公开(公告)号：JPH0753736A

公开(公告)日：1995-02-28

申请号：JP19944293

申请日：1993-08-11

Applicant: TORAY INDUSTRIES

Inventor： OKASAKA HIDESADA ,  SASAKI TOSHIHIRO ,  AOYAMA MASATOSHI

IPC: C08J5/18 ,  C08K3/22 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To produce a polyester film improved in abrasion resistance by melt extruding a polyester compsn. contg. agglomerates formed from primary particles with a specified mean diameter to thereby form a film contg. agglomerates with a mean diameter smaller than that of the agglomerates before the melt extrusion. CONSTITUTION:A polyester compsn., e.g. a polyalkylene terephthalate compsn., contg. agglomerates with a mean diameter of 50-2,000mum and formed from primary particles, such as of ZrO2, with a mean diameter of 1-50mum is melt extruded with e.g. a Dulmage type screw extruder at the m.p. of the polyester or higher but not higher than the m.p. plus 60 deg.C, giving a polyester film contg. 0.05-5wt.% agglomerates with a mean diameter of 30-500mum. The film is stretched longitudinally and transversely and thermaly set to give a biaxially oriented polyester film.

公开(公告)号：JPH06228418A

公开(公告)日：1994-08-16

申请号：JP1564993

申请日：1993-02-02

Applicant: TORAY INDUSTRIES

Inventor： YOSHIDA MINORU ,  SAKAMOTO JUN ,  SASAKI TOSHIHIRO

IPC: B32B27/36 ,  C08J5/18 ,  C08K3/16 ,  C08K5/02 ,  C08K7/16 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To obtain a composition providing a film having a surface hardly injured, showing excellent scratching resistance and wear resistance by blending an aromatic polyester with a fluorine compound and inert particles having specific particle diameters, respectively. CONSTITUTION:The composition comprises (A) 0.01-2 pts.wt. of fluorine compound (preferably calcium fluoride) having 0.002-0.2mum average diameter of primary particles, (B) 0.01-5 pts.wt. of inert particles having 0.2-1mum average diameter of primary particles and (C) 99.98-93 pts.wt. of an aromatic polyester (preferably polyethylene terephthalate). The component B is preferably titanium oxide in the case of inorganic particles and preferably a divinylbenzene homopolymer in the case of organic particles. The component A and the inert inorganic particles are added to the polyester reaction system by a method of supplying them in a state of a glycol slurry and the inert organic particles are incorporated with the polyester in a shape of a slurry using water, etc.

公开(公告)号：JPH05156145A

公开(公告)日：1993-06-22

申请号：JP9392592

申请日：1992-03-02

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  KIMURA MASAHIRO ,  YOSHIDA MINORU

IPC: B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  B29L9/00 ,  B32B27/36 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02 ,  C08L67/03

Abstract: PURPOSE:To provide a polyester compsn. giving a film excellent in slipperiness, surface uniformity, clarity, and abrasion resistance by compounding specific cross-linked polymer particles into an arom. polyester obtd. by the copolymn. of a sulfonated compd. with other necessary comonomers. CONSTITUTION:An arom. polyester having at least one sulfonic acid group or metal sulfonate group is melt mixed on a vented molding machine with a slurry consisting of cross-linked polymer particles, a water-sol. high-molecular compd., and water or an org. compd. having a b.p. of 200 deg.C or lower.

公开(公告)号：JPH0570669A

公开(公告)日：1993-03-23

申请号：JP23515491

申请日：1991-09-13

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  YOSHIDA MINORU ,  SUZUKI MASARU

IPC: C08G63/78 ,  C08J5/16 ,  C08J5/18 ,  C08K3/36 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To provide the subject composition compounded with silica particles and inactive inorganic particles having specific particle sizes, respectively, and capable of being used for the production of films or fibers having lubricity, shaving resistance, winding characteristics, etc. CONSTITUTION:The objective composition compounded with (A) silica particles having a D1/D2 ratio of >=2 between a particle diameter (D1mmu) measured by a dynamic light-scattering method and a particle diameter (D2 mmu) measured by a nitrogen gas adsorption method, having the D1 of 60-600mmu. having a thickness of 41-100mmu on the observation using an electron microscope, and having a linear or branched shape, and (B) inactive inorganic particles such as silicon oxide, kaolin, calcium carbonate or titanium oxide particles having an average particle diameter of 10-500mmu.

公开(公告)号：JPH04180921A

公开(公告)日：1992-06-29

申请号：JP30856090

申请日：1990-11-16

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  YOSHIDA MINORU ,  UEDA TOMOAKI

IPC: C08F2/44 ,  C08G63/78

Abstract: PURPOSE:To produce a polyester which contains colloidal silica of an improved affinity and can give a fiber or film of excellent abrasion resistance by adding colloidal silica surface-treated with acrylic acid to the reaction system during the polycondensation of an aromatic dicarboxylic acid with a glycol. CONSTITUTION:A process for the production of a polyester mainly consisting of a polyester comprising a dicarboxylic acid based on an aromatic dicarboxylic acid or its esterifiable derivative and a glycol, desirably an alkylene terephthalate or an alkylene naphthalate, wherein colloidal silica at least part of whose surface is treated with a silane, titanium or like coupling agent (of a volume shape factor of 0.35-0.52 and a particle diameter of 0.01-5.0mmu) is added to the reaction system before the completion of the polycondensation reaction to obtain an abrasion-resistant polyester. The amount of addition is 0.01-30 pts.wt., particularly desirably 0.1-10 pts.wt. per 100 pts.wt. polyester.

公开(公告)号：JPH047350A

公开(公告)日：1992-01-10

申请号：JP10710790

申请日：1990-04-23

Applicant: TORAY INDUSTRIES

Inventor： SASAKI TOSHIHIRO ,  YOSHIDA MINORU ,  UEDA TOMOAKI

IPC: C08J5/18 ,  C08K9/04 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To obtain a polyester composition which can be molded into a film, a fiber or the like improved in antistatic properties by dispersing inert inorganic particles subjected to a specified surface treatment in a polyester. CONSTITUTION:Inert inorganic particles having a negative xsi-potential value and a mean particle diameter of 10-3000mum and being surface-treated with 0.01-40 pts.wt. (per 100 pts.wt. inert inorganic particles) compound having at least one amino group and at least one sulfonic group and/or metal sulfonate group are dispersed in a polyester mainly consisting of an aromatic acid dicarboxylic acid and a glycol and mainly consisting of repeating units of an aromatic carboxylate to obtain an antistatic polyester composition containing 0.01-5.0 pts.wt. above compound. This polyester composition can exhibit its antistatic effect when molded into a fiber, a film or other molding, and is desirable especially as a magnetic tape film which is repeatedly used in a state of contact friction.

公开(公告)号：JPH03287656A

公开(公告)日：1991-12-18

申请号：JP9001690

申请日：1990-04-04

Applicant: TORAY INDUSTRIES

Inventor： YOSHIDA MINORU ,  SASAKI TOSHIHIRO ,  UEDA TOMOAKI

IPC: C08K3/36 ,  C08J5/18 ,  C08K9/04 ,  C08L67/00 ,  C08L67/02 ,  C09C1/28

Abstract: PURPOSE:To prepare the title compsn. giving an abrasion-resistant film in which a thermoplastic polyester shows an improved affinity with colloidal silica particles and from which the particles hardly fall off by compounding the polyester with specific colloidal silica particles. CONSTITUTION:The title compsn. is prepd. by compounding a thermoplastic polyester with colloidal silica particles of which a part or the whole of the surface is coated with a high-molecular compd. having the main repeating unit comprising vinylpyrrolidone [e.g. poly(vinylpyrrolidone].

公开(公告)号：JPH0376748A

公开(公告)日：1991-04-02

申请号：JP21569689

申请日：1989-08-21

Applicant: TORAY INDUSTRIES

Inventor： KIDA KENJI ,  SASAKI TOSHIHIRO ,  UEDA TOMOAKI

IPC: C08K5/13 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To prepare a modified polyester compsn. excellent in the adhesive properties, transparency, heat resistance, and mechanical properties by compounding a specified amt. of a sterically hindered phenol compd. into a polyester obtd. from a specific acid component and a diol component comprising an alkylene glycol. CONSTITUTION:100 pts.wt. polyester obtd. from an acid component comprising terephthalic acid, an arom. dicarboxylic acid having a metal sulfonate group (e.g. 5-sodiumsulfoisophthalic acid) and a 4-20C aliph. dicarboxylic acid (e.g. adipic acid) and a diol component comprising an alkylene glycol (e.g. ethylene glycol) is compounded with 0.005-3 pts.wt. sterically hindered phenol compd. [e.g. pentaerithritol tetrakis(3,5-di-t-butyl-4-hydroxycinnamate)].

公开(公告)号：JPH0374459A

公开(公告)日：1991-03-29

申请号：JP21098289

申请日：1989-08-16

Applicant: TORAY INDUSTRIES

Inventor： KIDA KENJI ,  SASAKI TOSHIHIRO ,  UEDA TOMOAKI

IPC: C10M107/50 ,  C08G63/68 ,  C08G63/695 ,  C08G77/42 ,  C08G77/445 ,  C08L67/00 ,  C08L67/02 ,  C10N30/06 ,  C10N50/08

Abstract: PURPOSE:To provide a composition capable of simultaneously satisfying the surface characteristics and suitability of molded products such as films or fibers by compounding a polyester with a polyester oligomer having >= two organic polysiloxane chains in a pendant state. CONSTITUTION:(A) 100 pts.wt. of a polyester is mixed and reacted with (B) 0.01-30 pts.wt. preferably 0.05-10 pts.wt. of a polyester oligomer two or more organic polysiloxane chains through ester bonds in a pendant state, e.g. an oligomer of formula I (R1 is H, alkyl or a group of formula II; R2 is alkyl; R3 and R4 are alkyl, phenyl or fluorine-containing alkyl; X is trivalent organic group; x1 is 2-20; y1 is 0-20; n1 is 3-100) preferably before the finish of the polycondensation reaction of the component A to provide a polyester composition.