Cross-linked polyamide-imine polymer for papermaking
    1.
    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

    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。

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