Title:
RADIATION-BRIDGED TUBULAR BODY FOR TITRATION IRRIGATION AND COMPOSITION FOR EXTRUDABLE TUBE
Document Type and Number:
Japanese Patent JPS5861138
Kind Code:
A
Abstract:
Drip irrigation tubing cross-linked by irradiation, the tubing having a burst strength at 80.degree.C greater than about 3612 hours at 400 psi hoop stress and greater than about 8008 hours at 320 psi hoop stress. The tubing is formed by profile extrusion of a composition comprised of: (1) more than about 80% and less than about 97% by weight of a low pressure, low density hydrocarbon interpolymer; (2) more than about 2% and less than about 10% by weight of a copolymer of ethylene with a vinyl ester of C1-C30 monocarboxylic acid and other alpha olefins in minor concentrations providing a copolymer having a density between 0.91 and 0.94 gm\\cm3; (3) more than about 0.01% and less than about 3% by weight of at least one ultraviolet stabilizer; and (4) less than about 0.5% by weight of at least one anti-oxidant stabilizer which permits cross-linking by irradiation.
Inventors:
UIRIAMU JIEIMUZU MICHII JIYUNI
Application Number:
JP15825382A
Publication Date:
April 12, 1983
Filing Date:
September 13, 1982
Export Citation:
Assignee:
UNION CARBIDE CORP
International Classes:
C08L23/00; B29B7/00; B29C47/00; B29C48/32; C08J3/28; C08J5/00; C08J7/18; C08K3/04; C08L7/00; C08L21/00; C08L23/02; C08L23/08; C08L101/00; (IPC1-7): B29D23/04; C08L23/02
Domestic Patent References:
| JPS559677A | 1980-01-23 | |||
| JPS5226546A | 1977-02-28 |
Attorney, Agent or Firm:
Motohiro Kurauchi