A bio-polyol composition and a bio-polyurethane foam are provided. The bio-polyol composition includes polyol, a surface-modified lignin, and a surfactant represented by formula 1. ##STR00001## wherein R is represented by C.sub.nH.sub.2n+1, n is an integer of 0 to 3; x/y is between 5 and 13; a is an integer of 1 to 100; b is an integer of 1 to 100.

The invention relates to a hyperbranched polymer comprising: a) a hyperbranched polycondensate with hydroxyl end groups, amino end groups, or a combination thereof condensed to b) one or more linking groups connected to c1) one or more polyethylene glycol monomethyl ethers and c2) one or more poly(C.sub.2-C.sub.3)alkylene glycol mono-(C.sub.8-C.sub.22)-alkyl ethers, wherein the weight ratio of components c1):c2) is from 9:1 to 1:9. It further relates to a process for producing the polymer, to a composition comprising the polymer and an active ingredient, and to a method for controlling phytopathogenic fungi or undesired vegetation or insect or acarid infestations or for regulating the growth of plants.

An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots, having enhanced controllability on approach shots under a wet condition, and being excellent in stain resistance and shot feeling. The present invention provides a golf ball comprising a golf ball body having a cover, and a paint film covering the golf ball body, wherein a 10% elastic modulus of the paint film is 75 kgf/cm.sup.2 or less, a storage modulus (E.sub.150) at 150 C. of the paint film obtained by measuring dynamic viscoelasticity of the paint film is 1.010.sup.7 Pa or more, an indentation depth of the paint film measured with a nanoindenter in a state that the paint film is formed on the surface of the golf ball body is 1250 nm or more, and a material hardness of the cover is 50 or more in Shore D hardness.

The present invention provides a polyrotaxane for obtaining a material combining a higher degree of elongation with a higher breaking strength and/or a polyrotaxane having properties not possessed by conventional polyrotaxanes, such as compatibility with compounds to be used in a material, solubility in solvents, and functionality. The polyrotaxanes of the present invention each comprise: a pseudo-polyrotaxane comprising cyclic molecules and a linear molecule which passes through the cavities of the cyclic molecules to form a clathrate; and blocking groups disposed at both ends of the pseudo-polyrotaxane so that the cyclic molecules are not released. The cyclic molecules each include a hydroxyl-inactivation group and a hydroxyl group bonded by a spacer group. The polyrotaxanes have a hydroxyl value of 10-65 mg-KOH/g.

Disclosed is a method comprising: a) dispersing lignin into an alcohol-containing compound having a boiling point in the range of 120 C. to 300 C. to form a lignin dispersion; and b) contacting the lignin dispersion with an alkylene carbonate, optionally in the presence of a basic compound, at a temperature in the range of from 120 C. to 200 C. and a period of time in the range of from 0.25 hours to 24 hours to form an alkoxylated lignin dispersion.

Provided are a polyurethane-modified epoxy resin composition having satisfactory operability of processing, such as casting or impregnation, in a composition state, a production method therefor, and a composition thereof. The polyurethane-modified epoxy resin is obtained by modifying a secondary hydroxyl group-containing bisphenol-based epoxy resin (a) having an epoxy equivalent from 150 g/eq to 200 g/eq and a hydroxyl equivalent from 2,000 g/eq to 2,600 g/eq with a polyol compound (b) having an Mn of 200 or more, a polyisocyanate compound (c), and a polyol compound (d) having an Mn of less than 200 serving as a chain extender. The polyurethane-modified epoxy resin uses the epoxy resin (a) in an amount from 20 wt % to 60 wt % with respect to the total amount of the respective components (a), (b), (c), and (d), and contains a polyurethane having the epoxy resin (a) added to both terminals thereof and/or one terminal thereof.

The present invention is to provide a bound stopper, which has high mechanical strength, is excellent in durability against fatigue breaking, settling or the like when a heavy load is repeatedly received, and is easy to be produced, in which the bound stopper comprises a polyurethane foam obtained from a polyurethane foam composition containing an isocyanate component and a blowing agent, and the isocyanate component contains a urethane prepolymer having an isocyanate group, the urethane prepolymer being obtained from a polyol component, a polyrotaxane containing a cyclic molecule having an active hydrogen group as a constituent, and an isocyanate.

Provided is a prepreg including: a resin composition including a urethane (meth)acrylate (A), a polymerization initiator (B), and an amine catalyst (C); and reinforcement fibers (D). The urethane (meth)acrylate (A) is a reaction product of a polyisocyanate compound (al) and a hydroxyl group-containing compound (a2), the polyisocyanate compound (a1) including polymethylene polyphenyl polyisocyanate and diphenylmethane diisocyanate, the hydroxyl group-containing compound (a2) including a compound having a hydroxyl group and a (meth)acryloyl group. This prepreg has excellent workability and product stability, reduces the occurrence of poor molding, and allows a molded article having excellent workability and handleability to be obtained, and therefore can be used in, for example, automobile components, railway vehicle components, aerospace craft components, ship components, housing equipment components, sporting components, light vehicle components, building and civil engineering components, and casings of OA equipment.

The present invention provides a polyurethane foam containing an amine polymer. In addition, the present invention provides a polyol composition for production of a polyurethane containing a polyol and an amine polymer. The amine polymer is preferably at least one selected from the group consisting of a polyvinylamine, a polyvinylalkylamine, a polyalkyleneimine, a polyaniline and salts thereof.

The present application relates to an acrylic resin suitable for two-component polyurethane coating applications. Provided herein is an acrylic resin comprising at least one epoxy silane oligomer, wherein the epoxy silane oligomer is grafted onto at least one hydroxy group of the acrylic resin; wherein the at least one hydroxy group of the acrylic resin has at least one ureido functionality; and wherein the at least one hydroxy group of the acrylic resin has at least one acid group. A two-component coating system is also disclosed comprising the acrylic resin comprising at least one hydroxy group with at least one epoxy silane oligomer, wherein the at least one hydroxy group of the acrylic resin has at least one ureido functionality.