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, 2005
Filed:
Dec. 04, 2003
Shih-yaw Lai, Sugar Land, TX (US);
George W. Knight, Lake Jackson, TX (US);
John R. Wilson, Richwood, TX (US);
James C. Stevens, Midland, MI (US);
Pak-wing Steve Chum, Lake Jackson, TX (US);
Shih-Yaw Lai, Sugar Land, TX (US);
George W. Knight, Lake Jackson, TX (US);
John R. Wilson, Richwood, TX (US);
James C. Stevens, Midland, MI (US);
Pak-Wing Steve Chum, Lake Jackson, TX (US);
Dow Global Technologies Inc., Midland, MI (US);
Abstract
Substantially linear olefin polymers having a melt flow ratio, I/I,≧5.63, a molecular weight distribution, M/M, defined by the equation: M/M≦(I/I)−4.63, and a critical shear stress at onset of gross melt fracture of greater than about 4×10dyne/cmand their method of manufacture are disclosed. The substantially linear olefin polymers preferably have at least about 0.01 long chain branches/1000 carbons and a molecular weight distribution from about 1.5 to about 2.5. The new polymers have improved processability over conventional olefin polymers and are useful in producing fabricated articles such as fibers, films, and molded parts.