Kao Soap Company, Ltd.

Kahei Sakaguchi

Shigeru Takamori

Hirotaka Takemoto

Yoshinao Kono

Jun-ichi Furukawa

Masaaki Minakata

Kazutaka Yamashita

Fumiko Sugimoto

Eizi Morimoto

Massaaki Minakata

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 process for preparing resin-impregnated glass fiber mats in which the binder resin has a high rate of dissolution in vinyl monomers. The binder resin is a styrene resin or copolymer composed mainly of styrene, which has a melting point of 100.degree. to 150.degree. C. and a molecular weight of 2500 to 7000, or a mixture of said styrene resin or copolymer with an unsaturated polyester resin having a melting point of 80.degree. to 130.degree. C.

Process for preparation of glass fiber mats

A toner composition capable of being charged with a positive electrical charge and adapted for use in electrophotography which comprises 1 to 20 parts by weight of a colorant and 80 to 99 parts by weight of a resin, characterized in that said resin consists essentially of

Toner composition for use in electrophotography comprising novel

A toner composition for use in electrophotography and capable of being charged with a positive electric charge, which comprises 1 to 20 parts by weight of a colorant and 80 to 99 parts by weight of a resin, characterized in that said resin consists essentially of

A toner composition for use in electrophotography comprising 1 to 20 parts by weight of a colorant and 80 to 99 parts by weight of a resin, wherein said resin consists essentially of

A thermosetting resin composition consisting essentially of (1) a prepolymer having a thermal vinyl group, prepared by reacting (a) a polyepoxide compound with at least one equivalent, per epoxy group of said polyepoxide compound, of (b) a dicarboxylic acid half ester having the formula: ##SPC1## Wherein R is ##EQU1## in which n is an integer of 1 to 4 and X is H or CH.sub.3, and R' is a divalent aliphatic group having 2 to 6 carbon atoms or a divalent aromatic radical having 6 or 7 carbon atoms; and (2) a vinyl monomer copolymerizable therewith.

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Wakayama, Japan

Kahei Sakaguchi