公开(公告)号：US5965213A

公开(公告)日：1999-10-12

申请号：US930160

申请日：1998-02-02

申请人： Lawrence Sacharski ,  Joachim Woltering ,  Peter Clark ,  Heinrich Wonnemann

发明人： Lawrence Sacharski ,  Joachim Woltering ,  Peter Clark ,  Heinrich Wonnemann

IPC分类号： C08G59/32 ,  C08G59/42 ,  B05D1/04 ,  C08K5/092 ,  C08K5/205

CPC分类号： C08G59/4207 ,  C08G59/3209 ,  Y10S524/902 ,  Y10S524/904 ,  Y10S525/934 ,  Y10S526/932

摘要： Disclosed is an aqueous dispersion of a transparent powder coating consisting of a solid powder component and an aqueous component. The solid powder component includes at least one epoxy group-containing binder, at least one crosslinking agent, and optionally catalysts, adjuvants, or additives typical for transparent powder coatings. The binder contains 30-45% glycidyl-containing monomers and optionally vinylaromatic compounds such as styrene. The crosslinking agent is preferably a straight-chain aliphatic dicarboxylic acid and/or a carboxy-functional polyester. The aqueous component includes at least one nonionic thickener and optional materials such as catalysts, adjuvants, and/or other such materials. The nonionic thickener is preferably a nonionic associative thickener. The invention also provides a process for preparing the aqueous dispersion of the invention and a process for coating a vehicle body with the aqueous dispersion of the invention.

摘要翻译： PCT No.PCT / EP96 / 01480 Sec。 371日期1998年2月2日 102（e）1998年2月2日PCT 1996年4月4日PCT PCT。 第WO96 / 32452号公报 日期1996年10月17日公开是由固体粉末组分和水性组分组成的透明粉末涂料的水分散体。 固体粉末组分包括至少一种含环氧基的粘合剂，至少一种交联剂，以及任选的催化剂，助剂或通常用于透明粉末涂料的添加剂。 粘合剂含有30-45％的含缩水甘油基的单体和任选的乙烯基芳族化合物如苯乙烯。 交联剂优选为直链脂族二羧酸和/或羧基官能聚酯。 含水组分包括至少一种非离子增稠剂和任选的材料，例如催化剂，助剂和/或其它这样的材料。 非离子增稠剂优选为非离子缔合增稠剂。 本发明还提供了制备本发明的水性分散体的方法和用本发明的水性分散体涂布车体的方法。

公开(公告)号：US06360974B1

公开(公告)日：2002-03-26

申请号：US09314404

申请日：1999-05-19

申请人： Lawrence Sacharski ,  Michael A. Gessner

发明人： Lawrence Sacharski ,  Michael A. Gessner

IPC分类号： B02C1912

CPC分类号： C09D5/02

摘要： A powder slurry coating composition is prepared by adding individual particulate materials including at least one resin powder to an aqueous medium and then milling the dispersed particulate materials to produce a median particle size of up to about 15 microns. The powder slurry coating composition is used to prepare a coating on a substrate. The coating is equivalent to coatings obtained from powder slurry coating compositions in which the powder is produced by melt mixing in an extruder and grinding the extrudate.

摘要翻译： 通过将包含至少一种树脂粉末的各种颗粒材料加入到水性介质中，然后研磨分散的颗粒材料以产生高达约15微米的中值粒度来制备粉末浆料涂料组合物。 粉末浆料涂料组合物用于在基材上制备涂层。 涂层相当于从粉末浆料涂料组合物获得的涂料，其中通过在挤出机中熔融混合并研磨挤出物来制备粉末。

公开(公告)号：US5714264A

公开(公告)日：1998-02-03

申请号：US544688

申请日：1995-10-18

申请人： Lawrence Sacharski ,  Peter D. Clark ,  Joachim Woltering

发明人： Lawrence Sacharski ,  Peter D. Clark ,  Joachim Woltering

IPC分类号： B05D7/16 ,  C08G59/18 ,  C08G59/62 ,  C09D163/00 ,  C09D167/00 ,  B32B27/38 ,  B05D3/02

CPC分类号： C09D167/00 ,  B05D7/16 ,  C08G59/182 ,  C08G59/621 ,  C09D163/00 ,  Y10T428/31511 ,  Y10T428/31529 ,  Y10T428/31786

摘要： The present invention relates to an aqueous powder coating dispersion based on epoxy resins and phenolic curing agents or carboxyl-containing polyesters for the coating of packaging containers, which dispersion consists of a solid, pulverulent component I and an aqueous component II, component I being a powder coating which contains A) at least one epoxy resin having an epoxide equivalent weight of from 300 to 5500 and B) at least one curing agent having more than one phenolic hydroxyl group per molecule and a hydroxyl equivalent weight, based on phenolic OH groups, of from 100 to 500, preferably from 200 to 300, or C) at least one polyester having an acid number of from 25 to 120 mg of KOH/g and an OH number >10 mg of KOH/g, and D) at least one epoxy resin having an epoxide equivalent weight of from 400 to 3000, and component II being the aqueous component of the dispersion which contains at least one nonionic or anionic thickener.

摘要翻译： 本发明涉及一种基于环氧树脂和酚类固化剂或用于包装容器涂层的含羧基聚酯的水性粉末涂料分散体，该分散体由固体，粉状组分I和水性组分II组成，组分I为 粉末涂料，其包含A）至少一种环氧当量为300至5500的环氧树脂，以及B）基于酚OH基团，每分子具有多于一个酚羟基的至少一种固化剂和羟基当量， 100至500，优选200至300，或C）至少一种酸值为25至120mg KOH / g和OH值> 10mg KOH / g的聚酯，以及D）至少 一种环氧树脂，其环氧当量为400至3000，组分II为含有至少一种非离子或阴离子增稠剂的分散体的水性组分。

公开(公告)号：US20080003368A1

公开(公告)日：2008-01-03

申请号：US11762998

申请日：2007-06-14

申请人： Timothy December ,  Lawrence Sacharski ,  Cynthia Stants

发明人： Timothy December ,  Lawrence Sacharski ,  Cynthia Stants

IPC分类号： B05D3/02 ,  C09D163/00

CPC分类号： C09D5/03 ,  C08G59/226 ,  C08G59/24 ,  C08L33/08 ,  C08L67/02 ,  C09D163/00 ,  C08L2666/02

摘要： The invention provides powder coatings having at least 25% by weight of an epoxy functional particulate component (a) having a Tg of at least 50° C. and of the structure: wherein n is a number from 0 to 15, and R1 is selected from the group consisting of linear, branched or cycloaliphatic C2-C20 alkyl groups and mixtures thereof, based on the total weight of all epoxy functional particulate components in the powder coating composition. The powder-coating compositions of the invention are suitable for use as primers over electrocoat and under composite basecoat/clearcoat systems. Powder primers of the invention provide simultaneous improvements in yellowing, chip resistance, UV durability and color stability.

摘要翻译： 本发明提供粉末涂料，其具有至少25重量％的T a至少为50℃的环氧官能颗粒组分（a），其结构如下：其中n为 0至15，并且R 1选自直链，支链或脂环族C 2 -C 20烷基及其混合物 ，基于粉末涂料组合物中所有环氧官能颗粒组分的总重量。 本发明的粉末涂料组合物适用于电涂层和复合底漆/透明涂料体系下的引物。 本发明的粉末底漆同时提供黄变，耐芯片性，UV耐久性和颜色稳定性。