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. 22, 2008
Filed:
Jul. 30, 2001
Chor Huang, Avon Lake, OH (US);
Chor Huang, Avon Lake, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A mixture comprising A) a copolymer comprising from about 70 to about 79% by weight of units derived from ethylene, and having (a)measured by gel permeation chromatography employing polystyrene standard ranging from about 50,000 up to less than 130,000 and/or (f) SSI≦18; (b) density (D) ranging from about 845 to about 895 kg/m; (c)/less than 3; (d) melting point (T) measured by differential scanning calorimeter ranging from about 15° C. to about 60° C.; and (e) degree of crystallinity≧15%, and B) an amorphous polymer havingranging from about 130,000 to about 1,000,000 having degree of crystallinity≦5%. In one embodiment the density and the melting point of the copolymer A) fulfill the expression T≦1.247 D−1037. In another embodiment, the percentage content (E: % by weight) of repeating units derived from ethylene and melting point (T: ° C.) of the copolymer A) fulfill the expression 3.44E−206≧T. Also, additive concentrates and lubricating compositions comprising the components making up the mixture.