| Patent Number |
Title Of Patent |
Date Issued |
| 7250093 |
Method using a dry fluidised bed for producing thin, absorbent surface structures |
July 31, 2007 |
| A process for producing thin absorbent planar structures which may be used in hygiene products such as diapers, incontinence products, wound contact materials or sanitary napkins to absorb body fluids, comprises the steps of: A) producing a mixture of an adhesive in dispersion form and a |
| 7220821 |
Process for the reduction of the residual monomer content of water-absorbent foam |
May 22, 2007 |
| A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams containing units derived from monoethylenically unsaturated acids, which comprises treating the formed articles with at le |
| 7022874 |
Preparation of biuret-containing polyisocyanates |
April 4, 2006 |
| A process for the preparation of polyisocyanates which contain one or more biuret groups, by reacting a) an aliphatic or cycloaliphatic isocyanate containing two or more isocyanate groups (isocyanate a) with b) a tertiary alcohol or a mixture of water and a tertiary alcohol (biuretiz |
| 6750262 |
Water-absorbing, cellular, cross-linked polymers with improved distribution effect, method for t |
June 15, 2004 |
| Water-absorbing, expanded, crosslinked polymers obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, |
| 6455600 |
Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production t |
September 24, 2002 |
| A water-absorbing, expanded, crosslinked polymer obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, |
| 6364939 |
Method for reducing the formation of foam during the treatment of a dispersion or a liquid with |
April 2, 2002 |
| A process for reducing the foam formation when a dispersion or liquid is treated with steam bya) introduction of steam into the lower region of a column and simultaneous feed of a medium at the top of the column, the steam ascending to the top of the column,b) contacting the medium with |
| 6229043 |
Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyan |
May 8, 2001 |
| Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (raw MDI) having a reduced iodine color number and a reduced chlorine content are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines wit |
| 6066759 |
Process and device for preparing (cyclo)aliphatic biuret groups-containing polyisocyanates |
May 23, 2000 |
| In a process and an apparatus for preparing (cyclo)aliphatic polyisocyanates containing biuret groups from (cyclo)aliphatic diisocyanates and steam or a substance capable of splitting off water as reactants which are mixed with one another in a stirred reactor, the reactants are pass |
| 5641851 |
Preparation of biuret-containing polyisocyanates |
June 24, 1997 |
| The invention is to a process for the preparation of biuret-containing polyisocyanates by catalytic reaction of aliphatic and/or cycloaliphatic diisocyanates with a biuretizing agent, where the biuretizing agent employed is water in finely disperse form and the reaction is carried out |
