公开(公告)号：ES2370954T3

公开(公告)日：2011-12-26

申请号：ES08786037

申请日：2008-07-10

Applicant: BASF SE

Inventor： VENKATESH RAJAN ,  KLIMOV EVGUENI ,  PEPERS MICHEL ,  HECKMANN WALTER ,  GREINER ANDREAS ,  STOILJKOVIC ALEKSANDAR ,  SCHMIDT-THUEMMES JUERGEN ,  RAMAN VIJAY

IPC: D01D5/00 ,  D01F6/52

Abstract: Proceso para la producción de fibras poliméricas, en cuyo caso una dispersión coloidal de al menos un polímero esencialmente insoluble en agua en un medio acuoso se electrohila a una temperatura de proceso de 5 a 90°C, caracterizado porque el al menos un polímero esencialmente insoluble en agua tiene una temperatura de transición vítrea Tg, medida por medio de DSC que se encuentra en un rango de máximo 15°C por encima a máximo 15°C por debajo de la temperatura de proceso.

公开(公告)号：CA2800927A1

公开(公告)日：2011-12-22

申请号：CA2800927

申请日：2011-06-14

Applicant: BASF SE

Inventor： SCHMIDT-THUEMMES JUERGEN ,  EVSTATIEVA ELITSA ,  MOREL AURELIE ,  LAWRENZ DIRK ,  SEYFFER HERMANN

IPC: C08F220/18 ,  C08F2/22 ,  C08F212/08 ,  D21H19/58

Abstract: Aqueous polymer dispersions and processes for preparing them are described. The polymer dispersions can be obtained by free-radically initiated emulsion polymerization of from 19.9 to 80 parts by weight of vinylaromatic compounds, from 19.9 to 80 parts by weight of acrylate monomers selected from among C1-C10-alkyl acrylates and C1-C10-alkyl methacrylates, from 0.1 to 10 parts by weight of ethylenically unsaturated acids and from 0 to 20 parts by weight of other ethylenically unsaturated monomers, wherein the emulsion polymerization is carried out in an aqueous medium in the presence of free-radical-forming initiators, seed latex and at least one carbohydrate compound in the form of a degraded starch. The polymer dispersions are particularly suitable for producing paper coating compositions.

公开(公告)号：CA2742885A1

公开(公告)日：2010-06-03

申请号：CA2742885

申请日：2009-11-20

Applicant: BASF SE

Inventor： EVSTATIEVA ELITSA ,  SCHMIDT-THUEMMES JUERGEN ,  LAWRENZ DIRK

IPC: C08F251/00 ,  C08B31/00 ,  C08F251/02 ,  C08F279/02 ,  C08F279/04 ,  C08L51/02 ,  C08L55/02 ,  C09D151/02 ,  C09D155/02 ,  D21H19/54 ,  D21H19/58

Abstract: What is described is a method for preparing aqueous polymer dispersions, wherein a vinyl aromatic compound such as styrene, a conjugated aliphatic diene such as butadiene and an ethylenically unsaturated carboxylic acid nitrile such as acetonitrile are copolymerized in an aqueous medium. The copolymerization is done in the presence of a decomposed starch and radical-forming initiators. At least a portion of the various monomers of ethylenically unsaturated carboxylic acid nitriles are polymerized before the ethylenically unsaturated carboxylic acid nitriles are added to the polymerization mixture.

公开(公告)号：CA2729498A1

公开(公告)日：2010-01-07

申请号：CA2729498

申请日：2009-06-30

Applicant: BASF SE

Inventor： SCHMIDT-THUEMMES JUERGEN ,  ESSER ANTON ,  NIEBERLE JOERG

IPC: C09C1/02 ,  D21H17/00 ,  D21H17/10 ,  D21H17/21 ,  D21H17/34 ,  D21H17/67 ,  D21H17/69

Abstract: Aqueous suspensions of fine-particulate fillers that are at least partially lined with anionic lattices, wherein the suspensions are obtained from the treatment of aqueous suspensions of fine-particulate fillers with at least one anionic latex comprising at least one polymerized monomer containing a phosphonic or phosphoric acid group, preparation of the aqueous suspensions and use thereof as additives to paper materials in the production of paper containing fillers, carton containing fillers or corrugated cardboard containing fillers by de-watering the paper materials.