An object of the present invention is to provide a golf club grip having excellent abrasion resistance and a high coefficient of friction. The present invention provides a golf club grip comprising an outermost layer, wherein at least a part of the outermost layer is formed from a rubber composition containing (A) a base rubber and (B) carbon black, (B) the carbon black has a DBP absorption amount in a range from 50 cm.sup.3/100 g to 140 cm.sup.3/100 g and a CTAB specific surface area in a range from 30 m.sup.2/g to 160 m.sup.2/g, a product (amountDBP absorption amount) obtained by multiplying an amount (g) of (B) the carbon black in the rubber composition with respect to 100 g of (A) the base rubber by the DBP absorption amount (cm.sup.3/100 g) ranges from 380 to 2600, a product (amountCTAB specific surface area) obtained by multiplying the amount (g) of (B) the carbon black in the rubber composition with respect to 100 g of (A) the base rubber by the CTAB specific surface area (m.sup.2/g) ranges from 425 to 3000, and the part formed from the rubber composition has tan (30 C., 10 Hz) in a range from 0.100 to 0.280.

A cross-linked rubber prepared by cross-linking a nitrile rubber composition including: a carboxyl group-containing highly saturated nitrile rubber containing 5 to 60 wt % of an ,-ethylenically unsaturated nitrile monomer unit, and an ,-ethylenically unsaturated monocarboxylic acid ester monomer unit, and having an iodine value of 120 or less; a surface treated silicate; and a polyamine-based cross-linking agent wherein a content is 0.1 to 20 parts by weight with respect to 100 parts by weight of the carboxyl group-containing highly saturated nitrile rubber, wherein when the rubber is subjected to a compression stress relaxation test wherein it is maintained at 150 C. while being compressed by 25%, the time until which the compression stress comes to be 50% of the initial compression stress at the start of the test, the compression stress after 30 minutes from the start of the test, is 300 hours or more.

A cross-linked rubber prepared by cross-linking a nitrile rubber composition including: a carboxyl group-containing highly saturated nitrile rubber containing 5 to 60 wt % of an ,-ethylenically unsaturated nitrile monomer unit, and an ,-ethylenically unsaturated monocarboxylic acid ester monomer unit, and having an iodine value of 120 or less; a surface treated silicate; and a polyamine-based cross-linking agent wherein a content is 0.1 to 20 parts by weight with respect to 100 parts by weight of the carboxyl group-containing highly saturated nitrile rubber, wherein when the rubber is subjected to a compression stress relaxation test wherein it is maintained at 150 C. while being compressed by 25%, the time until which the compression stress comes to be 50% of the initial compression stress at the start of the test, the compression stress after 30 minutes from the start of the test, is 300 hours or more.

A cross-linked rubber prepared by cross-linking a nitrile rubber composition including: a carboxyl group-containing highly saturated nitrile rubber containing 5 to 60 wt % of an ,-ethylenically unsaturated nitrile monomer unit, and an ,-ethylenically unsaturated monocarboxylic acid ester monomer unit, and having an iodine value of 120 or less; a surface treated silicate; and a polyamine-based cross-linking agent wherein a content is 0.1 to 20 parts by weight with respect to 100 parts by weight of the carboxyl group-containing highly saturated nitrile rubber, wherein when the rubber is subjected to a compression stress relaxation test wherein it is maintained at 150 C. while being compressed by 25%, the time until which the compression stress comes to be 50% of the initial compression stress at the start of the test, the compression stress after 30 minutes from the start of the test, is 300 hours or more.

This invention relates to cyanoacrylate-containing compositions that include (a) a beta-alkoxy cyanoacrylate component, (b) a cyanoacrylate component selected from the group consisting of 2-methylbutyl cyanoacrylate, isoamyl cyanoacrylate, 2-ethylhexyl cyanoacrylate, 2-pentyl cyanoacrylate, 3-methylpentyl cyanoacrylate, 2-ethylbutyl cyanoacrylate, 3,7-dimethyloctyl cyanoacrylate, and combinations thereof; and (c) a rubber toughening component. Cured products of the inventive cyanoacrylate compositions demonstrate improved toughness without an odor typically found with cyanoacrylate-containing compositions.

This invention relates to cyanoacrylate-containing compositions that include (a) a beta-alkoxy cyanoacrylate component, (b) a cyanoacrylate component selected from the group consisting of 2-methylbutyl cyanoacrylate, isoamyl cyanoacrylate, 2-ethylhexyl cyanoacrylate, 2-pentyl cyanoacrylate, 3-methylpentyl cyanoacrylate, 2-ethylbutyl cyanoacrylate, 3,7-dimethyloctyl cyanoacrylate, and combinations thereof; and (c) a rubber toughening component. Cured products of the inventive cyanoacrylate compositions demonstrate improved toughness without an odor typically found with cyanoacrylate-containing compositions.

A thermoplastic vulcanizate is provided, including 10-50 parts by weight of a nylon plastic and 50-90 parts by weight of a cross-linked acrylic rubber polymer. The cross-linked acrylic rubber polymer is dispersed in the Nylon plastic. The cross-linked acrylic rubber polymer is formed by a modified acrylic rubber polymer having a hydrolysable silane group through crosslinking in the presence of water. In the modified acrylic rubber polymer having a hydrolysable silane group, a linkage group represented by formula (I) or formula (II) is between a backbone and the hydrolysable silane group: ##STR00001## wherein R1 is H or OH; R2 is H, ZSi(OR).sub.3 or C.sub.1-C.sub.10 hydrocarbon group; R3 is H or C.sub.1-C.sub.10 hydrocarbon group; Z is a divalent bridging group; R is individually C.sub.1-C.sub.10 hydrocarbon group. A manufacturing method of the thermoplastic vulcanizate is also provided.

Disclosed is a method of: providing a solution having a solvent, a polybutadiene, and an acrylate; and functionalizing the polybutadiene with the diacrylate to produce an ionic polymer. The polymer may be useful as an additive manufacturing binder.

The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers. Articles made of this translucent composition are useful in commercial and residential lighting, motor vehicle illumination (lights, panels), street lighting, displays and signs, desktop monitors, and LCD/LED TVs.

A rubber composition according to an embodiment includes: a rubber component comprising diene rubber; and fine particles which are formed of a specific polymer and have a glass transition point of 70 C. to 0 C. The fine particles are fine particles formed of a (meth)acrylate polymer having a constitutional unit represented by formula (1) or formed of a polymer having a constitutional unit represented by formula (4). In formula (1), R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents an alkyl group having 4 to 18 carbon atoms. In formula (4), at least one of R.sup.11, R.sup.12, R.sup.13, R.sup.14, R.sup.15, and R.sup.16 represents an aliphatic hydrocarbon group having 3 to 8 carbon atoms, and the remainder represents a hydrogen atom or an aliphatic hydrocarbon group having 1 or 2 carbon atoms. ##STR00001##