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. 12, 1978
Filed:
Oct. 26, 1977
Applicant:
Inventors:
Oren L Marrs, Bartlesville, OK (US);
Robert E Reusser, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 428489 ;
Abstract
An asphaltic composition having low temperature flexibility and resistance to stress cracking, shearing or adhesive failure is prepared using conjugated diene-monovinyl substituted aromatic hydrocarbon copolymers prepared in absence of polar-type randomizers, e.g., tetrahydrofuran, or by incremental addition of both the monovinyl substituted aromatic hydrocarbon and initiator, e.g., organomonolithium. The composition is especially useful in cold places, e.g., as a coating for objects to be stored or kept in cold ground, above ground or under the sea.