Kao Soap Company, Ltd.

Jun-ichi Furukawa

Yoshinao Kono

Kahei Sakaguchi

Yukinaga Yokota

Shigeru Takamori

Masao Niki

Massaaki Minakata

Hiroshi Fukuzaki

Glass fiber mats are prepared by binding glass fibers with a resinous component, wherein the resinous component is an unsaturated polyester resin powder having a melting point of 80.degree. to 130.degree. C and a molecular weight of 2,500 to 7,000 obtained by reacting (A) one mole of a dicarboxylic acid component comprising an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride thereof, alone or in admixture thereof with a saturated dicarboxylic acid, with (B) 0.9 to 1.1 moles of a polyol component containing at least 50 molar percent of bis(.beta.-hydroxy-ethyl) terephthalate of the formula: ##STR1##

Process for preparing glass fiber mats

A sizing agent for glass fibers comprises a lubricant for glass fibers, a coupling agent, an antistatic agent and a film-forming substance composed of an oil-in-water type emulsion of an unsaturated polyester obtained by reacting a dibasic acid, an adduct of bisphenol A and alkylene oxide, an adduct of caster oil and an alkylene oxide or polyethylene glycol and an amino-glycol or its derivative.

Sizing agent for glass fibers

A liquid resinous composition is prepared by reacting a dibasic acid component containing .alpha.,.beta.-unsaturated basic acid with a glycol component to form an unsaturated polyester having an acid value of at least 10 and a molecular weight of 1,000 to 10,000, mixing the polyester with a basic substance to neutralize unreacted carboxyl groups and then subjecting the resulting water solubilized unsaturated polyester to addition reaction with a monovinyl compound. The composition is suited for adhesive, coating, printing ink, and binder.

Process for preparing a liquid resinous composition and the composition

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Wakayama, Japan

Jun-ichi Furukawa