公开(公告)号：JPH10147724A

公开(公告)日：1998-06-02

申请号：JP30801496

申请日：1996-11-19

Applicant: KAO CORP

Inventor： IGARASHI TADASHI ,  NISHIMURA TORU ,  HOSOKAWA YASUTOKU ,  YODA KOJI

IPC: C08K3/08 ,  C08F32/08 ,  C08K3/22 ,  C08L101/14

Abstract: PROBLEM TO BE SOLVED: To provide a resin compsn. of a high water absorption, in which a high water-absorbing resin is stable and not decomposed or deteriorated even in the presence of water or an aq. soln. contg. a radical-forming compd. such as L-ascorbic acid or a salt thereof or a transition metal ion such as ion or copper ion, and which has high gel strength and liquid permeability after the swelling. SOLUTION: This compsn. comprises: (A) 100 pts.wt. resin of a high water absorption, and (B) 0.01 to 10 pts.wt. fine powder of a hydrous metal oxide aggregate comprising (a) one or two metals selected from the group consisting of titanium and zirconium and (b) one or two metals selected from the group consisting of zinc, aluminum, calcium, magnesium and silicon. The molar ratio of (a) to (b) in (B) is 30/70 to 99/1.

公开(公告)号：JPH08319304A

公开(公告)日：1996-12-03

申请号：JP5272896

申请日：1996-03-11

Applicant: KAO CORP

Inventor： KAMIDATE TAKASHI ,  HOSOKAWA YASUTOKU ,  HANADA YOKO

IPC: C08F2/32 ,  C08F2/44

Abstract: PURPOSE: To obtain a polymer particle by using a specific anionic surfactant as a dispersant for a dispersion system of a hydrophobic organic solvent inert to polymerization and an aqueous solution of a water-soluble polymerizable monomer, useful as a water absorbing resin high in stability and excellent in water absorption properties and liquid permeability. CONSTITUTION: (A) A hydrophobia organic solvent (e.g. n-pentane, n-hexane, benzene, n-butyl alcohol, etc.) inert to polymerization and (B) an aqueous solution of a water-soluble polymerizable monomer [especia11y preferably an olefin- based unsaturated carboxylic acid, its alkali salt, more preferably (meth)acrylic acid, etc.] are used and polymerization is carried out in the presence of (C) an anionic surfactant (R is a straight-chain or branched chain 5-29C alkyl, alkenyl or 2-hydroxyalkyl; M and M are each an alkali metal ion, ammonium ion or H; (n) is 1 or 2). The amount of the component C is 0.01-10 pts. wt., preferably 0.05-1 pt.wt. based on 100 pts.wt. of the component B.

公开(公告)号：JPH06211972A

公开(公告)日：1994-08-02

申请号：JP461293

申请日：1993-01-14

Applicant: KAO CORP

Inventor： SUZUKI FUMITO ,  HOSOKAWA YASUTOKU

IPC: C08G63/183 ,  C08G63/19 ,  C08G63/66 ,  C08G63/672

Abstract: PURPOSE:To provide a copolyester resin for a molding material having transparency, heat resistance, and impact resistance. CONSTITUTION:This copolyester resin is produced by reacting a dicarboxylic acid component mainly comprising terephthalic acid with a glycol component contg. 5-90mol% compd. of the formula (wherein (p) is an interger of 2-4; and (m) and (n) are each an integer of 1-5).

公开(公告)号：JPH0559163A

公开(公告)日：1993-03-09

申请号：JP22145191

申请日：1991-09-02

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  SATO TAKAHIRO ,  AMIYA TSUYOSHI ,  YASUDA YUTAKA

IPC: B29C49/04 ,  B29K67/00 ,  B29L22/00 ,  C08G63/19 ,  C08G63/199

Abstract: PURPOSE:To obtain a polyester resin suitable for extrusion blow molding and retaining transparency, heat resistance, mechanical strength, etc., also after molding. CONSTITUTION:A polyester resin for extrusion blow molding in which a main component of a dicarboxylic acid component constituting a polyester is terephthalic acid and 5-40mol% of a diol component is paraxylylene glycol, and a hollow vessel molded by using the polyester resin.

公开(公告)号：JPH0559162A

公开(公告)日：1993-03-09

申请号：JP22145091

申请日：1991-09-02

Applicant: KAO CORP

Inventor： SUZUKI FUMITO ,  HOSOKAWA YASUTOKU ,  AMIYA TSUYOSHI ,  YASUDA YUTAKA

IPC: C08G63/181 ,  C08G63/672

Abstract: PURPOSE:To obtain the title resin having specific two kinds of recurring units and having excellent transparency and moldability comparable to PET and exhibiting barrier properties to oxygen and steam superior to PET. CONSTITUTION:The objective resin consisting of 0-95mol% unit expressed by formula I ((m) is 2-10) and 5-100mol% unit expressed by formula II. The resin is preferably obtained by copolymerizing a dicarboxylic component consisting of 0-95mol% terephthalic acid (derivative) and 5-100mol% (2-hydroxy-2- oxoethoxy)benzoic acid (derivative) with a dial component consisting of a 2-1-C straight-chain aliphatic acid glycol. As the glycol, e.g. ethylene glycol or trimethylene glycol is used. Furthermore, in the objective resin, the intrinsic viscosity measured at 25 deg.C in a mixed solution of phenol/tetrachloroethane (of 60/40wt. ratio) is preferably >=0.5g/d.

公开(公告)号：JPH04197634A

公开(公告)日：1992-07-17

申请号：JP32830190

申请日：1990-11-28

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  SUZUKI FUMITO ,  AMIYA TSUYOSHI ,  YASUDA YUTAKA

IPC: B65D1/00 ,  B29C49/22 ,  B29K67/00 ,  B29L22/00 ,  B32B27/36 ,  B65D1/02 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To obtain a uniform vessel which possesses transparency and is superior in barrier properties to gas, steam and ultraviolet rays, by a method wherein the title vessel is comprised of at least two layers of thermoplastic polyester of ethylene terephthalate and a thermoplastic polyesterblend layer. CONSTITUTION:A multi-layer plastic vessel is constituted of at least two layers of a thermoplastic polyester layer (layer A) at least 80mol% of which is ethylene terephthalate as a repeating unit and a thermoplastic polyesterblend layer (layer B) consisting essentially of thermoplastic polyester (a) at least 70mol% of which is ethylene isophthalate as a repeating unit and thermoplastic polyester (b) at least 80mol% of which is ethylene naphthalate as a repeating unit. Then to manufacture this multi-layer plastic vessel, a preform comprised of at least two layers A, B is molded by injection molding and the title vessel is obtained by performing orientation blow molding in at least a uniaxial direction within a temperature range of 80-120 deg.C.

公开(公告)号：JPH0411651A

公开(公告)日：1992-01-16

申请号：JP11377190

申请日：1990-04-27

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  TSUDA YUKA ,  AMIYA TSUYOSHI ,  YASUDA YUTAKA

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

Abstract: PURPOSE:To improve gas barrier properties without adversely affecting transparency and mechanical properties by compounding an arom. polyester with a specific compd. CONSTITUTION:An acid component contg. at least 60mol% arom. dicarboxylic acid and at least 50mol% acid selected from the group consisting of terephthalic acid, a naphthalenedicarboxylic acid, and a cyclohexanedicarboxylic acid is copolymerized with a glycol component to give an arom. polyester having an intrinsic viscosity (in phenol/tetrachloroethane in a wt. ratio of 6/4, at 25 deg.C) of 0.5dl/g or higher. 100 pts.wt. said polyester is compounded with 0.1-3 pts.wt. at least one compd. selected from the group consisting of 1-naphthol, 2-naphthol, triphenylcarbinol, hydroquinone, resorcinol, and catechol.

公开(公告)号：JPH09302138A

公开(公告)日：1997-11-25

申请号：JP11469696

申请日：1996-05-09

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  IGARASHI TADASHI ,  KOUTACHI TAKASHI

IPC: A61L15/60 ,  A61F13/53 ,  C08K3/22 ,  C08L101/00 ,  C08L101/14

Abstract: PROBLEM TO BE SOLVED: To obtain a highly water-absorptive resin composition that contains a highly water-absorptive resin and specific titanium dioxide, has excellent water absorptivity, does not decompose/deteriorate even when kept in hydrous condition by absorbing a hydrous liquid, urea, or the like, and is useful for paper diapers, etc. SOLUTION: This highly water-absorptive resin composition comprises (A) 100 pts.wt. of a highly water-absorptive resin, and (B) 0.01-10 pts.wt. of titanium dioxide having crystal form of anatase type, average particle size of 0.1μm or less, preferably 0.03μm or less, and specific surface area of 50m /g or more, preferably 200m /g or more, when determined by Brunauer-Emette-Teller's method. Furthermore it is preferable for this resin composition to maintain water retention of 35g/g or more when swollen with physiological saline water for 30min and then dehydrated by centrifuging.

公开(公告)号：JPH08337726A

公开(公告)日：1996-12-24

申请号：JP14793495

申请日：1995-06-14

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  KAMIDATE TAKASHI ,  HANADA YOKO ,  MINATO MASANORI ,  HANAOKA KOJI

IPC: C08L101/14 ,  C08L101/00

Abstract: PURPOSE: To obtain a highly water absorbing resin, not only excellent in absorption properties of a humor (urine, menstrual blood, perspiration, etc.) but also hardly decomposed and deteriorated even in a state of absorbing the humor and extremely suitable for a thinner type of an absorbent article and provide an absorbent article using the resin. CONSTITUTION: This highly water absorbing resin has the following requirements (1) to (3): (1) >=35g/g water absorption amount measured according to a centrifugal dehydrating method after swelling for 30min in a physiological saline solution; (2)

公开(公告)号：JPH07238154A

公开(公告)日：1995-09-12

申请号：JP3219894

申请日：1994-03-02

Applicant: KAO CORP

Inventor： HOSOKAWA YASUTOKU ,  SUZUKI FUMITO

IPC: B29D22/00 ,  B29K67/00 ,  C08G63/66 ,  C08G63/672

Abstract: PURPOSE:To obtain a polyester copolymer resin used as a molding material and having transparency, heat resistance and impact resistance. CONSTITUTION:This polyester copolymer resin is one wherein the constituent dicarboxylic acid component mainly consists of terephthatlic acid and the constituent glycol component comprises 10-80mol% compound of formula I and 10-80mol% compound of formula II (wherein m and n each is 1-5; and p is 2-4).