The present invention provides an asphalt composition obtained by blending an asphalt and an addition polymerization-type polymer, the addition polymerization-type polymer having a hydroxyl value of 10 mgKOH/g or more and 60 mgKOH/g or less and having a weight average molecular weight (M.sub.w) of 2,500 or more and 70,000 or less.

The present invention pertains to: a fluororesin that includes a residue unit represented by formula (1), and a terminal group represented by formula (2); and a fluororesin that includes a residue unit represented by formula (1) and has a transmittance of 50% or more measured at an optical path length of 10 mm and a wavelength of 275 nm when dissolved in perfluorohexane to produce a 10 wt % perfluorohexane solution.

##STR00001##

In formula (1): Rf.sub.1, Rf.sub.2, Rf.sub.3, and Rf.sub.4 each independently represent one selected from the group consisting of fluorine atoms, C1-7 linear perfluoroalkyl groups, C3-7 branched perfluoroalkyl groups, or C3-7 cyclic perfluoroalkyl groups; the perfluoroalkyl groups may have an etheric oxygen atom; Rf.sub.1, Rf.sub.2, Rf.sub.3, and Rf.sub.4 may bond to each other to form a ring having 4 to 8 carbon atoms; and the ring may include an etheric oxygen atom.

##STR00002##

In formula (2), i is an integer of 3-20. The present invention provides: a fluororesin that includes an oxolane ring, has suppressed yellowing after heating and melting, and especially has reduced discoloration, even in molding of thick products; and a method for producing said fluororesin.

The present invention provides a method for manufacturing an optical resin composition that is less colored and that has a sufficiently low water absorbability. The optical resin composition manufacturing method according to the present invention includes performing a heat treatment of a fluorine-containing polymer under an atmosphere having a water vapor concentration of 100 volppm or less, the fluorine-containing polymer being obtained by polymerization of a monomer group including a fluorine-containing compound having a carbon-carbon double bond using an organic peroxide. In the optical resin composition manufacturing method, for example, the heat treatment causes thermal decomposition of a terminal group of the fluorine-containing polymer and volatilization of a low-molecular compound generated by the thermal decomposition.

Disclosed are curable adhesive compositions comprising hydroxyl functional polymers and silane functionalized resins. Such adhesive compositions are capable of providing unexpected properties for various uses and end products. The adhesive may be used for woodworking, automotive, textile, appliances, electronics, bookbinding, and packaging. Suitable substrates can be metal, polymer film, plastics, wood, glass, ceramic, paper, and concrete.

A dual-cure method for forming a solid polymeric structure is provided. An end-capped, imide-terminated prepolymer is combined with at least one photopolymerisable olefinic monomer, at least one photoinitiator, and a diamine, to form a curable resin composition, which, in a first step, is irradiated under conditions effective to polymerize the at least one olefinic monomer, thus forming a scaffold composed of the prepolymer and the polyolefin with the diamine trapped therein. The irradiated composition is then thermally treated at a temperature effective to cause a transimidization reaction to occur between the prepolymer and the diamine, thereby releasing the end caps of the prepolymer and providing the solid polymeric structure. A curable resin composition comprising an end-capped, imide-terminated prepolymer, at least one photopolymerisable olefinic monomer, at least one photoinitiator, and a diamine, is also provided, as are related methods of use.

Disclosed are a rubber composition for tire tread and a tire manufactured using the same, in which the rubber composition for tire tread comprises a raw material rubber, which comprises a first solution-polymerized styrene-butadiene rubber with a low glass transition temperature (Tg) and a second solution-polymerized styrene-butadiene rubber with a high glass transition temperature (Tg), a reinforcing filler, a silane coupling agent, a functionalized liquid polymer, and a first resin with a high glass transition temperature and a second resin with a low glass transition temperature. The rubber composition for tire tread maximizes the dispersion of silica and the interaction with rubber, and thus, the rubber composition is excellent in all of the properties with respect to wear resistance, low fuel economy, and braking performance.

A porous membrane includes a triblock copolymer of the formula ABC. B is a hydrogenated vinyl aromatic block present in a range from 30 to 90 weight percent, based on the total weight of the copolymer and has a T.sub.g of ≥110° C. C is a rubbery block present in a range from 10 to 70 weight percent, based on the total weight of the copolymer and has a T.sub.g≤25° C. A is substantially incompatible with both the B and C blocks and is derived from ring-opening polymerization. B+C is present in a range from 70 to 95 weight percent, based on the total weight of the copolymer.

A composition for forming a phase-separated structure contains a block copolymer having a block (b1) consisting of a repeating structure of a styrene unit and a block (b2) consisting of a repeating structure of a methyl methacrylate unit, in which the block (b2) is disposed at least at one terminal portion of the block copolymer, the block copolymer has a structure (e1) represented by General Formula (e1) at least at one main chain terminal, and the structure (e1) is bonded to the main chain terminal of the block (b2) disposed at a terminal portion of the block copolymer. Re.sup.e0 represents a hydrocarbon group containing a hetero atom, and Re1 represents a hydrogen atom or a halogen atom. ##STR00001##

A terminal hydroxyl functionalized polyfarnesene is provided. The polyfarnesene has more than two terminal hydroxyl groups per molecule, on average, based on the number average molecular weight. The polyfarnesenes may be homopolymers or copolymers of farnesene. Also provided is a method of making these polyfarnesenes having more than two hydroxyl groups per molecule. A composition for making a polyurethane comprising a diisocyanate and the terminal hydroxyl functionalized polyfarnesene is also provided.

In an additive for an epoxy adhesive and an epoxy adhesive composition for construction including same, the additive for an epoxy adhesive is formed by atomic transfer radical polymerization (ATRP) of a polyacrylate of which one terminal is halogenated, as an arm-polymer, and a diacrylate-based compound or a dimethacrylate-based compound, as a cross-linker, and comprises a star polymer of a star-shape having a core/shell structure including a core formed by the polymerization of the cross-linker and a shell formed by a portion of the arm-polymer.