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1. (WO1998051416) PROCESS FOR PHOSPHATING A SUBSTRATE SURFACE AND PRODUCT THEREFROM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/051416 International Application No.: PCT/US1998/009215
Publication Date: 19.11.1998 International Filing Date: 14.05.1998
Chapter 2 Demand Filed: 15.09.1998
IPC:
B05D 7/00 (2006.01) ,C23C 22/73 (2006.01) ,C23C 24/04 (2006.01) ,C23C 30/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
05
SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
D
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
7
Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22
Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
73
characterised by the process
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
24
Coating starting from inorganic powder
02
by application of pressure only
04
Impact or kinetic deposition of particles
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
30
Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
Applicants:
HENKEL CORPORATION [US/US]; Suite 200 2500 Renaissance Boulevard Gulph Mills, PA 19406, US (AllExceptUS)
FUKUYA, Kenichi [JP/JP]; JP (UsOnly)
KOJIMA, Ryuji [JP/JP]; JP (UsOnly)
HIRAI, Eiji [JP/JP]; JP (UsOnly)
Inventors:
FUKUYA, Kenichi; JP
KOJIMA, Ryuji; JP
HIRAI, Eiji; JP
Agent:
WISDOM, Norvell, E., Jr.; Henkel Corporation Suite 200 2500 Renaissance Boulevard Gulph Mills, PA 19406, US
Priority Data:
9/13927714.05.1997JP
Title (EN) PROCESS FOR PHOSPHATING A SUBSTRATE SURFACE AND PRODUCT THEREFROM
(FR) PROCEDE SERVANT A REVETIR AU PHOSPHATE LA SURFACE D'UN SUBSTRAT ET PRODUIT OBTENU
Abstract:
(EN) An adherent coating that contains phosphate anions and is predominantly barbosalite with an approximate chemical formula of Fe(III)2Fe(PO4)2(OH)2 is formed on a substrate surface by vigorous physical impingement of a finely divided solid material that is predominantly barbosalite onto the substrate surface that is to be coated. The required barbosalite may be made by the hydrothermal treatment of a solid that is predominantly ferric phosphate. This solid advantageously may be the sludge from a conventional phosphate conversion coating process and may contain zinc, nickel, sodium, and nitrate ions in addition to its predominant content of ferric phosphate. The substrate need not be cleaned before contacting it with the solid phosphate particulate in a process according to this invention, as would be required to obtain good results in many conventional chemical phosphating processes, because the impinging action of the solid phosphate particulate polishes any soil away form the substrate surface.
(FR) Revêtement adhésif contenant des anions phosphate, à prédominance de barbosalite, dont la formule chimique approximative est Fe(III)2Fe(PO4)2(OH)2, et dont on recouvre la surface d'un substrat par impact physique vigoureux d'un matériau solide finement divisé, à prédominance de barbosalite. On peut produire barbosalite par traitement hydrothermique d'un solide, en particulier, un phosphate ferrique. Ce solide peut être, de façon avantageuse, la pâte obtenue à partir d'un procédé classique de revêtement par conversion de phosphate et peut contenir zinc, nickel, sodium et des ions nitrate en plus de sa teneur prédominante en phosphate ferrique. Il n'est pas nécessaire de nettoyer ce substrat avant de le mettre en contact avec les particules solides de phosphate, selon le procédé décrit par l'invention, comme ce serait le cas dans de nombreux procédés classiques de phosphatation chimique afin d'obtenir de bons résultats, étant donné que l'impact des particules solides de phosphate exerce un effet de polissage éloignant toute salissure de la surface du substrat.
Designated States: CA, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)