公开(公告)号：JPH11189636A

公开(公告)日：1999-07-13

申请号：JP36107797

申请日：1997-12-26

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  MORII MASAYOSHI

IPC: C08G18/20 ,  C08G18/38 ,  C08G18/50 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a rigid polyurethane foam which can exhibit excellent foam properties such as mechanical properties and dimensional stability without heightening the density of the foam though water is used as the blowing agent. SOLUTION: There is provided a process for producing a rigid polyurethane foam by mixing under agitation a polyol mixture containing a polyol, a foam stabilizer, at least 2.5 pts.wt., per 100 pts.wt. polyol, blowing agent being water, and a catalyst, wherein the polyol mixture further contains a polyoxyethylenealkylamine represented by the formula (wherein R is a 1-18C alkyl or an alkenyl, and (m) and (n) are each the average number of moles of the units, provided that m+n=1-100).

公开(公告)号：JPH09302065A

公开(公告)日：1997-11-25

申请号：JP7445297

申请日：1997-03-10

Applicant: KAO CORP

Inventor： HARADA SHOICHIRO ,  SAKAI MITSURU ,  TAKEMURA KAZUNARI ,  ITOI AKITO ,  OKUBO MAKOTO

IPC: C08G18/10 ,  C08G18/42 ,  C08G63/16 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To produce a polyurethane foam having a low density, good appearance and handling, and excellent mechanical strengths such as tensile strength and tear strength. SOLUTION: In a process for producing a polyurethane foam by reacting a polyesterpolyol prepared by polycondensing an acid component containing terephthalic acid and adipic acid in a molar terepnthalic acid to adipic acid ratio of 0.005-0.3 with a polyhydric alcohol with a polyisocyanate component and a polyol component, the polyol component contains the polyesterpolyol. In a process for producing a polyurethane foam reacting an isocyanate prepolymer comprising a polyisocyanate component and a polyol component, the polyol component used to prepare the isocyanate prepolymer contains the polyesterpolyol.

公开(公告)号：JPH06179042A

公开(公告)日：1994-06-28

申请号：JP35426592

申请日：1992-12-14

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KAGITANI MASAHIKO

IPC: B22C1/02 ,  B22C1/16 ,  B22C1/22

Abstract: PURPOSE:To provide the binder compsn. for production of a casting mold having an excellent collapsing property. CONSTITUTION:The binder compsn. contains a binder consisting of a furan resin and a decay accelerator, such as butyl acetate, ethyl acetate, butyl stearate, butyl benzoate, dibutyl sebacate, dibutyl maleate, dimethyl succinate, dimethyl adipate, dimethyl azelate or dimethyl dodecanate. The binder compsn. preferably contains the binder which can be cured by a hardener consisting of the salt of a strong acid and weak base and the decay accelerator in the case of production of the thermal curing casting mold. The casting mold is obtd. by kneading the binder compsn. and the various hardeners with refractory granular aggregate and curing the binder by a desired method.

公开(公告)号：JPH06179040A

公开(公告)日：1994-06-28

申请号：JP35426892

申请日：1992-12-14

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KAGITANI MASAHIKO

IPC: B22C1/02 ,  B22C1/22 ,  C07C69/02 ,  C07C69/34 ,  C07C69/76 ,  C08L61/04 ,  C08L61/06

Abstract: PURPOSE:To improve the collapsing property of a casting mold obtd. by a shell mold method. CONSTITUTION:This resin coated sand is formed by coating the surfaces of refractory granular aggregate with a binder compsn. The binder compsn. contains the phenolic resin and the decay accelerator which is expressed by general formula R1COOR2 [where R1 denotes 1 to 20C alkyl group, 2 to 20C alkenyl group, 6 to 20C aryl group or 7 to 20C alalkyl group; R2 denotes 1 to 4C alkyl group] or general formula R1(COOR1) [where R2 denotes 1 to 4C alkyl group; R3 denotes 1 to 20C alkylene group, 2 to 20C alkenylene group, 6 to 20C phenylene group or 7 to 20C alkylene group]. The casting mold by the shell mold method is obtd. if the resin coated sand is packed into a pattern and is cured by heating.

公开(公告)号：JPH04371346A

公开(公告)日：1992-12-24

申请号：JP14450491

申请日：1991-06-17

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KIUCHI KAZUHIKO ,  NAKAI SHIGEO

IPC: B22C1/22

Abstract: PURPOSE:To improve a collapsing property of the sand core and to eliminate the need for the execution of a heat treatment in a knock-out stage as well as to decrease the number of stages by using the above binder compsn. at the time of producing the sand core to be applied to an undercut part in die casting for casting a light alloy under a high pressure. CONSTITUTION:This binder compsn. for the sand core for high-pressure casting is the binder compsn. used at the time of producing the sand core to be applied to the undercut part in die casting for casting the light alloy under several 10 to several 100kg/cm pressure by blowing gaseous or aerosol sulfur dioxide into a sand mold formed by adding and mixing the binder compsn. and peroxide compsn. to and with refractory aggregate and molding the mixture. The above- mentioned binder compsn. consists of at least one kind selected from specific groups or at least one kind of the copolymers thereof and at least one kind among a furan resin, phenol resin, urea resin, and melamine resin.

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.