Abstract: The subject of the present invention is the use of at least one element chosen from among yttrium, zirconium, lanthanum, cerium, praseodymium and neodymium, in the form of oxides or salts, as reinforcing agent for the anticorrosion properties of an anticorrosion coating composition containing a particulate metal, in aqueous or organic phase, for metal parts.
Type:
Application
Filed:
November 10, 2011
Publication date:
March 1, 2012
Applicant:
DACRAL
Inventors:
Jean-Marie Poulet, Alain Chesneau, Carmen Delhalle
Abstract: The subject matter of the invention is the use of MoO3 as a corrosion coating composition for metal parts, characterized in that it comprises: at least one particulate metal; an organic solvent; a thickener; a silane-based binder, preferably carrying epoxy functional groups; molybdenum oxide (MoO3); possibly a silicate of sodium, potassium or lithium; and water.
Type:
Grant
Filed:
January 13, 2006
Date of Patent:
July 31, 2007
Assignee:
Dacral
Inventors:
Etienne Maze, Carmen Mocquery, Benoit Millet, Antonio Francisco Iandoli Espinosa
Abstract: The invention relates to a coating composition for a metal substrate exhibiting a free outer surface consisting of a metal coating based on zinc or a zinc-based alloy, characterized in that it comprises: silicate(s) of sodium and/or potassium and/or lithium (3-35 wt. %), a tensioning agent (à.01-1 wt. %), the remainder being water in a quantity sufficient to arrive at 100 %.
Type:
Grant
Filed:
March 18, 2003
Date of Patent:
June 19, 2007
Assignee:
Dacral
Inventors:
Jean-Marie Poulet, Alain Chesneau, Georges Leger, Denis Begue
Abstract: The subject of the present invention is the use of at least one element chosen from among yttrium, zirconium, lanthanum, cerium, praseodymium and neodymium, in the form of oxides or salts, as reinforcing agent for the anticorrosion properties of an anticorrosion coating composition containing a particulate metal, in aqueous or organic phase, for metal parts.
Type:
Application
Filed:
July 13, 2004
Publication date:
November 23, 2006
Applicant:
DACRAL
Inventors:
Jean-Marie Poulet, Alain Chesneau, Carmen Delhalle
Abstract: The subject of the invention is the use of MoO3 as a corrosion inhibitor, and an anti-corrosion coating composition for metal parts, characterized in that it comprises:—at least one particulate metal;—an organic solvent;—a thickener;—a silane-based binder, preferably carrying epoxy functional groups;—molybdenum oxide (MoO3);—possibly a silicate of sodium, potassium or lithium, and;—water.
Type:
Grant
Filed:
December 20, 2005
Date of Patent:
October 10, 2006
Assignee:
Dacral, S.A.
Inventors:
Etienne Maze, Carmen Mocquery, Benoit Millet, Antonio Francisco Iandoli Espinosa
Abstract: The subject matter of the invention is the use of MoO3 as a corrosion coating composition for metal parts, characterized in that it comprises: a least one particulate metal; an organic solvent; a thickener; a silane-based binder, preferably carrying epoxy functional groups; molybdenum oxide (MoO3); possibly a silicate of sodium, potassium or lithium; and water.
Type:
Grant
Filed:
November 12, 2001
Date of Patent:
July 25, 2006
Assignee:
Dacral
Inventors:
Etienne Maze, Carmen Mocquery, Benoit Millet, Antonio Francisco Iandoli Espinosa
Abstract: The invention concerns a method for producing an anticorrosive coating for metal parts, free of chromium and chromium-based derivatives and in particular hexavalent chromium, preferably to be applied in thin layers while providing highly efficient protection. Said coating consists of the synergistic association of a first metal zinc layer and one or several coating layers obtained by using an aqueous composition containing a particulate metal, an appropriate solvent, a thickening agent and a binder consisting of a silane.
Abstract: The invention concerns a method for forming metal parts by cold deformation, consisting in: (i) mechanically depositing a metal zinc layer on the free surface of the blank of the part to be produced; and (ii) forming said part by plastic deformation.
Abstract: The invention relates to an anticorrosion coating composition for a metal substrate, comprising at least:(a) a particulate metal,(b) chromic acid and/or one of its derivatives,(c) boric acid and/or one of its derivatives,(d) a pH regulator such as zinc oxide (ZnO) or cobalt carbonate (CoCO.sub.3),(e) a high-boiling solvent of the polyol or glycol ether type,(f) an organic cosolvent with a specified solubility parameter,(g) a defoaming solvent of the mineral spirit or naphtha type,(h) a system of nonionic surfactants comprising at least one water-soluble surfactant and a surfactant which is soluble in mineral spirit, and(i) water.It also relates to metal substrates covered with the anticorrosion coating resulting from heating after the application of the composition to the substrate.
Abstract: The invention relates to an anticorrosion coating composition for a metal substrate, comprising at least:(a) a particulate metal,(b) chromic acid and/or one of its derivatives,(d) a pH regulator such as zinc oxide (ZnO) or cobalt carbonate (CoCO.sub.3),(e) a high-boiling solvent of the polyol or glycol ether type,(f) an organic cosolvent with a specified solubility parameter,(g) a defoaming solvent of the mineral spirit or naphtha type,(h) a system of nonionic surfactants comprising at least one water-soluble surfactant and a surfactant which is soluble in mineral spirit, and(i) water.It also relates to metal substrates covered with the anticorrosion coating resulting from heating after the application of the composition to the substrate.