摘要:
Provided is a rubber composition for tires that can achieve both tire gripping performance and production operability at a high level. A rubber composition for tires comprises: a rubber component; and a softener, wherein the rubber component contains at least one selected from styrene-butadiene rubber and butadiene rubber, the softener contains a hydrogenated resin having a softening point of more than 110°C and a polystyrene-equivalent weight-average molecular weight of 200 g/mol to 1600 g/mol, and a terpene-based resin, and the hydrogenated resin and the terpene-based resin satisfy the formula: a mass ratio of the hydrogenated resin/the terpene-based resin ≥ 1.4/1.
摘要:
[Problem] An object of the present invention is to provide a film for forming which exhibits both excellent dimensional stability in processing and excellent formability as well as excellent appearance of surfaces and can thus be suitably applied to a variety of forming members through forming and used in forming decoration applications. [Means for Solution] Provided is a film for forming comprising a cyclic olefin-based resin as a main component, wherein the storage modulus at 120°C is 101 MPa to 3,000 MPa and the storage modulus at 170°C is 100 MPa or less.
摘要:
The resin composition of the present invention comprises a prepolymer (P) and a thermosetting component, the prepolymer (P) being obtained by polymerizing an alkenyl-substituted nadimide (A), a maleimide compound (B), and an amino-modified silicone (C).
摘要:
The present invention relates to a hydrogenated petroleum resin, and to a manufacturing method and use thereof. More specifically, it relates to a hydrogenated petroleum resin manufactured by subjecting dicyclopentadiene and an olefinic monomer to thermal polymerization and then carrying out a hydrogenation reaction, and to a manufacturing method and use therefor. The hydrogenated petroleum resin has the advantage of being useful in practical applications, since the petroleum resin is manufactured via thermal polymerization using inexpensive raw materials and on the contrary to conventional catalytic polymerization, a catalyst elimination process can be excluded. The hydrogenated petroleum resin produced in this way can be applied to, for example, an adhesive agent used in environmentally friendly sanitary goods, because the petroleum resin has excellent compatibility, adhesiveness and heat resistance, and has no bad odor.
摘要:
An elastomeric composition comprising (i) at least one elastomer; (ii) at least one filler comprising silica; (iii) and at least one silane-functionalized hydrocarbon polymer modifier (Si-HPM); wherein the Si-HPM comprises an interpolymer comprising at least one monomer chosen from piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, and amylenes, and further comprises at least one functional group comprising a silane structure wherein the interpolymer, prior to functionalization, has a weight average molecular weight of 2500 to 25,000 g/mole and a number average molecular weight of 900 to 3,000 g/mole.
摘要:
A cyclopentene ring-opening polymer having, at a polymer chain end, a structure where a polymer chain and a group containing an alkoxysilyl group are bonded through -NH- and having a weight average molecular weight of 100,000 to 1,000,000, wherein the structure is a structure represented by the following general formula (1): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒpCP-Y 1 -NH-Y 2 -Si(OR 1 ) a (R 2 ) 3-a €ƒ€ƒ€ƒ€ƒ€ƒ(1) where, in the general formula (1), pCP represents a cyclopentene ring-opening polymer chain, Y 1 represents a bivalent hydrocarbon group having 1 to 20 carbon atoms, each of R 1 and R 2 represents a hydrocarbon group having 1 to 20 carbon atoms, Y 2 represents a bivalent hydrocarbon group having 1 to 20 carbon atoms in which -NH- may be interposed, and "a" is an integer of 1 to 3.
摘要:
An elastomeric composition comprising (i) at least one elastomer; (ii) at least one filler comprising silica; (iii) and at least one silane-functionalized hydrocarbon polymer modifier (Si-HPM); wherein the Si-HPM comprises an interpolymer comprising at least one monomer chosen from piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, and amylenes, and further comprises at least one functional group comprising a silane structure wherein the interpolymer, prior to functionalization, has a weight average molecular weight of 2500 to 25,000 g/mole and a number average molecular weight of 900 to 3,000 g/mole.
摘要:
There is provided a polymerizable composition that is suitable to produce a molded product that can suppress cracking and dimensional change caused by a high-temperature heat history with a high refractive index of a cured product maintained. A polymerizable composition comprising (a) 100 parts by mass of the specific reactive silsesquioxane compound, (b) 10 to 500 parts by mass of the specific fluorene compound, a cured product obtained by the polymerizable composition and a material for a high-refractive index resin lens comprising the polymerizable composition.