公开(公告)号：CA2692301A1

公开(公告)日：2009-01-08

申请号：CA2692301

申请日：2008-07-04

Applicant: BASF SE

Inventor： SCHROEDER MARC ,  HAEHNLE HANS-JOACHIM ,  ESSER ANTON

IPC: C09C1/02 ,  C09C1/36 ,  C09C1/42 ,  C09C3/10 ,  D21H17/69

Abstract: The invention relates to a method for producing aqueous suspensions of fi ne particulate fillers. According to said method, an aqueous dispersion of a t least one latex and an aqueous suspension of at least one starch are separ ately dosed to an aqueous suspension of at least one fine particulate filler .

公开(公告)号：CA2692297A1

公开(公告)日：2009-01-08

申请号：CA2692297

申请日：2008-07-04

Applicant: BASF SE

Inventor： SCHROEDER MARC ,  HAEHNLE HANS-JOACHIM ,  ESSER ANTON

IPC: C09C1/02 ,  C09C1/36 ,  C09C1/42 ,  C09C3/10 ,  D21H17/69

Abstract: The invention relates to aqueous suspensions of fine particulate fillers that are at least partially coated with a composition of at least one water- soluble amphoteric copolymer and at least one latex.

公开(公告)号：AT391207T

公开(公告)日：2008-04-15

申请号：AT05716030

申请日：2005-03-14

Applicant: BASF SE

Inventor： ESSER ANTON ,  BLUM RAINER ,  KUHN JOACHIM ,  LEDUC MARC ,  HEMEL RALF

IPC: D21H17/34 ,  D21H17/37 ,  D21H17/56 ,  D21H21/02

Abstract: A process for the production of paper, board and cardboard by draining a paper stock containing interfering substances in the presence of polymers which contain vinylamine units and which have an average molar mass Mw of at least 1 million, a high-consistency stock first being prepared, at least one polymer containing vinylamine units and having an average molar mass Mw of at least 1 million and a degree of hydrolysis of from 1 to 20 mol % being metered into the high-consistency stock, the high-consistency stock being diluted to a low-consistency stock by adding water, and the low-consistency stock being drained, the polymers being hydrolyzed homo- or copolymers of N-vinylcarboxamides additives for reducing deposits in the wire part, press section and drying section of paper machines.