Daicel Chemical Industries, Ltd.

Origin Electric Company, Limited

Kiyoshi Okitsu

Shoji Watanabe

Akira Yamamoto

Hajime Namikoshi

Toshio Endo

Tomohisa Isobe

Takaaki Murai

Masahiro Asami

Kimio Inoue

Katsuya Maruo

Masatoshi Mikumo

Kaoru Mochizuki

Yoshiaki Okumura

Hiroyouki Go

A polyurethane resin obtained from a diisocyanate compound and a polyester polyol. The polyester polyol may (1) comprise not less than 50% by weight of a polyester glycol having a molecular weight of 500-5,000, the polyester glycol being obtained by reacting an acid and 3,3,5-trimethyl-1,6-hexanediol or 2,2,4-trimethyl-1,6-hexanediol and have a molecular weight of 500-5,000, (2) have a number average molecular weight of 500-5,000 and an alcohol hydroxyl group at terminals thereof and comprise not less than 50% by weight of ester units, the ester units being derived from a dicarboxylic acid and 3,3,5-trimethyl-1,6-hexanediol and/or 2,2,4-trimethyl-1,6-hexanediol, or (3) have a number-average molecular weight of 500-5,000 and comprise not less than 50% by weight of ester units of an aliphatic dicarboxylic acid and trimethyl-1,6-hexanediols. The above polyurethane resins may be combined with chlorinated polyolefin and then used in binder compositions or, alternately used in coating compositions for decoration paper made of a polyolefin resin. The above polyurethane resins may also be laminated on at least one surface of a woven cloth made of synthetic resin to form a laminated clothing that may further be used in an air bag for a vehicle.

Binder composition and coating composition for decorative paper both based on polyurethane resin, and laminated cloth and air bag both having coating of the same

Surface-coated molded plastic articles having good durability

.epsilon.-caprolactone-modified hydroxyalkyl acrylate or methyacrylate can be effectively produced from .epsilon.-caprolactone and a hydroxyalkyl acrylate or methacrylate in the presence of a stannous halide as a catalyst. The obtained monomer is used together with another copolymerizable monomer to produce a copolymer which is suitable for coating and photocurable composition.

Process for producing epsilon-caprolactone-modified hydroxyalkyl

A lactone-modified hydroxyethyl (meth)acrylate solution comprising 30 to 95 parts by weight of a lactone-modified hydroxyethyl (meth)acrylate represented by the formula (I): ##STR1## wherein R is CH.sub.3 or H, and n is an integer of from 3 to 20, and 5 to 70 parts by weight of a solvent selected from the group consisting of toluene, xylene, an acetic acid ester and a mixture thereof is disclosed. The solution of the invention is homogeneous at room temperature.

Lactone-modified hydroxyethyl (meth) acrylate solution

A process for manufacturing a colorless polyetheresteramide, which comprises the step of reacting (A) a polyamide-forming compound selected from aminocarboxylic acids and lactams each having at least 10 carbon atoms, (B) a dicarboxylic acid having from 4 to 20 carbon atoms and (D) a polyoxyalkylene glycol having an average molecular weight of from 300 to 6,000, in the molten state, in the presence of 0.0001 to 0.00999 percent by weight, based on the total weight of the above mentioned reactants, of a tetraalkyl titanate having a straight or branched alkyl having 1 to 24 carbon atoms, at a pressure of at the highest 5 mmHg at a temperature of 200.degree. to 300.degree. C.

Process for manufacturing polyetheresteramide

A process for preparing a graft polymer by subjecting a cyclic ester to ring-opening polymerization in the presence of a cellulose derivative in the presence of a ring-opening polymerization catalyst for the cyclic ester. The resulting graft polymer has high transparency, good film-formability and high solubility and can be suitably used as a novel polymer material.

Process for preparing novel graft polymer

A radiation-curable resin composition is disclosed. It comprises 0.1 to 10 parts by weight of a photosensitizer added to 100 parts by weight of a mixture of 40 to 95 wt % of a resin having a molecular weight of at least 300 and at least one ethylenically unsaturated group in the molecule and 60 to 5 wt % of .epsilon.-caprolactone modified 2-hydroxyethyl acrylate or methacrylate of the formula: ##STR1## wherein R=H or CH.sub.3 and

Radiation-curable resin composition

An epoxy resin having hydroxyl groups is modified with .epsilon.-caprolactone by effecting the ring opening polymerization of .epsilon.-caprolactone onto the hydroxyl groups contained in the epoxy resin. The modified epoxy resin is further combined with a polycarboxylic anhydride and a promotor for curing, or polyamine to give a curable composition. The modified epoxy resin is further modified by reacting the epoxy groups therein with a primary or secondary amine. Both the modified resin and the compositions are useful as coating.

Modified epoxy resin and composition

A lactone-modified epoxy (meth)acrylate resin is disclosed as is a hardenable resin composition which includes the lactone-modified epoxy resin. The lactone-modified epoxy (meth)acrylate resin is obtained by addition polymerizing 3 to 95 parts by weight of a lactone to 97 to 5 parts by weight of an epoxy (meth)acrylate resin at the whole or a part of the secondary hydroxy groups thereof. The hardenable resin composition comprises (A) 5 to 95 parts by weight of the above referred to lactone-modified epoxy (meth)acrylate resin, (B) 95 to 5 parts by weight of a vinyl compound having an ethylenically unsaturated bond, and (C) 0 to 10 parts by weight of a photosensitizer.

Modified epoxy (meth) acrylate resin and hardenable resin composition

A polyester compound has an average molecular weight of 700 to 3000 and is modified with epsilon-caprolactone. It is prepared from (a) epsilon-caprolactone or omega-hydroxycaproic acid, (b) an aliphatic diol component, (c) an aromatic or aliphatic polybasic carboxylic component and (d) an aromatic monocarboxyl to terminate each polymer chain.

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Shizuoka, Japan

Kiyoshi Okitsu