Hose construction

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B - Operations, Transporting

29

D

26/155, 189/28,

B29D 23/00 (2006.01) F16L 11/08 (2006.01) B29C 35/04 (2006.01)

Patent

CA 1245168

Abstract of the Disclosure HOSE CONSTRUCTION This invention is concerned with a hose construction particularly suitable for Freon service in refrigeration systems. The hose comprises (1) a core tube of polyamide covered by an elastomeric friction layer such as EPDM rubber having incorporated therein a calcium ion source and an adhesion system and a curative, (2) a layer of tensioned reinforcement strands, (3) an adhesive/barrier/friction layer such as an ethylene acrylic acid copolymer, (4) a second layer of tensioned reinforcement strands, and (5) a cover selected from chlorobutyl rubber or other suitable materials wherein the chlorobutyl rubber utilizes a bis-dienophile as a crosslinker.

509459

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