Cross-linked polyamide-imine polymer for papermaking
    3.
    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。

    Demulsifying crude oil emulsions
    6.
    发明授权
    Demulsifying crude oil emulsions 失效
    破乳原油乳液

    公开(公告)号:US3907701A

    公开(公告)日:1975-09-23

    申请号:US36714773

    申请日:1973-06-05

    Applicant: BASF AG

    CPC classification number: C10G33/04 C08G73/024

    Abstract: Rapid dehydration of crude oils containing salt water by addition of minor amounts of polyalkylene polyamines having at least fifty recurring ethylene imine or propylene imine units, the said polyalkylene polyamine being completely alkoxylated at the nitrogen atom with from 10 to 300 moles of ethylene oxide and/or propylene oxide. Using these compounds it is possible to effect dehydration, in an economical manner, of crude oils containing up to relatively large percentages of high molecular weight hydrocarbons.

    Abstract translation: 通过加入少量具有至少五十个重复乙烯亚胺或丙烯亚胺单元的聚亚烷基多胺,使含有盐水的原油快速脱水,所述多亚烷基多胺在氮原子下用10-300摩尔环氧乙烷和/ 或环氧丙烷。 使用这些化合物可以以经济的方式实现含有高达相当大百分比的高分子量烃的原油的脱水。

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