US 6,015,600 A · Heat-recoverable article

Abstract

An article (2) in which at least part of a surface (8) of a polymeric element has an embossed pattern (6). The article may be either heat-recoverable or non-heat-recoverable. If the article is heat-recoverable, when heated the article recovers and the embossed surface becomes substantially smooth. The change in surface texture can be used to indicate that sufficient heat has been applied to the article to achieve adequate recovery and/or to adequately melt an attached adhesive layer (10). In another embodiment, the article (2) is in the form of a patch (14) which can be used to secure the opposing longitudinal edges of heat-recoverable article which is in the form of a wraparound sheet.

Claims15

Dependent claims

An article comprising a polymeric element which is a continuous extruded polymeric sheet, said element comprising

(1) a first surface which has an embossed pattern which (a) is over at least part of the surface, and (b) undergoes a visible change when the element is heated such that the embossed surface becomes substantially smooth to indicate recovery;
and
(2) a second surface which is not embossed.

Dependencies are inferred from the claim text.

Facts

Application

08/918,825Filed 26 Aug 1997 · division

Priority

25 Oct 1994

Granted

18 Jan 2000

Term ends

Not estimatedThe source records don’t support an estimate.

Classification47 codes

F16B 4/00
Shrinkage connections
B29C 61/0608
Making preforms having internal stresses, e.g. plastic memory: characterised by the configuration or structure of the preforms
B29C 61/0666
Characterised by the configuration or structure of the preforms: comprising means indicating that the shrinking temperature is reached
B29C 65/5021
Characterised by the structure of said adhesive tape, threads or the like: being multi-layered

Heat-recoverable article

Life of this patent

Heat-recoverable article

Life of this patent

Abstract

Claims15