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    STORAGE-STABLE ENZYME PREPARATIONS, THEIR PRODUCTION AND USE
    681.
    发明申请
    STORAGE-STABLE ENZYME PREPARATIONS, THEIR PRODUCTION AND USE 审中-公开

    公开(公告)号：US20200291334A1

    公开(公告)日：2020-09-17

    申请号：US16768109

    申请日：2018-11-19

    Applicant: BASF SE

    Inventor： Stephan Hueffer ,  Alejandra Garcia Marcos ,  Oliver Spangenberg ,  Matthias Kellermeier ,  Susanne Wolwertz

    IPC: C11D3/386 ,  C12N9/96 ,  C12N9/14 ,  C07C219/06 ,  C11D3/20 ,  C11D11/00

    Abstract: Described herein is a liquid enzyme preparation containingcomponent (a): at least one salt according to general formula (I) (R2)3N+—(CH2)nC(R3)(R4)—(O—X)m—O—C(O)—R1 A−  (I) wherein n is selected from 1 to 12, m is selected from zero to 50, R1 is selected from the group consisting of methyl, ethyl, —CH(OH)—CH(OH)—COOH, CH(OH)—CH3, (E)-CH═CHCOOH, (Z)—CH═CHCOOH, —C6H5, para-HO—C6H4—, o,p-dihydroxyphenyl, and 3,4,5-triydroxyphenyl, R2 are same or different and selected from C1-C10-alkyl, phenyl, R3 and R4 are same or different and selected from hydrogen and C1-C4-alkyl, X is C2-C4-alkylen, and A− is an inorganic or organic counteranion, component (b): at least one enzyme selected from hydrolases (EC 3), and optionally component (c): at least one compound selected from enzyme stabilizers different from component (a), preservatives, and surfactants.

    METHOD FOR THE PRODUCTION OF SUPERABSORBERS
    684.
    发明申请
    METHOD FOR THE PRODUCTION OF SUPERABSORBERS 审中-公开

    公开(公告)号：US20200283588A1

    公开(公告)日：2020-09-10

    申请号：US16649793

    申请日：2018-10-09

    Applicant: BASF SE

    Inventor： Oskar Stephan ,  Gerald Gruenewald ,  Matthias Weismantel ,  Karl Possemiers ,  Monte Alan Peterson ,  Ruediger Funk ,  Sylvia Bertha ,  Tom Catternan

    IPC: C08J5/02

    Abstract: A process for producing superabsorbents, comprising the steps of i) classifying the superabsorbent particles by means of one or more sieves and ii) removing metallic impurities by means of one or more magnetic separators, wherein classification is accomplished using sieves made of a wire mesh, the wires of the wire mesh consist of a steel composed of at least 70% by weight of iron, at least 10% by weight of chromium and less than 2.5% by weight of nickel, and the throughput of superabsorbent particles in the magnetic separator is in the range from 2.0 to 6.5 g/s per cm2 of free cross-sectional area.

    PROCESS FOR PREPARING AN ANTICORROSION COMPONENT FOR AN ANTIFREEZE
    685.
    发明申请
    PROCESS FOR PREPARING AN ANTICORROSION COMPONENT FOR AN ANTIFREEZE 审中-公开

    公开(公告)号：US20200283365A1

    公开(公告)日：2020-09-10

    申请号：US16494970

    申请日：2018-03-06

    Applicant: BASF SE

    Inventor： Nicolas VAUTRAVERS ,  Joaquim Henrique TELES ,  Henning ALTHOEFER ,  Harald DIETL

    IPC: C07C51/235 ,  C09K5/20 ,  C23F11/12

    Abstract: A process for preparing an anticorrosion component for an antifreeze by oxidizing an oxydiol (I) in which x is 0 (zero) or a positive integer from 1 to 10 with molecular oxygen at a temperature of 20 to 100° C. and a partial oxygen pressure of 0.01 to 2 MPa in the presence of water and of a heterogeneous catalyst comprising platinum to form an oxydicarboxylic acid (II) in which y is 0 (zero) or a positive integer from 1 to 10, in which the oxidation is conducted (a) at a molar ratio of 0.002≤n(Pt)/[n(oxydiol (I))+n(oxydicarboxylic acid (II))]≤0.019 where “n(Pt)” Is the molar amount of platinum, “n(oxydiol (I))” is the molar amount of oxydiol (I) and “n(oxydicarboxylic acid (II))” Is the molar amount of oxydicarboxylic acid (II); (b) at a concentration of water of 50% to 95% by weight in the liquid phase; and (c) at a pH of 1 to 7.

    Preparation of isobutene homo- or copolymer derivatives
    689.
    发明授权
    Preparation of isobutene homo- or copolymer derivatives 有权

    公开(公告)号：US10745496B2

    公开(公告)日：2020-08-18

    申请号：US15046987

    申请日：2016-02-18

    Applicant: BASF SE

    Inventor： Hannah Maria Koenig ,  Klaus Muehlbach ,  Helmut Mach ,  Ulrich Eichenauer

    IPC: C08F4/14 ,  C08F8/32 ,  C08F8/46 ,  C08F4/26 ,  C08F8/00 ,  C08F8/30 ,  C08F8/34 ,  C08F10/10 ,  C08F110/10 ,  C08F210/10

    Abstract: A process for preparing isobutene homo- or copolymer derivatives by (i) polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an iron halide-donor complex, an aluminum trihalide-donor complex, or an alkylaluminum halide-donor complex, (ii) reacting a resulting high-reactivity isobutene polymer with a compound which introduces a low molecular weight polar group or a substructure thereof, and (iii) in the case of reaction with a substructure, further reacting to complete the formation of the low molecular weight polar group. The homo- or copolymer derivatives include a radical of a hydrophobic polyisobutene polymer having a number-average molecular weight of 110 to 250 000 and low molecular weight polar groups including amino functions, nitro groups, hydroxyl groups, mercaptan groups, carboxylic acid or carboxylic acid derivative functions, sulfonic acid or sulfonic acid derivative functions, aldehyde functions and/or silyl groups.

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