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    MAGNETIC RECORDING MEDIUM
    3.
    发明专利
    MAGNETIC RECORDING MEDIUM 未知

    公开(公告)号：CA1287836C

    公开(公告)日：1991-08-20

    申请号：CA565958

    申请日：1988-05-05

    Applicant: KAO CORP

    Inventor： OKADA TOMOYUKI ,  KANNEN NAOKI ,  NISHIMORI TADASHI ,  TSUSHIMA RIKIO

    IPC: C07C275/00 ,  C08G18/60 ,  G03G5/087

    Abstract: A magnetic recording meidum which comprises a non-magnetic support and a magnetic layer thereon comprising a binder and powder of a ferromagnetic substance dispersed in the binder, the binder comprising a crosslinked product of a polyurethane having an average molecular weight of 900 to 50,000 and comprising at least one unit of the formula (I): (I) in which R1, R2 and R4 each are an alkylene, R3 is a hydrocarbon group derived from a di-isocyanate compound and R5 is hydrogen or methyl, in one molecular thereof and having -OH, -NCO or -OOC-CR5=CH2 at both terminals of the main chain thereof, provided that the terminals of the main chain are not -NCO when the molecular weight of the polyu.rethane ranges from 900 to 10,000. The polyurehtane resin can be prepared by using as a starting material a polymerizable dihydorxyl compound of the general formula (II): (II) in which R1, R2 and R4 each are an alkylene, R3 is a hydrocarbon group and R5 is -H or -CH3.

    4.
    发明专利
    未知

    公开(公告)号：NO884162D0

    公开(公告)日：1988-09-20

    申请号：NO884162

    申请日：1988-09-20

    Applicant: KAO CORP

    Inventor： YOSHIMATSU AKIRA ,  KONDO AKIHIRO ,  TSUSHIMA RIKIO

    IPC: C08F2/00 ,  C08F2/16 ,  C08F2/18 ,  C08F257/02 ,  C08F291/00 ,  C08F

    Abstract: Uniformly sized, fine particles of a polymer is produced by: (1) mixing (B) a nonionic organic compound being liquid at room temperature, having a solubility in water at 25 DEG C of 0.01 wt.% or larger and being compatible with (A) an oil-soluble, ethylenically unsaturated monomer, with the monomer (A) in an amount of 0.5 to 300 wt.% based on the monomer (A), (2) then adding the mixture of (A) and (B) to an aqueous dispersion of (C) particles of a seed polymer so as to make the mixture of (A) and (B) absorb onto the paricles (C) and (3) polymerizing the mixture of (A), (B) and (C) in the presence of an oil-soluble initiator for the polymerization to obtain said uniformly sized, fine particles.

    8.
    发明专利
    未知

    公开(公告)号：AT14977T

    公开(公告)日：1985-09-15

    申请号：AT81305001

    申请日：1981-10-23

    Applicant: KAO CORP

    Inventor： MATSUNAGA KINJIRO ,  NAITO SACHIO ,  OKUMURA TAKEO ,  TSUSHIMA RIKIO

    IPC: A61K8/00 ,  A61K8/41 ,  A61K8/44 ,  A61K8/65 ,  A61Q5/00 ,  A61Q5/06 ,  A61K7/11

    Abstract: A hair setting composition is described which comprises at least one of decomposition products obtained by oxidation of keratin materials and derivatives at a thiol group of decomposition products obtained by reduction of keratin materials, and at least one of alkanolamines and basic amino acids. The member is dissolved in a polar solvent in an amount of 0.01 to 10 wt% of the composition. The base is contained in a weight ratio to the member of 0.02 to 0.7 : 1.

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