公开(公告)号：US06689457B1

公开(公告)日：2004-02-10

申请号：US09959136

申请日：2001-10-17

申请人： David C. K. Chang ,  Monica A. Pickett ,  Debra Feldman Singer ,  Aleksandr Sorser ,  Debra Sue Strickland

发明人： David C. K. Chang ,  Monica A. Pickett ,  Debra Feldman Singer ,  Aleksandr Sorser ,  Debra Sue Strickland

IPC分类号： B05D138

CPC分类号： C09D5/24 ,  B05D1/04 ,  C09D5/002 ,  Y10T428/26

摘要： The present invention provides compositions comprising a graphite, binder precursor and low polarity solvent that upon hardening form layers of an electrically conductive material. The compositions of the present invention are sprayable by an internally charged electrostatic sprayer.

摘要翻译： 本发明提供了包含石墨，粘合剂前体和硬化形成导电材料层的低极性溶剂的组合物。 本发明的组合物可通过内部充电的静电喷雾器喷雾。

公开(公告)号：US4812506A

公开(公告)日：1989-03-14

申请号：US52495

申请日：1987-05-15

申请人： Thomas C. Gilmer ,  David C. K. Chang

发明人： Thomas C. Gilmer ,  David C. K. Chang

IPC分类号： C09D7/12 ,  C08K5/42 ,  C08L33/06 ,  C08L61/20 ,  C09D133/04 ,  C09D133/08 ,  C09D201/00 ,  C08L61/00

CPC分类号： C08K5/42 ,  C09D133/08 ,  C08L2205/02 ,  C08L33/06 ,  C08L61/20 ,  Y10T428/31627 ,  Y10T428/31688 ,  Y10T428/31692 ,  Y10T428/31855

摘要： A blocked acid catalyst of an aromatic sulfonic acid blocked with amino methyl propanol and coating compositions containing the blocked acid catalyst.

公开(公告)号：US4731290A

公开(公告)日：1988-03-15

申请号：US906195

申请日：1986-09-11

申请人： David C. K. Chang

发明人： David C. K. Chang

IPC分类号： B05D5/06 ,  B05D7/00 ,  B05D1/36 ,  B32B27/00

CPC分类号： B05D7/572 ,  B05D5/068 ,  Y10T428/264 ,  Y10T428/31855

摘要： An improved process for applying a multilayer finish on a primer coated substrate by using a guide coating composition that is applied over the primer of the substrate and then a water borne base coating composition containing metallic pigments and a clear coating composition are applied; before the base coating composition is applied, the guide coating composition is dried at ambient temperatures or at elevated temperatures but not fully cured or crosslinked; the guide coating contains a polymeric latex in an aqueous carrier, preferably an acrylic latex, and optionally, a crosslinking agent and metallic flake pigments; the process improves the appearance, particularly head-on-brightness of water borne basecoat/clear coat finishes in which the base coat contains metallic flake pigments.

摘要翻译： 通过使用施加在基材的底漆上的引导涂料组合物，然后加入含有金属颜料和透明涂料组合物的水性基础涂料组合物，涂覆在底漆涂布的基材上施加多层涂层的改进方法; 在涂覆基础涂料组合物之前，引导涂料组合物在环境温度或升高的温度下干燥，但未完全固化或交联; 引导涂层在水性载体，优选丙烯酸胶乳中，以及任选的交联剂和金属片状颜料中含有聚合物胶乳; 该工艺改善了底漆包含金属薄片颜料的水性底漆/透明涂层表面的外观，特别是亮度。

公开(公告)号：US5104922A

公开(公告)日：1992-04-14

申请号：US606077

申请日：1990-10-22

申请人： David C. K. Chang

发明人： David C. K. Chang

IPC分类号： C08L61/20 ,  C09D5/38 ,  C09D17/00 ,  C09D133/06 ,  C09D143/02

CPC分类号： C09D133/062 ,  C09D143/02 ,  C09D17/006 ,  C09D5/38 ,  C08L61/20

摘要： A stable waterborne high solids metallic flake pigment dispersion containing an aqueous carrier, film forming binder and metallic flake pigment and having a solids content of about 40-90% by weight; wherein the film forming polymer is a phosphated acrylic polymer neutralized with ammonia or a primary, secondary or tertiary amine and contains metallic flake pigments in a pigment to binder weight ratio of about 30/100-1000/100 and is non-reactive with the binder and the dispersion has a pH of about 7-9.

摘要翻译： 一种稳定的水性高固体金属薄片颜料分散体，含有水性载体，成膜粘合剂和金属薄片颜料，固体含量约为40-90％（重量）; 其中所述成膜聚合物是用氨或伯，仲胺或叔胺中和的磷酸化丙烯酸聚合物，并且包含颜料与粘合剂重量比为约30 / 100-1000 / 100的金属片状颜料，并且与粘合剂不反应 并且分散体具有约7-9的pH。

公开(公告)号：US5100735A

公开(公告)日：1992-03-31

申请号：US557084

申请日：1990-07-25

申请人： David C. K. Chang

发明人： David C. K. Chang

IPC分类号： B05D7/00 ,  C08L61/32 ,  C09D133/06

CPC分类号： B05D7/534 ,  C09D133/066 ,  B05D2451/00 ,  B05D2502/00 ,  B05D2504/00 ,  B05D2508/00 ,  C08L61/32 ,  Y10T428/264 ,  Y10T428/2982 ,  Y10T428/31692 ,  Y10T428/31862 ,  Y10T428/31909 ,  Y10T428/31928 ,  Y10T428/31935

摘要： An improved process for forming a multilayer finish on a substrate by applying a layer of a waterborne basecoating composition to the substrate, at least partially drying the coating, applying a layer of a solvent based high solids clear coating to the basecoating and curing the coatings; the improvement that is used therewith is as follows:A. a waterborne basecoating composition that has a film forming binder of an acrylic polymer neutralized with ammonia, a primary amine or a secondary amine without the presence of a tertiary amine a water dispersible or water dilutable alkylated melamine formaldehyde resin and the composition contains pigments in a pigment to binder weight ratio of about 0.5/100 to 200/100;B. a high solids solvent based clear coating composition having a film forming binder of an acrylic polymer, a polyester or a polyesterurethane and an alkylated melamine formaldehyde crosslinking agent and about 0.1-5% by weight, based on the weight of the binder, of a strong acid catalyst;wherein the basecoating composition and the clear coating composition are cured at about 100.degree.-180.degree. C. to form a glossy wrinkle free finish having an automotive quality appearance.

摘要翻译： 一种改进的方法，用于通过将一层水性底涂层组合物施加到基底上，至少部分地干燥该涂层，将一层基于溶剂的高固体透明涂层施加到基底涂层和固化涂层上来在基底上形成多层涂层; 其使用的改进如下：A.水性底漆组合物，其具有用氨中和的丙烯酸类聚合物的成膜粘合剂，伯胺或仲胺，不存在叔胺，水分散或水可稀释 烷基化三聚氰胺甲醛树脂，组合物含有颜料与粘合剂的重量比为约0.5 / 100〜200/100的颜料; B.具有丙烯酸聚合物，聚酯或聚酯氨酯和烷基化三聚氰胺甲醛交联剂的成膜粘合剂的高固体溶剂型透明涂料组合物，基于粘合剂重量计约0.1-5％重量 强酸催化剂; 其中所述底漆组合物和所述透明涂料组合物在约100-180℃下固化以形成具有汽车质量外观的光泽无皱纹。