公开(公告)号：CA1133190A

公开(公告)日：1982-10-05

申请号：CA306822

申请日：1978-07-05

Applicant: BASF AG

Inventor： STREIT WERNER ,  FIKENTSCHER ROLF ,  GANS KARL ,  WELZEL GERHARD ,  GLASER KLAUS ,  SCHAEFER EMIL

IPC: C08G59/00 ,  C08G59/20 ,  C08G59/50 ,  C08G65/00 ,  C08G65/32 ,  C08G65/333 ,  C08G65/338 ,  C08G81/00 ,  C08L23/00 ,  C08L51/00 ,  C08L51/02 ,  C08L63/00 ,  C08L71/02 ,  C08L77/00 ,  C08L101/00 ,  C08G65/26 ,  C08G73/00

Abstract: Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a block copolymer of the formula: where R is , n being from 0.75 to 3, , , or , x is from 50 to 250, y is from 20 to 100, the ratio of x to y is from 6.5 to 1 : 15, with compounds having at least four basic NH groups in a weight ratio of from 0.8 : 1 to 30 : 1. The products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.

公开(公告)号：DE2861157D1

公开(公告)日：1981-12-24

申请号：DE2861157

申请日：1978-07-21

Applicant: BASF AG

Inventor： STREIT WERNER DR ,  FIKENTSCHER ROLF DR ,  GANS KARL ,  WELZEL GERHARD DR ,  GLASER KLAUS ,  SCHAEFER EMIL

IPC: C08G59/00 ,  C08G59/20 ,  C08G59/50 ,  C08G65/00 ,  C08G65/32 ,  C08G65/333 ,  C08G65/338 ,  C08G81/00 ,  C08L23/00 ,  C08L51/00 ,  C08L51/02 ,  C08L63/00 ,  C08L71/02 ,  C08L77/00 ,  C08L101/00

公开(公告)号：DE2733973A1

公开(公告)日：1979-02-15

申请号：DE2733973

申请日：1977-07-28

Applicant: BASF AG

Inventor： STREIT WERNER DIPL CHEM DR ,  FIKENTSCHER ROLF DIPL CHEM DR ,  GANS KARL ,  WELZEL GERHARD DIPL CHEM DR ,  GLASER KLAUS ING GRAD ,  SCHAEFER EMIL

IPC: C08G59/00 ,  C08G59/20 ,  C08G59/50 ,  C08G65/00 ,  C08G65/32 ,  C08G65/333 ,  C08G65/338 ,  C08G81/00 ,  C08L23/00 ,  C08L51/00 ,  C08L51/02 ,  C08L63/00 ,  C08L71/02 ,  C08L77/00 ,  C08L101/00