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    Chromate-free protective coatings
    1.
    发明授权
    Chromate-free protective coatings 有权
    无铬酸盐保护涂层

    公开(公告)号：US6077885A

    公开(公告)日：2000-06-20

    申请号：US221030

    申请日：1998-12-23

    申请人： Harold E. Hager ,  Chris J. Johnson ,  Kay Y. Blohowiak ,  Chun M. Wong ,  John H. Jones ,  Robert L. Cook, Jr. ,  S. Ray Taylor

    发明人： Harold E. Hager ,  Chris J. Johnson ,  Kay Y. Blohowiak ,  Chun M. Wong ,  John H. Jones ,  Robert L. Cook, Jr. ,  S. Ray Taylor

    IPC分类号： C23C22/56 ,  C09D5/08 ,  C08K3/38 ,  C08L63/02

    CPC分类号： C23C22/56 ,  C09D5/082 ,  C23C22/73 ,  C23C2222/20

    摘要： The invention provides chromate-free coating mixtures, and coatings formed from these mixtures, that protect an underlying aluminum or aluminum alloy substrate from corrosion. The coating mixtures include a continuous phase selected from organic polymeric compositions, or sol-gels, and a distributed phase, dispersed or dissolved throughout the continuous phase. The distributed phase includes the corrosion-inhibiting chromate-free salts. In accordance with the invention, the mixture of salts includes (1) a first salt selected from (a) the esters of rare earth metals, such as cerium and lanthanum oxalates and acetates, and (b) the vanadate salts of alkali and alkali earth metals, such as sodium metavanadate and calcium metavanadate; and (2) a second salt that is a borate salt of alkali earth metals, such as barium metaborate. In certain embodiments, the coatings of the invention include both (a), and (b), in conjunction with the borate salt (2). In other embodiments, the chromate free salt is a chloride of a rare earth metal, or mixture of such chlorides, either alone or in combination with the first salt or the second salt, or both the first and second salts. Coatings of the invention provide protection to an underlying substrate, even after subjection to a 3000 hour salt spray test. Moreover, the coatings are resistant to degradation by SKYDROL, and are able to withstand impacts of 50 inch-pounds (forward) and 30 inch-pounds (reverse), so that they are well suited for use as protective coatings for aircraft.

    摘要翻译： 本发明提供了不含铬酸盐的涂料混合物和由这些混合物形成的涂层，其保护下面的铝或铝合金基材免受腐蚀。 涂层混合物包括选自有机聚合物组合物或溶胶凝胶的连续相，以及在整个连续相中分散或溶解的分布相。 分布相包括腐蚀抑制的无铬酸盐。 根据本发明，盐的混合物包括（1）选自（a）稀土金属如铈和草酸镧和乙酸盐的酯的第一盐，和（b）碱和碱土的钒酸盐 金属，如偏钒酸钠和偏钒酸钙; 和（2）作为碱土金属硼酸盐的第二盐，例如偏硼酸钡。 在某些实施方案中，本发明的涂层包括（a）和（b），与硼酸盐（2）结合。 在其它实施方案中，无铬酸盐是单独或与第一盐或第二盐组合的稀土金属或这种氯化物的混合物，或第一和第二盐两者。 本发明的涂层即使在经过3000小时的盐雾试验后也能对底层基材提供保护。 此外，涂层可以抵抗SKYDROL的降解，并且能够承受50英寸 - 磅（向前）和30英寸 - 磅（反向）的冲击，因此它们非常适合用作飞机的保护涂层。

    Chromate-free protective coatings
    2.
    发明授权
    Chromate-free protective coatings 失效

    公开(公告)号：US5866652A

    公开(公告)日：1999-02-02

    申请号：US607514

    申请日：1996-02-27

    申请人： Harold E. Hager ,  Chris J. Johnson ,  Kay Y. Blohowiak ,  Chun M. Wong ,  John H. Jones ,  S. Ray Taylor ,  Robert L. Cook, Jr.

    发明人： Harold E. Hager ,  Chris J. Johnson ,  Kay Y. Blohowiak ,  Chun M. Wong ,  John H. Jones ,  S. Ray Taylor ,  Robert L. Cook, Jr.

    IPC分类号： C23C22/56 ,  C09D5/08 ,  C08J3/38

    CPC分类号： C23C22/56 ,  C09D5/082 ,  C23C22/73 ,  C23C2222/20

    摘要： The invention provides chromate-free coating mixtures, and coatings formed from these mixtures, that protect an underlying aluminum or aluminum alloy substrate from corrosion. The coating mixtures include a continuous phase selected from organic polymeric compositions, or sol-gels, and a distributed phase, dispersed or dissolved throughout the continuous phase. The distributed phase includes the corrosion-inhibiting chromate-free salts. In accordance with the invention, the mixture of salts includes (1) a first salt selected from (a) the esters of rare earth metals, such as cerium and lanthanum oxalates and acetates, and (b) the vanadate salts of alkali and alkali earth metals, such as sodium metavanadate and calcium metavanadate; and (2) a second salt that is a borate salt of alkali earth metals, such as barium metaborate. In certain embodiments, the coatings of the invention include both (a), and (b), in conjunction with the borate salt (2). In other embodiments, the chromate free salt is a chloride of a rare earth metal, or mixture of such chlorides, either alone or in combination with the first salt or the second salt, or both the first and second salts. Coatings of the invention provide protection to an underlying substrate, even after subjection to a 3000 hour salt spray test. Moreover, the coatings are resistant to degradation by SKYDROL, and are able to withstand impacts of 50 inch-pounds (forward) and 30 inch-pounds (reverse), so that they are well suited for use as protective coatings for aircraft.

    Latent image stability using alkynylamines and iodide emulsions
    3.
    发明授权
    Latent image stability using alkynylamines and iodide emulsions 失效
    使用炔基胺和碘化物乳液潜在的图像稳定性

    公开(公告)号：US6124086A

    公开(公告)日：2000-09-26

    申请号：US232963

    申请日：1999-01-19

    申请人： Jon N. Eikenberry ,  Chris J. Johnson

    发明人： Jon N. Eikenberry ,  Chris J. Johnson

    IPC分类号： G03C1/035 ,  G03C1/34 ,  G03C7/392

    CPC分类号： G03C7/39296 ,  G03C1/34 ,  G03C1/035 ,  G03C7/39236 ,  G03C7/3924

    摘要： The invention relates to a photographic element wherein at least one layer comprises silver halide grains wherein said grains have a surface iodide of less than 0.6 mol percent, total grain iodide of about 1.0 to 10 mol percent, said iodide being introduced in the core of the grains, an alkynylamine compound of Formula I: ##STR1## wherein X represents oxygen, sulfur, selenium, or an unsubstituted or alkyl substituted nitrogen; R.sup.1 represents hydrogen or an alkyl of from 1 to 5 carbon atoms, and R.sup.2 represents hydrogen, or an alkyl, aryl, heteroaryl, carbocyclic or heterocyclic group, and R.sup.3 and R.sup.4 independently represent hydrogen, halogen, or a substituted or unsubstituted alkyl or alkoxy group, preferably one having fewer than 6 carbon atoms, and the reductone of Formula II ##STR2## wherein R.sub.1 and R.sub.2 are the same or different, and may represent H, alkyl, cycloalkyl, aryl, or an alkyl group with a solubilizing group such as --OH, sulfonamide, sulfamoyl, or carbamoyl, R.sub.1 and R.sub.2 may be joined to complete a heterocyclic ring, R.sub.4 and R.sub.5 are H, OH, alkyl, aryl, cycloalkyl, or may together represent an alkylidene group, n is 1 or 2 and R.sub.3 is H, alkyl, aryl, or CO.sub.2 R.sub.6 where R.sub.6 is alkyl, andwherein the logarithm of the partition coefficient for the reductone when equilibrated as a solute between n-octanol and water (logP) is less than 0.293.

    摘要翻译： 本发明涉及一种照相材料，其中至少一层包括卤化银颗粒，其中所述颗粒的表面碘化物小于0.6mol％，总颗粒碘化物为约1.0至10mol％，所述碘化物被引入到 谷物，式I的炔基胺化合物：其中X表示氧，硫，硒或未取代或烷基取代的氮; R1表示氢或1至5个碳原子的烷基，R2表示氢或烷基，芳基，杂芳基，碳环或杂环基，R3和R4独立地表示氢，卤素或取代或未取代的烷基或烷氧基 基团，优选具有少于6个碳原子的基团，和式II的还原酮，其中R 1和R 2相同或不同，并且可以表示H，烷基，环烷基，芳基或具有增溶基团的烷基，例如-OH ，磺酰胺，氨磺酰基或氨基甲酰基，R 1和R 2可以连接成完全杂环，R 4和R 5是H，OH，烷基，芳基，环烷基，或者可以一起代表亚烷基，n是1或2，R 3是 H，烷基，芳基或CO 2 R 6，其中R 6是烷基，并且其中当作为正辛醇和水之间的溶质平衡时的还原酮的分配系数的对数（logP）小于0.293。