Cabot Corporation

Kazue Watanabe

Mizuo Soeda

Takeo Ito

Martin C Green

John M Branan, Jr

Ted W Bush

Akimasa Arita

Yoichi Yuza

Novel carbon blacks having a CTAB of from 65 m /g to 85 m /g, a DBP of from 130 cc/100 g to 160 cc/100 g, a CTAB/I No. ratio of from 1.15 to 1.35, a &Dgr;DPB of from 20 cc/100 g to 40 cc/100 g, a Tint value of from 85 to 100, a Dmode of from 115 nm to 135 nm and a &Dgr;D /Dmode ratio of from 0.65 to 0.90. Also disclosed are novel rubber compositions, incorporating the carbon blacks, having increased abrasion resistance and lower hysteresis.

Carbon black and rubber compositions containing same

New carbon blacks that when incorporated into rubber compositions impart increased abrasion resistance and lower hysteresis. Also disclosed are rubber composition incorporating the novel carbon blacks, which have nitrogen surface area of at least 100, a CDBP of at least 105, a tint of 90-140 and a delta D50/Dmode ratio of 0.6-0.76.

Carbon black and rubber composition containing same

Growing community of inventors

Chiba-ken, Japan

Kazue Watanabe