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:
Dec. 30, 2010
Yabin Sun, Shanghai, CN;
Morgan M. Hughes, Angleton, TX (US);
Xiangyang Tai, Shanghai, CN;
Arnis U. Paeglis, Friendswood, TX (US);
Gary R. Marchand, Lake Jackson, TX (US);
Yabin Sun, Shanghai, CN;
Morgan M. Hughes, Angleton, TX (US);
Xiangyang Tai, Shanghai, CN;
Arnis U. Paeglis, Friendswood, TX (US);
Gary R. Marchand, Lake Jackson, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
A thermoplastic vulcanizate composition comprising from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a first component comprising a first propylene-based polymer selected from the group consisting of (i) propylene/α-olefin copolymers comprising from 1 to 20 wt % α-olefin and characterized by a g' ratio of less than 1, measured at interpolymer number average molecular weight (Mn), an MFR (2.16 kg @ 230° C.) greater than or equal to 0.01, a density greater than or equal to 0.850 g/cc, and a molecular weight distribution, Mw/Mn, less than or equal to 3.5, and (ii) combinations thereof; and from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a second component selected from the group consisting of curable or vulcanizable rubbers, having a density from 0.85 to 0.88 g/cc, Ifrom 0.001 to 5 g/10 min, and a Mooney viscosity from 5 to 400, and combinations thereof; wherein at least one of the rubbers is vulcanizable; wherein the thermoplastic vulcanizate composition has a tensile strength at break of greater than or equal to 8 MPa and tear strength at 23° C. of at least 190 lb-f/in. is provided. Methods of making the composition and articles made from the composition are also provided.