US 6,982,309 B2 | ||
Synthesis of branched styrenic copolymers with p-t-butylstyrene | ||
Jose M. Sosa, Deer Park, Tex. (US); and Kenneth P. Blackmon, Houston, Tex. (US) | ||
Assigned to Fina Technology, Inc., Houston, Tex. (US) | ||
Filed on Dec. 19, 2003, as Appl. No. 10/742,163. | ||
Prior Publication US 2005/0137373 A1, Jun. 23, 2005 | ||
Int. Cl. C08F 212/12 (2006.01) |
U.S. Cl. 526—347 | 19 Claims |
1. A method for producing an improved copolymerized product comprising:
polymerizing at least one vinylaromatic monomer in the presence of
at least one peroxy initiator; and
p-t-butyl styrene (TBS); and
recovering a copolymerized product.
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