公开(公告)号：EP0007230A2

公开(公告)日：1980-01-23

申请号：EP79301368.1

申请日：1979-07-11

Applicant: REED INTERNATIONAL P.L.C.

Inventor： Canning, Rodger George ,  Tomlinson, John Parker

IPC: D06N7/00 ,  C08J9/10 ,  B29D27/00 ,  B44C3/04

CPC classification number: C08J9/10 ,  C08J2327/06 ,  D06N3/0065 ,  D06N3/0077 ,  D06N7/0018

Abstract: Afoamplasticssheetmaterial,suchasforawsllcovering, comprising a substrate web (10), a sacrificed foam coating (11) and a foamed coating (12) having macroscopic (0,5 to 2 mm)voids (13) below the foamed coating (12). The voids (13) create a blister effect (15) with many deep and steep valleys (14).
Two processes are described. In one process (Figs. IA- D) the sacrificed foam coating (11) is foamed first, the foamed coating (12) in its unfoamed state is then applied and the material so formed is heated to sacrifice the coating (11) and foam the coating (12). In another process (Figs. 2A - C) both coatings are applied together in their unfoamed state but the coating (11) is selected to foam at a lower temperature than the coating (12). When heated, the coating (11) is foamed and then sacrificed whilst the coating (12) foams and blisters.

Abstract translation: 包括基底网（10），牺牲泡沫涂层（11）和泡沫涂层（12）下方具有宏观（0.5至2mm）空隙（13）的泡沫涂层（12）的具有泡沫层的材料。 空隙（13）与许多深陡的谷（14）形成起泡效应（15）。 描述了两个过程。 在一个过程中（图1A-D），首先使牺牲的泡沫涂层（11）发泡，然后施加处于其未发泡状态的泡沫涂层（12），并且如此形成的材料被加热以牺牲涂层（11） 涂层（12）。 在另一种方法中（图2A-C），两种涂料以其未发泡状态一起施用，但选择涂层（11）以在比涂层（12）更低的温度下发泡。 当加热时，涂层（11）发泡，然后牺牲，而涂层（12）起泡和起泡。