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    METHOD FOR FORMING FINE LIQUID DROPLET
    31.
    发明专利
    METHOD FOR FORMING FINE LIQUID DROPLET 失效

    公开(公告)号：JPH05329351A

    公开(公告)日：1993-12-14

    申请号：JP16343192

    申请日：1992-05-30

    Applicant: KAO CORP

    Inventor： ARIMOTO TAKAHIRO ,  KATADA NAOKI ,  SHIDA JUN ,  HAMADA HIROSHI ,  NAKAO MASAKAZU

    IPC: B01F3/08 ,  B01F5/20 ,  C11D3/14

    Abstract: PURPOSE:To easily and efficiently form a fine liquid droplet with a specific means liquid droplet size by a simple device by emitting a liquid becoming a dispersion phase into a gaseous phase from a straight nozzle at flow velocity such that the Re number at the outlet part of a nozzle becomes a specific value to mix the same with a continuous phase. CONSTITUTION:In a method wherein a fine liquid droplet being a dispersion phase 1 is formed within a continuous phase not substantially dissolved in the dispersion phase 1, the liquid becoming the dispersion phase is emitted into a gaseous phase from a straight nozzle 3 at flow velocity such that the Re number at a nozzle outlet part becomes 200-300,000 to be mixed with the continuous phase 4. Or, the liquid becoming the dispersion phase 1 is emitted from the straight nozzle 3 immersed in the continuous phase 4 at the same flow velocity to be mixed with the continuous phase 4. As a result, a fine liquid droplet with a mean liquid droplet size of 10-300mum can be easily and efficiently obtained by a simple device. Further, liquid droplet size distribution is also sharp and this capacity is not changed after scaling-up.

    PRODUCTION OF FINE POLYMER PARTICLES HAVING UNIFORM PARTICLE DIAMETER
    32.
    发明专利
    PRODUCTION OF FINE POLYMER PARTICLES HAVING UNIFORM PARTICLE DIAMETER 失效

    公开(公告)号：JPH05178913A

    公开(公告)日：1993-07-20

    申请号：JP35871991

    申请日：1991-12-27

    Applicant: KAO CORP

    Inventor： ARIMOTO TAKAHIRO ,  SHIDA JUN

    IPC: C08F2/18 ,  C08F291/00

    Abstract: PURPOSE:To obtain fine polymer particles with a uniform particle diameter in a high yield and to heighten the efficiency of the whole process, by reducing the droplet diameters of an emulsified monomer to values smaller than those attained by the conventional technique to thereby improve the stability of the emulsion and make the monomer more apt to be absorbed into seed polymer particles. CONSTITUTION:The title production process comprises causing an oil-soluble ethylenic monomer (a) and a nonionic organic compound (b) to be absorbed into seed polymer particles (c) dispersed in an aqueous dispersion medium (d) and then polymerizing the monomer in the presence of an oil-soluble polymerization initiator. A device is used in this process to collide a pressurized liquid mixture of the monomer (a), the compound (b), and the medium (d) with itself or with a pressurized liquid mixture of the particles (c) and the medium (d) to thereby disperse the ingredients and emulsify the monomer (a). The resulting ingredients are mixed and the monomer (a) is then polymerized.

    PAPERMAKING SIZE COMPOSITION
    35.
    发明专利
    PAPERMAKING SIZE COMPOSITION 失效

    公开(公告)号：JPH01111094A

    公开(公告)日：1989-04-27

    申请号：JP26585787

    申请日：1987-10-21

    Applicant: KAO CORP

    Inventor： SHIDA JUN ,  KONDO JUNJI ,  ISHIBASHI YOICHI ,  KONDO AKIHIRO ,  URUSHIBATA HIDEAKI

    IPC: C08L33/14 ,  C08F20/34 ,  C08F220/34 ,  C08F220/42 ,  C08F220/60 ,  C08L33/04 ,  C08L33/24 ,  C08L33/26 ,  C08L57/04 ,  D21H17/05 ,  D21H17/37

    Abstract: PURPOSE: To obtain a subject composition having an excellent sizing capability, consisting of a water soluble polymer obtained by copolymerizing each specific long chain alkyl group-containing monomer, cationic vinyl monomer and nonionic monomer in a specific ratio, and ketene dimmer. CONSTITUTION: This composition of a sizing agent having +50 to +150 mV ζpotential is obtained by dispersing ketene dimmer in a water soluble copolymer solution obtained by copolymerizing (A) 3-15 mol% long chain alkyl group- containing monomer having a 4-28C alkyl group and a polymerizable functional group [preferably a compound of formula I (R1 is H or methyl; R2 , R3 are each a 1-3C alkyl; R4 is a 4-28C alkyl; Y is O or NH; Z is a 1-4C alkylene or the like; X is a halogen or the like), etc.], (B) 15-50 mol% cationic vinyl monomer not having a 4-28C alkyl group [preferably a compound of formula II (R2 ', R3 ' are each a 1-3C alkyl; R5 is H, a 1-3C alkyl or the like), etc.], and (C) 35-82 mol% non-ionic monomer not having a 4-28C alkyl group and an ionic group (e.g.; acrylamide).

    AQUEOUS DISPERSION
    37.
    发明专利
    AQUEOUS DISPERSION 失效

    公开(公告)号：JPS62289232A

    公开(公告)日：1987-12-16

    申请号：JP13127486

    申请日：1986-06-06

    Applicant: KAO CORP

    Inventor： URUSHIBATA HIDEAKI ,  YASUDA YUTAKA ,  SHIDA JUN

    IPC: B01J13/00 ,  B01F17/52 ,  C08F20/34 ,  C08F20/52 ,  C08F26/06 ,  C08F212/00 ,  C08F212/14 ,  C08F220/34 ,  C08F220/60 ,  C08F226/06 ,  D21H17/05 ,  D21H17/17 ,  D21H17/35 ,  D21H17/37 ,  D21H17/44

    Abstract: PURPOSE:To enhance the dispersion stability and storage stability of the title dispersion by preparing the aq. dispersion from a water-soluble copolymer consisting of a specified cationic surfactant, a cationic monomer and an aromatic vinyl monomer; and a water-insoluble substance. CONSTITUTION:From 1-15mol% cationic surfactant having a 4-28C hydrocarbonic group and a polymerizable functional group, 50-90mol% copolymerizable cationic monomer, and 1-49mol% copolymerizable aromatic vinyl monomer are allowed to react with each other to obtain a water-soluble copolymer. The water-soluble copolymer and a water-insoluble substance are mixed to prepare an aq. dispersion. An ketene dimer is appropriately used as the water-insoluble substance, and the particle diameter is appropriately controlled to

    PURIFICATION OF IONIC POLYMER
    39.
    发明专利
    PURIFICATION OF IONIC POLYMER 失效

    公开(公告)号：JPH10237124A

    公开(公告)日：1998-09-08

    申请号：JP21205097

    申请日：1997-08-06

    Applicant: KAO CORP

    Inventor： SHIMOKAWA YOSHIFUMI ,  IMAKI TAKUYA ,  SHIDA JUN ,  NOJIRI NAOKI ,  HIRAMATSU SHINOBU

    IPC: C08F6/06 ,  B01D29/00

    Abstract: PROBLEM TO BE SOLVED: To efficiently remove a specific impurity in a short time and purify an ionic polymer, by treating an aqueous solution of the ionic polymer containing the specific impurity with an ultrafiltration membrane and/or a reverse osmosis membrane under specified conditions. SOLUTION: The aqueous solution comprising (A) an ionic polymer having preferably 3.0 equiv./kg quantity of electric changes based on unit weight and 5,000-1,500,000 weight - average molecular weight and (B) a low-molecular impurity electrified with the same sign as that of the component A such as an ionic residual monomer and (C) mixed solvent of (i) >=60wt.% water and, as necessary, (ii) an organic solvent is treated with an ultrafiltration membrane and/or a reverse osmosis membrane having preferably 4-100nm average pore diameter under conditions of 7-20wt.% concentration of the component A and >=0.30g equiv./L quantity of electric charges of the component A in the aqueous solution to remove the component B. Thereby, the ionic polymer is purified.

    PRODUCTION OF HIGHLY WATER-ABSORBING POLYMER
    40.
    发明专利
    PRODUCTION OF HIGHLY WATER-ABSORBING POLYMER 失效

    公开(公告)号：JPH09241392A

    公开(公告)日：1997-09-16

    申请号：JP5187396

    申请日：1996-03-08

    Applicant: KAO CORP

    Inventor： SHIMOKAWA YOSHIFUMI ,  NAKAO MASAKAZU ,  MATSUYAMA KAZUO ,  SHIDA JUN

    IPC: C08J3/24

    Abstract: PROBLEM TO BE SOLVED: To produce a highly water-absorbing polymer safely in good productivity without using any organic solvent. SOLUTION: In a process for producing a highly water-absorbing polymer by mixing a carboxylated polymer with a crosslinking agent having at least two functional groups reactive with the carboxyl group and subjecting the obtained mixture to a crosslinking reaction, the crosslinking is performed by spraying an aqueous solution containing the polymer and the agent into a gas phase.

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