公开(公告)号：GB2346371B

公开(公告)日：2002-04-03

申请号：GB9915886

申请日：1998-09-03

Applicant: KAO CORP

Inventor： NAKAI SHIGEO ,  KATO MASAYUKI ,  SAWA MASUO

IPC: B22C1/22

Abstract: The present invention provides a refractory granular material composition for a self-hardening molding by acid-hardening, consisting essentially of: a refractory granular material, an acid-hardening resin-containing binder composition, an acid-containing hardener composition, and at least one solvent selected from the group consisting of (1) alcohols, (2) ether alcohols and ester shown below:wherein R1 represents a C4 to C8 straight-chain or branched aliphatic hydrocarbon group or a benzyl group; R2 represents a C1 to C10 straight-chain or branched aliphatic hydrocarbon group, phenyl group or a benzyl group; R3 represents an ethylene group or a propylene group; n is an integer of 1 to 12; R4 represents, phenyl group or a methyl group; and R5 is a C2 to C6 aliphatic hydrocarbon group or (R3 -O)n R2.

公开(公告)号：DE69535397D1

公开(公告)日：2007-04-05

申请号：DE69535397

申请日：1995-08-17

Applicant: KAO CORP

Inventor： KIUCHI KAZUHIKO ,  KATO MASAYUKI ,  SAWA MASUO ,  NAKAI SHIGEO

IPC: B22C1/00 ,  B22C1/22

公开(公告)号：GB2346371A

公开(公告)日：2000-08-09

申请号：GB9915886

申请日：1998-09-03

Applicant: KAO CORP

Inventor： NAKAI SHIGEO ,  KATO MASAYUKI ,  SAWA MASUO

IPC: B22C1/22

Abstract: An acid-curable, refractory particulate material composition for forming a mold which can improve the mold strength. The composition comprises a refractory particulate material, a binder composition containing an acid-curable resin, an acid-containing curing agent composition, and at least one solvent selected from among the alcohols (1): R 1 -OH, ether alcohols (2), and esters (3). In said formulas R 1 represents a straight-chain or branched aliphatic haydrocarbon group having 3 to 12 carbon atoms or a benzyl group: R 2 represents a straight-chain or branched aliphatic hydrocarbon group having 1 to 10 carbon atoms or a phenyl or benzyl group: R 3 represents an ethylene or trimethylene group; n is an integer of 1 to 12; R 4 represents a phenyl or methyl group; and R 5 represents an aliphatic hydrocarbon group having 2 to 6 carbon atoms or -(R 3 -O)n -R 2 .

公开(公告)号：DE19882174T1

公开(公告)日：2000-04-13

申请号：DE19882174

申请日：1998-09-03

Applicant: KAO CORP

Inventor： NAKAI SHIGEO ,  KATO MASAYUKI ,  SAWA MASUO

IPC: B22C1/22

Abstract: The present invention provides a refractory granular material composition for a self-hardening molding by acid-hardening, consisting essentially of: a refractory granular material, an acid-hardening resin-containing binder composition, an acid-containing hardener composition, and at least one solvent selected from the group consisting of (1) alcohols, (2) ether alcohols and ester shown below:wherein R1 represents a C4 to C8 straight-chain or branched aliphatic hydrocarbon group or a benzyl group; R2 represents a C1 to C10 straight-chain or branched aliphatic hydrocarbon group, phenyl group or a benzyl group; R3 represents an ethylene group or a propylene group; n is an integer of 1 to 12; R4 represents, phenyl group or a methyl group; and R5 is a C2 to C6 aliphatic hydrocarbon group or (R3 -O)n R2.

公开(公告)号：EP1839774A4

公开(公告)日：2009-04-15

申请号：EP05780249

申请日：2005-08-04

Applicant: KAO CORP

Inventor： SAWA MASUO

IPC: B22C1/22

CPC classification number: B22C1/224

Abstract: Disclosed is a furan resin composition for producing molds which has a urea content of 1-10% by weight and a pH (at 25˚C) of 7-10.

公开(公告)号：EP0778095A4

公开(公告)日：1998-03-11

申请号：EP95928611

申请日：1995-08-17

Applicant: KAO CORP

Inventor： KIUCHI KAZUHIKO ,  KATO MASAYUKI ,  SAWA MASUO ,  NAKAI SHIGEO

IPC: B22C1/22 ,  B22C1/00

CPC classification number: B22C1/224

Abstract: A binder composition for use in producing molds, which contains a binder obtained by the polycondensation of monomers mainly comprising furfuryl alcohol, urea and an aldehyde and wherein a difference (A-B) between the weight percentage (A) of the feed furfuryl alcohol and the weight percentage (B) of the unreacted furfuryl alcohol, both based on the binder, ranges from 5.0 to 60.0. The composition serves to accelerate the hardening of the binder without worsening the working environment.

公开(公告)号：DE19882174B3

公开(公告)日：2016-02-11

申请号：DE19882174

申请日：1998-09-03

Applicant: KAO CORP

Inventor： NAKAI SHIGEO ,  KATO MASAYUKI ,  SAWA MASUO

IPC: B22C1/22

Abstract: Feuerfeste, körnige Materialzusammensetzung zum selbsthärtenden Formen durch Säurehärten, umfassend ein feuerfestes, körniges Material, ein Bindemittel, das ein säurehärtendes Harz ausgewählt aus Furanharz und Phenol-modifiziertem Furanharz enthält, ein säurehaltiges Härtungsmittel und 0,01 bis 0,15 Gew.-%, bezogen auf die Zusammensetzung, von zumindest einem Lösungsmittel, ausgewählt aus der Gruppe, bestehend aus (1) Alkoholen, (2) Etheralkoholen und (3) Estern, die nachfolgend gezeigt sind: R1-OH(1)worin: R1 eine geradkettige oder verzweigte, aliphatische C4-8-Kohlenwasserstoff-Gruppe oder eine Benzyl-Gruppe ist; R2 eine geradkettige oder verzweigte, aliphatische C1-10-Kohlenwasserstoff-Gruppe, eine Phenyl-Gruppe oder eine Benzyl-Gruppe ist; R3 eine Ethylen-Gruppe oder eine Propylen-Gruppe ist; n eine ganze Zahl von 1 bis 12 ist; R4 eine Phenyl-Gruppe oder eine Methyl-Gruppe ist; und R5 eine aliphatische C2-6-Kohlenwasserstoff-Gruppe oderist.

公开(公告)号：DE69535397T2

公开(公告)日：2007-10-31

申请号：DE69535397

申请日：1995-08-17

Applicant: KAO CORP

Inventor： KIUCHI KAZUHIKO ,  KATO MASAYUKI ,  SAWA MASUO ,  NAKAI SHIGEO

IPC: B22C1/00 ,  B22C1/22

公开(公告)号：JPH066217B2

公开(公告)日：1994-01-26

申请号：JP16726585

申请日：1985-07-29

Applicant: KAO CORP

Inventor： TAKAHASHI SHUNSUI ,  SAWA MASUO ,  KIUCHI KAZUHIKO ,  MYAHASHI YOJI

IPC: B22C1/22 ,  C08G8/04 ,  C08L61/00 ,  C08L61/04 ,  C08L61/06

公开(公告)号：JPS6431539A

公开(公告)日：1989-02-01

申请号：JP18474087

申请日：1987-07-24

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KIUCHI KAZUHIKO ,  SAWA MASUO

IPC: B22C1/10

Abstract: PURPOSE:To improve initial strength of a mold by containing the specific resin in the setting agent composing of salt of strong acid and weak basic and polar solvent. CONSTITUTION:A composition setting mixing material of refractory granular aggregate and acid setting resin is constituted by the salt of the strong acid and the weak basic, the polar solvent and soluble natural or synthetic resin in the polar solvent. It is desirable that resin having about 300-50000 of weight average molecular weight and polyvinyl alcohol, etc., is contained at about 3-50wt.% as the natural and synthetic resin. Water, methanol, etc., are used to about 5-60% ratio as the polar solvent. It is desirable that hydrochloric acid, organic sulfonic acid, etc., and material of Cu, Fe, Al, Zn as main component (for example, ferric chloride) are used at 10-60% as the salt of the strong acid and weak basic.