公开(公告)号：US08038829B2

公开(公告)日：2011-10-18

申请号：US12278317

申请日：2007-02-22

申请人： Robert E. Steele ,  Dennis T. H. Wong ,  Peter Singh ,  Chunglee Hank Yih

发明人： Robert E. Steele ,  Dennis T. H. Wong ,  Peter Singh ,  Chunglee Hank Yih

IPC分类号： B29C65/00 ,  B29C47/00 ,  B29C65/10 ,  B32B17/10 ,  B32B37/00 ,  B32B38/00 ,  B24D11/00 ,  B05D1/12 ,  B05D1/36 ,  B05D7/00 ,  B05D3/02 ,  B05D1/02 ,  B05D3/00 ,  B05D3/12 ,  B05D1/34 ,  C09J5/02

CPC分类号： B05D7/148 ,  B05D1/06 ,  B05D7/146 ,  B05D7/58 ,  B05D2451/00 ,  F16L58/1072 ,  F16L58/109 ,  B05D2401/32

摘要： Method of coating pipe having a raised weld bead. Curable resin polymer is applied to the pipe and allowed to bond to form a cured or partially cured polymer layer on the pipe. Powder form adhesive composition is applied on the polymer layer while hot, with fusion into a film bonding to the polymer. Powder form polyolefin is applied to the adhesive while hot with fusion into a film bonding to the adhesive to form a powder-based coating. Following forming of the powder-based coating, the pipe is cooled from the inside. An outer polyolefin covering is bonded to the powder-based coating and the pipe cooled to ambient temperature. This procedure can avoid voids, cavities or pinholes forming in the coating adjacent the weld bead.

摘要翻译： 涂层焊管的方法 将可固化的树脂聚合物施加到管上并允许粘合以在管上形成固化或部分固化的聚合物层。 粉末形式的粘合剂组合物在热的同时在聚合物层上施加，熔融成与聚合物结合的膜。 粉末形式聚烯烃在热熔融时粘合到粘合剂上的膜上以形成粉末状涂层。 在形成粉末状涂层之后，从内部冷却管。 外部聚烯烃覆盖层结合到粉末基涂层上，并将管冷却至环境温度。 该过程可以避免邻近焊缝的涂层中形成的空隙，空腔或针孔。

公开(公告)号：US20110152408A1

公开(公告)日：2011-06-23

申请号：US12995040

申请日：2009-05-28

申请人： Nicolas Cunningham ,  Stephen J. Edmondson ,  Dennis T. H. Wong

发明人： Nicolas Cunningham ,  Stephen J. Edmondson ,  Dennis T. H. Wong

IPC分类号： C09D163/00 ,  B05D3/00 ,  C09D123/26 ,  C09D115/00

CPC分类号： C09D151/06 ,  C08L23/02 ,  C08L23/04 ,  C08L23/10 ,  C08L51/06 ,  C08L2666/02 ,  C09D151/04 ,  C09D163/00 ,  C09J123/02 ,  C08L2666/24

摘要： Coating composition includes curable epoxy resin in solid form, curing agent for the epoxy resin, and filler. Further, there is a polyolefin containing component having a compatibilizer polymer that is a modified polyolefin, a mixture of a polyolefin or olefin copolymer with a functionalized rubber, or both. The modified polyolefin and functionalized rubber contain groups reactive with either the epoxy resin or the epoxy curing agent. A polyolefin-based portion that amounts to at least 50% by weight of the polyolefin containing component, and an epoxy-based portion that amounts to at least 50% by weight of the curable epoxy resin have viscosities such that the difference between the viscosity of the polyolefin-based portion and the viscosity of the epoxy-based portion, expressed as a percentage based on the lower of the two viscosities, is less than 40%. These viscosities are measured by ASTM D4440 at the Vicat softening points, as measured by ASTM D 1525.

摘要翻译： 涂料组合物包括固体形式的可固化环氧树脂，环氧树脂固化剂和填料。 此外，存在具有改性聚烯烃的增容剂聚合物，聚烯烃或烯烃共聚物与官能化橡胶的混合物或两者的含聚烯烃的组分。 改性聚烯烃和官能化橡胶含有与环氧树脂或环氧固化剂反应的基团。 相当于含聚烯烃成分的至少50重量％的聚烯烃部分和相当于可固化环氧树脂的至少50重量％的环氧基部分，其粘度使得粘度 基于聚烯烃的部分和基于两个粘度中较低的百分比表示的环氧基部分的粘度小于40％。 这些粘度通过ASTM D4440在维卡软化点测量，如通过ASTM D 1525测量的。