End-group-functionalized oligomers with controlled degrees of functionality based on styrene are produced by reacting the monomer with a regulator by means of free-radical polymerization. At least some of the quantity of regulator is added according to a prescribed program so that at every juncture t the value of the quantitative fraction added up to said juncture does not fall short of the value of the respective conversion U(t) in the polymerization reaction at said juncture t by more than 5 percentage points and does not exceed said value U(t) by more than 5 percentage points.

The invention relates a polyacrylate-polysilane block copolymer of general structure (I): wherein m and n independent of one another, are integers ranging from 2 to 4000; p is an integer ranging from 0 to 5; q is an integer ranging from 1 to 5; R.sup.1 represents hydrogen, straight-chain or branched alkyl group having 1 to 4 carbon atoms; R.sup.2 represents hydrogen, straight-chain or branched alkyl group having 1 to 18 carbon atoms; R3 represents hydrogen, hydroxyl group, straight-chain or branched alkyl group having 1 to 4 carbon atoms, or an C.sub.6-C.sub.14 aryl group; L is a linking moiety representing amine (NH) group, amide (C(O)NH) group, urea (NHC(O)NH) group, urethane (OC(O)NH) group or methylene (CH.sub.2) group; R.sup.4, R.sup.5 and R.sup.6 independent of one another, represents hydrogen, straight-chain or branched, alkyl group having 1 to 8 carbon atoms or polydimethylsiloxane group; and R.sup.7 represents hydrogen or methyl group.

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Provided is a masking tape to be used at the time of formation of an electromagnetic wave shield, which is excellent in followability to irregularities, and which is capable of being peeled off from an irregular surface without any adhesive residue. The masking tape for forming an electromagnetic wave shield includes a pressure-sensitive adhesive layer that is increased in modulus of elasticity through active energy ray irradiation to 20 times or more as high as that before the active energy ray irradiation, wherein the pressure-sensitive adhesive layer has a modulus of elasticity after the active energy ray irradiation of 500 MPa or less.

Provided is an acrylic urethane composite resin particles comprising an acrylic urethane graft resin (I) and a graft acrylic resin (II), the acrylic urethane graft resin (I) being synthesized in the presence of the graft acrylic resin (II), the graft acrylic resin (II) being a hydrophobic-chain- and hydrophilic-chain-containing resin having a weight average molecular weight of 5000 or more, the acrylic urethane graft resin (I) comprising an acrylic resin component and a urethane resin component, the acrylic resin portion of the acrylic urethane graft resin (I) being synthesized using, as constituent monomer components, 0.1 to 30 mass % of a polymerizable unsaturated monomer (1) containing a group having active hydrogen atom(s) reactive with an isocyanate group and 70 to 99.9 mass % of other polymerizable unsaturated monomer(s) (2).

A fluorine-free composition includes one or more compounds derived from a reaction mixture that includes: (i) at least one isocyanate-reactive (i.e., functionalized) oligomer comprising 2 to 20 repeating units; (ii) at least one polyisocyanate; (iii) optionally at least one additional isocyanate-reactive compound; and (iv) optionally at least one isocyanate blocking agent; wherein the isocyanate-reactive oligomer is made by the radical-initiated reaction of a reaction mixture comprising at least one mercaptan and Sat least one (meth)acrylate monomer, wherein the at least one (meth)acrylate monomer comprises at least one isocyanate-derived group (e.g., a urethane group or a urea group) and at least one hydrocarbon group having at least 16 carbon atoms (and in some embodiments, up to 60 carbon atoms). Such compositions are useful for treating fibrous substrates to enhance their water-repellency.

Articles and devices comprising fluorinated polymers, as well as methods of preparing fluorinated polymers, are generally described. In some cases, such fluorinated elastomers can be used for sensing neural activity, e.g., by encapsulating electronic circuits, or other applications. Furthermore, according to certain embodiments, polymers can, surprisingly, be directly deposited onto layers comprising low molecular weight fluorinated polymers, e.g., without swelling in the presence of certain solvents. Some embodiments are generally directed to devices and methods for treating fluorinated polymers and subsequently depositing material onto the treated fluorinated polymers. This may allow the fabrication and patterning of multilayered articles comprising fluorinated elastomers.

Articles and devices comprising fluorinated polymers, as well as methods of preparing fluorinated polymers, are generally described. In some cases, such fluorinated elastomers can be used for sensing neural activity, e.g., by encapsulating electronic circuits, or other applications. Furthermore, according to certain embodiments, polymers can, surprisingly, be directly deposited onto layers comprising low molecular weight fluorinated polymers, e.g., without swelling in the presence of certain solvents. Some embodiments are generally directed to devices and methods for treating fluorinated polymers and subsequently depositing material onto the treated fluorinated polymers. This may allow the fabrication and patterning of multilayered articles comprising fluorinated elastomers.

The present invention relates to a surface-modifying layer including a polymeric component having a hydroxyl group and an unsaturated hydrocarbon group, in which a molar ratio of the unsaturated hydrocarbon group to the hydroxyl group is 0.01 or more and less than 1, a surface-modifying sheet including the surface-modifying layer and a release sheet, a laminate, a surface-modified member and a coated article, in which the surface-modifying sheet is used, a method for producing a surface-modified member, and a method for producing a coated article.

A suitable combination of a composition for formation of a resin mold with a pattern and a composition for formation of resin to which the pattern is transferred from the resin mold is found.

Provided is a rubber composition containing from 1 to 50 parts by mass of an organic microparticle having an average particle size of 0.001 to 100 m and having a crosslinked structure per 100 parts by mass of a diene rubber, the organic microparticle being a crosslinked microparticle of a copolymer formed from at least two types of segments having repeating units that are different each other, the at least two types of segments being formed from an oligomer or prepolymer having a functional group and having a molecular weight of 500 to 20000, and the functional group forming a crosslinked structure between the at least two types of segments.