The present invention provides a tread rubber composition that is excellent in wet grip performance during the initial phase of running and tensile properties, and a pneumatic tire including the tread rubber composition. The present invention relates to a tread rubber composition containing: a diene rubber; silica; and sulfur and/or a sulfur-containing compound, the tread rubber composition satisfying the following relationships (1) to (3):
EB/M300≥50  (1);
M100≥1.7 MPa  (2); and
EB≥500%  (3).

A rubber composition for golf balls includes (a) a base rubber, (b) a co-crosslinking agent which is an α,β-unsaturated carboxylic acid and/or a metal salt thereof, (c) a crosslinking initiator, and (d) an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. When the rubber composition is used in a golf ball having a core and a cover of one or more layers encasing the core, by setting the hardness difference in the core interior hardness profile to a large value while maintaining a desired core hardness, low spin properties can be manifested on golf ball shots, enabling the flight performance of the ball to be improved.

A rubber composition for golf balls includes (a) a base rubber, (b) a co-crosslinking agent which is an α,β-unsaturated carboxylic acid and/or a metal salt thereof, (c) a crosslinking initiator, and (d) an alcohol having a value obtained by dividing the molecular weight of the alcohol by the number of hydroxyl groups thereon which is 70 or less. When the rubber composition is used in a golf ball having a core and a cover of one or more layers encasing the core, by setting the hardness difference in the core interior hardness profile to a large value while maintaining a desired core hardness, low spin properties can be manifested on golf ball shots, enabling the flight performance of the ball to be improved.

The present invention relates to an UV-curable pressure sensitive acrylic adhesive obtainable by reacting in a first step a mixture comprising: (i) at least one acrylic monomer of formula (I) ##STR00001##
wherein R.sup.1 is H or CH.sub.3; and wherein R.sup.2 and R.sup.3 are both H or both CH.sub.3; and n is an integer from 0 to 22; or mixtures thereof; and (ii) at least one monomer which comprises a pendant reactive functional group selected from cycloaliphatic epoxides, oxetanes, mono-substituted oxiranes or mixtures thereof; and in a second step reacting the obtained mixture from the first step with (iii) at least one cationic photoinitiator; and (iv) optionally further additives. An article comprising this adhesive, and a method of manufacturing the article.

The present invention relates to an UV-curable pressure sensitive acrylic adhesive obtainable by reacting in a first step a mixture comprising: (i) at least one acrylic monomer of formula (I) ##STR00001##
wherein R.sup.1 is H or CH.sub.3; and wherein R.sup.2 and R.sup.3 are both H or both CH.sub.3; and n is an integer from 0 to 22; or mixtures thereof; and (ii) at least one monomer which comprises a pendant reactive functional group selected from cycloaliphatic epoxides, oxetanes, mono-substituted oxiranes or mixtures thereof; and in a second step reacting the obtained mixture from the first step with (iii) at least one cationic photoinitiator; and (iv) optionally further additives. An article comprising this adhesive, and a method of manufacturing the article.

To provide a plastic lens which can absorb light with a wavelength of 400 to 420 nm with sufficiently high efficiency but is reduced in the absorption of light with a wavelength of around 420 nm or longer, is less affected by harmful light, suppresses yellow coloration and therefore has excellent appearance, suppresses yellowish discoloration over time, and has excellent heat resistance, light resistance, and also optical performance, particularly an excellent Abbe's number. The plastic lens is characterized by containing an ultraviolet absorbing agent represented by the following formula (I): ##STR00001##
(in the formula, R.sup.1 to R.sup.8 each independently represent a monovalent group such as a hydrogen atom, R.sup.9 represents a monovalent sulfur-containing group represented by the following formula (i): ##STR00002##
(in the formula, R.sup.10 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.11 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.12 represents a monovalent hydrocarbon group with 1 to 20 carbon atoms; the total number of carbon atoms in R.sup.10, n number of R.sup.11, and R.sup.12 is 30 or less; m represents an integer of 0 or 1; and n represents an integer of 0 to 3)), and a resin material.

To provide a plastic lens which can absorb light with a wavelength of 400 to 420 nm with sufficiently high efficiency but is reduced in the absorption of light with a wavelength of around 420 nm or longer, is less affected by harmful light, suppresses yellow coloration and therefore has excellent appearance, suppresses yellowish discoloration over time, and has excellent heat resistance, light resistance, and also optical performance, particularly an excellent Abbe's number. The plastic lens is characterized by containing an ultraviolet absorbing agent represented by the following formula (I): ##STR00001##
(in the formula, R.sup.1 to R.sup.8 each independently represent a monovalent group such as a hydrogen atom, R.sup.9 represents a monovalent sulfur-containing group represented by the following formula (i): ##STR00002##
(in the formula, R.sup.10 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.11 represents a divalent hydrocarbon group with 1 to 20 carbon atoms or the like; R.sup.12 represents a monovalent hydrocarbon group with 1 to 20 carbon atoms; the total number of carbon atoms in R.sup.10, n number of R.sup.11, and R.sup.12 is 30 or less; m represents an integer of 0 or 1; and n represents an integer of 0 to 3)), and a resin material.

A negative type photosensitive resin composition containing an epoxy group-containing resin; a metal oxide; and a cationic polymerization initiator (I). The cationic polymerization initiator (I) contains one or more of a compound represented by Formula (I1) and a compound represented by Formula (I2). In Formula (I1), R.sup.b01 to R.sup.b04 represent an aryl group which may have a substituent or a fluorine atom. In Formula (I2), R.sup.b05 represents a fluorinated alkyl group which may have a substituent or a fluorine atom. A plurality of R.sup.b05's may be the same as or different from one another. q represents an integer of 1 or greater, and Q.sup.q+'s each independently represent a q-valent organic cation. ##STR00001##

A negative type photosensitive resin composition containing an epoxy group-containing resin; a metal oxide; and a cationic polymerization initiator (I). The cationic polymerization initiator (I) contains one or more of a compound represented by Formula (I1) and a compound represented by Formula (I2). In Formula (I1), R.sup.b01 to R.sup.b04 represent an aryl group which may have a substituent or a fluorine atom. In Formula (I2), R.sup.b05 represents a fluorinated alkyl group which may have a substituent or a fluorine atom. A plurality of R.sup.b05's may be the same as or different from one another. q represents an integer of 1 or greater, and Q.sup.q+'s each independently represent a q-valent organic cation. ##STR00001##

A chemically amplified positive-type photosensitive resin composition capable of forming a resist pattern having excellent cross-sectional perpendicularity of a nonresist section even when a resist pattern is formed on a metal surface, and a method for manufacturing a substrate with a template and a method for manufacturing a plated article using the composition. The composition contains an acid generator, a resin, and a sulfur-containing compound including a sulfur-containing compound and a thiol compound that is different from the sulfur-containing compound.