Enantiomers of butanediol diglycidyl ether (BDDE) are present in an enantiomerically enriched enantioenriched mixture of BDDE stereisomers or in an enantiomerically pure BDDE. Enantiomerically enriched or pure BDDE is useful as a cross-linking agent, such as in the preparation of a cross-linked hyaluronic acid product.

Disclosed herein are compositions and methods of making phenolic compounds, and resins comprising these phenolic compounds. The compounds include multifunctional epoxies, amino glycidyl derivatives, and multi-functional amines prepared from hydroxymethyl derivatives of phenols and bisphenols. In one embodiment, a compound is of formula I ##STR00001##
wherein R.sub.1 is H or Z; each R.sub.2, R.sub.3, and R.sub.4, independently, are N(Z).sub.2, N(CH.sub.2OZ).sub.2, N(CH.sub.2CH.sub.2OZ).sub.2, N(CH.sub.2OH).sub.2, N(CH.sub.2NH.sub.2).sub.2, OZ, CH.sub.2OZ, CH.sub.2CH.sub.2OZ, CH.sub.2OH, CH.sub.2NH.sub.2, OC(CH.sub.3).sub.3, or O-(alkylene)-CH.sub.3; and Z is ##STR00002##

Disclosed herein are compositions and methods of making phenolic compounds, and resins comprising these phenolic compounds. The compounds include multifunctional epoxies, amino glycidyl derivatives, and multi-functional amines prepared from hydroxymethyl derivatives of phenols and bisphenols. In one embodiment, a compound is of formula I ##STR00001##
wherein R.sub.1 is H or Z; each R.sub.2, R.sub.3, and R.sub.4, independently, are N(Z).sub.2, N(CH.sub.2OZ).sub.2, N(CH.sub.2CH.sub.2OZ).sub.2, N(CH.sub.2OH).sub.2, N(CH.sub.2NH.sub.2).sub.2, OZ, CH.sub.2OZ, CH.sub.2CH.sub.2OZ, CH.sub.2OH, CH.sub.2NH.sub.2, OC(CH.sub.3).sub.3, or O-(alkylene)-CH.sub.3; and Z is ##STR00002##

There is provided an epoxy compound exhibiting excellent heat resistance and flame retardance of a cured product thereof; an epoxy resin containing the epoxy compound; a curable composition and a cured product thereof; and a semiconductor sealing material. The epoxy compound has a diarylene[b,d]furan structure, in which at least one of two arylene groups has a naphthylene skeleton and two arylene groups each include a glycidyloxy group on an aromatic nucleus thereof.

The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.

The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.

Disclosed herein are compositions and methods of making phenolic compounds, and resins comprising these phenolic compounds. The compounds include multifunctional epoxies, amino glycidyl derivatives, and multi-functional amines prepared from hydroxymethyl derivatives of phenols and bisphenols.

A method of producing an epoxy compound, which comprises reacting hydrogen peroxide with a compound having a carbon-carbon double bond, in the presence of at least one of a tungsten compound and a molybdenum compound; and an onium salt comprising 20 or more carbon atoms and one or more of substituents convertible to a functional group containing an active hydrogen or a salt thereof.

High purity epoxide compounds methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.

High purity epoxide compounds methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.