摘要:
The present invention provides a thermoplastic elastomer composition obtained by dynamically crosslinking, under a melting condition, 100 parts by mass of a block copolymer (I), 1 to 1,000 parts by mass of a polar resin (II), 1 to 500 parts by mass of a modified polymer (III), and 0.01 to 50 parts by mass of a crosslinking agent (IV), wherein the block copolymer (I) comprises at least one polymer block (A) comprising as a main component an alkylene unit, and/or at least one copolymer block (B) comprising as main components an alkylene unit (b-1) and a vinyl aromatic monomer unit (b-2), and comprises at least one unsaturated block (C) comprising as a main component a conjugated diene monomer unit having 5 or more carbon atoms at an end.
摘要:
The present invention provides a thermoplastic elastomer composition obtained by dynamically crosslinking, under a melting condition, 100 parts by mass of a block copolymer (I), 1 to 1,000 parts by mass of a polar resin (II), 1 to 500 parts by mass of a modified polymer (III), and 0.01 to 50 parts by mass of a crosslinking agent (IV), wherein the block copolymer (I) comprises at least one polymer block (A) comprising as a main component an alkylene unit, and/or at least one copolymer block (B) comprising as main components an alkylene unit (b-1) and a vinyl aromatic monomer unit (b-2), and comprises at least one unsaturated block (C) comprising as a main component a conjugated diene monomer unit having 5 or more carbon atoms at an end.
摘要:
The present invention provides a crosslinked foam having an excellent balance of various physical properties in terms of lightness, flexibility, permanent compression set, tear strength, impact resilience, and molding stability; a shoe midsole; and a crosslinkable and foamable composition that provides the crosslinked foam and shoe midsole. A crosslinkable and foamable composition comprising (A) an ethylene-based copolymer; (B) a copolymer comprising a vinyl aromatic monomer unit and an unsaturated bond-containing a conjugated diene monomer unit; (C) an organic peroxide; and (D) a foaming agent; a mass ratio of the component (A) to the component (B), (A/B), being from 97/3 to 50/50; and the component (B) comprising 5 mass % or more and 80 mass % or less of the vinyl aromatic monomer unit, and 5 mass % or more and 55 mass % or less of the conjugated diene monomer unit.
摘要:
The present invention provides a crosslinked foam having an excellent balance of various physical properties in terms of lightness, flexibility, permanent compression set, tear strength, impact resilience, and molding stability; a shoe midsole; and a crosslinkable and foamable composition that provides the crosslinked foam and shoe midsole. A crosslinkable and foamable composition comprising (A) an ethylene-based copolymer; (B) a copolymer comprising a vinyl aromatic monomer unit and an unsaturated bond-containing a conjugated diene monomer unit; (C) an organic peroxide; and (D) a foaming agent; a mass ratio of the component (A) to the component (B), (NB), being from 97/3 to 50/50; and the component (B) comprising 5 mass % or more and 80 mass % or less of the vinyl aromatic monomer unit, and 5 mass % or more and 55 mass % or less of the conjugated diene monomer unit.
摘要:
A hydrogenated block copolymer obtained by selective hydrogenation of a block copolymer comprising at least two polymer blocks (A) which each comprise vinyl aromatic monomer units as the main component and may be the same or different from each other, at least two polymer blocks (B) which each comprise monomer units derived from a conjugated diene of 5 or more carbon atoms as the main component and may be the same or different from each other, and one or more polymer blocks (C) which each comprise monomer units derived from a conjugated diene of 4 or more carbon atoms as the main component and may be the same or different from each other and/or one or more random copolymer blocks (D) which each comprise monomer units (d-1) derived from a conjugated diene of 4 or more carbon atoms and vinyl aromatic monomer units (d-2) as the main components, wherein the degree of hydrogenation of olefinically unsaturated double bonds of the blocks (B) is 50% or below; the degrees of hydrogenation of olefinically unsaturated double bonds of the blocks (C) and (D) are 80% or above; the content of vinyl aromatic monomer units in the block copolymer is 10 to 85% by weight; the contents of A, B, C and D in the block copolymer are 10 to 70% by weight, 1 to 15% by weight, 0 to 85% by weight and 0 to 85% by weight respectively with the proviso that the sum of C and D is 25 to 85% by weight and the sum total of A, B, C and D is 100% by weight; and the weight-average molecular weight (M) of A satisfies the relationship: M≧20000/[l+{content (%) of (d-2)}/20].
摘要:
A crosslinked composition is obtained by crosslinking a composition, containing: 1 to 99 parts by mass of a vinyl aromatic copolymer rubber (I) comprising 5 to 70% by mass of a vinyl aromatic monomer unit and 0.1 to 30% by mass of a conjugated diene monomer unit and having one or more tan δ peak temperatures between 75° C. and 125° C.; 99 to 1 parts by mass of an ethylenic copolymer rubber (II); 10 to 100 parts by mass of an olefinic resin (III) based on 100 parts by mass of a total amount of the vinyl aromatic copolymer rubber (I) and the ethylenic copolymer rubber (II); and 0.01 to 50 parts by mass of a crosslinking agent (IV) based on 100 parts by mass of the total amount of the vinyl aromatic copolymer rubber (I) and the ethylenic copolymer rubber (II).
摘要:
A crosslinked composition is obtained by crosslinking a composition, containing: 1 to 99 parts by mass of a vinyl aromatic copolymer rubber (I) comprising 5 to 70% by mass of a vinyl aromatic monomer unit and 0.1 to 30% by mass of a conjugated diene monomer unit and having one or more tan δ peak temperatures between 75° C. and 125° C.; 99 to 1 parts by mass of an ethylenic copolymer rubber (II); 10 to 100 parts by mass of an olefinic resin (III) based on 100 parts by mass of a total amount of the vinyl aromatic copolymer rubber (I) and the ethylenic copolymer rubber (II); and 0.01 to 50 parts by mass of a crosslinking agent (IV) based on 100 parts by mass of the total amount of the vinyl aromatic copolymer rubber (I) and the ethylenic copolymer rubber (II).
摘要:
Methods of polymer deposition for forming reduced critical dimensions are described. In one embodiment, a substrate is provided into a chamber, the substrate having a patterned layer disposed on an underlying layer formed thereon. The patterned layer includes a plurality of openings, each opening having a sidewall, a bottom, and a critical dimension. A gas mixture is provided into the chamber, the gas mixture having an etching gas and a polymer control gas. The polymer control gas includes a polymerizing fluorocarbon CxFy gas and a C—H bond containing gas. A plasma is formed with the gas mixture and a conformal polymer layer is deposited in the presence of the plasma on the patterned layer to form a reduced critical dimension in each opening. The reduced critical dimension is smaller than the corresponding critical dimension of the opening.
摘要:
This display screen turning apparatus includes a first support member of metal supporting a display screen portion and a second support member of metal supporting the first support member to be anteroposteriorly rotatable by a prescribed angle with respect to a vertical plane, and either the first support member or the second support member has a receiving hole, while either the second support member or the first support member integrally has a platelike support shaft of metal inserted into the receiving hole.