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:
Apr. 12, 2016
Filed:
Apr. 02, 2013
Johannes Matthieu Soulages, Morristown, NJ (US);
David John Lohse, Bridgewater, NJ (US);
Andy Haishung Tsou, Allentown, PA (US);
Thomas Sun, Clinton, NJ (US);
Pamela Jean Wright, Easton, PA (US);
Nikos Hadjichristidis, Athens, GR;
Pradeep Pandurang Shirodkar, Houston, TX (US);
Johannes Matthieu Soulages, Morristown, NJ (US);
David John Lohse, Bridgewater, NJ (US);
Andy Haishung Tsou, Allentown, PA (US);
Thomas Sun, Clinton, NJ (US);
Pamela Jean Wright, Easton, PA (US);
Nikos Hadjichristidis, Athens, GR;
Pradeep Pandurang Shirodkar, Houston, TX (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
Provided are blends of branched hydrocarbon comb polymers having tailored branching and molecular weight parameters, with substantially linear polymers. Such blends have been found to have improved extensional rheological properties, while maintaining nearly the viscosity of the substantially linear polymers. The blends of the hydrocarbon comb polymers with the substantially linear polymers thus maintain the extrusion processing characteristics of the linear polymer alone, but have improved extensional flow processability, with strain hardening ratios (SHR) greater than 1. The blends are effective in blown film processing. Also disclosed are related methods for improving extensional flow processability using the branched hydrocarbon comb polymers, as well as the branched hydrocarbon comb polymers themselves, including as a property enhancing additive for such substantially linear polymers.