Yoshino Kogyosho Co., Ltd.

Momentive Performance Materials Japan LLC

Masanori Kimura

Nobuichi Seki

Yoshiyuki Ichizawa

Yukio Koshidaka

Toshio Yamato

Naohito Hara

There is provided an aqueous coating agent composition that does not contain an organotin compound and forms a coating film having good slipperiness and having excellent adhesiveness (adhesion) and abrasion resistance. The aqueous coating agent composition contains: (A) polydiorganosiloxane having both terminals blocked with hydroxyl groups, the polydiorganosiloxane having a viscosity of 50 to 100,000,000 mPa·s (at 25° C.); (B) polyorganohydrogensiloxane having at least three hydrogen atoms in one molecule; (C) a zinc compound as a curing catalyst; (D) an organic compound and/or polyorganosiloxane having at least one of a primary amino group and a secondary amino group; (E) an adhesion improving component; and (F) spherical particles.

Aqueous coating agent composition

A coating composition contains (A) a water-based emulsion containing (a) amino group-containing polyorganosiloxane having a self crosslinking property, (b) chlorinated polyolefin, and (c) a water dispersible polyurethane resin, and (B) spherical particles made up of a rubbery elastic body mixed and dispersed in the water-based emulsion (A). The water-based emulsion (A) can be obtained by mixing a first emulsion containing the amino group-containing polyorganosiloxane (a), a second emulsion containing the chlorinated polyolefin (b), and the water dispersion of the polyurethane resin (c). The coating composition can form a coating film excellent in preservation stability, coating uniformity, working life, having good non-tackness, water repellancy, lubricity, and excellent in adhesiveness and abrasion resistance.

Coating composition

A holding jig for such a preform formed of a synthetic resin into a bottomed cylindrical shape as is to be assembled by inserting a mouth cylinder portion to an insertion limit into the leading end portion of a cylindrical jig body having a pin inserting bore formed therethrough at its center for a drawing pin to be inserted thereinto. The holding jig comprises a support portion disposed in the inner circumference of the leading end portion of the jig body at a position to confront a peripheral projecting ridge of the mouth cylinder portion, for making such external contact with the outer circumference of the peripheral projecting ridge as to insert and extract of the mouth cylinder portion, thereby to hold the assembled posture of the preform. The holding jig can hold the preform stably in a predetermined posture thereby to achieve a high productivity for the biaxial orientation blow-molded bottle.

Preform holding jig for biaxial orientation blow molding

Biaxial orientation blow molding method and preform holding jig

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Tokyo, Japan

Masanori Kimura