THERMOFORMED, EXTRUDED SHEETING WITH REDUCED GLOSS
5072/CHENP/2007 A (5072/CHENP/2007)
Filed on 2007-11-12
Publication date 2008-05-30
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/a-olefm 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 DEG 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.
Applicant
DOW GLOBAL TECHNOLOGIES INC
2040 DOW CENTER MIDLAND, MICHIGAN 48674 U.S.A.
Inventor
WEAVER, LAURA, BAUERLE, WASZECIAK, DOUGLAS, P, WALTON, KIM, LOUIS
International Information
Classification
C08L 23/16
Publication number
WO 2006/124369 A1
Application date
2006-05-08
Application number
PCT/US06/17728