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    Cross-linked polyamide-imine polymer for papermaking
    2.
    发明授权
    Cross-linked polyamide-imine polymer for papermaking 失效
    用于造纸的交联聚酰胺 - 内酰胺聚合物

    公开(公告)号：US3642572A

    公开(公告)日：1972-02-15

    申请号：US3642572D

    申请日：1969-03-06

    Applicant: BASF AG

    Inventor： ENDRES HORST ,  FIKENTSCHER ROLF ,  MAURER WALTER ,  SCHARF EMIL ,  SOENKSEN UWE

    IPC: C08G69/48 ,  D21H17/55 ,  D21H21/10 ,  D21H3/36

    CPC classification number: C08G69/48 ,  D21H17/55 ,  D21H21/10

    Abstract: Cross-linked reaction products obtained by (a) reacting 1 mole of a dicarboxylic acid such as adipic acid with 0.8 to 1.5 moles of a polyalkylene-polyamine such as diethylenetriamine and/or up to 0.4 mole of an omega -aminocarboxylic acid such as W-aminocaproic acid or a lactam thereof, (b) reacting the reaction product of step (a) with 1 to 30 moles of a 1,2-alkylenimine compound such as ethyleneimine per mole of basic nitrogen in the reaction product of step (a) in the presence of a small amount of acid or alkylating agent such as sulfuric acid as catalyst and (c) cross-linking the reaction product of step (b) with 1 to 20 parts of a bifunctional compound such as epichlorohydrin per 100 parts of reaction product. Twenty-five percent solutions of the new products have a viscosity of from 300 to 4,000 centipoises at 25* C.

    Abstract translation: 通过（a）使1摩尔二羧酸如己二酸与0.8至1.5摩尔多亚烷基多胺如二亚乙基三胺和/或至多0.4摩尔的ω-氨基羧酸如W（如W）反应获得的交联反应产物 - 氨基己酸或其内酰胺，（b）在步骤（a）的反应产物中使步骤（a）的反应产物与1-30摩尔1,2-亚烷基亚胺化合物如乙烯亚胺/摩尔碱性氮反应， a）在少量的酸或烷基化剂如硫酸作为催化剂的存在下，和（c）将步骤（b）的反应产物与1至20份双官能化合物如表氯醇/ 100份交联 的反应产物。 25％的新产品溶液在25℃下的粘度为300至4,000厘泊。

    BRIGHTENING COLORED (ALPHA)-AMINOCARBOXYLIC ACIDS AND DERIVATIVES THEREOF
    5.
    发明专利
    BRIGHTENING COLORED (ALPHA)-AMINOCARBOXYLIC ACIDS AND DERIVATIVES THEREOF 未知

    公开(公告)号：CA966802A

    公开(公告)日：1975-04-29

    申请号：CA134473

    申请日：1972-02-10

    Applicant: BASF AG

    Inventor： DAUT HELMUT ,  SOENKSEN UWE ,  WIERSDORFF WALTER-WIELANT

    IPC: B01J19/12

    Abstract: 1369918 Brightening α-aminocarboxylic acids or salts BADISCHE ANILIN- & SODAFABRIK AG 10 Feb 1972 [11 Feb 1971] 6199/72 Heading C2C α-Aminocarboxylic acids or salts containing a unit of formula in which R 1 is hydrogen or substituted or unsubstituted o-hydroxyphenyl, R 2 is hydrogen, -CH 2 CH 2 OH or -CH 2 COOX, and X is H, Na or K, are brightened by irradiating a discoloured solution or suspension of the compound by radiation of wavelength below 7000 Š until significant bleaching has occurred. Examples treat solutions of NTA sodium salt, EDTA tetrasodium salt, and sodium diethylenetriamine penta-acetate; other suitable compounds are specified.

    Water-Soluble Derivatives of Polyalkylenimines and their production
    6.
    发明专利
    Water-Soluble Derivatives of Polyalkylenimines and their production 未知

    公开(公告)号：GB1156516A

    公开(公告)日：1969-06-25

    申请号：GB3906266

    申请日：1966-09-01

    Applicant: BASF AG

    Inventor： BAUER ERNST ,  ARNOLD JOHANNES ,  SOENKSEN UWE ,  SANNE WALTER

    IPC: C08G73/02 ,  C08G73/04 ,  D21H17/56

    Abstract: 1,156,516. Water-soluble polyalkylenimine derivatives. BADISCHE ANILIN- & SODAFABRIK A.G. 1 Sept., 1966 [2 Sept., 1965], No. 39062/66. Heading C3R. [Also in Division D2] Water-soluble polyalkylenimine derivatives are prepared by reaction of polyalkylenimines with bifunctional alkylating agents wherein a polyalkylenimine which in the form of a 1% by weight aqueous solution has a viscosity of 1À03 to 1À6 centistokes at 25‹ C. is reacted with 0À5 to 25% by weight of epichlorohydrin (or the equivalent molar amount of another bifunctional alkylating agent having 2 to 4 carbon atoms in the molecule) at from 20‹ to 150‹ C. to such an extent that the reaction product, in the form of a 1% by weight aqueous solution, has a viscosity of 1À6 to 20 centistokes at 25‹ C. Examples of suitable bifunctional alkylating agents are epichlorohydrin, ethylene chloride, 1,3-dichloropropane, 1,4-dichlorobutane, dichlorohydrin and 1,2-3,4-diepoxybutane. Polyethylenimine is particularly suitable as the polyalkylenimine; other suitable examples being copolymers of 40 to 80% by weight of ethylenimine and 20 to 60% by weight of 1,2-propylenimine. The resulting polyalkylenimine derivatives are useful as assistants in the paper industry.

    Production of aminoalkanol sulfuric acids
    8.
    发明专利
    Production of aminoalkanol sulfuric acids 未知

    公开(公告)号：GB1111854A

    公开(公告)日：1968-05-01

    申请号：GB3765665

    申请日：1965-09-03

    Applicant: BASF AG

    Inventor： KINDLER HUBERT ,  SOENKSEN UWE ,  WITTWER ARNOLD

    IPC: C07C305/00 ,  C07C305/04 ,  C07C305/06

    Abstract: Aminoalkanol sulphuric acids, i.e. sulphuric acid monoesters of aminoalkanols are prepared by allowing an aminoalkanol and sulphuric acid to flow into a vigorously stirred suspension agent which agent is immiscible with water and is kept boiling at 70 DEG to 150 DEG C., the water formed in the reaction and any water supplied with the reactants being distilled off together with part of the suspension agent, the reaction being effected at atmospheric or subatmospheric pressure.

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