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    Aqueous polymer dispersion
    32.
    发明授权
    Aqueous polymer dispersion 有权

    公开(公告)号：US11292861B2

    公开(公告)日：2022-04-05

    申请号：US16321493

    申请日：2017-07-28

    Applicant: BASF SE

    Inventor： Sebastian Enck ,  Peter Nesvadba ,  Christoph Tonhauser ,  Tobias Reinhard Umbach ,  Meik Ranft ,  Helmut Steininger ,  Jens Hartig

    IPC: C08F222/38 ,  C08F222/10 ,  C08F216/12 ,  C08J3/12 ,  C09D133/14 ,  C09J133/14 ,  C09J133/24

    Abstract: The invention relates to aqueous polymer dispersions, comprising a water insoluble polymer P in the form of dispersed polymer particles, which is obtainable by free radical aqueous emulsion polymerization of ethylenically unsaturated monomers M, which comprise a) at least one monomer M1 which exhibits two ethylenically unsaturated moieties which are connected by a linker which comprises a disulfide moiety, and b) at least one monoethylenically unsaturated monomer M2, which has a low water solubility. The invention also relates to processes for preparing such an aqueous polymer dispersion, to solid polymer compositions in powder form, obtainable by drying such polymer dispersions, to the use of such polymer dispersions in a coating material, adhesive or sealant and to a methods of coating a surface of a substrate which comprises applying an aqueous coating composition, which contains such an polymer dispersion.

    Viscosity breaking process for olefin polymers
    36.
    发明授权
    Viscosity breaking process for olefin polymers 有权
    烯烃聚合物的粘度破坏过程

    公开(公告)号：US08618224B2

    公开(公告)日：2013-12-31

    申请号：US13893530

    申请日：2013-05-14

    Applicant: BASF SE

    Inventor： David E. Horst ,  Michael Roth ,  Peter Nesvadba

    IPC: C08C19/22 ,  C08F8/32 ,  C08C19/04 ,  C08F10/00 ,  B29C47/78 ,  B29B7/00

    CPC classification number: C08F8/50 ,  B29C47/00 ,  B29C47/0009 ,  B29K2023/0641 ,  B29K2023/12 ,  C08F110/06 ,  C08F2810/10 ,  C08L23/10 ,  C08L2023/42 ,  C08F2500/12 ,  C08F2500/02 ,  C08F8/06

    Abstract: Disclosed is a method for viscosity breaking of a polypropylene polymer, a polypropylene copolymer or a polypropylene polymer blend, which process comprises adding a chain transfer agent and an initiator to a polypropylene polymer, polypropylene copolymer or polypropylene polymer blend and heating the resultant composition. The chain transfer agent has a Cs value of greater than or equal to about 0.04 as measured in ethylene polymerization at 130° C. The initiator is for example an organic or inorganic peroxide, a carbon based radical generator, a bis azo compound, a stable nitroxyl compound, a sterically hindered NO-acyl compound or a sterically hindered alkoxyamine compound.

    Abstract translation: 公开了一种聚丙烯聚合物，聚丙烯共聚物或聚丙烯聚合物共混物的粘度破坏方法，该方法包括向聚丙烯聚合物，聚丙烯共聚物或聚丙烯聚合物共混物中加入链转移剂和引发剂，并加热所得组合物。 链转移剂在130℃下在乙烯聚合中测得的Cs值大于或等于约0.04。引发剂是例如有机或无机过氧化物，碳基自由基发生剂，双偶氮化合物，稳定的 硝酰基化合物，空间位阻的N-酰基化合物或空间位阻烷氧基胺化​​合物。

    Polymer for treating hair
    39.
    发明授权
    Polymer for treating hair 有权

    公开(公告)号：US11471706B2

    公开(公告)日：2022-10-18

    申请号：US16629333

    申请日：2018-07-13

    Applicant: BASF SE

    Inventor： Christoph Tonhauser ,  Veronique Schwartz ,  Sebastian Enck ,  Peter Nesvadba ,  Petra Keie ,  Antonietta Mauri

    IPC: A61Q5/00 ,  A61Q5/06 ,  A61Q5/12 ,  A61K8/41 ,  A61K8/81 ,  C08F220/58 ,  C08F8/32 ,  C08F226/10

    Abstract: The present invention relates to a polymer comprising repeating units derived from at least one first monomer (monomer A) which is a molecule comprising a thiolactone ring and an ethylenically unsaturated, polymerizable double bond, and at least one second monomer (monomer B) which is N-vinyl pyrrolidone. Furthermore the present invention relates to a modified polymer, the structure of which is identical to the structure of the said polymer apart from the only difference, which is that all or at least some of the thiolactone moieties of the said polymer are modified by opening the thiolactone ring with a substance selected from the group consisting of ammonia, a primary amine, 2-amino-1-ethanol and L-lysine, wherein the N-atom of said substance is binding to the carbonyl group of the opened thiolactone ring. Furthermore, the present invention relates to a process for making the modified polymer and to the use of the polymer or of the modified polymer for treating hair.

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