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:
Jul. 31, 2001
Filed:
Nov. 16, 1999
Applicant:
Inventors:
D. Chris Boyer, Huntington, WV (US);
Patricia K. Doolin, Ashland, KY (US);
Assignee:
Marathon Ashland Petroleum LLC, Findlay, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 3/08 ; C08L 9/500 ; C09D / ;
U.S. Cl.
CPC ...
B01F 3/08 ; C08L 9/500 ; C09D / ;
Abstract
A low softening point pitch is disclosed. A high melting point (100° C.+) pitch is blended with an aromatic rich liquid hydrocarbon stream to form a pourable pitch mixture having a softening point of 30-50° C. which can be used as a partial or complete replacement for coal tar pitch used in driveway sealer and other sealer and coating applications. Driveway sealer (an emulsion of clay, water and binder) made with this pitch has enhanced durability. The low softening point pitch, even when blended with coal tar pitch, is phase stable on storage.