Provided is a composition for optical materials that gives optical materials which can have at least one improved property selected from among satisfactory mold releasability after polymerization and curing, unsusceptibility to separation from the mold during polymerization and curing, transparency, and low-level striae. The present invention further provides a compound represented by formula (1). The composition for optical materials comprises the compound represented by formula (1) and a compound represented by formula (2). (In formula (1), X.sub.1 and X.sub.2 represent O or S, provided that both X.sub.1 and X.sub.2 are O or that X.sub.1 is O and X.sub.2 is S.)

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A battery includes a cathode including a cathode active material, an anode comprising lithium, and an electrolyte including an aprotic solvent, a lithium salt, and a compound or mixture of two or more different compounds each containing at least one epi-sulfide group.

A battery includes a cathode including a cathode active material, an anode comprising lithium, and an electrolyte including an aprotic solvent, a lithium salt, and a compound or mixture of two or more different compounds each containing at least one epi-sulfide group.

A composition containing: a compound (a) represented by Formula (1):

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wherein Ar represents an aromatic ring, m represents an integer of 2 to 8, n represents an integer of 0 to 6, provided that m+n is equal to or less than a number of carbon atoms that constitute the aromatic ring, and R.sup.1 each independently represents an alkylthio group, an epoxyalkylthio group, a thiol group, a halogen group, a hydroxy group, a dialkylthiocarbamoyl group, or a dialkylcarbamoylthio group; and a polythiol (b).

The present disclosure provides chemical compound derivatives of a class of biological lipid mediators known as endocannabinoids and methods of synthesizing the compositions. These compounds are useful for treating cancer, reducing inflammation, reducing platelet aggregation, and reducing angiogenesis.

The present disclosure provides chemical compound derivatives of a class of biological lipid mediators known as endocannabinoids and methods of synthesizing the compositions. These compounds are useful for treating cancer, reducing inflammation, reducing platelet aggregation, and reducing angiogenesis.

The present invention makes it possible to provide a compound represented by formula (1) and a composition for an optical material containing this compound.

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(Where m+n=4, m represents an integer of from 0 to 3, and n represents an integer of from 1 to 4.) In addition, the present invention makes it possible to provide a method for producing an optical material, the method including a step for adding 0.0001-10 parts by mass of a polymerization catalyst per 100 parts by mass of the composition for an optical material, polymerizing, and curing.

The present invention makes it possible to provide a compound represented by formula (1) and a composition for an optical material containing this compound.

##STR00001##

(Where m+n=4, m represents an integer of from 0 to 3, and n represents an integer of from 1 to 4.) In addition, the present invention makes it possible to provide a method for producing an optical material, the method including a step for adding 0.0001-10 parts by mass of a polymerization catalyst per 100 parts by mass of the composition for an optical material, polymerizing, and curing.

Provided an optical material composition which makes it possible to design an optical material exhibiting a broad range of properties. This optical material composition contains a compound (A) represented by formula (1) and a polythiol (a), and does not contain 1,2,3,5,6-pentathiepane (b). ##STR00001##

Provided an optical material composition which makes it possible to design an optical material exhibiting a broad range of properties. This optical material composition contains a compound (A) represented by formula (1) and a polythiol (a), and does not contain 1,2,3,5,6-pentathiepane (b). ##STR00001##