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:
Sep. 26, 1978
Filed:
Sep. 04, 1975
Gilbert W Tarver, El Dorado, AR (US);
Russell E Koons, El Dorado, AR (US);
Lion Oil Company, Los Angeles, CA (US);
Abstract
Disclosed are: (1) A primer coating composition containing an air-blown, solvent extracted asphalt having a penetration of about 1 to about 12 and a softening point of about 150.degree. to about 270.degree. F; (2) a blend of 70-92 parts by weight of an air-blown, solvent extracted asphalt having a penetration of about 0 to about 7, and a softening point of about 200.degree. to about 250.degree. F., and about 8 to about 30 parts by weight of a non-air-blown, solvent extracted asphalt having a penetration of about 40 to about 150, and a softening point of about 105.degree. to about 130.degree. F., the blend having a ductility at 77.degree. F., using a speed of one cm per minute of at least 2.5, a penetration of about 7 to about 15, and a softening point of about 200.degree. to about 220.degree. F.; (3) metallic substrates coated with the primer composition set forth above; and (4) metallic substrates having a coating containing the blend set forth above.