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Polymerization of isoprene from renewable resources

  • US 8,546,506 B2
  • Filed: 06/16/2010
  • Issued: 10/01/2013
  • Est. Priority Date: 06/17/2009
  • Status: Active Grant
First Claim
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1. A system for producing a copolymer of isoprene comprising:

  • (a) an isoprene starting composition derived from renewable resources, wherein the isoprene starting composition is comprised of greater than about 2 mg of isoprene and one or more compounds selected from the group consisting of ethanol, acetone, methanol, acetaldehyde, methacrolein, methyl vinyl ketone 2-methyl-2-vinyloxirane, cis- and trans-3-methyl-1, 3-pentadiene, a C5 prenyl alcohol, 2-heptanone, 6-methyl-5-hepten-2-one, 2,4,5-trimethylpyridine, 2,3,5-trimethylpyrazine, citronellal, methanethiol, methyl acetate, 1-propanol, diacetyl, 2-butanone, 2-methyl-3-buten-2-ol, ethyl acetate, 2-methyl-1-propadol, 3-methyl-1-butanal, 3-methyl-2-butanone, 1-butanol, 2-pentanone, 3-methyl-1-butanol, ethyl isobutyrate, 3-methyl-2-butenal, butyl acetate, 3-methylbutyl acetate, 3-methyl-3-buten-1-yl acetate, 3-methyl-2-buten-1-yl acetate, (E)-3,7-dimethyl-1,3,6-octatriene, and (Z)-3,7-dimethyl-1,3,6-octatriene; and

    (b) a polymer produced from at least a portion of the isoprene starting material;

    wherein at least a portion of the isoprene starting composition undergoes polymerizettion with another non-isoprene molecule to produce a copolymer.

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