Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-12-19
2006-12-19
Mullis, Jeffrey (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S333100, C525S342000
Reexamination Certificate
active
07151140
ABSTRACT:
The present invention provides a method for preparing a copolymer useful for the manufacture of tires by coupling the ends of a living polymer, obtained from copolymerization of a diene monomers in the presence of an organolithium initiator and a hydrocarbon solvent, with a multi-reactive polysiloxane compound, and subsequently modifying the remaining uncoupled ends of the polymer with an amine compound. The use of the copolymer thus obtained for tire production improves the affinity to silica and greatly enhances the dynamic properties required for tires, such as wet traction and rolling resistance.
REFERENCES:
patent: 3244664 (1966-04-01), Robert et al.
patent: 3598887 (1971-08-01), Jules et al.
patent: 3880954 (1975-04-01), Kahle et al.
patent: 4397994 (1983-08-01), Takeuchi et al.
patent: 4555548 (1985-11-01), Ueda et al.
patent: 4834120 (1989-05-01), Rumez
patent: 5137998 (1992-08-01), Hsu et al.
patent: 5219945 (1993-06-01), Dicker et al.
patent: 6777493 (2004-08-01), Ko et al.
patent: 6846873 (2005-01-01), Ko et al.
patent: 2002/0123554 (2002-09-01), Ko et al.
patent: 1 103939 (1968-02-01), None
patent: 01 101344 (1989-04-01), None
patent: 01 188501 (1989-07-01), None
patent: 03 252431 (1991-11-01), None
patent: 03 252433 (1991-11-01), None
patent: 05 230286 (1993-09-01), None
Iwakazu Hattori, et al., “Synthesis of Polysoprene with Primary Amino End Groups and Poly(isoprene-b-y-benzyl-L-glutamate)s” Makromol. Chem. 184, pp. 1355-1362 (1983).
Roderic P. Quirk, et al., “Characterization of the Functionalization Reaction Product of Poly(styryl)lithium with Ethylene Oxide”, Journal of Polymer Science: Part A: Polymer Chemistry, vol. 26, pp. 2031-2037 (1988).
Roderic P. Quirk, et al., “Carbonation of Polymeric Organolithium Compounds: Effects of Chain End Structure” Journal of Polymer Science: Part A: Polymer Chemistry, vol. 30, pp. 2349-2355 (1992).
Choi Hyung-Kyu
Han Shin
Jang Young-Chang
Ko Young-Hoon
Davidson Davidson & Kappel LLC
Korea Kumho Petrochemical Co. Ltd.
Mullis Jeffrey
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