glass transition temperature of less than 0° C. and a thermoplastic end block having a glass transition temperature of more than 0° C., thereby guaranteeing compatibility with the fragile matrix to be reinforced against impact.

Abstract: The present invention relates to the field of nanostructured acrylic polymer materials having both very good optical properties and good mechanical and surface properties. The invention relates to an acrylic resin composition containing a PMMA matrix (component 1) having a glass transition temperature of greater than 0° C., dispersed in which is an acrylic block copolymer (component 2). Characteristically, the composition of the invention contains from 60 to 80% by weight of said PMMA matrix, and from 20 to 40% by weight of said block copolymer. According to another aspect, the invention relates to a transparent flat article containing the aforementioned acrylic resin composition, haying the following features: a thickness ranging from 300 to 900 microns, preferably from 400 to 700 micrometers; a light transmission at least equal to 91%; a haze of less than or equal to 2%; and no appearance of haze when the temperature rises to 80° C.

Abstract: The invention relates to a block copolymer comprising: at least one soft block A with a Tg of between ?55° C. and 0° C. and preferably between ?40° C. and ?1° C., and at least one block B comprising at least one photoactive monomer bearing a photoisomerizable chromophore. The photoactive monomer has the formula (I): in which: X denotes H or CH3—; G denotes —O—C(?O)—, —C(?O)—O—, a substituted or unsubstituted phenyl group, or —NR—C(?O)—, NR being linked to L and R being H or a C1-C10 alkyl group; L denotes a spacer group; CR denotes a photoisomerizable chromophore. The block copolymer makes it possible to obtain a 3D optical memory. The invention also relates to this 3D optical memory.

Abstract: This invention relates to stabilized polymerizable compositions comprising compounds containing moieties capable of free radical polymerization and organoborane initiators capable of initiating free radical polymerization and adhesives based on such compositions. In another embodiment the invention relates to a method of polymerizing compounds containing moieties capable of free radical polymerization and to methods of bonding substrates (including flexible substrates) using such compositions. The invention also relates to coatings, laminates, and components including these compositions.

Abstract: The present invention provides a novel polymer, and a mixture and a cement admixture thereof. The cement admixture has higher dispersibility compared to the previous ones. The novel polymer of the present invention has a different structure from the conventional copolymers used for cement admixtures, using an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer as the monomer components. The novel polymer of the present invention basically contains a polyalkylene glycol chain and a polymer segment bonded to the chain. Another type of the novel polymer of the present invention contains two polyalkylene glycol chains and a polymer segment connecting the chains. In these polymers, at least one of unsaturated monomers constituting the polymer segment is an unsaturated carboxylic acid monomer or an unsaturated polyalkylene glycol monomer. The cement admixture of the present invention comprises a polymer, made from these monomers, or a mixture thereof.

Abstract: There is disclosed a process for obtaining a water-borne crosslinkable composition comprising a block copolymer comprising at least blocks [A]x[B]y (where x is an integer from 3 to 80 (inc.), where y is an integer ?10 and where y>x) and a polymer P, the block copolymer-polymer having an acid value ?150 mg KOH per g of block copolymer-polymer, where at least block [A] and [B] is obtained by a controlled radical polymerisation of at least one ethylenically unsaturated monomer via a reversible addition-fragmentation chain transfer (RAFT) mechanism in solution in the presence of a control agent and a source of free radicals; and where polymer P is obtained in the presence of blocks [A]x[B]y by an emulsion polymerisation process.

Abstract: The invention relates to acrylic alloy compositions that are transparent and have excellent chemical and impact resistance. The acrylic alloy is especially useful in bio-pharmaceutical and medical applications in which the composition needs a resistance to isopropyl alcohol, lipids and impact. The acrylic alloy containing is a melt blend of a high molecular weight acrylic copolymer, polyvinylidene fluoride, optional impact modifier and other additives.

Abstract: A tri-block copolymer is disclosed for use as an impact modifier in polyamide compounds also containing a compatibilizer, preferably also having reinforcing organoclay exfoliated and dispersed therein. The tri-block copolymer comprises an aromatic monomer, an olefin monomer, and a alkyl (meth)acrylate monomer.

Abstract: A process is provided for making a reactive-block-copolymer chain extender and for using the chain extender to couple polymer chains together for increasing the average molecular weight of the polymer chains. The chain extender can be reacted with polymeric materials that have functional groups and low molecular weight to couple polymer chains together and increase the average molecular weight, thereby increasing intrinsic viscosity and improving properties of the polymeric material. The chain extender is particularly useful for recycling polyethylene terephthalate (PET) and other polymers with functional groups and is also useful as a surface modifier and as a compatibilizer for polymeric materials that do not have reactive functional groups, such as polyethylene, polypropylene and polystyrene.

Abstract: The present invention refers to a climaproof cosmetic complex having a long-time moisture-retaining effect and water resistance. The complex comprises (in % by weight) 0.1-90% of a gelled oil composition consisting of an oil component and a polymer component; 0.1-80% of a topic water-repellent substance; 0.01-20% of a water-absorbing powder having a particle size of 1 to 100 ?m; 0.01-20% of a thickening agent; and 0.1-50% of organic solvents, carrier substances, or mixtures thereof.

Abstract: Disclosed is a new method and compositions from the method consisting of block copolycarbonate/phosphonates that exhibit an excellent combination of flame resistance, hydrolytic stability, high Tg, low melt viscosity, low color and high toughness. Also disclosed are polymer mixtures or blends comprised of these block copolycarbonate/phosphonate compositions and commodity and engineering plastics and articles produced therefrom. Further disclosed are articles of manufacture produced from these materials, such as fibers, films, coated substrates, moldings, foams, adhesives and fiber-reinforced articles, or any combination thereof.

Abstract: Disclosed herein are pigment dispersions and inks formulated using the same; including at least one dispersed pigment, an aqueous carrier; and at least one block copolymer dispersant having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B); at least one block copolymer having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);

Abstract: The present invention relates to the use of poly acrylic and/or methacrylic macroinitiators in the free radical addition reaction of vinyl aromatic monomers to improve the properties of the resulting copolymer and/or composite. More particularly, the present invention relates to the production of poly acrylic and/or poly methacrylic macroinitiators having nitroxyl end groups. Using such macroinitiators in the free radical addition reaction of vinyl aromatics such as polystyrene compatibilizes the acrylic monomer in the vinyl aromatic matrix thereby improving the properties of the resulting polymer.

Abstract: Disclosed is a resin composition having excellent impact resistance and resistance to whitening by impact without deteriorating excellent transparency of a methacrylic resin. Specifically, an impact resistance modifier composed of a multilayered polymer having at least three layers, namely an innermost-layer polymer derived from an alkyl methacrylate, an intermediate-layer polymer derived from an alkyl acrylate and an outer-layer polymer having its Tg within the range of 20 to 80° C., wherein mass average particle diameter of the intermediate-layer polymer is 200 to 300 nm and the mass ratio of each layer is within an appropriate range, is blended with a methacrylic resin.

Abstract: A method for forming self-assembled patterns on a substrate surface is provided. First, a block copolymer layer, which comprises a block copolymer having two or more immiscible polymeric block components, is applied onto a substrate that comprises a substrate surface with a trench therein. The trench specifically includes at least one narrow region flanked by two wide regions, and wherein the trench has a width variation of more than 50%. Annealing is subsequently carried out to effectuate phase separation between the two or more immiscible polymeric block components in the block copolymer layer, thereby forming periodic patterns that are defined by repeating structural units. Specifically, the periodic patterns at the narrow region of the trench are aligned in a predetermined direction and are essentially free of defects. Block copolymer films formed by the above-described method as well as semiconductor structures comprising such block copolymer films are also described.

Abstract: Disclosed herein are inks including an aqueous vehicle; at least one encapsulant-dispersed pigment; and at least one block copolymer binder dispersed throughout the aqueous vehicle and having Structure I and comprising a hydrophobic block (A) and a hydrophilic block (B);

Abstract: The present invention provides an acrylic block copolymer composition improving melt flowability at molding and being excellent in heat resistance in addition to maintain weather resistance, chemical resistance, adhesivity, flexibility and abrasion resistance which are the characteristics of the acrylic block copolymer. It is attained by a thermoplastic elastomer composition comprising an acrylic block copolymer (A) which comprises a methacrylic polymer block (a) and an acrylic polymer block (b), wherein at least one of polymer blocks among the methacrylic polymer block (a) and the acrylic polymer block (b) has a functional group (X), and a compound (B) containing 1.1 or more of functional groups (Y) in one molecule.

Abstract: This invention provides a nanodisk, which can be formed of a wide variety of materials and has a high level of application, and a method for manufacturing the same. The nanodisk comprises fundamental units formed of two-molecule block copolymers arranged in series in a main chain direction, the fundamental units having been aggregated in a plane direction. The nanodisk has a thickness of 1 nm to 100 nm, a diameter of 10 nm to 5 ?m, and an aspect ratio of not less than 1. Since the thickness of the nanodisk is not more than 100 nm, the nanodisk is transparent to light in a visible region. Further, when a metal element is held on the crosslinked structure part, the nanodisk can be utilized as a nanodisk having magnetic properties and electroconductive properties, or a nanodisk having catalytic activity and a high refractive index. Thus, the nanodisk can be applied to a wide variety of fields such as fine particle/powder technology, colloid surface science, electronic materials, and optical materials.

Abstract: The present invention relates generally to sizing compositions for fibers used in composite materials. More specifically, this invention relates to siloxane fiber sizing solutions comprising rubbery-polymers and their use in preparing composite materials. Using the sizings of the present invention not only improves the energy absorption of the composite materials made thereof, but also maintains the interfacial strength of composite materials. Particularly, the rubbery-polymers of the present invention are functionalized with chemical groups that react to the fiber surface and/or to the polymeric resin. In addition, because the rubbery-polymer is incorporated as one block of a block copolymer, it advantageously improves both, the interfacial strength and energy absorption.

Abstract: Adhesive formulations having acrylate monomer or methacrylate monomer, or mixtures thereof, and having a reducing agent and an initiator (e.g., peroxide). The formulations may include a chelating agent solution to improve storage stability and other properties. Further, the mole ratio of the initiator to the reducing agent may be adjusted to control weight loss of the adhesives during cure. Polyvinyl acetate or its derivatives may also be employed in the adhesive formulations to reduce weight loss during cure. Moreover, certain embodiments of the formulations include a toughening-agent copolymer having a glass transition temperature (of at least one domain) that is lower than ?50° C. (?58° F.). These toughening-agent copolymers may be added to the adhesive formulations to improve impact strength and other properties of the cured adhesives at lower temperatures, e.g., ?40° C. (?40° F.), while maintaining performance of the cured adhesives at higher temperatures, e.g., 82° C. (180° F.).

Abstract: The invention relates to a composition that contains, in weight and for a total of 100%: from 10 to 40% of a block copolymer including a central block B with Tg<0° C. and at least two side rigid blocks A and A? with Tg>0° C. that include MAM as a main monomer as well as patterns derived from (meth)acrylic acid and/or anhydrous groups of the formula (I) in which R1 and R2 are H or a methyl radical; from 90 to 60% of at least one PMMA. The invention also relates to the use of such a composition for making a transparent protection part for a projector, and to the projecting device itself.

Abstract: The invention relates to compositions comprising two structured linear copolymers selected from the group consisting of block copolymers and gradient copolymers, these copolymers being prepared by different controlled polymerization techniques and the difference in the polydispersities of these copolymers, ?(Mw/Mn), being ?0.25. The invention further relates to the production of such blends and to their use as wetting agents and dispersants.

Abstract: The present invention provides an acrylic block copolymer composition improving melt flowability at molding and being excellent in heat resistance in addition to keep weather resistance, chemical resistance, adhesion property, flexibility and abrasion resistance which are the characteristics of the acrylic block copolymer. It is attained by a thermoplastic elastomer composition comprising an acrylic block copolymer (A) which comprises a methacrylic polymer block (a) and an acrylic polymer block (b), wherein at least one of polymer blocks among the methacrylic polymer block (a) and the acrylic polymer block (b) has an acid anhydride group and/or a carboxyl group, and an acrylic polymer (B) having 1.1 or more of epoxy groups in one molecule.

Abstract: The present invention relates to the production of amphiphilic copolymer networks, or co-networks, and to methods for preparing amphiphilic co-networks. Furthermore, the present invention relates to products and/or films made from the amphiphilic co-networks produced in accordance with the synthesis methods of the present invention. In one embodiment, the present invention is related to crosslinkable and/or polymerizable compositions that can be utilized to form amphiphilic co-networks, where such compositions are block copolymer compositions that are formed from the combination of at least one hydrophilic segment, at least one hydrophobic segment, and at least one crosslinkable and/or polymerizable segment. In yet another embodiment, the present invention relates to amphiphilic co-networks that are optically clear and highly oxyphilic.

Abstract: Articles and methods for forming articles containing hybrid block copolymers having conjugated diene and/or alkenyl aromatic and at least one block of (1-methyl-1-alkyl)alkyl ester groups and/or anhydride groups which are derived from the ester groups and/or acid groups.

Abstract: The present invention relates to a composition containing modified block copolymer dispersants and dispersible inorganic or organic pigments. The block copolymers are prepared by atom transfer radical polymerisation (ATRP) and modified with a salt forming group. The pigment composition is useful for preparing coating compositions, prints, images, inks or lacquers and other disperse systems.

Abstract: [Problems] To provide a polymer composition that simultaneously has excellent paintability and high oil resistance and is also excellent in thin-wall moldability and flexibility; and a molded article produced by injection-molding of the composition and being suitable for composite-molded grips, automotive interior and exterior trims, and so on.

Abstract: To provide a polyalkylene glycol chain-containing thiol polymer which is excellent in various performances, particularly significantly excellent in cement dispersibility, and useful in various applications such as an admixture for cement; a thiol-modified monomer or a mixture thereof, which can produce such a polymer; production methods of the polymer and the monomer; and a dispersant and an admixture for cement, each including the polymer. The polyalkylene glycol chain-containing thiol polymer of the present invention is a polyalkylene glycol chain-containing thiol polymer, wherein the polymer comprises a polyalkylene glycol chain and a polymer segment bonded to at least one end of the polyalkylene glycol chain with a sulfur atom-containing group therebetween, the polymer segment includes a constitutional unit derived from an unsaturated monomer component, and the unsaturated monomer component includes an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer.

Abstract: The polymerizable compound of the present invention is represented by general formula (1) below and can provide a composition that is polymerizable near ambient temperature and exists in a liquid crystal phase at low temperatures. The composition and a (co)polymer of the polymerizable compound of the present invention are liquid crystal substances useful as optically anisotropic materials. (In the formula, each of rings A1 to A3 represents a benzene ring, cyclohexane ring, etc.; each of X to Z represents a C1-8 alkyl or alkoxy group, C2-6 alkenyl group, halogen atom, cyano group, or CH2?CR3—COO—; each of R1 to R3 represents a hydrogen atom, methyl group, or halogen atom; each of L1 to L3 represents —CH2CH2COO—, —COO—, —OCO—, —CH2CH2—, —O(CH2)f— (herein, f=1-8), etc.; n represents 0 or 1; and a to c represent such numbers that the polymerizable compound has at least one or more of any of X, Y, and Z).

Abstract: Disclosed are ionomer compositions neutralized by a combination of cesium and potassium that have antistatic properties. Also disclosed are articles, including laminates and monolayer or multilayer structures comprising such compositions to which neither powders nor dusts easily adhere electrostatically.

Abstract: A methacrylic resin composition in which a star block copolymer (B) in the form of particles is dispersed in a matrix (A) composed of a methacrylic resin comprising not less than 50% by mass of a methyl methacrylate unit. The methacrylic resin composition is obtained by bulk-polymerizing or solution-polymerizing 100 parts by mass of a monomer mixture (A?) containing 50 to 100% by mass of methyl methacrylate and 0 to 50% by mass of other vinyl monomer copolymerizable with the methyl methacrylate, in the presence of 1 to 80 parts by mass of the star block copolymer (B) comprising a polymer block (a) composed of a (meth)acrylic acid alkyl ester unit and a polymer block (b) composed of a conjugated diene compound unit, until the polymerization conversion of the monomer reaches 70% by mass or more.

Abstract: The invention relates to a graft copolymer composed of a block copolymer of general formula B-(A)n in which A is a rigid block polymer with a glass transition temperature of more than 0° C., B is a flexible block polymer with a glass transition temperature of less than 0° C.; and n is 1 or is a natural integer greater than 1, it being possible for the blocks A, when n is 2 or more, to be identical or different; and of polyamide (PA) grafts which are carried by the rigid polymer block or blocks, the resulting graft copolymer being represented by the formula (Ag)m-B-(A)p in which A and B are as defined above, Ag is the block A carrying at least one graft (PA) and m and p are natural integers whose sum is equal to n, but p being able to be equal to 0.

Abstract: The present invention provides a graft or a block polymer in which a fluorine rubber and a silicone rubber are chemically bonded. The present invention is a graft or a block polymer comprising at least one kind of a silicone rubber segment and at least one kind of a fluorine elastomer segment. Furthermore, it is preferable that a fluorine containing elastomer segment is an elastomer segment comprising vinylidene fluoride or an elastomer segment comprising tetrafluoroethylene and that a silicone rubber segment has a unit of dimethylsiloxane and/or methyl-3,3,3-trifluoropropylsiloxane.

Abstract: Improved methods for preparing sulfonated block polymers with acyl sulfates in non-halogenated aliphatic solvents are provided. The methods include the sulfonation of a precursor block polymer with an acyl sulfate in a reaction mixture further comprising at least one non-halogenated aliphatic solvent to form a sulfonated block polymer, wherein the initial concentration of the precursor block polymer is in the range of from about 0.1 wt % to a concentration that is below the limiting concentration of the precursor block polymer based on the total weight of the reaction mixture. A sulfonation degree of greater than about 1.0 milliequivalent sulfonic acid per gram sulfonated block polymer can be achieved substantially free of polymer precipitation and free of disabling gelation.

Abstract: Polymer string mainly but not exclusively consisting of one or several plastics, characterised in that at least one plastic consists of a thermoplastic material in which at least one alkylbenzyl ester of a 1,2 dicarboxylic acid or one of its derivates is distributed homogeneously, that the alkyl chain of the alkyl-benzyl ester or one of its derivates consists of at least five carbon atoms, and that it is used in a concentration between 0.1 to 5 percent by weight, better between 0.3 to 4 percent by weight, and even better between 0.3 to 1.2 percent by weight.