Rubber with combination of silica and partially...

Details Rubber with combination of silica and partially... Rubber with combination of silica and partially...

2008-02-14

2010-06-15

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S274000

Reexamination Certificate

active

07737204

ABSTRACT:
This invention relates to rubber compositions which contain a combination of silica reinforcement and plant-derived liquid partially decarboxylated rosin acid and to tires having components thereof, such as, for example, tire treads. Said liquid partially decarboxylated rosin acid acts both as a processing aid for the mixing of the rubber composition and as an aid to reinforcement of the rubber composition by interaction with the silica in situ within the rubber composition.

REFERENCES:
patent: 4063979 (1977-12-01), Rongone
patent: 4478993 (1984-10-01), Wideman et al.
patent: 5840113 (1998-11-01), Freeman et al.
patent: 6046266 (2000-04-01), Sandstrom et al.
patent: 6936669 (2005-08-01), Halasa et al.
patent: 2003/0187110 (2003-10-01), Schaal et al.
European Search Report completed Jun. 12, 2009.

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