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. 06, 1983
Filed:
Mar. 19, 1982
James A Davis, Uniontown, OH (US);
Robert C Koch, Akron, OH (US);
The Firestone Tire & Rubber Company, Akron, OH (US);
Abstract
Naturally occurring dark, tacky, low softening thermoplastic resins of low acid number can be used as substitutes for all or part of the non-elastomeric petroleum-derived components of rubber stocks used for manufacture of tires and other rubber articles. For example, such resins can be used to replace petroleum-derived process oils or resins, or both, used in making tires. The resins, which are derived from wood, are low softening thermoplastic resins characterized by having about 15-30% unsaponifiables, 3-20% rosin acids, 3-15% fatty acids and 5-15% sterols. A typical useful resin is commerically available under the name Pamak TP.