公开(公告)号：DE50311809D1

公开(公告)日：2009-09-24

申请号：DE50311809

申请日：2003-06-04

Applicant: BASF SE

Inventor： BAUM PIA ,  MICHL KATHRIN ,  WEINGART FRANZ ,  NIED STEPHAN ,  BRODT GREGOR

IPC: C11D3/37 ,  C08F290/06

Abstract: Sulfonic acid group copolymer composition comprises (a) 30-95 mole% of at least one monoethylenically unsaturated carboxylic acid, (b) 3-35 mole% of at least one sulfonic acid group containing monomers, and (c) 1-35 mole% of nonionic monomer obtained by statistical or block polymerization. Sulfonic acid group copolymer composition comprises: (1) 30-95 mole% of at least one monoethylenically unsaturated carboxylic acid; (2) 3-35 mole% of at least one sulfonic acid group containing monomer of formula (I); and (3) 1-35 mole% of nonionic monomer of formula (II). R = H or Me; R1 = branched 1-4C alkyl; X = chemical bond or -COO-R1; and M = H, alkali metal, or ammonium. R2 = H or Me; R3 = chemical bond or optionally branched 1-6C alkylene; R4 = optionally branched 2-4C alkylene; R5 = optionally branched 1-6C alkyl, 5-8C cycloalkyl, or aryl; n = 3-50. The polymer is obtained by statistical or block polymerization.

公开(公告)号：NO20081329L

公开(公告)日：2008-05-02

申请号：NO20081329

申请日：2008-03-13

Applicant: BASF SE

Inventor： MILITZ HOLGER ,  KINGMA AREND JOUKE ,  WEINGART FRANZ ,  SCHAFFERT STEFAN ,  KRAUSE ANDREAS ,  WEPNER FALKO

IPC: B27K5/00 ,  C08H8/00

Abstract: The invention relates to a method for producing modified lignocellulosic materials. Said method consists of the following steps a) the lignocellulosic material is impregnated with an aqueous composition which contains i) at least one cross-linkable nitrogen compound and ii) at least one substance which catalyses the cross-linking, b) the impregnated lignocellulosic materials are treated at higher temperatures in order to remove the water and to cross-link the cross-linkable nitrogen compound. In step b) the impregnated lignocellulosic material is treated with overheated steam. The invention also relates to lignocellulosic materials which are obtained according to said method.