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    22.
    发明专利
    未知

    公开(公告)号：DE69117666D1

    公开(公告)日：1996-04-11

    申请号：DE69117666

    申请日：1991-11-14

    Applicant: KAO CORP

    Inventor： YAMASHITA HIROYUKI ,  HATANO KOUICHI ,  KURODA MUTSUMI

    IPC: C01B15/10

    Abstract: A stable sodium percarbonate particle that at least the inside of the particle is penetrated and coated with a borate and a process for preparing the same are disclosed. The sodium percarbonate particle of the invention is preparesd by subjecting a dried sodium percarbonate particle and an aqueous solution of a borate to solid-liquid mixing and then drying the mixture.

    23.
    发明专利
    未知

    公开(公告)号：DE69112970T2

    公开(公告)日：1996-03-21

    申请号：DE69112970

    申请日：1991-09-27

    Applicant: KAO CORP

    Inventor： KURODA MUTSUMI ,  OHTSUKA HIROSHI ,  YAMASHITA HIROYUKI ,  SAKAGUCHI MIKIO ,  KONDO HIROYUKI ,  HATANO KOUICHI ,  SAI FUMIO

    IPC: C11D1/66 ,  C11D1/72 ,  C11D3/12 ,  C11D17/00

    Abstract: To provide a nonionic powdery detergent free from oozing of a liquid nonionic surfactant at ambient temperature and having excellent powder fluidity and non-caking properties and a solubility which is not deteriorated with time. The nonionic powdery detergent composition comprises (a) 12 to 35% by weight of a nonionic surfactant having a melting point of not higher than 40 DEG C and an HLB in the range of 9.0 to 16.0, (b) 10 to 60% by weight of a crystalline aluminosilicate and (c) an oil-absorbing carrier containing at least 30% by weight of silicon (in terms of SiO2) versus the weight of said carrier in an anhydrous state and having an oil-absorbing capacity of at least 80 ml/100 g, said carrier giving a dispersion with a pH of at least 9 or being soluble in a 2% aqueous NaOH solution in an amount of 0.5 g or below. i

    24.
    发明专利
    未知

    公开(公告)号：DE69112970D1

    公开(公告)日：1995-10-19

    申请号：DE69112970

    申请日：1991-09-27

    Applicant: KAO CORP

    Inventor： KURODA MUTSUMI ,  OHTSUKA HIROSHI ,  YAMASHITA HIROYUKI ,  SAKAGUCHI MIKIO ,  KONDO HIROYUKI ,  HATANO KOUICHI ,  SAI FUMIO

    IPC: C11D1/66 ,  C11D1/72 ,  C11D3/12 ,  C11D17/00

    Abstract: To provide a nonionic powdery detergent free from oozing of a liquid nonionic surfactant at ambient temperature and having excellent powder fluidity and non-caking properties and a solubility which is not deteriorated with time. The nonionic powdery detergent composition comprises (a) 12 to 35% by weight of a nonionic surfactant having a melting point of not higher than 40 DEG C and an HLB in the range of 9.0 to 16.0, (b) 10 to 60% by weight of a crystalline aluminosilicate and (c) an oil-absorbing carrier containing at least 30% by weight of silicon (in terms of SiO2) versus the weight of said carrier in an anhydrous state and having an oil-absorbing capacity of at least 80 ml/100 g, said carrier giving a dispersion with a pH of at least 9 or being soluble in a 2% aqueous NaOH solution in an amount of 0.5 g or below. i

    26.
    发明专利
    未知

    公开(公告)号：DE69312987T2

    公开(公告)日：1998-01-15

    申请号：DE69312987

    申请日：1993-03-12

    Applicant: KAO CORP

    Inventor： KURODA MUTSUMI ,  SAKAMOTO YUICHI ,  OTANI YOSHINORI

    IPC: C11D3/08 ,  C11D3/12 ,  C11D11/00 ,  C11D17/06 ,  C11D1/66 ,  C11D11/02

    Abstract: A nonionic powdery detergent composition which is free from bleeding of a nonionic surfactant, does not exhibit any deterioration in its solubility even after the passage of time and has an excellent detergency against a fatty acid soil, which comprises 12 to 50% by weight of (a) a nonionic surfactant having a melting point of 40 DEG C or below, 3 to 60% by weight of (b) a specified crystalline layer silicate, and 5 to 30% by weight of (c) a porous oil-absorbent carrier having an oil absorbability of 80 ml/100 g or more, and a process for producing the nonionic powdery detergent composition.

    30.
    发明专利
    未知

    公开(公告)号：ES2092718T3

    公开(公告)日：1996-12-01

    申请号：ES93106629

    申请日：1993-04-23

    Applicant: KAO CORP ,  NIPPON PEROXIDE CO LTD

    Inventor： KURODA MUTSUMI ,  SUZUKI AKIRA ,  KIKUCHI HIDEO ,  SAITO MASAHIRO ,  YAMAGUCHI NOBUYOSHI

    IPC: C01B15/10 ,  C11D3/39 ,  C11D17/00

    Abstract: A stable sodium percarbonate having excellent stability when incorporated into a bleaching agent composition or a detergent composition, particularly a zeolite-containing detergent composition. The stable sodium percarbonate is produced by a process which comprises a step of treating sodium percarbonate on the surface with at least one coating agent selected from the group (A) consisting of boric acids, borates and alkali metal silicates and at least one coating agent selected from the group (B) consisting of carbonates, hydrogencarbonates and sulfates, and at least one coating agent selected from the group consisting of coating agents belonging to groups (A) and (B) being present in the form of an aqueous coating slurry thereof.

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