公开(公告)号：WO2006125087A3

公开(公告)日：2007-11-01

申请号：PCT/US2006019248

申请日：2006-05-18

Applicant: PETOSKEY PLASTICS INC ,  CHAPMAN GRAHAM M

Inventor： CHAPMAN GRAHAM M

IPC: B32B5/22

CPC classification number: B32B27/08 ,  B05D1/322 ,  B32B7/02 ,  B32B27/32 ,  Y10T156/10 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/251 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/269

Abstract: A co-extruded plastic film comprises an outer layer (12) formed of a polymer or co-polymer having a high surface energy, such as corona treated high density polyethylene; a core layer (14) preferably formed of a polyolefin, which can included a foamed polymer preferably formed by an exothermic blowing agent; and an inner layer (16) that includes a filler of sufficiently large particle size and in an sufficiently large amount that water vapor can escape laterally from under the film. The inner layer can also include a desiccant and be embossed. This film allows vapors to disperse and can also be moisture absorbent and vapor permeable. The film also has the benefit that one surface has high paint adherence and the opposite surface clings to a substrate, typically a painted metal or simple metal surface.

Abstract translation: 共挤塑料膜包括由具有高表面能的聚合物或共聚物形成的外层（12），例如经电晕处理的高密度聚乙烯; 优选由聚烯烃形成的芯层（14），其可以包括优选由放热发泡剂形成的发泡聚合物; 以及内层（16），其包括足够大的粒度的填料，并且足够大的量使得水蒸气可以从膜下方横向逸出。 内层还可以包括干燥剂并被压花。 该膜允许蒸气分散并且也可以是吸湿性和透气性的。 该膜还具有以下优点：一个表面具有高涂料粘附性，并且相对表面粘附于基底，通常为涂漆的金属或简单的金属表面。