Abstract: By applying a compound selected from jasmonic acid represented by the following general formula (I) or 2-substituted form of jasmonic acid or derivatives thereof or salts thereof, the pharmacological action of a pesticide such as a microbicide or a herbicide applied to the plant is enhanced. (wherein R1 is an alkyl group or an alkenyl group, and R2 is a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group or a hydroxyalkyl group).

Abstract: A diene rubber (A) having a weight average molecular weight (Mw) of 100,000 to 3,000,000, an Mw/number average molecular weight (Mn) ratio of 1.30 to 2.50, and an Mw/peak top molecular weight (Mp) ratio 0.70 to 1.30. A rubber composition comprising the diene rubber (A) and a diene rubber (B) having an Mw of 2,000 to 90,0000 and/or an oil extender for rubber has good processability and can give a rubber vulcanizate having high tensile strength and good abrasion resistance. The diene rubber (A) is produced by conducting a living polymerization of diene monomer in a hydrocarbon solvent; adding a polymerization stopper to a polymerization mixture at a conversion of 5 to 98% to deactivate 10 to 90% by mole of active terminals present as of the initiation of polymerization; and finally adding a polymerization stopper to completely terminate the polymerization reaction.

Abstract: A toner for development of electrostatic images, comprising colored particles containing at least a binder resin, a colorant and a softening agent, wherein the softening agent is an organic compound having a molecular weight of at least 1,000, a solubility of at least 5 g in 100 g of styrene as measured at 25° C., and an acid value of at most 10 mg KOH/g. The toner is excellent in fixing ability, shelf stability and flowability and permits forming images having high image quality. A production process thereof is also provided.

Abstract: A conjugated diene polymer rubber composition for modifying a resin comprising a conjugated diene homopolymer or copolymer in which the content of cis-bond units in the total conjugated diene monomer units is at least 40%; the weight average molecular weight (Mw) is 20,000 to 10,000,000; and the Mw and the number average molecular weight (Mn) satisfy the formula: log(Mw/Mn)<0.162×log(Mw)−0.682, (i) A resin composition comprising a resin and the conjugated diene polymer rubber composition, and (ii) a polyaromatic vinyl resin composition prepared by polymerizing an aromatic vinyl monomer in the presence of the conjugated diene polymer rubber composition have balanced and good low-temperature resistance and surface luster.