Patent News.

Mold for curing precured treads to
tire casings

U.S. patent: 6,290,810
Issued: September 18, 2001
Inventors: Albert James Yovichin and
Thomas Andrew Laurich.
Assigned: Goodyear Tire & Rubber

Process for production of modified
carbon black for rubber reinforcement
and process of production of
rubber composition containing modified
carbon black

Publication No.: 2001/0009654
Publication Date: July 26, 2001
Inventors: Masayuki Kawazoe and Tetsuji Kawazura

Keywords: Carbon black, lower cost,
superior tan delta temperature dependency,
excellent abrasion resistance,
good electrical conductivity.

Processability of silica-filled rubber
stocks with reduced hysteresis

Publication No.: 2001/0009940
Publication Date: July 26, 2001
Inventors: William L. Hergenrother
and William M. Cole.

Keywords: Processing aid comprising
fatty acid ester of a polyol, used in
tread stocks.

Pneumatic tire

Publication No.: 2001/0017178
Publication Date: August 30, 2001
Inventor: Kazuya Suzuki

[ILLUSTRATION OMITTED]

Vulcanizable rubber mixes

Publication No.: 2001/0012866
Publication Date: August 9, 2001
Inventors: Thomas Fruh, Ludger
Heiliger, Thomas Kleiner, Hermann-Josef
Weidenhaupt, Robert-Hans
Schuster and Joachim Kiesekamp

Keywords: Contains O,O-bis-(alkyl)-dithiophosphoric
acid polysulfides and
primary and/or secondary amines, that
they may be vulcanized without release
of nitrosamines.

Method for building pneumatic tires
in an improved tire mold

U.S. patent: 6,277,317
Issued: August 21, 2001
Inventors: Frederick Forbes Vannan,
Jr., William Allen Rex, Albert James
Yovichin, George Michael Stoila and
Harold Aloysius Wolbert
Assigned: Goodyear Tire & Rubber

Pneumatic tires

Publication No.: 2001/0017177
Publication Date: August 30, 2001
Inventor: Yasuo Himuro
Assigned: Bridgestone

Pneumatic tires

Publication No.: 2001/0017179
Publication Date: August 30, 2001
Inventor: Makoto Tsuruta

[ILLUSTRATION OMITTED]

Nitrile polymer vulcanizate and
process for the production thereof

Publication No.: 2001/0018479
Publication Date: August 30, 2001
Inventor: Ezio Campomizzi

Keywords: An additive comprising a
strong base, a salt of a strong base and
a weak acid, a salt of a weak acid, a
carbodiimidc, a polycarbodiimide and
mixtures thereof

Radial tire crown reinforcement

Publication No.: 2001/0020507
Publication Date: September 13, 2001
Inventors: Pedro Costa Pereira, Yves
Herbelleau
Assigned: Michelin

Pneumatic tire

Publication No.: 2001/0018942
Publication Date: September 6, 2001
Inventors: Shinichi Miyazaki, Takeshi
Ohta, Kazumi Yamazaki, Takuji
Kusumoto and Osamu Toda

Keywords: The belt (A) comprises a
ply made of waved monofilament steel
cords and a ply made of multi-filament
steel cords.

[ILLUSTRATION OMITTED]

Process for the manufacture of a tire
without bead wire

Publication No.: 2001/0020511
Publication Date: September 13, 2001
Inventors: Michel Ahouanto and Luc
Bestgen
Assigned: Michelin

Keywords: The beads are without
anchoring and are reinforced by complexes
of layers of reinforcement elements
of low angle.

Balloons made from liquid crystal
polymer blends

Publication No.: 2001/0019751
Publication Date: September 6, 2001
Inventors: David Ferrera, George
Michaels, Ralph Barry, Lixiao Wang and
Jianhua Chen

Keywords: Crystallizable thermoplastic
polyesters and compatabilized.

[ILLUSTRATION OMITTED]

Incorporating high levels of magnetic
particulate into the rubber matrix of
rubber compounds

Publication No.: 2001/0021729
Publication Date: September 13, 2001
Inventors: Frank Papp, James Glustino
and Duane Oxley

Keywords: Magnetic filled tires,
improved fatigue resistance, improved
crack growth resistance.

Extrusion method and apparatus for
manufacturing tread bands for vehicle
tires

Publication No.: 2001/0022410
Publication Date: September 20, 2001
Inventor: Vincenzo Benatti

[ILLUSTRATION OMITTED]

Precipitated silica beads
U.S. patent: 6,290,924
Issued: September 18, 2001
Inventor: Yvonick Chevallier
Assigned: Rhone-Poulenc Chimie

Keywords: Spherical precipitated silica
beads for the reinforcement of
elastomeric matrices, have a mean
particle size of 80 [micro]m and BET specific
surface area of 60 to 130 [m.sup.2]/g.

Sulfur-vulcanizable butyl rubber
and rubber composition containing
the same
U.S. patent: 6,310,158
Issued: October 30, 2001
Inventors: Kazunori Ishikawa and
Fumito Yatsuyanagi
Assigned: Yokohama Rubber