Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2008-10-15
2010-12-07
Cain, Edward J (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S213000, C523S216000, C524S492000, C524S493000
Reexamination Certificate
active
07846993
ABSTRACT:
The present invention relates to an organic silica master batch elastomer prepared by mixing a conjugated diene based copolymer, a vinyl aromatic copolymer or a mixture thereof prepared by solution polymerization with organically modified silica in which the surface of silica is modified with a particular organosilicon compound and a silane coupling agent in solution. The resultant organic silica master batch elastomer exhibits improved mechanical properties, wear resistance and blending processability, and can provide the effect of extending durability of a tire.
REFERENCES:
patent: 5925713 (1999-07-01), Labauze
patent: WO 98/37015 (1998-08-01), None
Stenger, F. et al.: “Rubber Filler Composites based on Solution Polymers and Silica—Status of Developments”,Donnerstag, 6, Jul. 6, 2006, Poster 33, pp. 417-419.
Ko Jae Young
Ko Seung Kyung
Ko Young Hoon
Cain Edward J
Frommer & Lawrence & Haug LLP
Korea Kumho Petrochemical Co. Ltd.
Santucci Ronald R.
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