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. 02, 2006
Filed:
Nov. 10, 2003
Nathan E. Stacy, Bartlesville, OK (US);
Larry L. Nash, Bartlesville, OK (US);
John D. Hottovy, Bartlesville, OK (US);
Nathan E. Stacy, Bartlesville, OK (US);
Larry L. Nash, Bartlesville, OK (US);
John D. Hottovy, Bartlesville, OK (US);
Chevron Phillips Chemical Company, LP, The Woodlands, TX (US);
Abstract
We disclose a monovinylarene/conjugated diene block copolymer, comprising: (i) a random (conjugated diene/monovinylarene)block, wherein x is about 2.5 wt % to about 10 wt %, y is from about 90 wt % to about 97.5 wt %, and x+y is about 97.5 wt % to 100 wt %; and (ii) a (conjugated diene)block; wherein n is from about 20 wt % to about 30 wt %, m is from about 70 wt % to about 80 wt %, and m+n is from about 90 wt % to 100 wt %. We also disclose a method of forming the block copolymer and a method for fabricating an article from the block copolymer. The block copolymer typically exhibits a Tat least about 10° C. less than the Tof a reference polymer differing only in that x is about 0 wt % and y is about 100 wt %.