Lithium Butadiene Rubber

Lithium catalyst systems lead to polybutadienes with a medium cis-1,4 content. These polybutadienes are linear polymers used in classical tire formulations around the bead area of the tire. Due to a further process step Buna® CB 60 is star branched polymer that allows the incorporation of high loadings of filler yet allowing good processibility in, for example, apex compounds. Li-BRs can be blended with other diene based rubbers, including natural rubber to  help mitigate reversion.


Main applications:

    · technical rubber goods

    · apex areas of the tire

    · application where low temperature flexibility is important

    · footwear soles

Product Portfolio
Mooney [MU] Remark
Buna® CB 45        45 linear
Buna® CB 60        60 star branched
Buna® CB 55 NF        55 linear
Buna® CB 70        70 linear
Buna® CB 55 H        54 linear
Buna® CB 55 L        51 linear


David Hardy
Technical Service - EMEA

Phone: +49 221 8885 6307

Marcus Moutinho
Technical Service - LATAM

Phone: +55 21 2677 1219

Esther Han
Technical Service - APAC

Phone: +65 6725 5777

Sharon Guo
Technical Service - NAFTA

Phone: +1-519-953-1728