摘要:
The present invention provides a resin composition that simultaneously (1) supports high productivities, (2) is resistant to bleed out by the flame retardant present in the composition, (3) is resistant to migration of its components to another resin, (4) exhibits a high flame retardancy, and (5) exhibits high flexibility. The resin composition includes components (A) a polyphenylene ether, (B) a hydrogenated copolymer, (C) a styrene resin and/or olefin resin, and (D) a metal phosphinate, wherein the component (B) includes (B1) a polymer block principally comprising an aromatic vinyl monomer unit, and (B2) a hydrogenated copolymer block principally comprising an aromatic vinyl monomer unit and a conjugated diene monomer unit, and a content of the aromatic vinyl monomer unit in the (B2) is 20 to 95% by weight, and a content of the aromatic vinyl monomer unit in the (B) is 35 to 80% by weight.
摘要:
The present invention relates to a method for producing a hydrogenated conjugated diene copolymer including a polymerization step and a hydrogenation step, wherein in the polymerization step, a conjugated diene copolymer having a high vinyl bond amount of a conjugated diene block moiety and a narrow molecular weight distribution can be produced, and in the hydrogenation step, the rate of hydrogenation is high and productivity is excellent.
摘要:
The present invention provides a resin composition that simultaneously (1) supports high productivities, (2) is resistant to bleed out by the flame retardant present in the composition, (3) is resistant to migration of its components to another resin, (4) exhibits a high flame retardancy, and (5) exhibits high flexibility. The resin composition includes components (A) a polyphenylene ether, (B) a hydrogenated copolymer, (C) a styrene resin and/or olefin resin, and (D) a metal phosphinate, wherein the component (B) includes (B1) a polymer block principally comprising an aromatic vinyl monomer unit, and (B2) a hydrogenated copolymer block principally comprising an aromatic vinyl monomer unit and a conjugated diene monomer unit, and a content of the aromatic vinyl monomer unit in the (B2) is 20 to 95% by weight, and a content of the aromatic vinyl monomer unit in the (B) is 35 to 80% by weight.
摘要:
Provided is a hydrogenated block copolymer for preparing a foam excellent in tear strength, compression set resistance, low impact resilience, and abrasion resistance.More specifically, provided is a hydrogenated block copolymer comprising a vinyl aromatic compound and a conjugated diene, wherein: (a) the vinyl aromatic unit content is greater than 35 wt. % and not greater than 90 wt. %, (b) the vinyl aromatic polymer block content is not greater than 40 wt. %, (c) the weight average molecular weight is from 5×104 to 100×104, and (d) the hydrogenation ratio of double bonds derived from the conjugated diene is less than 70%.
摘要:
According to the present invention, a flexographic printing plate and a photosensitive resin composition used therein are provided. The flexographic printing plate comprises a photocured product which is obtained by photocuring a photosensitive resin composition comprising a thermoplastic elastomer (a), a photopolymerizable unsaturated monomer (b) and a photopolymerization initiator (c) and has a loss tangent (tan δ) of 0.3 or more at 500 Hz in dynamic viscoelastometry using a nonresonance forced vibration apparatus.
摘要:
An object of the present invention is to provide a photosensitive resin composition which is excellent in the compatibility (dispersibility) of photosensitive resin composition components, developability with aqueous developer solution, water resistance, image reproducibility, print wear characteristics in printing with a water base ink and plate wiping-off resistance in removal of ink adhered to any printing plate. The present invention relates to a photosensitive resin composition comprising a hydrophilic copolymer (A) obtained by copolymerizing at least (1) 2 to 15 parts by mass of an unsaturated monomer having a carboxyl group, (2) 50 to 80 parts by mass of a conjugated diene-type monomer, (3) 3 to 20 parts by mass of an aromatic vinyl compound, and (4) 3 to 30 parts by mass of an alkyl (meth)acrylate.
摘要:
The present invention provides a photosensitive resin composition containing bis(3,5-di-t-butyl-4-hydroxy-benzyl) sulfide. The photosensitive resin composition of this invention, as it contains a specific stabilizer, is resistant against tinting and gelation by heat, excellent in storage stability, not inhibitory to photopolymerization reactions, and thermally stable.
摘要:
The present invention relates to a method for producing a hydrogenated conjugated diene copolymer including a polymerization step and a hydrogenation step, wherein in the polymerization step, a conjugated diene copolymer having a high vinyl bond amount of a conjugated diene block moiety and a narrow molecular weight distribution can be produced, and in the hydrogenation step, the rate of hydrogenation is high and productivity is excellent.
摘要:
There is provided a thermoplastic elastomer composition having excellent flexibility, mechanical properties, scratch resistance, abrasion resistance, and low-temperature characteristics. A crosslinked thermoplastic elastomer composition comprising 5 to 70 parts by mass of (C) a hydrogenated product of a block copolymer having at least one conjugated diene monomer unit block and at least one vinyl aromatic monomer unit block, and 20 to 150 parts by mass of (D) an olefin-based resin, based on 100 parts by mass of the total of (A) an ethylene-α-olefin copolymer comprising an ethylene unit and an α-olefin unit having 3 to 20 carbon atoms, and (B) a copolymer having at least one hydrogenated copolymer block mainly composed of a conjugated diene monomer unit and a vinyl aromatic monomer unit, wherein a mass ratio ((A)/(B)) of the (A) component and the (B) component is from 20/80 to 75/25.
摘要:
There is provided a thermoplastic elastomer composition having excellent flexibility, mechanical properties, scratch resistance, abrasion resistance, and low-temperature characteristics. A crosslinked thermoplastic elastomer composition comprising 5 to 70 parts by mass of (C) a hydrogenated product of a block copolymer having at least one conjugated diene monomer unit block and at least one vinyl aromatic monomer unit block, and 20 to 150 parts by mass of (D) an olefin-based resin, based on 100 parts by mass of the total of (A) an ethylene-α-olefin copolymer comprising an ethylene unit and an α-olefin unit having 3 to 20 carbon atoms, and (B) a copolymer having at least one hydrogenated copolymer block mainly composed of a conjugated diene monomer unit and a vinyl aromatic monomer unit, wherein a mass ratio ((A)/(B)) of the (A) component and the (B) component is from 20/80 to 75/25.