公开(公告)号：US06228476B1

公开(公告)日：2001-05-08

申请号：US09183892

申请日：1998-10-30

申请人： Blake Boyd Bogrett ,  Monroe William Shumate ,  Royce Michael Feagans

发明人： Blake Boyd Bogrett ,  Monroe William Shumate ,  Royce Michael Feagans

IPC分类号： B32B306

CPC分类号： C08J9/365 ,  C08J2205/05 ,  Y10T428/249955 ,  Y10T428/24996 ,  Y10T428/249981

摘要： A foam insulation sheet has a major surface, such as the interior surface of a duct liner over which gases flow within a duct, coated with a relatively smooth, tough elastomeric coating of substantially uniform thickness. Preferably, the coating has a tough skin and penetrates into interstices of the major surface of the foam sheet to firmly bond the elastomeric coating to the foam sheet. One method of forming the tough skin on the coating includes contacting a frothed aqueous cross-linkable acrylic latex emulsion, applied to the major surface of the foam sheet, with a hot ironing surface to dewater an exposed surface of the frothed emulsion, to free bubbles from the exposed surface of the frothed emulsion at the exposed surface of the frothed emulsion, prior to curing the remainder of the frothed aqueous cross-linkable acrylic latex emulsion.

摘要翻译： 泡沫绝缘片具有主表面，例如管道衬里的内表面，气体在管道内流动，涂覆有基本上均匀厚度的相对光滑，坚韧的弹性体涂层。 优选地，涂层具有坚韧的皮肤并渗透到泡沫片的主表面的间隙中以将弹性体涂层牢固地结合到泡沫片上。 在涂层上形成韧性皮肤的一种方法包括将施加到泡沫片的主表面上的发泡的水可交联的丙烯酸胶乳乳液与热熨烫表面接触，以将已发泡的乳液的暴露表面脱水到游离气泡 在固化剩余的发泡的含水可交联的丙烯酸胶乳乳液之前，在发泡的乳液的暴露表面上从发泡的乳液的暴露表面。