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：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：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：US5667843A

公开(公告)日：1997-09-16

申请号：US965643

申请日：1992-10-23

申请人： Noriaki Yoshitake ,  Kensuke Mizuno ,  Takao Ogino

发明人： Noriaki Yoshitake ,  Kensuke Mizuno ,  Takao Ogino

IPC分类号： C23C22/73 ,  C23C22/78 ,  B05D3/04 ,  C23C22/24

CPC分类号： C23C22/73 ,  C23C22/78

摘要： The protection against black and white rust on zinciferous surfaces by a conventional chromating treatment is improved by drying into place on the zinciferous surface before chromating a pre-treatment composition that contains hexavalent chromium ion plus one or more salts of nickel and cobalt, in an amount to produce an add-on of 0.5 to 100 mg/m.sup.2 of metal.

摘要翻译： 通过常规镀铬处理在镀锌表面上防止黑色和白色锈蚀的保护通过在含铬六价铬离子加上一种或多种镍和钴盐的预处理组合物铬化之前在锌表面上进行干燥而得到改善，其量为 以产生0.5至100mg / m 2的金属的附加物。

公开(公告)号：US5624480A

公开(公告)日：1997-04-29

申请号：US537753

申请日：1995-10-10

申请人： Noriaki Yoshitake ,  Yoshiyuki Murasawa ,  Shotaro Tsuda

发明人： Noriaki Yoshitake ,  Yoshiyuki Murasawa ,  Shotaro Tsuda

IPC分类号： C23C18/32 ,  C23C22/78 ,  C23C22/07

CPC分类号： C23C22/78 ,  C23C18/32

摘要： An acidic substitutional plating bath for zinciferous surfaces, particularly zinciferous metal-plated steel sheet, with which sludge production and equipment corrosion are inhibited and which has an improved heavy metal ion deposition efficiency is provided by an aqueous composition that has a pH of 2 to 4.5 and that contains 1.5 to 40 g/L of at least one heavy metal ion selected from nickel, iron, and cobalt; 0.5 to 10 g/L of phosphate ions; 1 to 250 g/L of sulfate ion; and 1 to 20 g/L of organic acid.

摘要翻译： PCT No.PCT / US94 / 03225 Sec。 371 1995年10月10日第 102（e）日期1995年10月10日PCT 1994年3月28日PCT公布。 第WO94 / 23089号公报 日期：1994年10月13日，对具有污泥生产和设备腐蚀被抑制并具有改善的重金属离子沉积效率的镀锌表面，特别是含锌金属镀覆钢板的酸性替代镀浴，由具有 pH为2〜4.5，含有1.5〜40g / L的选自镍，铁，钴的至少一种重金属离子; 0.5〜10g / L磷酸盐离子; 1〜250g / L硫酸根离子; 和1〜20g / L的有机酸。

公开(公告)号：US5362333A

公开(公告)日：1994-11-08

申请号：US39255

申请日：1993-04-15

申请人： Noriaki Yoshitake ,  Kensuke Mizuno ,  Hitoshi Ishii

发明人： Noriaki Yoshitake ,  Kensuke Mizuno ,  Hitoshi Ishii

IPC分类号： C23C22/78

CPC分类号： C23C22/78

摘要： Drying into place a covering of an aqueous solution of nickel and/or cobaltous sulfate and/or phosphate salts on a zinc or zinc alloy surface improves at least one of the blackening resistance and corrosion resistance after subsequent chromating treatment and the corrosion resistance and paint adherence after subsequent chromating treatment and painting.

摘要翻译： PCT No.PCT / US91 / 07586 Sec。 371日期：1993年4月15日 102（e）日期1993年4月15日PCT 1991年10月9日提交。在锌或锌合金表面上放置镍和/或硫酸钴和/或磷酸盐水溶液的覆盖物改善至少一个 随后的铬化处理后的耐黑变性和耐腐蚀性以及随后的铬酸盐处理和涂漆后的耐腐蚀性和涂料粘附性。

公开(公告)号：US06372365B1

公开(公告)日：2002-04-16

申请号：US09338598

申请日：1999-06-23

申请人： Masatoshi Ibuki ,  Osamu Goto ,  Noriaki Yoshitake ,  Yoshiyuki Murasawa ,  Shotaro Tsuda

发明人： Masatoshi Ibuki ,  Osamu Goto ,  Noriaki Yoshitake ,  Yoshiyuki Murasawa ,  Shotaro Tsuda

IPC分类号： B05D714

CPC分类号： B05D7/16 ,  B05D2350/65 ,  C23C2222/20 ,  Y10T428/12569 ,  Y10T428/12757 ,  Y10T428/12799 ,  Y10T428/31663

摘要： A resin-coated Al—Zn alloy coated steel sheet is excellent in formability, resistance to chromium dissolution, corrosion resistance, alkali resistance, and paintability, and produced by the following method. That is, a silane coupling agent having amino group, chromium ion and at least one alcohol selected from the group consisting of trihydric alcohol and dihydric alcohol having the number of carbon of 2 to 3 are compounded into an acrylic polymer resin emulsion including carboxyl group and glycidyl group, and having an acid value of 10 to 60. A pH of the resultant mixture is adjusted within a range of 7 to 9 to obtain a chromate containing resin composition. The chromate containing resin composition is applied on an Al—Zn alloy coated steel sheet as a substrate, and then dried to obtain a resin film on the substrate. A compounding amount of the silane coupling agent is within a range of 0.5 to 3.0 wt % with respect to a resin solid component of the acrylic polymer resin emulsion. A compounding amount of the alcohol is within a range of 25 to 150 wt % with respect to the chromium ion. An amount of the resin film is within a range of 0.5 to 3.0 g/m2, and a content of chromium ion in the resin film is within a range of 5 to 50 mg/m2.

摘要翻译： 树脂涂覆的Al-Zn合金涂层钢板的成型性，耐铬溶解性，耐腐蚀性，耐碱性和可涂布性优异，并且通过以下方法制造。 也就是说，将具有氨基，铬离子和至少一种选自碳数为2〜3的三元醇和二元醇的醇的硅烷偶联剂配合成包含羧基和 缩水甘油基，酸值为10〜60。将所得混合物的pH调节在7〜9的范围内，得到含有铬酸盐的树脂组合物。 将含铬酸盐的树脂组合物涂布在作为基材的Al-Zn合金涂层钢板上，然后干燥以在基材上获得树脂膜。 相对于丙烯酸系聚合物树脂乳液的树脂固体成分，硅烷偶联剂的配合量在0.5〜3.0重量％的范围内。 醇的配合量相对于铬离子为25〜150重量％的范围。 树脂膜的量在0.5〜3.0g / m 2的范围内，树脂膜中的铬离子的含量在5〜50mg / m 2的范围内。