Isocyanate-based compositions, their process for utilization, their utilization for producing coatings and coatings thus obtained

• US 20050154175A1
• Filed: 12/08/2004
• Published: 07/14/2005
• Est. Priority Date: 02/29/1996
• Status: Abandoned Application

• Current Assignee: Arnaud Lyothier, Jean-Marie Bernard, Minou Nabavi, Thierry Jeannette
• Original Assignee: Arnaud Lyothier, Jean-Marie Bernard, Minou Nabavi, Thierry Jeannette
• Inventors: Bernard, Jean-Marie, Lyothier, Arnaud, Jeannette, Thierry, Nabavi, Minou
• Application Number:
  US11/006,943
• Publication Number:
  US 20050154175A1
• Time in Patent Office: Days
• US Class Current: 528/44
• CPC Class Codes: C07C 263/18 Separation; Purification; Stabilisation; Use of additives
• CPC Class Codes: C07C 265/14 containing at least two isocyanate groups bound to the same carbon skeleton
• CPC Class Codes: C08G 18/6254 Polymers of alpha-beta ethylenically unsaturated carboxylic acids and of esters of these acids containing hydroxy groups
• CPC Class Codes: C08G 18/706 the liquid medium being water
• CPC Class Codes: C08G 18/7831 containing biuret groups
• CPC Class Codes: C08G 18/792 formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
• CPC Class Codes: C08K 5/521 Esters of phosphoric acids, e.g. of H3PO4
• CPC Class Codes: C09D 175/04 Polyurethanes

Abstract

The present invention relates to a composition based on isocyanate(s), advantageously not completely masked. This composition is defined in that it comprises a compound containing an anionic functional group and a polyethylene glycol chain fragment of at least 5, advantageously of at least 7 ethyleneoxy units. Application to organic synthesis.

Claims

1-27. -27. (canceled)

28. A coating composition, comprising, in emulsion in water, a composition autodispersible in aqueous phase comprising a mixture of an aliphatic isocyanate composition, with at least one surfactant containing an anionic functional group, a countercation and, a polyethylene glycol chain fragment having one or more ethyleneoxy units, wherein the anionic functional group of said surfactant corresponds to the following formula:

29. A coating composition according to claim 28, further comprising a polyol.

30. A coating composition according to claim 29, wherein the mass content of the isocyanate, the surfactant and the polyol is between 30 to 70% relative to the totality of said composition.

31. A coating composition according to claim 28, wherein the mass ratio between the surfactant and the isocyanate is between 4 and 10%.

32. A coating composition according to claim 31, for coating a ferrous compound or alumina support.

33. A coating composition according to claim 28, wherein the aliphatic isocyanate is not completely masked.

34. A coating composition according to claim 28, whose pH is at least equal to 3 and at most equal to 11.

35. A coating composition according to claim 28, wherein the anionic functional group is phosphonium, tertiary ammonium, quaternary ammonium, or sulphonium.

36. A coating composition according to claim 28, wherein said quantity of surfactant is between 5×

10<sup>−

2</sup> and 0.5 atom of E.