Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
2005-02-22
2005-02-22
Dawson, Robert (Department: 1712)
Stock material or miscellaneous articles
Composite
Of silicon containing
C428S413000, C427S496000, C427S508000, C427S384000, C427S393500, C427S536000
Reexamination Certificate
active
06858309
ABSTRACT:
The present invention provides improved methods for conducting living/controlled polymerization on polymeric solid supports. The improved methods allow polymerization to occur directly from the non-functionalized surface of a bulk support. In addition, polymerization may be re-initiated to provide co-polymers. The disclosed methods may employ the non-nitroxide-based RAFT and ATRP control agents that allow controlled polymerization to proceed at relatively low temperatures (<80° C.). Furthermore, these improved methods may provide graft polymers with decreased levels of “in-growth” of the bulk solid support. The invention also provides substrate polymers, with improved properties for solid phase synthesis and diagnostic applications, which may be made by the disclosed methods.
REFERENCES:
patent: 4267202 (1981-05-01), Nakayama et al.
patent: 5080924 (1992-01-01), Kamel et al.
patent: 5139817 (1992-08-01), Abe et al.
patent: 5789487 (1998-08-01), Matyjaszewski et al.
patent: 5922161 (1999-07-01), Wu et al.
patent: 6001894 (1999-12-01), Ottersbach et al.
patent: 6310149 (2001-10-01), Haddleton
patent: 2052783 (1998-02-01), None
patent: 2341387 (2000-03-01), None
patent: 2249955 (2000-04-01), None
patent: WO 9747661 (1997-12-01), None
patent: WO 9801480 (1998-01-01), None
patent: WO 9831732 (1998-07-01), None
patent: WO 0250171 (1999-06-01), None
patent: WO 9928352 (1999-06-01), None
patent: WO 0012575 (2000-03-01), None
patent: WO 0078740 (2000-12-01), None
patent: WO 0162804 (2001-08-01), None
Angot, et al., “Living Radical Polymerization Immobilized on Wang Resins: Synthesis and Harvest of Narrow Polydipersity Poly(methacrylate)s,”Macromolecules34:768-774 (2001).
Darling, et al., “Living Polymerization: Rationale for Uniform Terminology,”J. Polym. Sci. Part A: Polym. Chem.38:1706-1708 (2000).
Ejaz, et al., “Controlled Grafting of a Wall-Defined Glycopolymer on a Solid Surfact by Surface-Initiated Atom Transfer Radical polymerization,”Macromolecules33:2870-2874 (2000).
Granel, et al., Controlled Radical Polymerization of Methacrylic Monomers in the Presence of a Bis(ortho-chelated) Arylnickel(II) Complex and Different Activated Alkyl HalidesMacromolecules29:8576-8582 (1996).
Hawker, et al., “Radical Crossover in Nitroxide Mediated ‘Living’ Free Radical Polymerizations,”J. Am. Chem. Soc.118:11467-11471 (1996).
Kato, et al., “Polymerization of Methyl Methacrylate with the Carbon Tetracloride/Dichlorotris-(triphenylphosphine)ruthenium(II)Methylaluminum Bis(2,6-di-tert-butylphenoxide)Initiating System: Possibility of Living Radial Polymerization,”Macromolecules28:1721-1723 (1995).
Mandal, et al., “Production of Hollow Polymeric Microspheres by Surface-Confined Living Radical Polymerization on Silica Templates,”Chem. Mater.12:3481-3487 (2000).
Pattern, et al., “Polymers with Very Low Polydispersities from Atom Transfer Radical Polymerization,”Science272:866-868 (1996).
Percec & Barboiu, ‘Living’ Radical Polymerization of Styrene Initiated by Arenesuljonyl Chlorides and Cu1(bpy)nC1Macromolecules28:7970-7972 (1995).
Wang & Matyjaszewski, “Controlled/‘Living’ Radical Polymerization. Atom Transfer Radical Polyerization in the Presence of Transition-Metal Complexes,”J. Am. Chem. Soc.117:5614-5615 (1995).
Copending U.S. patent application 10/052,907, filed Jan. 17, 2002.
Derwent Abstract Accession No. 96-502794, Class A96, and JP 8-259716 A.
Derwent Abstract Accession No. 89-367670, Class A35, and JP 1-275639 A.
Blakey Idriss
Davis Tom
Day Gary M.
Kambouris Peter
Whittaker Michael
Dawson Robert
Halluin Albert P.
Howrey Simon Arnold and White LLP
Keehan Christopher
Polymerat Pty. Ltd.
LandOfFree
Methods of polymerization does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods of polymerization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of polymerization will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3455758