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:
Feb. 01, 1977
Filed:
Mar. 04, 1976
John W Scheffel, Fullerton, CA (US);
Paul W Fischer, Whittier, CA (US);
Union Oil Company of California, Brea, CA (US);
Abstract
A water-insoluble particulate composition having controlled slow oil-solubility at temperatures in excess of 350.degree. F. is disclosed. The composition is comprised of solid particles of a homogeneous mixture of (1) polyethylene, ethylene-vinyl acetate copolymer containing about 15 to 30 weight percent vinyl acetate, or admixtures of these polymers; (2) a polyamide having a melting point of between about 400.degree. F. and 460.degree. F.; and (3) a softening agent such as a long chain aliphatic diamide having a melting point between about 280.degree. F. and 300.degree. F., or a polyterpene resin having a melting point of between 230.degree. F. and 275.degree. F. Also disclosed is a method of using this particulate composition in well drilling and treating operations where formation temperatures of 350.degree. F. or above are encountered.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile