Abstract: A polymer composition, in which a differential distribution value in a differential molecular weight distribution curve of the polymer composition, as measured by gel permeation chromatography, satisfies Equation 1 and a maximum value of a normalized back-scattering intensity of a 35 wt % base oil solution of the polymer composition, where a size q of a scattering vector of small-angle X-ray scattering at 25° C. is in a range of 0.07 nm?1 or more and 2 nm?1 or less, is 40 cm?1 or more.

Abstract: Provided are an adhesive resin composition capable of forming an adhesive layer excellent in holding force, wet heat clouding resistance, and low corrosiveness; and an adhesive sheet. The adhesive resin composition includes a (meth)acrylic copolymer (A) having a constituent unit derived from a macromonomer (a) and a constituent unit derived from a vinyl monomer (b), in which the (meth)acrylic copolymer (A) has at least one of an amide bond and a radical polymerizable group.

Abstract: A (meth)acrylic copolymer (A) having a mass average molecular weight of 50,000 to 1,000,000, in which the (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture including a macromonomer (a) that has a number average molecular weight of 500 or more and less than 6000 and a vinyl monomer (b), and preferably includes 7 to 40% by mass of a repeat unit derived from the macromonomer (a), has sufficient coating workability, adhesive holding power and adhesive property as an adhesive composition.

Abstract: There is provided a (meth)acrylic copolymer with which a pressure-sensitive adhesive layer exhibiting excellent low temperature coatability and exhibiting holding power and excellent base material contamination resistance even in a case of being irradiated with a low dose of UV irradiation can be formed. The (meth)acrylic copolymer of the present invention comprises a constituent unit a derived from a macromonomer and a constituent unit b derived from a monomer represented by Formula (b), where a content of the constituent unit b is 0.01% to 25% by mass with respect to a total mass of the (meth)acrylic copolymer. In Formula (b), RA and RB each independently represent an alkyl group, a carboxy group, or a halogen atom, n represents an integer of 0 to 5, m represents an integer of 0 to 4, and X represents a (meth)acryloyloxy group or a (meth)acryloyloxyalkyleneoxy group.

Abstract: A (meth)acrylic copolymer (A) having a mass average molecular weight of 50,000 to 1,000,000, in which the (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture including a macromonomer (a) that has a number average molecular weight of 500 or more and less than 6000 and a vinyl monomer (b), and preferably includes 7 to 40% by mass of a repeat unit derived from the macromonomer (a), has sufficient coating workability, adhesive holding power and adhesive property as an adhesive composition.

Abstract: A (meth)acrylic copolymer (A) having a mass average molecular weight of 50,000 to 1,000,000, in which the (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture including a macromonomer (a) that has a number average molecular weight of 500 or more and less than 6000 and a vinyl monomer (b), and preferably includes 7 to 40% by mass of a repeat unit derived from the macromonomer (a), has sufficient coating workability, adhesive holding power and adhesive property as an adhesive composition.

Abstract: A (meth)acrylic acid copolymer (A) having a weight average molecular weight of 1000 to 1,000,000, and in which when the half-width of the primary scatter peak when measured by small angle X-ray scattering is defined as X, 0.12<X, is used as an adhesive. The (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture containing a macromonomer (a) having a number average molecular weight of 500-100,000, and a vinyl monomer (b). The adhesive has sufficient holding force and adhesive force, and the occurrence of adhesive deposit can be prevented when peeled off.

Abstract: Provided are an adhesive resin composition capable of forming an adhesive layer excellent in holding force, wet heat clouding resistance, and low corrosiveness; and an adhesive sheet. The adhesive resin composition includes a (meth)acrylic copolymer (A) having a constituent unit derived from a macromonomer (a) and a constituent unit derived from a vinyl monomer (b), in which the (meth)acrylic copolymer (A) has at least one of an amide bond and a radical polymerizable group.

Abstract: A (meth)acrylic acid copolymer (A) having a weight average molecular weight of 1000 to 1,000,000, and in which when the half-width of the primary scatter peak when measured by small angle X-ray scattering is defined as X, 0.12<X, is used as an adhesive. The (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture containing a macromonomer (a) having a number average molecular weight of 500-100,000, and a vinyl monomer (b). The adhesive has sufficient holding force and adhesive force, and the occurrence of adhesive deposit can be prevented when peeled off.

Abstract: A (meth)acrylic copolymer (A) having a mass average molecular weight of 50,000 to 1,000,000, in which the (meth)acrylic copolymer (A) is obtained by polymerizing a monomer mixture including a macromonomer (a) that has a number average molecular weight of 500 or more and less than 6000 and a vinyl monomer (b), and preferably includes 7 to 40% by mass of a repeat unit derived from the macromonomer (a), has sufficient coating workability, adhesive holding power and adhesive property as an adhesive composition.

Abstract: The purpose of the present invention is to offer an electronic musical instrument which can synthesize the sound of brass instruments with fidelity and furthermore in real time. In order to achieve the above purpose, the musical sound synthesis algorithm is to utilize the tonguing information as well as the embouchure information in addition to the sound generation information, the frequency information, and the sound volume information, which have been used as the playing informations in conventional electronic musical instruments. Furthermore, by tabulating the functional relations between the above-mentioned playing informations and corresponding output waveforms, and storing them in memories, necessary waveforms for sounding the musical instrument can be obtained by only referring to those tables, thereby the speed-up, that is, the realization by hardware, can be realized and thus the sound of brass instruments can be synthesized with fidelity and in real time.