Article for joining dimensionally recoverable parts

Details Article for joining dimensionally recoverable parts Article for joining dimensionally recoverable parts

1987-06-19

1989-02-07

Epstein, Henry F.

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

156 86, 156215, 156327, 428 57, 428 66, 428285, 428286, 428138, 428145, 428212, 428516, B32B 300, B32B 3100

Patent

active

048031046

ABSTRACT:
A heat-recoverable wrap-around sleeve for pipe protection, with a patch-type closure.
The patch is heat-stable and comprises two polymeric layers bonded together through, for example, an open mesh glass-fibre fabric. No separate adhesive is required.
The hot modulus of one of the layers is low enough to enable it to bond to the overlapping edges of the wrap-around sleeve, and the hot modulus of the other layer is high enough to withstand installation temperature.
This new patch is easier to install and requires less materials than prior art patches, and does not need to be bonded to the sleeve in such a distinct heating step.

REFERENCES:
patent: 3483018 (1969-12-01), Waldman
patent: 4012553 (1977-03-01), Clemens
patent: 4082521 (1978-04-01), Mcbaney
patent: 4200676 (1980-04-01), Caponigro et al.
patent: 4233356 (1980-11-01), Jacobs
patent: 4373554 (1983-02-01), Cook
patent: 4424246 (1984-01-01), Pieslak et al.
patent: 4472468 (1984-09-01), Tadler et al.
patent: 4522870 (1985-06-01), Esmay

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