Paulus Franciscus Anna
Paulus Franciscus Anna Buijsen, Maassluis NL
Patent application number | Description | Published |
---|---|---|
20100016503 | POWDER COATINGS & USES THEREOF - The invention relates to a binder comprising crosslinker and branched, partially defunctionalized, acid-functional polyester based on: a. At least one multi-functional component; b. At least one di-functional component that is reactive towards a functional group on the multi-functional component; and c. At least one mono-functional component; wherein the polyester has a glass transition temperature of 40° C. or greater. | 01-21-2010 |
20100152393 | BRANCHED POLYESTER CONTAINING POWDER COATING COMPOSITION - The invention relates to binder comprising a crosslinker that is reactive with acid-functional polyester and a branched, partially defunctionalized acid-functional polyester, wherein the polyester is based on: a. At least one multi-functional component that is either carboxyl-functional, hydroxyl-functional or carboxyl- and hydroxyl-functional; b. At least one di-functional component that is reactive towards a functional group on the multi-functional component; and c. At least one mono-functional component; wherein the multi-functional component does not contain a tertiary carboxylic functionality and at least 50% of the acid-derived groups originate from an aromatic acid. | 06-17-2010 |
20120231283 | POWDER COATING COMPOSITION COMPRISING A POLYESTER AND A CROSSLINKER WITH OXIRANE GROUPS PROVIDING IMPROVED CORROSION RESISTANCE TO A SUBSTRATE COATED THEREWITH - The invention relates to a carboxylic acid functional branched polyester for thermosetting powder coating composition, wherein said polyester is prepared from at least the following monomers: a difunctional aromatic acid, the difunctional aromatic acid being a combination of terephthalic acid (TPA), isophthalic acid (IPA), an at least trifunctional monomer and a difunctional alcohol, the difunctional alcohol being a combination of at least ethylene glycol (EG) and/or diethylene glycol (DEG) and neopentyl glycol (NPG), the molar ratio of TPA to IPA in the carboxylic acid functional branched polyester is at most 12.4, and the functionality of the carboxylic acid functional branched polyester is from 2.15 to 4.0, and the carboxylic acid functional branched polyester has an acid value of from 14 to 80 mg KOH/g resin, and the carboxylic acid functional branched polyester has a glass transition temperature of at least 40C. The powder coating compositions of the present invention derived upon curing of the thermosetting powder coating compositions which comprise the polyester according to the invention together with a crosslinker with oxirane groups and an epoxy cure catalyst present good corrosion resistance to steel substrates. Furthermore, said low cost and corrosion resistant powder coatings may present good reverse impact resistance (RIR) and/or good smoothness. | 09-13-2012 |
Paulus Franciscus Anna Buijsen, Echt NL
Patent application number | Description | Published |
---|---|---|
20140234642 | RESIN COMPOSITIONS FOR THERMOSETTING POWDER COATING COMPOSITIONS - The invention relates to a resin composition comprising at least an organophosphorous compound and a branched amorphous carboxylic acid functional polyester, said polyester having a T | 08-21-2014 |
Paulus Franciscus Anna Buijssen, Maassluis NL
Patent application number | Description | Published |
---|---|---|
20120070630 | POWDER COATING COMPOSITION COMPRISING A POLYESTER AND A BETA-HYDROXYALKYLAMIDE AS CROSSLINKER - The invention relates to a thermosetting powder coating composition comprising a crosslinker and a polyester, wherein the polyester has functional groups which functional groups are capable of reacting with β-hydroxyalkylamide groups, wherein the polyester is prepared from at least the following monomers: neopentylglycol, a difunctional alcohol other than neopentylglycol; isophthalic acid, terephthalic acid, optionally adipic acid and a branching monomer chosen from the group of an at least trifunctional carboxylic acid, an at least trifunctional alcohol, an at least trifunctional hydroxy carboxylic acid and mixtures thereof, wherein the amount of difunctional alcohol other than neopentylglycol in the polyester ranges from 1 to 50% w/w based on the polyester, wherein the amount of isophthalic acid in the polyester ranges from 6 to 35% w/w based on the polyester, wherein the polyester has a functionality of at least 2.1, wherein the crosslinker is a compound having β-hydroxyalkylamide groups. This thermosetting powder coating composition has the ability to be cured at low temperature, while at the same time being able provide powder coatings having at least two of the following three properties: limited blooming to no blooming, an acceptable smoothness, sufficient impact resistance. | 03-22-2012 |