中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.021 seconds)

    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。

    Tanning process
    8.
    发明专利
    Tanning process 未知

    公开(公告)号：GB1090606A

    公开(公告)日：1967-11-08

    申请号：GB2967866

    申请日：1966-07-01

    Applicant: BASF AG

    Inventor： ENDRES HORST ,  LEPPMEIER FRANZ ,  ERDMANN HANS

    IPC: C14C3/08

    Abstract: In a process for the complete tanning of material such as animal hides, pelts, fur skins and furs, and the re-tanning of leather, the material is treated with between 1 and 30% of its weight of a methylol derivative of a mononuclear phenol or a binuclear phenol compound containing, in each nucleus, not more than one phenolic hydroxyl group, and being free from anionic groups and condensed rings, in a weakly acidic to weakly alkaline aqueous solution, e.g. having a pH between 6 and 9. The solution may contain up to 50%, by weight of a water-soluble organic solvent, such as methanol, ethanol and acetone. Suitable derivatives are: mono-, di- or polymethylol derivatives of phenol, cresols, xylenols, thymol, carvacrol, halophenols, phenylphenols, monohydroxy- and dihydroxy-diphenylmethanes, dihyroxy-diphenylpropanes. Particularly suitable derivatives are: monomethylol- and dimethylol-4, 4' dihydroxy-diphenyl sulphone. missing page 170

Patent Agency Ranking