公开(公告)号：US06221441B1

公开(公告)日：2001-04-24

申请号：US09320264

申请日：1999-05-26

Applicant: Donaldson J. Emch

Inventor： Donaldson J. Emch

IPC: B05D304

CPC classification number: B05D7/52 ,  B05D3/0209 ,  B05D3/0263 ,  B05D3/0413 ,  F26B3/283

Abstract: Processes for coating metal or polymeric substrates are provided which include the steps of: (a) applying a liquid basecoating composition to a surface of the substrate; (b) exposing the basecoating composition to air having a temperature ranging from about 10° C. to about 50° C. for a period of at least about 5 minutes to volatilize at least a portion of volatile material from the liquid basecoating composition, the velocity of the air at a surface of the basecoating composition being less than about 0.5 meters per second; (c) applying infrared radiation and hot air simultaneously to the basecoating composition for a period of at least about 2 minutes, the velocity of the air at the surface of the basecoating composition being less than about 4 meters per second, the temperature of the metal substrate being increased at a rate ranging from about 0.4° C. per second to about 1.2° C. per second to achieve a peak substrate temperature ranging from about 120° C. to about 165° C., such that a dried basecoat is formed upon the surface of the substrate; and (d) applying a powder topcoating composition over the dried basecoat.

Abstract translation: 提供用于涂覆金属或聚合物基材的方法，其包括以下步骤：（a）将液体底漆组合物施加到基材的表面; （b）将底涂层组合物暴露于温度范围为约10℃至约50℃的空气中至少约5分钟的时间以挥发至少一部分来自液体底漆组合物的挥发性物质， 底漆组合物表面的空气速度小于约0.5米/秒; （c）将红外辐射和热空气同时施加至底漆组合物至少约2分钟的时间，底漆组合物表面的空气速度小于约4米/秒，金属的温度 底物以约0.4℃/秒至约1.2℃/秒的速率增加，以达到约120℃至约165℃的峰值底物温度，使得形成干燥的底漆 在基板的表面上; 和（d）在干燥的底漆上涂覆粉末涂料组合物。

公开(公告)号：US6113764A

公开(公告)日：2000-09-05

申请号：US320483

申请日：1999-05-26

Applicant: Donaldson J. Emch

Inventor： Donaldson J. Emch

IPC: B05D1/00 ,  B05D3/02 ,  B05D3/04 ,  C25D13/22 ,  C25D15/00

CPC classification number: C25D13/22 ,  B05D3/0209 ,  B05D1/007 ,  B05D3/0263 ,  B05D3/0413

Abstract: A process for drying a liquid electrodeposited coating composition applied to a metal substrate is provided. Infrared radiation and warm air are applied simultaneously to the electrodeposited coating composition for a period of at least about 1 minute, the velocity of the air at the surface of the electrodeposited coating composition being less than about 4 meters per second. The temperature of the metal substrate is increased at a rate ranging from about 0.25.degree. C. per second to about 2.degree. C. per second to achieve a peak metal temperature of the substrate ranging from about 35.degree. C. to about 140.degree. C. Infrared radiation and hot air are applied simultaneously to the electrodeposited coating composition for a period of at least about 2 minutes, during which the temperature of the metal substrate is increased at a rate ranging from about 0.2.degree. C. per second to about 1.5.degree. C. per second to achieve a peak metal temperature ranging from about 160.degree. C. to about 215.degree. C., such that a dried electrodeposited coating is formed upon the surface of the metal substrate.

Abstract translation: 提供了一种用于干燥施加到金属基底上的液体电沉积涂料组合物的方法。 将红外辐射和暖空气同时施加到电沉积涂料组合物至少约1分钟的时间，电沉积涂料组合物表面的空气速度小于约4米/秒。 金属基材的温度以约0.25℃/秒至约2℃/秒的速率增加，以达到基材的峰值金属温度范围为约35℃至约140℃。 将红外辐射和热空气同时施加到电沉积涂料组合物至少约2分钟的时间，在此期间金属基材的温度以约0.2℃/秒至约1.5℃的速率增加 以达到约160℃至约215℃的峰值金属温度，使得在金属基材的表面上形成干燥的电沉积涂层。

公开(公告)号：US5980993A

公开(公告)日：1999-11-09

申请号：US74919

申请日：1998-05-08

Applicant: George W. Mauer ,  Donaldson J. Emch ,  Roxalana L. Martin ,  Edward R. Coleridge

Inventor： George W. Mauer ,  Donaldson J. Emch ,  Roxalana L. Martin ,  Edward R. Coleridge

IPC: B05B5/16 ,  B05B9/00 ,  B05B13/04 ,  B05D1/02 ,  B05D7/00 ,  B05D1/36 ,  B05D3/02 ,  B05D7/26

CPC classification number: B05D7/53 ,  B05B13/0452 ,  B05D1/02 ,  B05B5/16 ,  B05B9/002

Abstract: A method of applying a color-plus-clear composite coating to a substrate is provided comprising: applying to the substrate a colored film-forming composition to form a base coat and applying to the base coat a clear film-forming composition to form a transparent top coat over the base coat. Prior to application to the base coat, the clear film-forming composition is heated to a temperature and for a time sufficient to lower its viscosity such that the composition can be atomized and applied as a smooth continuous film. At a temperature of 20-25.degree. C., the clear film-forming composition has a high viscosity such that it cannot be atomized and applied as a smooth continuous film. The clear film-forming composition comprises (1) about 65 to about 85 percent by weight, based on the total weight of resin solids in the clear film-forming composition, of a hydroxyl functional acrylic polymer having a weight average molecular weight of about 5000 to about 25,000 as determined by gel permeation chromatography using a polystyrene standard, and having a glass transition temperature of at least about 10.degree. C.; and (2) about 15 to about 35 percent by weight, based on the total weight of resin solids in the clear film-forming composition, of an aminoplast crosslinking agent.

Abstract translation: 提供了一种将颜色加透明的复合涂层施加到基底上的方法，其包括：向所述基底施加着色成膜组合物以形成底涂层，并向所述底涂层施加透明成膜组合物以形成透明 底漆上的外套。 在涂布到底涂层之前，将透明成膜组合物加热到足以降低其粘度的温度和时间，使得组合物可以被雾化并作为平滑连续膜施加。 在20-25℃的温度下，透明成膜组合物具有高粘度，使其不能被雾化并作为光滑连续膜施加。 透明成膜组合物包含（1）约65至约85重量％，基于透明成膜组合物中树脂固体的总重量，重均分子量为约5000的羟基官能丙烯酸类聚合物 至约25,000，通过使用聚苯乙烯标准品的凝胶渗透色谱测定，玻璃化转变温度为至少约10℃。 和（2）基于透明成膜组合物中的树脂固体的总重量为约15至约35重量％的氨基塑料交联剂。