The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 1993
Filed:
Jun. 15, 1992
Donald J Burlett, Wadsworth, OH (US);
Kevin J Pyle, Uniontown, OH (US);
Mark S Sinsky, Akron, OH (US);
Ricahrd G Bauer, Kent, OH (US);
Deborah A Tung, Tallmadge, OH (US);
Vetkav R Parameswaran, Hudson, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
Hoses are often reinforced with fabric to improve their performance characteristics, such as burst strength. By utilizing the technique of this invention, hose which has a high level of burst strength can be manufactured without including continuous yarn reinforcement. This invention specifically reveals a process for manufacturing a hose which involves the steps of (1) extruding a rubber composition into the form of a tube, wherein the rubber composition contains (a) an EPDM alloy comprised of (i) standard EPDM rubber, (ii) an EPDM rubber having thermoplastic side chains grafted thereto, and (iii) dispersed thermoplastic wherein the thermoplastic is selected from the group consisting of nylons, polyesters, and polyphenylene oxides, (b) an EPDM rubber, (c) carbon black, (d) at least one curative, (e) zinc oxide, (f) a processing oil, and (g) stearic acid; (2) shaping the tube into the geometric form desired for the hose; and (3) curing the rubber composition at a temperature within the range of 130.degree. C. to 210.degree. C. to produce the hose.