Styrene copolymers with a bimodal molecular weight distribution

Details Styrene copolymers with a bimodal molecular weight distribution Styrene copolymers with a bimodal molecular weight distribution

2007-10-16

2007-10-16

Teskin, Fred (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S347000

Reexamination Certificate

active

11383675

ABSTRACT:
A styrene copolymer composition comprising at least one alkyl acrylate and/or at least one alkyl methacrylate wherein the styrene copolymer composition has a bimodal molecular weight distribution. A method of producing a styrene copolymer comprising reacting styrene and at least one alkyl acrylate and/or at least one alkyl methacrylate, wherein the alkyl acrylate comprises an alkyl group having from 8 to 12 carbon atoms and the alkyl methacrylate comprises an alkyl group having equal to or greater than 10 carbon atoms. A method of increasing the molecular weight distribution in a styrene copolymer comprising incorporating at least one alkyl acrylate and/or at least one alkyl methacrylate wherein the styrene copolymer has a polydispersity index equal to or greater than 3.

REFERENCES:
patent: 4073738 (1978-02-01), Ladenberger et al.
patent: 4486524 (1984-12-01), Fujisaki et al.
patent: 4663357 (1987-05-01), Meyer et al.
patent: 4673694 (1987-06-01), Meyer et al.
patent: 4777210 (1988-10-01), Sosa et al.
patent: 5650106 (1997-07-01), Paquet et al.
patent: 6258504 (2001-07-01), Bartus et al.
patent: 6326449 (2001-12-01), Haldankar
patent: 6350842 (2002-02-01), Wang
patent: 6495648 (2002-12-01), Inagaki et al.
patent: 6569941 (2003-05-01), Sosa et al.
patent: 6583252 (2003-06-01), Schuler et al.
patent: 6706814 (2004-03-01), Demirors
patent: 6803166 (2004-10-01), Cheng et al.
patent: 2005/0070662 (2005-03-01), Sosa et al.
patent: 2005/0148749 (2005-07-01), Scherer et al.
patent: 2005/0239937 (2005-10-01), Scherer et al.
Davis, Thomas P., et al., “Copolymerization Propagation Kinetics of Styrene with Alkyl Methacrylates,” Macromolecules, vol. 23, No. 8, American Chemical Soceity, 1990, pp. 2113-2119.
Simon, George P., et al. “Free Volume and Molecular In a Styrene/N-Butyl Methacrylate Copolymer Series,” ANTEC Paper, Florida, May 2000, 5 pgs.
Stergiou, G., et al, “Radical copolymerization of styrene and alkyl methacrylates: monomer reactivity ratios and thermal properties,” European Polymer Journal, vol. 38, Elsevier Science, 2002, pp. 1963-1970.
Weidisch, R., et al., “Transition from Crazing to Shear Deformation in Star Block Copolymers,” Macromolecules, vol. 35, No. 17, American Chemical Society, 2002, pp. 6585-6591.

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