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US 6,030,701 AGranted
Melt-flowable materials and method of sealing surfaces
Assignee3M Innovative Properties Company
InventorsMichael A. Johnson, Clayton A. George, Peggy S. Willett, Scott R. Meyer
Life of this patent
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Abstract
The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermosettable layer with a substrate and heating the sheet material to an elevated temperature.
Claims26
A article adapted for placement on the surface of a substrate comprising:
- (a) a melt-flowable composition that flows and substantially covers a desired area of the surface of the substrate when said article is heated to a temperature sufficient to cause said melt-flowable composition to flow;
- and
- (b) a dimensionally stable film for controlling the melt-flow behavior of said melt-flowable composition to substantially confine said melt-flowable composition to the desired area of the surface of the substrate when said article is heated to a temperature sufficient to cause said melt-flowable composition to flow,
- said dimensionally stable film having a preselected surface topography which is substantially retained when said article is heated to a temperature sufficient to cause said melt-flowable composition to flow,
- said dimensionally stable film having sufficient integrity such that:
- (i) it does not melt and flow when heated to temperatures sufficient to cause said melt-flowable composition to melt and flow.
3 more elements
Dependencies are inferred from the claim text.