The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2009
Filed:
Feb. 28, 2005
Frank Oliver Heinrich Pirrung, Weil am Rhein, DE;
Arend Noordam, Oranjewoud, NL;
Petrus Johannes Harbers, Sintjohannesga, NL;
Elizabeth Maaike Loen, Leeuwarden, NL;
Arona Eliane Munneke, Heerhugowaard, NL;
Frank Oliver Heinrich Pirrung, Weil am Rhein, DE;
Arend Noordam, Oranjewoud, NL;
Petrus Johannes Harbers, Sintjohannesga, NL;
Elizabeth Maaike Loen, Leeuwarden, NL;
Arona Eliane Munneke, Heerhugowaard, NL;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The invention relates to a phosphoric acid ester and salts thereof of the general formula (I), wherein A is a monohydroxyl residue derived from C-C-alkyl-(AO)x-OH or Acyl-(AO)x-OH; or C-C-alkyl-(AO)x-(HA)y-OH or Acyl-(AO)x-(HA)y-OH; or C-C-alkyl-(AO)x-(AA-AO)y-OH or Acyl-(AO)x-(AA-AO)y-OH; or MO-(HA)y-OH or MO-(AA-AO)y-OH; wherein Acyl is an aromatic carboxylic acid residue or a saturated or unsaturated fatty acid residue; AO is a polyC-Calkyleneglycol residue, HA is a hydroxycarboxylic acid or a lactone thereof, AA is a dicarboxylic acid, MO is a monoalcohol, x is 1 to 250, y is 1 to 250, B is a mono-, di-, or tri- or polyhydroxy di-, tri or multi-carboxylic acid residue which is linked via the hydroxy group to the phosphoric acid and via one of the carboxylic acid groups to the monohydroxyl residue [A], the remaining carboxyl acid group(s) is/are free or is/are esterified with a further monohydroxyl residue [A], resulting in branched esters; n is 1-2; m is 1-4. The phosphoric acid esters are used as wetting agent or dispersants.