Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1986-03-18
1988-03-01
Kittle, John E.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428343, 428346, 428347, 428354, 174DIG8, 285 53, F16L 5518, F16L 5800
Patent
active
047285508
ABSTRACT:
A sleeve, which finds particular application in the environmental sealing of joints between insulated pipes, comprises heat-recoverable polymeric sheet material provided at separate regions of a principle surface thereof with a layer of a heat-activatable adhesive for bonding the sheet to the pipe insulation, and a layer of a sealant to accommodate flexibility in the joint. A layer of a sealing material, having an elongation modulus greater than that of the sealant, overlies at least part of the sealant layer, to improve the pressure retention properties of the sleeve.
REFERENCES:
patent: 4241119 (1980-12-01), Smart
patent: 4359502 (1982-11-01), Caponigro et al.
patent: 4499136 (1985-02-01), Nakamura et al.
patent: 4521470 (1985-06-01), Duerbergh et al.
Alaerts Eddy
Van Beersel Jos
Burkard Herbert G.
Kittle John E.
NV Raychem SA
Rice Edith A.
Seidleck James J.
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