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公开(公告)号：EP1828321A1
公开(公告)日：2007-09-05
申请号：EP05854988.2
申请日：2005-12-16
IPC分类号： C09D5/03
CPC分类号： C08J3/28 , C09D5/03 , Y10T428/25
摘要： The invention relates to a process of preparation of a powder coating composition providing a desired gloss level of the resulted coatings comprising the following steps of: a) providing particles of a powder coating composition having a number average particle size in the range of 1 to 300 µm, b) irradiating the particles with high energy radiation under near-ambient temperature, and c) discharging the irradiated particles of the powder coating composition; the process according to the invention provides powder coating compositions producing a desired gloss level of the coatings by varying the time period and the intensity of the UV-irradiation of the powder coating particles in step b).
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2.发明公开PULSED HEATING PROCESS FOR CURING SUBSTRATES WITH NEAR INFRARED RADIATION 审中-公开脉冲加热过程固化SUBSTRATES辐射在中间红外
公开(公告)号：EP1747069A1
公开(公告)日：2007-01-31
申请号：EP05749476.7
申请日：2005-05-11
IPC分类号： B05D3/02
CPC分类号： B05D3/0263 , B05D3/0209 , C22C1/06
摘要： The present invention is directed to a process for coating a surface of a substrate with a powder coating composition and forming a smooth film thereon; wherein the process comprises: applying a powder coating composition to a surface of a substrate; melting and curing the powder coating composition, wherein pulsed NIR radiation is used to perform said melting and curing of the powder coating composition, the NIR radiation being provided by an NIR radiation emitter and the pulsed NIR radiation comprising the steps of: a) applying heat by NIR radiation at 20-50 % NIR radiation emitter power to the surface of the substrate coated with the powder coating composition for a sufficient time to at least partially adhere the powder coating to the surface of the substrate; and then b) removing the heat for a period of time to allow the powder coating to at least partially coalesce and adhere to the surface of the substrate; and then c) applying said heat by NIR radiation at 80-100 % NIR radiation emitter power to the surface of the substrate to form a smooth cured film thereon.
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公开(公告)号：EP1419205B1
公开(公告)日：2007-01-10
申请号：EP02739860.1
申请日：2002-06-07
IPC分类号： C09D5/03 , C09D175/16 , C08G65/332 , C09D171/02
CPC分类号： C09D175/16 , C08K7/16 , C08K9/02 , C08K9/06 , C08L33/062 , C08L71/02 , C09D5/032 , C09D7/42 , C09D167/06 , C09D171/02 , C08L63/00 , C08L2666/04
摘要： The present invention is directed to a powder coating composition that produces a low gloss coating upon cure. The powder coating composition includes one or more crosslinkable base polymer, a crosslinkable acrylic polymer and one or more free radical initiators. By adding spheroidal particles to the powder coating composition further reduction in gloss can be obtained while improving smoothness. These compositions are well suited to produce coatings on metallic substrates, such as automotive bodies and non-metallic substrates, such as reconstituted wood substrates, used for desk or table tops.
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公开(公告)号：EP1419205A1
公开(公告)日：2004-05-19
申请号：EP02739860.1
申请日：2002-06-07
IPC分类号： C09D5/03 , C09D175/16 , C08G65/332 , C09D171/02
CPC分类号： C09D175/16 , C08K7/16 , C08K9/02 , C08K9/06 , C08L33/062 , C08L71/02 , C09D5/032 , C09D7/42 , C09D167/06 , C09D171/02 , C08L63/00 , C08L2666/04
摘要： The present invention is directed to a powder coating composition that produces a low gloss coating upon cure. The powder coating composition includes one or more crosslinkable base polymer, a crosslinkable acrylic polymer and one or more free radical initiators. By adding spheroidal particles to the powder coating composition further reduction in gloss can be obtained while improving smoothness. These compositions are well suited to produce coatings on metallic substrates, such as automotive bodies and non-metallic substrates, such as reconstituted wood substrates, used for desk or table tops.
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公开(公告)号：EP1828321B1
公开(公告)日：2009-03-25
申请号：EP05854988.2
申请日：2005-12-16
IPC分类号： C09D5/03
CPC分类号： C08J3/28 , C09D5/03 , Y10T428/25
摘要： The invention relates to a process of preparation of a powder coating composition providing a desired gloss level of the resulted coatings comprising the following steps of: a) providing particles of a powder coating composition having a number average particle size in the range of 1 to 300 µm, b) irradiating the particles with high energy radiation under near-ambient temperature, and c) discharging the irradiated particles of the powder coating composition; the process according to the invention provides powder coating compositions producing a desired gloss level of the coatings by varying the time period and the intensity of the UV-irradiation of the powder coating particles in step b).
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公开(公告)号：EP2027175A1
公开(公告)日：2009-02-25
申请号：EP07796120.9
申请日：2007-06-12
IPC分类号： C08G59/30 , C09D163/00
CPC分类号： C08G59/30 , C08G59/226 , C08G59/621 , C09D5/03 , C09D163/00
摘要： The present invention provides an epoxy powder coating composition comprising an intimate mixture comprising (A) 5 to 99 wt % of at least one bromine functionalized epoxy resin with a bromine content of 5 to 60 % based on component (A), (B) 0.5 to 40 wt % of at least one epoxy curing agent, and (C) 0.01 to 55 wt % of at least one pigment, filler and/or coating additive, the wt % based on the total weight of the powder coating composition. The powder coating composition of this invention provides coating with a high glass transition temperature and acceptable flexibility when coated on metallic or plastic substrates, particularly metallic and plastics pipelines. The coatings may have an improved adhesion under hot and humid conditions as well as an optimum short and long term high temperature and humidity cathodic disbondment protection.
摘要翻译： 本发明提供了一种环氧粉末涂料组合物，其包含紧密混合物，该组合物包含（A）5-99wt％的至少一种溴官能化环氧树脂，其中溴组分含量为5-60wt％，（B）0.5 至40重量％的至少一种环氧固化剂，和（C）0.01至55重量％的至少一种颜料，填料和/或涂料添加剂，所述重量％基于所述粉末涂料组合物的总重量。 本发明的粉末涂料组合物提供了当涂覆在金属或塑料基材上，特别是金属和塑料管道上时具有高玻璃化转变温度和可接受的柔韧性的涂层。 该涂层可以在热和潮湿条件下具有改进的粘附性以及最佳的短期和长期高温和高湿阴极剥离保护。
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公开(公告)号：EP1838790B1
公开(公告)日：2008-11-12
申请号：EP05854991.6
申请日：2005-12-16
IPC分类号： C09D5/03
CPC分类号： C09D5/032 , C09D5/031 , Y10T428/31504
摘要： The invention relates to a process of preparation of powder coating compositions providing a desired gloss level of the resulted coatings comprising the following steps of a) providing particles of at least one powder coating composition having a number average particle size in the range of 1 to 300 µm, and b) mixing these particles with particles of at least one powder coating composition having a number average particle size in the range of 1 to 300 µm, the particles of which are irradiated with high energy radiation under near-ambient temperature, in a mixing ratio of 1 : 99 to 99 : 1; the process according to the invention provides powder coating compositions producing a desired gloss level of the coatings by varying the time period and/or the intensity of the high energy irradiation of the powder coating particles or by varying the mixing ratio between the non-irradiated powder particles and the irradiated powder particles.
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