Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2004-11-30
2010-11-23
Seidleck, James (Department: 1796)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S402000, C525S902000, C523S201000
Reexamination Certificate
active
07838112
ABSTRACT:
This invention discloses a process for synthesizing a modified crosslinked elastomeric particle which comprises a two-step polymerization of a conjugated diolefin monomer and a vinyl aromatic monomer by emulsion polymerization, wherein the particle is synthesized by the steps of (1) polymerizing a conjugated diolefin monomer, alone or in combination with a vinyl aromatic monomer, and optionally a crosslinking monomer, to create a crosslinked elastomeric core having residual double bonds and an outer surface; (2) polymerizing a monomer of a vinyl aromatic monomer, alone or in combination with a diolefin monomer, to create a polymeric shell, wherein the polymeric shell is grafted to the outer surface of the polymeric core by reacting with the residual double bonds of the polymeric core; and (3) coagulating the core-shell emulsion latex solution to recover the particles.
REFERENCES:
patent: 5395891 (1995-03-01), Obrecht et al.
patent: 5409967 (1995-04-01), Carson et al.
patent: 5686528 (1997-11-01), Wills et al.
patent: 6127488 (2000-10-01), Obrecht et al.
patent: 6130290 (2000-10-01), Troy et al.
patent: 6133364 (2000-10-01), Obrecht et al.
patent: 6207757 (2001-03-01), Obrecht et al.
patent: 6242534 (2001-06-01), Obrecht et al.
patent: 6248807 (2001-06-01), Sosa et al.
patent: 6316527 (2001-11-01), Meyer et al.
patent: 6395829 (2002-05-01), Miyamoto et al.
patent: 6489378 (2002-12-01), Sosa et al.
patent: 6620866 (2003-09-01), Obrecht et al.
patent: 6653404 (2003-11-01), Konno et al.
patent: 6747095 (2004-06-01), Konno et al.
patent: 6777500 (2004-08-01), Lean et al.
patent: 0 265 142 (1988-04-01), None
patent: 0 536 934 (1993-04-01), None
patent: 0 953 583 (1999-11-01), None
patent: 0 985 692 (2000-03-01), None
patent: 06 128339 (1994-08-01), None
U.S. Appl. No. 60/552,617, filed Mar. 12, 2004, Zheng et al.
Castner Eric Sean
Xie Feng Anne
Zhang Ping
Zheng Lei
Haider Saira
Rockhill Alvin T.
Seidleck James
The Goodyear Tire & Rubber Company
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