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    PREPARATION OF STABLE WATER-IN-OIL EMULSIONS OF HYDROLYZED POLYMERS OF N-VINYLAMIDES AND THEIR USE
    173.
    发明专利
    PREPARATION OF STABLE WATER-IN-OIL EMULSIONS OF HYDROLYZED POLYMERS OF N-VINYLAMIDES AND THEIR USE 未知

    公开(公告)号：CA2004144A1

    公开(公告)日：1990-06-20

    申请号：CA2004144

    申请日：1989-11-29

    Applicant: BASF AG

    Inventor： HARTMANN HEINRICH ,  DENZINGER WALTER ,  KROENER MICHAEL ,  SENDHOFF NORBERT ,  FREUDENBERG ENRIQUE

    IPC: C08F2/32 ,  C08F8/12 ,  C08F26/00 ,  C08F26/02 ,  C09K23/42 ,  D21F1/66 ,  D21H17/34 ,  C08L33/24 ,  D21H17/37

    Abstract: o.z. 0050/40418 Stable water-in-oil emulsions of hydrolyzed polymers of N-vinylamides of the formula (I) where R and R1 are each H or C1-C6-alkyl are prepared by polymerization of a compound of the formula I alone or as a mixture with other monoethylenically unsaturated monomers, in the form of a water-in-oil emulsion, to give a water-in-oil polymer emulsion, and subsequent hydrolysis of the polymer, by a process in which hydrolysis of the polymer in the form of the water-in-oil polymer emulsion is carried out in the presence of an acid or base and of from 1 to 30% by weight, based on the polymer, of an emulsifier which is obtainable by (A) reacting a C10-C22-fatty alcohol with epichlorohydrin in a molar ratio of from 1 : 0.5 to 1 : 1.5 to give a glycidyl ether, (B) reacting the glycidyl ether with (1) a saturated C2 C6-alcohol containing from 2 to 6 OH groups or (2) its monoether with a C10-C22-fatty alcohol, in a molar ratio of glycidyl ether to (1) or (2) of from 1 : 0.5 to 1 : 6, in the presence of an acid or base, and (C) alkoxylating the reaction product from (B) with one or more C2-C4-alkylene oxides in a molar ratio of from 1 : 1 to 1 : 6. The polymer emulsions obtainable in this manner are used as drainage aids, retention aids and flocculants in the making of paper and paper products.

    LIQUID DETERGENT WITH COPOLYMER ADDITIVE
    175.
    发明专利
    LIQUID DETERGENT WITH COPOLYMER ADDITIVE 未知

    公开(公告)号：AU4450589A

    公开(公告)日：1990-05-17

    申请号：AU4450589

    申请日：1989-11-09

    Applicant: BASF AG

    Inventor： PERNER JOHANNES ,  DIESSEL PAUL ,  HARTMANN HEINRICH ,  DENZINGER WALTER ,  OFTRING ALFRED ,  SCHOENLEBEN WILLIBALD

    IPC: C11D3/32 ,  C11D3/37 ,  C08L33/26 ,  C08L33/02 ,  C08L35/00 ,  C08L35/02 ,  C08L33/04 ,  C08L23/02 ,  C08L25/04 ,  C08L25/16 ,  C08L29/10 ,  C08L31/02

    Abstract: The use of copolymers which contain as essential copolymerised units (a) 50 to 99 mol% of units of monoethylenically unsaturated (a) C3- to C8-monocarboxylic acids, monoethylenically unsaturated C4- to C8-dicarboxylic acids, hemiesters of monoethylenically unsaturated C4- to C8-dicarboxylic acids, esters of monoethylenically unsaturated C3- to C8-carboxylic acids, C2- to C30-olefins, styrene, C1- to C3-alkylstyrenes, C1- to C28-alkyl vinyl ethers, vinyl esters of saturated C1- to C8- carboxylic acids or mixtures of units of these monomers and (b) 50 to 1 mol% of units of amides of monoethylenically unsaturated C3- to C8-carboxylic acids with amide groups of the structure … … in which R = C8- to C28- alkyl, … … R , R = H, CH3, C2H5 R = C1- to C28-alkyl, n = 2 to 100 and R = H, R have K values of 8 to 200, or of salts of these copolymers, as additive to liquid detergent compositions in an amount of 0.1 to 20% by weight and aqueous liquid detergent compositions which contain these copolymers.

    PREPARATION OF A BEAD POLYMER
    179.
    发明专利
    PREPARATION OF A BEAD POLYMER 未知

    公开(公告)号：AU591269B2

    公开(公告)日：1989-11-30

    申请号：AU7174087

    申请日：1987-04-16

    Applicant: BASF AG

    Inventor： HEIDE WILFRIED ,  HARTMANN HEINRICH ,  VAMVAKARIS CHRISTOS

    IPC: C08F2/32 ,  C08F20/56 ,  C08F20/06 ,  C08F20/18 ,  C08F20/44

    Abstract: Bead polymers are prepared by reverse suspension polymerization by a process in which an aqueous solution of water-soluble ethylenically unsaturated monomers are polymerized in an aliphatic hydrocarbon using an inorganic suspending agent based on a modified finely divided mineral and, in addition, from 0.1 to 5% by weight, based on the monomers used, of a nonionic surfactant, in the presence of a polymerization initiator, with the formation of a water-in-oil polymer suspension.

    PREPARATION OF POLYMER POWDERS
    180.
    发明专利
    PREPARATION OF POLYMER POWDERS 未知

    公开(公告)号：CA1262995A

    公开(公告)日：1989-11-14

    申请号：CA520638

    申请日：1986-10-16

    Applicant: BASF AG

    Inventor： HARTMANN HEINRICH ,  DENZINGER WALTER

    IPC: C08F2/06 ,  C08F26/00

    Abstract: O.Z. 0050/38062/38063 . Polymer powders are prepared by polymerizing N-vinylcarboxamides, water-soluble esters of ethylenically unsaturated carboxylic acids, N-vinylimi-dazoles or N-vinylimidazolines or by copolymerizing Nvinylformamide with N-vinylpyrrolidone or vinyl acetate in supercritical carbon dioxide under superatmospheric pressure and with thorough mixing in the presence of a free radical initiator, from 100 to 1500 parts by weight of carbon dioxide being used per 100 parts by weight of monomer.

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