公开(公告)号：WO1992007973A1

公开(公告)日：1992-05-14

申请号：PCT/US1991007927

申请日：1991-10-24

Applicant: HENKEL CORPORATION

Inventor： HENKEL CORPORATION ,  REGHI, Gary, A.

IPC: C23C22/34

CPC classification number: C23C22/34

Abstract: An exceptionally effective chromium free corrosion protective surface treatment composition for aluminum and its alloys is an aqueous acidic liquid comprising water and: (A) from about 0.8 to about 1.2 w/o of H2ZrF6; (B) from about 0.08 to about 0.12 w/o of dispersed silica; (C) from about 0.08 to about 0.12 w/o of a water soluble or dispersible polymer of 3-(N-methyl-N-2-hydroxyethyl-aminomethyl)-4-hydroxystyrene; and (D) from 0.10 - 0.15 w/o of 1-propoxy-2-propanol. The surface to be treated is contacted with the composition and then dried without rinsing. A conventional organic coating may advantageously be applied over the surface produced by this treatment.

公开(公告)号：WO1995009934A1

公开(公告)日：1995-04-13

申请号：PCT/US1994010587

申请日：1994-09-28

Applicant: HENKEL CORPORATION

Inventor： HENKEL CORPORATION ,  DOLAN, Shawn, E. ,  REGHI, Gary, A.

IPC: C23C22/48

CPC classification number: C23C22/37 ,  C09D5/08 ,  C23C22/34

Abstract: Heating an aqueous mixture of a fluoroacid such as H2TiF6 and an oxide, hydroxide, and/or carbonate such as silica produces a clear mixture with long term stability against settling of any solid phase, even when the oxide, hydroxide, or carbonate phase before heating was a dispersed solid with sufficiently large particles to scatter light and make the mixture before heating cloudy. The clear mixture produced by heating can either be mixed with water soluble and/or water dispersible polymers, for example with dispersed polymers of the diglycidyl ether of bisphenol-A or an acrylic acid polymer, or with soluble hexavalent and/or trivalent chromium, to produce a composition that improves the corrosion resistance of metals treated with the composition, especially after subsequent painting.

Abstract translation: 加热含氟酸如H 2 TiF 6和氧化物，氢氧化物和/或碳酸盐如二氧化硅的水性混合物，即使在加热之前的氧化物，氢氧化物或碳酸盐相时也会产生具有长期稳定性的任何固相沉淀的透明混合物 是具有足够大的颗粒的分散的固体，以散射光并使混合物在加热混浊之前。 通过加热制备的透明混合物可以与水溶性和/或水分散性聚合物混合，例如与双酚A的二缩水甘油醚或丙烯酸聚合物的分散的聚合物或可溶的六价和/或三价铬混合到 产生提高用组合物处理的金属的耐腐蚀性的组合物，特别是在随后的涂漆之后。

公开(公告)号：WO1993020260A1

公开(公告)日：1993-10-14

申请号：PCT/US1993002634

申请日：1993-03-26

Applicant: HENKEL CORPORATION

Inventor： HENKEL CORPORATION ,  DOLAN, Shawn, E. ,  REGHI, Gary, A.

IPC: C23C22/34

CPC classification number: C23C22/34 ,  C23C22/37

Abstract: Heating an aqueous mixture of a fluoroacid such as H2TiF6 and an oxide, hydroxide, and/or carbonate such as silica produces a clear mixture with long term stability against settling of any solid phase, even when the oxide, hydroxide, or carbonate phase before heating was a dispersed solid with sufficiently large particles to scatter light and make the mixture before heating cloudy. The clear mixture produced by heating can either be mixed with water soluble and/or water dispersible polymers that are polyhydroxyalkylamino-substituted polymers and/or copolymers of p^_-vinyl phenol, or with soluble hexavalent and/or trivalent chromium, to produce a composition that improves the corrosion resistance of metals treated with the composition, especially after subsequent painting.