公开(公告)号：WO2005000065A1

公开(公告)日：2005-01-06

申请号：PCT/US2004/017230

申请日：2004-05-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： SETH, Jayshree ,  HAAS, Christopher, K. ,  SURA, Ravi K., ,  GRAHAM, Katherine, A., S. ,  VENNE, Janet, A.,

IPC: A44B18/00

CPC classification number: B29C44/356 ,  A44B18/0049 ,  A44B18/0061 ,  A44B18/0092 ,  A61F13/0273 ,  A61F13/625 ,  B29C44/00 ,  Y10T428/24008 ,  Y10T428/24017 ,  Y10T428/249976 ,  Y10T428/249977 ,  Y10T428/249979 ,  Y10T428/249981

Abstract: The invention is directed in part to an article that includes a polymer foam having a surface with surface microstructures(14), the surface microstructures have at least one extent or dimension of about 10 microns or more, preferably 50 microns or more. A maximum extent (unless it is a continuous rib-like structure) the microstructure is about 300 microns or less, preferably 200 microns or less, and generally a maximum height of 1000 microns or less, preferably 750 microns or less and a minimum height of 200 microns or more, preferably 300 microns or more. The foamed article may be provided in a variety of shapes, including a rod, a cylinder, a sheet, etc. In a preferred embodiment where the foam is provided in the form of a sheet, the foam has a pair of major surfaces, one or both of which can be provided with surface microstructures. The foam backing and microstructures include a plurality of voids, which voids a re preferably of a mean size substantially less than the smallest cross-sectional dimension or extent of the microstructures.

Abstract translation: 本发明部分地涉及包括具有表面微结构（14）的表面的聚合物泡沫的制品，所述表面微结构具有至少一个程度或尺寸为约10微米或更大，优选为50微米或更大。 微观结构的最大程度（除非是连续的肋状结构）为约300微米或更小，优选为200微米或更小，通常最大高度为1000微米或更小，优选为750微米或更小，最小高度为 200微米以上，优选为300微米以上。 泡沫制品可以设置成各种形状，包括杆，圆筒，片等。在泡沫以片材的形式提供的优选实施例中，泡沫具有一对主表面，一个主表面 或者两者都可以具有表面微结构。 泡沫背衬和微结构包括多个空隙，其优选地基本上小于微结构的最小横截面尺寸或程度的平均尺寸。