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:
May. 26, 2009
Filed:
Nov. 21, 2005
Thomas J. Schwab, Loveland, OH (US);
Jean A. Merrick-mack, West Chester, OH (US);
Wallace W. Yau, Mason, OH (US);
Kelly L. Williams, Maineville, OH (US);
Thomas J. Schwab, Loveland, OH (US);
Jean A. Merrick-Mack, West Chester, OH (US);
Wallace W. Yau, Mason, OH (US);
Kelly L. Williams, Maineville, OH (US);
Equistar Chemicals LP, Houston, TX (US);
Abstract
Ethylene copolymers valuable for films, coatings, sheets, and molded articles are disclosed. Some of the copolymers have a long-chain-branching index from 0.25 to 0.60 and a gpcBR index from 0.1 to 0.7. Others have a primary DSC melting point that is less than its secondary DSC melting point. Also disclosed is LLDPE in which the weight percentage of the low-temperature elution fraction exceeds that of the high-temperature fraction, and wherein the Mof the low-temperature fraction exceeds that of the high-temperature fraction. The ethylene copolymers process easily, even at low melt indices, and films from the copolymers have high stiffness, good impact resistance, and high heat-seal strength over a wide temperature range.