Michael H Vaughn

US Patent:

7160593, Jan 9, 2007

Filed:

Jul 9, 2003

Appl. No.:

10/616421

Inventors:

Girish T. Dalal - Avon Lake OH, US
Arthur L. Backman - Broadview Heights OH, US
Andrew M. Olah - Spencer OH, US
Theodore J. Schmitz - Avon OH, US
Andrew L. Auvil - Brecksville OH, US
Michael D. Vaughn - Strongsville OH, US
James J. Dedrick - Medina OH, US

Assignee:

Noveon, Inc. - Cleveland OH

International Classification:

B32B 1/08
B32B 27/08
B32B 27/32
B29D 23/00
F16L 11/04
F16L 9/133
C08F 283/00

US Classification:

428 3691, 428 357, 428 365, 428 369, 428515, 428516, 428518, 428519, 428523, 138137, 138140, 138141, 525356, 525416

Abstract:

A multi-layered pipe of arbitrary length and cross-section is produced by co-extrusion of a lower polyolefin (C–C) outer body over the exterior surface of a tubular core of randomly, partially randomly, or blocky chlorinated lower polyolefin, the core having a wall thickness, measured in the radial direction, in the range from about 0. 025 mm to 5 mm. The tubular core is coextensive with essentially the entire length of the pipe. The tubular core comprises a major proportion by weight of the randomly chlorinated polyolefin (r-CPO), or, partially randomly chlorinated polyolefin (pr-CPO), or, a blocky chlorinated polyolefin (b-CPO), any of which may be blended with a minor proportion by weight of a blending ingredient. The r-CPO, pr-CPO or b-CPO, or a blend thereof, each has an extrusion temperature in the same range as that for the corresponding non-halogenated polyolefin, namely in the range from about 150 C. to 250 C.

Address:

26600 Amhearst Cir APT 304, Beachwood, OH 44122

Phone:

440-846-1063

VIN:

1N4BA41E87C847449

Make:

NISSAN

Model:

MAXIMA

Year:

2007