公开(公告)号：JP2003261638A

公开(公告)日：2003-09-19

申请号：JP2002063741

申请日：2002-03-08

Applicant: KAO CORP

Inventor： ISHIKAWA ATSUSHI ,  SAKAI MITSURU ,  MORI ATSUTO ,  FUJIOKA HIDEAKI

IPC: C08G18/16

Abstract: PROBLEM TO BE SOLVED: To provide a diluent for catalysts for polyurethane preparation which exerts an excellent compatibility with the catalysts for polyurethane preparation such as organometallic catalysts, in a wide range of concentrations and yields a diluted solution of the catalyst for polyurethane preparation which is stable over a long period of time. SOLUTION: The diluent for catalysts for polyurethane preparation comprises (A) a lower alcohol and/or a glycol ether and (B) a nonionic compound and/or a plasticizer. The diluent is used in a process for preparing a polyurethane foam. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003088575A

公开(公告)日：2003-03-25

申请号：JP2001284643

申请日：2001-09-19

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  ISHIKAWA ATSUSHI ,  MORII MASAYOSHI ,  KUWABARA KAZUO

IPC: A61L9/01 ,  C08J9/42 ,  C08L101/02

Abstract: PROBLEM TO BE SOLVED: To provide a deodorant polyurethane foam excellent in deodorant effect and durability thereof. SOLUTION: This deodorant polyurethane foam comprises a deodorant component containing a polymer compound A having amino group and a polymer compound B having acid radical and/or a group in which the acid radical is a salt. A preparation method of this deodorant polyurethane foam comprises bringing particles of the deodorant component containing the polymer compound A and the polymer compound B into contact with polyurethane foam, or bringing the dispersion of particles of the deodorant component into contact with polyurethane foam. Another preparation method of this deodorant polyurethane foam comprises mixing the polymer compound A with a polymeric monomer C, bringing the resulting mixture into contact with polyurethane foam, and then polymerizing the polymeric monomer C.

公开(公告)号：JP2001213928A

公开(公告)日：2001-08-07

申请号：JP2000022923

申请日：2000-01-31

Applicant: KAO CORP

Inventor： ISHIKAWA ATSUSHI ,  SAKAI MITSURU ,  MORII MASAYOSHI

IPC: C08G18/18

Abstract: PROBLEM TO BE SOLVED: To provide a catalyst composition for manufacturing a polyurethane having a low viscosity, easy to handle, uniform and transparent, which can decrease the number of or necessitate new installation of storage tanks for a catalyst for manufacturing a polyurethane at a site of polyurethane foaming, lessen chances of workers to be exposed to catalysts for manufacturing a polyurethane forced by handling of plural catalysts, and reduce troubles such as compounding errors or the like. SOLUTION: The catalyst composition for manufacturing a polyurethane comprises a tertiary amine compound, a quaternary ammonium salt and a compound represented by the formula: HO-R-OH, wherein R is -CHR1 CHR2-(OCHR1CHR2)n-, wherein R1 and R2 are each independently a hydrogen atom or a methyl group; and n is an integer of 0-2 or -XNR3Y-, wherein R3 is a 1-18C linear or branched alkyl or alkenyl group; and X and Y are each independently -CH2CH2-, -CH(CH3) CH2- or -CH2CH(CH3)-.

公开(公告)号：JP2001172350A

公开(公告)日：2001-06-26

申请号：JP35981899

申请日：1999-12-17

Applicant: KAO CORP

Inventor： ISHIKAWA ATSUSHI ,  SAKAI MITSURU ,  MORII MASAYOSHI

IPC: C08G18/18 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To produce a catalyst for producing a polyurethane of a low odor, and to provide a process for producing a polyurethane excellent in vinyl stain resistance, fogging resistance and heat resistance by using the catalyst for producing the polyurethane. SOLUTION: There are provided a catalyst for producing a polyurethane comprising a dialkylaminoalkyl alcohol represented by formula (I): R1R2N-X-OH (I) (wherein R1 and R2 are each independently a 1-4C alkyl group; and X is a 4-8C branched alkylene group), and a process for producing a polyurethane comprising reacting a polyol component with an isocyanate component in the presence of the catalyst for producing a polyurethane.

公开(公告)号：JP2000159853A

公开(公告)日：2000-06-13

申请号：JP33988198

申请日：1998-11-30

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  ISHIKAWA ATSUSHI ,  MORII MASAYOSHI

IPC: C08G18/16 ,  C08G18/32 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To quickly produce a polyurethane foam at low temperatures by reacting a polyol component with an isocyanate component in the presence of a catalyst containing a compound having a tert-amino group and an NCO- reactive OH group and a compound having prim-amino groups, a blowing agent, and a foam stabilizer. SOLUTION: Preferably, the compound having a tert-amino group and an NCO-reactive OH group is 6-dimethylamino-1-hexanol. Preferably, the compound having prim-amino groups is a compound of the formula: H2N-(CH2)n-A-(CH2)n- NH2 and/or a compound selected from among 1,3-diaminopropane, hexamethylenediamine, etc. In the formula, A is a single bond -NR1-, -NR2-(CH2)x-B-(CH2)y-NR3-, -O(CH2CH2O)k-, or an N,N'-disubstituted piperazine ring; B is a single bond or -NR4-; R1 to R4 are each H or 1-4C alkyl; x and y are each 1-6; k is 0-30; and m and n are each x.

公开(公告)号：JPH06215366A

公开(公告)日：1994-08-05

申请号：JP738393

申请日：1993-01-20

Applicant: KAO CORP

Inventor： YAMAUCHI MICHIHIDE ,  ISHIKAWA ATSUSHI ,  ISOBE TSUTOMU ,  AOKI YOSHIO ,  MAKI KAZUO

IPC: G11B5/82 ,  G11B5/73 ,  G11B5/733

Abstract: PURPOSE:To obtain a disk substrate excellent in corrosion, weather and shock resistance by using a glassy carbon composite material with fine selective ruggedness formed on the surface. CONSTITUTION:A glassy carbon composite material with fine selective ruggedness formed on the surface is used. The roughness of the ruggedness is regulated to about 10-100Angstrom . The composite material has such high strength that cracking and chipping are hardly occurred when it is subjected to working of inner and outer circumferences and chamfering at the time of working a substrate and the objective disk substrate having high rigidity and satisfactory surface smoothness is obtd. This substrate is nonmagnetic and has satisfactory corrosion and weather resistance and high shock resistance.

公开(公告)号：JPH0624844A

公开(公告)日：1994-02-01

申请号：JP18195492

申请日：1992-07-09

Applicant: KAO CORP

Inventor： ISHIKAWA ATSUSHI ,  SATO HIRONOBU

IPC: C04B35/52 ,  C04B35/56 ,  C04B35/565 ,  C23C14/34 ,  G11B5/72 ,  G11B5/84

Abstract: PURPOSE:To obtain a magnetic recording medium excellent in durability by forming a protective film of a magnetic layer with the thin film forming material obtained by incorporating vitreous carbon as the main component and fine particles of silicon carbide and boron carbide as a composite component. CONSTITUTION:The thin film forming material consists of the composite material incorporating vitreous carbon, silicon carbide >= about 1mum average particle diameter, and boron carbide = about 1000 deg.C in the inert atmosphere.

公开(公告)号：JPH0474688A

公开(公告)日：1992-03-10

申请号：JP18709190

申请日：1990-07-17

Applicant: KAO CORP

Inventor： ISHIKAWA ATSUSHI ,  KAMIYAMA KENICHI

IPC: G11B7/24 ,  B41M5/26 ,  G11B7/254 ,  G11B7/257

Abstract: PURPOSE:To obtain an optical recording medium to which dirt and dust hardly apply and to prevent the occurrence of an error in writing or reading by a method wherein in the optical recording medium on which information can be written or read by a laser light, a layer containing a light transmitting particle having conductive properties is provided on the laser light incident surface of the optical recording medium. CONSTITUTION:As conductive light-transmitting fine particle, indium oxide can be exemplified. By adding, mixing, and stirring the conductive light- transmitting fine particle in an inactive organic solvent, such as a silane coupling agent, the silane coupling agent is adsorbed on the surface of the conductive light-transmitting fine particle, and the surface treatment is completed. The particle surface-treated with the silane coupling agent is uniformly mixed with a multifunctional-base acrylic material. This is applied on an optical disk substrate 2 and cured by an ultraviolet radiation or an electron beam. This organic protective film 5 is provided on the laser light incident surface of the optical disk.

公开(公告)号：JPH0340263A

公开(公告)日：1991-02-21

申请号：JP17535189

申请日：1989-07-05

Applicant: KAO CORP

Inventor： ISOBE TSUTOMU ,  ISHIKAWA ATSUSHI ,  YAMAUCHI MICHIHIDE

IPC: G11B17/32

Abstract: PURPOSE:To prevent a flexible magnetic disk from colliding with slide contact parts by forming an X-shaped projecting part to include a core part near a crossing point on the slide contact face of the slide contact parts. CONSTITUTION:On the slide contact face of the slide contact parts integrated with a magnetic head, the X-shaped projecting part (composed of a crossing point 3B, leg part 3C in an upstream direction and leg part 3D in a downstream direction) exists while including a core part 3A of the magnetic head near the crossing point and groove parts 3E-3G exist between these projecting parts. Accordingly, when a flexible magnetic disk 1 is rotated at high speed, the phenomenon of positive and negative pressure in an air current, which is generated respectively in the projecting parts 3B, 3C and 3D and groove part 3E between the abutted faces of a magnetic head 3, can be utilized in a well-balanced condition. Thus, the flexible magnetic disk is stably traveled and a satisfactory recording and reproducing characteristic can be acquired. Then, respective slide and contact faces are prevented from being damaged and durability can be improved.

公开(公告)号：JPH0340262A

公开(公告)日：1991-02-21

申请号：JP17535089

申请日：1989-07-05

Applicant: KAO CORP

Inventor： ISOBE TSUTOMU ,  ISHIKAWA ATSUSHI ,  YAMAUCHI MICHIHIDE

IPC: G11B17/32

Abstract: PURPOSE:To control an air current to be generated between abutted faces and to prevent collision by respectively forming a second projecting part on the upstream side of a first projecting part and a V-shaped third projecting part to be continued to the first projecting part. CONSTITUTION:For slide and contact parts, a first projecting part 3B is formed with a core part 3A positioning in an almost central part, a second projecting part 3C is formed to be positioned in an upstream direction to the rotating direction of a disk to this first projecting part and to be extended in the radial direction of the disk and a V-shaped third projecting part 3D is formed to be continued to the first projecting part and to gradually extend width toward the rotating direction on the downstream side of the rotating direction. Such the slide and contact parts are integrated with a magnetic head 3 on the abutted face of the magnetic head 3 to a flexible magnetic disk 1. Accordingly, since the first projecting part 3B and the third projecting part 3D are continued, the phenomenon of positive and negative pressure in the air current to be generated in the projecting parts and a groove part 3E between the abotted faces of the magnetic head 3 can be utilized in a well-balanced condition when the flexible magnetic disk 1 is rotated at high speed. Thus, the flexible magnetic disk is stably traveled, respective slide and contact faces are prevented from being damaged and durability can be improved.