Basf Se Corporation

Ciba Specialty Chemicals Corporation

Petrus Johannes Harbers

Frank Oliver Heinrich Pirrung

Arend Noordam

Min Zhu

Lothar Alexander Engelbrecht

Weiqiu Hu

Elizabeth Maaike Loen

Chuanjin Zhu

Martin Philipoom

Arona Eliane Munneke

This disclosure relates to a silicone free defoamer for solvent based coatings, especially clear wood coatings preferably based on a graft copolymer of poly alkyl vinyl ether. The coating composition comprises a resin binder component and a defoamer formulation. 

Silicone free defoamer for solvent based coatings

The invention relates to a slip- and leveling agent characterized in that it comprises a copolymer which is obtained by copolymerizing A. at least one unit of a mono- or di perfluoroester of an unsaturated dicarboxylic-acid; B. at least one terminal reactive polysiloxane unit; C. at least one alkyl(meth)acrylate unit or cycloalkyl(meth)acrylate unit and/or (meth)acrylic acid and/or other units originating from vinylic compounds that can form radicals.

Slip- and leveling agent

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. 

Phosphoric acid esters and their use as wetting and dispersing agent

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Sintjohannesga, Netherlands

Petrus Johannes Harbers