公开(公告)号：US4966634A

公开(公告)日：1990-10-30

申请号：US381991

申请日：1989-07-17

申请人： Kenshi Saeki ,  Iwao Kawasaki ,  Yoshikazu Shikaze ,  Mamoru Sugaya

发明人： Kenshi Saeki ,  Iwao Kawasaki ,  Yoshikazu Shikaze ,  Mamoru Sugaya

IPC分类号： C23C22/28 ,  C23C22/30 ,  C23C22/33

CPC分类号： C23C22/30 ,  C23C22/28

摘要： A treating composition for metallic surfaces is characterized by containing hexavalent chromium ions or hexavalent and trivalent chromium ions as inorganic compound, and acrylic-series polymer emulsion obtained by emulsion-polymerizing, by means of a nonionic emulsifying agent which is essentially free of anionic emulsifying agent and cationic emulsifying agent and which contains a polyoxyethylene-polyoxypropylene block polymer, and having a pH of 5 or less.

公开(公告)号：US5141575A

公开(公告)日：1992-08-25

申请号：US505337

申请日：1990-04-05

申请人： Noriaki Yoshitake ,  Kenshi Saeki ,  Takumi Honda ,  Takao Ogino

发明人： Noriaki Yoshitake ,  Kenshi Saeki ,  Takumi Honda ,  Takao Ogino

IPC分类号： C07D311/22 ,  A61K31/35 ,  A61K31/352 ,  A61K47/32 ,  A61K47/38 ,  A61P29/00 ,  C23C22/33

CPC分类号： C23C22/33 ,  C23C2222/20

摘要： Zinciferous surfaces, particularly those of galvanized steel, may be effectively protected against corrosion, either as treated or after painting, while remaining easy to weld, by contact with an aqueous solution containing chromium in both +6 and +3 valence states, phosphate, a tertiary alcohol or similar oxidation stable, water soluble organic compound as a wetting agent, and a silane coupling agent, followed by drying with a film from the solution still in place on the surface. A thin coating containing 10-200 mg/m.sup.2 of chromium is formed on the surface to provide a protective layer that is also an excellent base for paint.

摘要翻译： 通过与含有+6和+3价态的铬的水溶液接触，可以有效地防止含锌表面，特别是镀锌钢的表面，防止被处理或涂漆后的腐蚀，同时保持容易焊接，磷酸盐， 叔醇或类似的氧化稳定性，水溶性有机化合物作为润湿剂，和硅烷偶联剂，然后用溶液从表面干燥。 在表面上形成含有10-200mg / m 2的铬的薄涂层，以提供也是漆的优良基材的保护层。

公开(公告)号：US4959277A

公开(公告)日：1990-09-25

申请号：US444664

申请日：1989-12-01

申请人： Kenshi Saeki ,  Takao Ogino ,  Noriaki Yoshitake ,  Takumi Honda ,  Akira Nishihara ,  Hiroshi Okita ,  Yukio Tsuge ,  Haruo Iizuka

发明人： Kenshi Saeki ,  Takao Ogino ,  Noriaki Yoshitake ,  Takumi Honda ,  Akira Nishihara ,  Hiroshi Okita ,  Yukio Tsuge ,  Haruo Iizuka

IPC分类号： C09D5/44 ,  C08G18/10 ,  C08G18/64 ,  C08K3/36 ,  C09D175/00 ,  C09D175/04 ,  C09D175/12

CPC分类号： C08K3/36 ,  C08G18/10 ,  C08G18/643 ,  C09D175/12 ,  Y10T428/12542 ,  Y10T428/12549 ,  Y10T428/12556 ,  Y10T428/12569 ,  Y10T428/12611 ,  Y10T428/12799 ,  Y10T428/12972

摘要： The present invention relates to a process for surface treatment for cathodic electrodeposit coating of a zinc-plated or zinc alloy-plated steel sheet comprising coating and drying a protective coating material on said steel sheet chromate-treated beforehand, to form a protective film before subjecting the sheet to the cathodic electrodeposit coating, which comprises coating a protective coating material having as a principal constituent of film-forming organic component a block isocyanate-containing prepolymer containing in one and the same molecule respectively at least one blocked isocyanate group, hydroxyl group, and tertiary amono group and containing 10-100 parts by weight of silica sol relative to 100 parts by weight of said prepolymer, in an amount of 0.3 g-4 g/m.sup.2, and then heat-drying the same.

公开(公告)号：US5091023A

公开(公告)日：1992-02-25

申请号：US589146

申请日：1990-09-27

申请人： Kenshi Saeki ,  Noriaki Yoshitake

发明人： Kenshi Saeki ,  Noriaki Yoshitake

IPC分类号： C23C22/30 ,  C23C22/34 ,  C23C22/38

CPC分类号： C23C22/38

摘要： The resistance of chromated zinc surfaced steel objects, particularly plates and sheets, to extraction of hexavalent chromium by alkaline degreasing solutions used on the chromated objects, can be substantially increased by utilizing an aqueous acidic liquid chromating composition containing (A) about 9.6 to about 96 g/L, expressed as its stoichiometric equivalent as chromic acid, of total chromium; (B) about 2 to about 35 g/L of trivalent chromium ions; (C) about 1 to about 128 g/L of phosphate ions; and (D) about 0.3 to about 4 g/L of fluorozirconate ions, with the chromium ratio in the aqueous acidic liquid composition being about 0.41 to about 0.70, the chromic acid/fluorozirconate weight ratio being about 10 to about 40, and the PO.sub.4 /Cr.sup.+3 ratio being greater than about 0.03, greater than or equal to about {(9.2) (the chromium ratio)-4.0}, and less than or equal to about {(9.2) (the chromium ratio)-1.2}. . . The corrosion resistance of the coatings formed can be further improved if the chromating composition also contains about 0.1 to about 200 g/L of dispersed silica.

摘要翻译： 通过使用含有（A）约9.6至约96的酸性液体铬酸盐组合物的酸性液体铬酸盐组合物，可以显着增加铬酸锌表面的钢物体，特别是板和片材对用于铬酸盐物体的碱性脱脂溶液萃取六价铬的电阻 以铬的化学计量当量表示的总铬的g / L; （B）约2〜约35g / L的三价铬离子; （C）约1至约128g / L磷酸根离子; 和（D）约0.3至约4g / L的氟锆酸根离子，酸性液体组合物中的铬比为约0.41至约0.70，铬酸/氟锆酸酯的重量比为约10至约40，PO4 / Cr + 3比大于约0.03，大于或等于约{（9.2）（铬比）-4.0}，小于或等于约{（9.2）（铬比）-1.2}。 。 。 如果铬酸盐组合物还含有约0.1至约200g / L的分散二氧化硅，则可以进一步改善所形成的涂层的耐腐蚀性。

公开(公告)号：US4956027A

公开(公告)日：1990-09-11

申请号：US313330

申请日：1989-02-21

申请人： Kenshi Saeki ,  Noriaki Yoshitake ,  Takayuki Aoki

发明人： Kenshi Saeki ,  Noriaki Yoshitake ,  Takayuki Aoki

IPC分类号： C23C22/83

CPC分类号： C23C22/83

摘要： An aqueous solution of a reducing agent is applied to a chromate coated metal surface to reduce the extent to which the chromate coating undergoes dissolution during a subsequent cleaning process.

摘要翻译： 将还原剂的水溶液施加到铬酸盐涂覆的金属表面上以减少在随后的清洁过程中铬酸盐涂层经历溶解的程度。

公开(公告)号：US4749418A

公开(公告)日：1988-06-07

申请号：US894595

申请日：1986-08-08

申请人： Kenshi Saeki ,  Kazuyuki Ohyama ,  Iwao Kawasaki

发明人： Kenshi Saeki ,  Kazuyuki Ohyama ,  Iwao Kawasaki

IPC分类号： C23C22/33 ,  C23C22/38 ,  C23F11/18

CPC分类号： C23C22/38

摘要： A chromate composition and process provide improved corrosion resistance and paint adhesion for zinc surfaces. The aqueous acidic composition contains hexavalent and trivalent chromium phosphate and fluorozirconate at prescribed concentrations. The composition is applied and dried without rinsing to yield a chromium coating weight of 10-200 mg/m.sup.2.

摘要翻译： 铬酸盐组合物和工艺为锌表面提供了改善的耐腐蚀性和涂料附着力。 水性酸性组合物含有规定浓度的六价和三价铬磷酸盐和氟锆酸盐。 在不冲洗的情况下施用和干燥组合物，得到10-200mg / m 2的铬涂层重量。