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    HUMIDITY ADJUSTING BUILDING MATERIAL
    1.
    发明专利
    HUMIDITY ADJUSTING BUILDING MATERIAL 失效

    公开(公告)号：JPH08144387A

    公开(公告)日：1996-06-04

    申请号：JP28314394

    申请日：1994-11-17

    Applicant: AGENCY IND SCIENCE TECHN ,  INAX CORP

    Inventor： SHIBAZAKI YASUO ,  ODA KIICHI ,  SANO SABURO ,  MAEDA MASAKI ,  MURAGUCHI YUKITO ,  FUKUMIZU HIROSHI ,  KOSAKA MINEO

    IPC: E04B1/64

    Abstract: PURPOSE: To obtain the humidity adjusting building material at a low cost by mixing allophane or imogolite and the setting hardening agent, and forming them for setting, or mixing the allophane or imogolite with the ceramics raw material, and burning it so as to form the building material for forming a space. CONSTITUTION: Allophane or imogolite as a main body of the volcanic ash soil is mixed with the setting hardening agent such as mortar, gypsum, slaked lime, dolomite, and water is added thereto for kneading at need, and after forming, it is hardened by steam curing. Or, allophane or imogolite is singly used, or mixed with the ceramics raw material, and formed, burned so as to form the humidity adjusting building material. In this case, the reinforcing material and the pigment can be added at need. This humidity adjusting building material is applied to wall, floor, ceiling, shelf, and door so as to absorb the moisture, and the generation of dew condensation and mold is prevented. The building material having the excellent' moisture absorbing characteristic can be thereby obtained at a low cost.

    CONTROL OF PLASTICITY OF KNEADED CLAY
    2.
    发明专利
    CONTROL OF PLASTICITY OF KNEADED CLAY 失效

    公开(公告)号：JP2000169237A

    公开(公告)日：2000-06-20

    申请号：JP34913198

    申请日：1998-12-08

    Applicant: AGENCY IND SCIENCE TECHN ,  INAX CORP ,  TOYO DENKA KOGYO CO LTD ,  NIKKO KK ,  YKK CORP

    Inventor： SHIBAZAKI YASUO ,  ODA KIICHI ,  SANO SABURO ,  TOMONO TAKUMI ,  OGURI KENTA ,  KAWAI HIDEJI ,  NOMURA YUJI ,  ONO AKIRA

    IPC: C04B33/13 ,  B28B3/20 ,  B28C1/16 ,  C04B35/622

    Abstract: PROBLEM TO BE SOLVED: To control the plasticity of a kneaded clay so that the extrusion molding can be carried out excellently by adding a buffer material having deformability having a stress showing a specific value when a prescribed deformation is caused to an original shape, as an additive to a kneaded clay comprising nonplastic particles. SOLUTION: A buffer material having deformability with 0.002-0.7 MPa stress when the original shape is deformed by 40%, is added to a kneaded clay, especially preferably to the kneaded clay comprising nonplastic particles such as alumina as an additive for imparting the plasticity to control the plasticity of the kneaded clay. The size of the buffer material is preferably 10-1,000 μm, and the buffer material having high water absorption such as the one having water-absorbing magnification of 5-500 times is preferably used. The proportion of the added buffer material is preferably 0.05-10 wt.% based on the amount (100 wt.%) of the particles of the kneaded clay. The buffer material is thought that when an external force is applied to the kneaded clay, the plasticity is heightened because the buffer material itself is deformed and assists the movement of the particles of the kneaded clay to heighten the fluidity of the clay.

    4.
    发明专利
    未知

    公开(公告)号：DE69208753D1

    公开(公告)日：1996-04-11

    申请号：DE69208753

    申请日：1992-07-08

    Applicant: AGENCY IND SCIENCE TECHN ,  YKK CORP

    Inventor： SHIBASAKI YASUO ,  ODA KIICHI ,  FUKUDA TAKESHI

    IPC: C01F7/02 ,  C01F7/44 ,  C08K7/00 ,  C09C1/40 ,  C09D7/12

    Abstract: The present invention provides a process for producing fine flaky alumina particles suitable as a raw material for ceramics, a pigment for paint and etc., wherein aluminum hydroxide or alumina hydrate having a particle size regulated to the order of submicron is subjected to a hydrothermal treatment in water or an aqueous alkali solution at a temperature of 350 DEG C or above under a pressure of 200 kg/cm or below. The present invention further provides an alumina-based plastic material which is produced by kneading the aforesaid fine flaky particles with an organic water holding material and water. Methylcellulose, polyvinyl alcohol, carboxymethylcellulose, polyethylene glycol, etc. are preferably used as the organic water holding agent. The alumina-based plastic material has a high plasticity, so that there is no need of using a large amount of a binder. Thus a dense molded article having stable properties can be prepared.

    6.
    发明专利
    未知

    公开(公告)号：DE69208753T2

    公开(公告)日：1996-09-26

    申请号：DE69208753

    申请日：1992-07-08

    Applicant: AGENCY IND SCIENCE TECHN ,  YKK CORP

    Inventor： SHIBASAKI YASUO ,  ODA KIICHI ,  FUKUDA TAKESHI

    IPC: C01F7/02 ,  C01F7/44 ,  C08K7/00 ,  C09C1/40 ,  C09D7/12

    Abstract: The present invention provides a process for producing fine flaky alumina particles suitable as a raw material for ceramics, a pigment for paint and etc., wherein aluminum hydroxide or alumina hydrate having a particle size regulated to the order of submicron is subjected to a hydrothermal treatment in water or an aqueous alkali solution at a temperature of 350 DEG C or above under a pressure of 200 kg/cm or below. The present invention further provides an alumina-based plastic material which is produced by kneading the aforesaid fine flaky particles with an organic water holding material and water. Methylcellulose, polyvinyl alcohol, carboxymethylcellulose, polyethylene glycol, etc. are preferably used as the organic water holding agent. The alumina-based plastic material has a high plasticity, so that there is no need of using a large amount of a binder. Thus a dense molded article having stable properties can be prepared.

    PROCESS FOR PRODUCING FINE FLAKY ALUMINA PARTICLES AND ALUMINA-BASED PLASTIC MATERIAL
    7.
    发明专利
    PROCESS FOR PRODUCING FINE FLAKY ALUMINA PARTICLES AND ALUMINA-BASED PLASTIC MATERIAL 未知

    公开(公告)号：CA2073471C

    公开(公告)日：1998-05-19

    申请号：CA2073471

    申请日：1992-07-08

    Applicant: AGENCY IND SCIENCE TECHN ,  YKK CORP

    Inventor： FUKUDA TAKESHI ,  ODA KIICHI ,  SHIBASAKI YASUO

    IPC: C01F7/02 ,  C01F7/44 ,  C08K7/00 ,  C08L101/00 ,  C08L1/08

    Abstract: The present invention provides a process for producing fine flaky alumina particles which are suitable as a raw material for ceramics, a pigment for paint and etc., wherein aluminum hydroxide or alumina hydrate having a particle size regulated to the order of submicron is subjected to a hydrothermal treatment in water or an aqueous alkali solution at a temperature of 350.degree.C or above and under a pressure of 200 kg/cm2 or below. The present invention further provides an alumina-based plastic material which is produced by kneading the aforesaid fine flaky particles with an organic water holding material and water. Methylcellulose, polyvinyl alcohol, carboxymethylcellulose, polyethylene glycol, etc. are preferably used as the organic water holding agent. The alumina-based plastic material has a high plasticity, so that there is no need of using a large amount of a binder. Thus a dense molded article having stable properties can be prepared.

    PROCESS FOR PRODUCING FINE FLAKY ALUMINA PARTICLES AND ALUMINA-BASED PLASTIC MATERIAL
    10.
    发明专利
    PROCESS FOR PRODUCING FINE FLAKY ALUMINA PARTICLES AND ALUMINA-BASED PLASTIC MATERIAL 未知

    公开(公告)号：CA2073471A1

    公开(公告)日：1993-01-10

    申请号：CA2073471

    申请日：1992-07-08

    Applicant: AGENCY IND SCIENCE TECHN ,  YOSHIDA KOGYO KK

    Inventor： SHIBASAKI YASUO ,  ODA KIICHI ,  FUKUDA TAKESHI

    IPC: C01F7/02 ,  C01F7/44 ,  C08K7/00 ,  C08L101/00 ,  C08L1/08

    Abstract: The present invention provides a process for producing fine flaky alumina particles suitable as a raw material for ceramics, a pigment for paint and etc., wherein aluminum hydroxide or alumina hydrate having a particle size regulated to the order of submicron is subjected to a hydrothermal treatment in water or an aqueous alkali solution at a temperature of 350 DEG C or above under a pressure of 200 kg/cm or below. The present invention further provides an alumina-based plastic material which is produced by kneading the aforesaid fine flaky particles with an organic water holding material and water. Methylcellulose, polyvinyl alcohol, carboxymethylcellulose, polyethylene glycol, etc. are preferably used as the organic water holding agent. The alumina-based plastic material has a high plasticity, so that there is no need of using a large amount of a binder. Thus a dense molded article having stable properties can be prepared.

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