Osaka Soda Co., Ltd.

Osaka Suda Co Ltd

Tetsuya Nakata

Nobuo Yamada

Akira Hashimoto

Yasuo Matoba

Yukinari Bunnomori

Sachio Shimogawa

Yoshio Kise

Katsuhito Miura

Fumio Toda

Koichi Tanaka

Takashi Kodama

Takashi Fujio

Yasuto Takata

Mikio Arika

Yasumi Shimizu

A method of optically resolving a racemate, or a diastereomeric mixture, of a substituted or unsubstituted glycidyl ester or ether compound having at least one glycidylic structure represented by the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3, independently from each other, represent H or CH.sub.3, and 1 to 3 asymmetric carbon atoms in the molecule, or a racemate of a beta-dihalohydrin ester compound, which comprises contacting said racemate or diastereomeric mixture with an optically active form of a compound having the following formula (I) ##STR2## wherein X represents a halogen atom, to form an inclusion complex compound having the optically active compound of formula (I) as a host, and separating the resulting complex compound.

Method of optically resolving a racemate or a diastereomeric mixture of

A polyether polymer or copolymer with a pendant group of the formula ##STR1## in its molecule, said polymer or copolymer consisting essentially of (1) 1 to 100 mole % of recurring units represented by the following formula (I) ##STR2## and (2) 0 to 99 mole % of at least one type of recurring units represented by the following formula (II) ##STR3## and having a reduced viscosity .eta..sub.red, determined at 45.degree. C. in its 0.1% benzene solution or at 80.degree. C. in its 0.1% monochlorobenzene solution, of at least 0.01; a process for producing thereof and novel epoxyether compound therefor.

Polyether polymer or copolymer, monomer therefor, and process for

A rubbery solid polymer or copolymer of a carboxylic acid glycidyl ester having a repeating unit of formula (I), repeating units of formulae (I) and (II) in which the (I)/(II) mole ratio is 50-99/50-1, repeating units of formulae (I), (II) and (III) in which the (I)/(II)/(III) mole ratio is 1-90/1-10/3-40, repeating units of formulae (I), (II) and (IV) in which the (I)/(II)/(IV) mole ratio is 35-90/1-20/not less than 5, repeating units of formulae (I) and (III) in which the (I)/(III) mole ratio is 50-97/50-3, repeating units of formulae (I), (III) and (IV) in which the (I)/(III)/(IV) mole ratio is 35-90/5-60/not less than 5, or repeating units of formulae (I), (II), (III) and (IV) in which the (I)/(II)/(III)/(IV) mole ratio is 35-85/3-10/3-55/not less than 5 ##STR1## wherein R represents a saturated alkyl group having 1 to 4 carbon atoms, ##STR2## wherein X represents a halogen atom, ##STR3## wherein R.sup.1 represents H or CH.sub.3 ; and a curable composition thereof.

Rubbery solid polymer or copolymer of glycidyl carboxylate and

A cured or uncured chlorinated polyethylene composition comprising

Chlorinated polyethylene composition and process for curing chlorinated

Uncured chlorinated polyethylene composition with hexamethylphosphoric

A cured or uncured composition of a homopolymer or copolymer of an epihalohydrin comprising a homopolymer or copolymer of an epihalohydrin, a curing amount of a curing agent therefor and an acid acceptor, characterized in that the curing agent and acid acceptor are free from a cyclic carboxylic acid anhydride and consist, based on 100 parts by weight of the epihalohydrin homopolymer or copolymer, of (a) a component selected from the group consisting of 1 to 200 parts by weight of an acid salt of 1 mole of a polybasic carboxylic acid with 1 mole of 1,8-diazabicyclo(5,4,0)undecene-7 and a mixture of 1 to 200 parts by weight of a polybasic carboxylic acid and 1 to 10 parts by weight of a neutral salt of 1,8-diazabicyclo(5,4,0)undecene-7, and (b) 1 to 20 parts by weight of a specific metal compound of Group II and Group IVa of the periodic table of elements.

Cured or uncured compositions of homopolymers and copolymers of

A cured or uncured composition of homo- or copolymer of epihalohydrins comprising a homo- or copolymer of an epihalohydrin, curable amounts of a curing agent therefor and an acid acceptor, characterized in that said curing agent and acid acceptor consist, on the basis of 100 parts by weight of said homo- or copolymer of epihalohydrin, of (a) 0.1 - 10 parts by weight of a cyclic carboxylic acid anhydride, (b) 0.1 - 10 parts by weight of a compound selected from the group consisting of 1,8-diazabicyclo(5,4,0)undecene-7 and salts thereof, and (c) 0.5 - 20 parts by weight of a metal compound selected from the group consisting of the oxides of the metals of group II of the periodic table of elements, hydroxides of said group II metals, carbonates of said group II metals, carboxylic acid salts of said group II metals, oxides of the metals of group IVa of the periodic table of elements, basic carbonates of said group IVa metals, basic carboxylic acid salts of said group IVa metals and basic phosphites of said group IVa metals.

Cured or uncured compositions of homo- or copolymers of epihalohydrins

A cured or uncured rubber composition comprising 1. a rubber component about 1 to 100% of which consists of a homopolymer or copolymer of an epihalohydrin, 2. a curing amount of a curing agent therefor consisting of a salt of an ethylenically unsaturated monocarboxylic acid with 1,8-diazabicyclo(5,4,0) undecene-7 and an organic peroxide, and 3. an acid acceptor.

Cured or uncured rubber composition containing homopolymers or

Improved process for preparing a cross-linked epichlorohydrin elastomer composition by heating an epichlorohydrin elastomer in the presence of a compound selected from the group consisting of the quinones and derivatives thereof of the following formula ##SPC1## Wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, are each a member selected from the class consisting of hydrogen and the hydrocarbon groups, and R.sub.1 and R.sub.2 taken together, may form a benzene ring.

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Ibaraki, Japan

Tetsuya Nakata