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:
Nov. 06, 2012
Filed:
May. 08, 2006
Laura B. Weaver, Lake Jackson, TX (US);
Douglas P. Waszeciak, Lake Jackson, TX (US);
Kim L. Walton, Lake Jackson, TX (US);
Laura B. Weaver, Lake Jackson, TX (US);
Douglas P. Waszeciak, Lake Jackson, TX (US);
Kim L. Walton, Lake Jackson, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The invention is directed to compositions comprising an elastomer component and a propylene component, and in which the elastomer component comprises at least one ethylene/α-olefin polymer, optionally containing a diene, and the polypropylene component comprises at least one branched polypropylene. Preferably, the elastomer component has a melt tan delta between about 0.7 and about 8, as measured by parallel plate rheometer at 0.1 rad/sec, 190° C., and 15 percent strain; and the ratio of the 'melt tan delta of the elastomer component' to the 'melt tan delta of the propylene component' is from 0.5 to 4. The invention also provides for method of making such compositions, and to low gloss articles prepared from the same. The inventive compositions are particularly suitable for fabricating thermoformed sheeting with reduced gloss.