| Patent Number |
Title Of Patent |
Date Issued |
| 7345168 |
Process for the preparation of polyphosphates of organic bases |
March 18, 2008 |
| A simple and economical process for the preparation of polyphosphates of organic bases consists of reacting a mixture of phosphorus pentoxide and at least one organic nitrogen base with at least one compound which releases water accompanied by decomposition under the prevailing condi |
| 7214811 |
Derivative of phosphoric acid ester salt or phosphoric acid ester adduct or mixtures thereof, me |
May 8, 2007 |
| A derivative of phosphoric acid ester salt or adduct or a mixture thereof is obtained from a reaction product, polycondensed with at least one aldehyde, of at least one polyol phosphoric acid ester with at least one organic nitrogen base. The derivative is advantageously used as a fl |
| 6512133 |
Process for the production of phosphoric acid esters or phosphoric acid ester mixtures of polyhy |
January 28, 2003 |
| A process for the production of phosphoric acid esters or phosphoric acid ester mixtures of polyhydric alcohols by reaction of the polyhydric alcohols with phosphorus pentoxide is characterized in that the amount of phosphorus pentoxide which is required for the esterification operation |
| 5665149 |
Anti-corrosion pigment and use thereof |
September 9, 1997 |
| An active heavy metal-free and non-toxic anti-corrosion pigment based on phosphate, which is particularly environmentally friendly, is a mixture of .beta.-tricalcium phosphate and tertiary magnesium phosphate or dicalcium phosphate dihydrate. It has good compatibility with the usual raw |
| 5607990 |
Method for making phenol-formaldehyde resins flame-resistant |
March 4, 1997 |
| In the method described, one or more halogen-free phosphorus compounds are incorporated in the precondensed resins before the final resin-curing stage. During final curing, the phosphorus compounds are bound by covalent bonds into the resin structure and/or are trapped in the resin struc |
| 5539141 |
Mixed boric acid/phosphoric acid esters of polyols, their preparation and use |
July 23, 1996 |
| Described are mixed boric acid/phosphoric acid esters which may be obtained by subjecting at least one phosphorus compound capable of ester formation and at least one boron compound capable of ester formation simultaneously to an esterification reaction with at least one polyol and/or a |
