| Patent application number | Description | Published |
|---|
| 20090272506 | PAPERS WITH A HIGH FILLER MATERIAL CONTENT AND HIGH DRY STRENGTH - A process for producing paper, board and cardboard in the presence of an aqueous slurry of components comprising finely divided fillers coated at least partly with water-soluble amphoteric copolymers, which involves adding, further to the aqueous slurry of components comprising finely divided fillers, at least one cationic and/or amphoteric polymer comprising as structural element no esters of unsaturated carboxylic acids with quaternized amino alcohols to the fiber suspension prior to sheet forming. | 11-05-2009 |
| 20100179248 | AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS, A PROCESS FOR THEIR PREPARATION AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - Aqueous slurries of finely divided fillers which are at least partly coated with a composition comprising at least one water-soluble amphoteric copolymer and at least one swollen starch. | 07-15-2010 |
| 20100181037 | AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS, A PROCESS FOR THEIR PREPARATION AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - Aqueous slurries of finely divided fillers which are at least partly coated with a composition comprising at least one water-soluble amphoteric copolymer and at least one latex. | 07-22-2010 |
| 20100181038 | PREPARATION OF AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - Process for treating aqueous slurries of finely divided fillers, an aqueous dispersion of at least one latex and an aqueous slurry of at least one starch being metered separately from one another into an aqueous slurry of at least one finely divided filler. | 07-22-2010 |
| 20100186915 | PREPARATION OF AQUEOUS SLURRIES OF FINELY DIVIDED FILLERS AND THEIR USE FOR THE PRODUCTION OF PAPERS HAVING A HIGH FILLER CONTENT AND HIGH DRY STRENGTH - A process for treating aqueous slurries of finely divided fillers, wherein the treatment is carried out by heating an aqueous slurry of at least one finely divided filler and then by adding an aqueous dispersion of at least one latex. | 07-29-2010 |
| 20110048660 | PROCESS FOR THE PRODUCTION OF PAPER, BOARD AND CARDBOARD HAVING HIGH DRY STRENGTH - Process for the production of paper, board and cardboard having high dry strength by separate addition of a water-soluble cationic polymer and of an aqueous dispersion of a water-insoluble polymer having a content of acid groups of not more than 10 mol % or of an aqueous dispersion of a nonionic polymer, which dispersion has been made anionic, to a paper stock, draining of the paper stock and drying of the paper products. Preferably, the polymers are added to a paper stock which has a temperature of at least 40° C. | 03-03-2011 |
| 20110079365 | PRODUCTION OF PAPER - The use of water-soluble, amphoteric copolymers which are obtainable by copolymerization of
| 04-07-2011 |
| 20110100575 | AQUEOUS SUSPENSIONS OF FINE-PARTICULATE FILLERS, METHOD FOR THE MANUFACTURE THEREOF AND USE THEREOF FOR THE MANUFACTURE OF FLUID-CONTAINING PAPERS - Aqueous slurries of finely divided fillers which are at least partly covered by anionic latices, the slurries being obtainable by treating aqueous slurries of finely divided fillers with at least one anionic latex which comprises, incorporated in the form of polymerized units, at least one monomer comprising phosphonic and/or phosphoric acid groups, preparation of the aqueous slurries and their use as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining the paper stock. | 05-05-2011 |
| 20110108226 | AQUEOUS SUSPENSIONS OF FINE-PARTICULATE FILLERS, METHOD FOR THE MANUFACTURE THEREOF AND USE THEREOF FOR THE MANUFACTURE OF FLUID-CONTAINING PAPERS - Aqueous slurries of finely divided fillers which are at least partly covered by anionic latices, the slurries being obtainable by treating aqueous slurries of finely divided fillers with at least one anionic latex with a glass transition temperature of −5 to −50° C., preparation of the aqueous slurries and their use as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining the paper stock. | 05-12-2011 |
