Diene polymers and copolymers incorporating partial coupling and

Details Diene polymers and copolymers incorporating partial coupling and Diene polymers and copolymers incorporating partial coupling and

1997-07-11

1999-12-28

Moore, Margaret Glass

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525101, 5253329, 525371, 524506, 524521, 524448, 524449, 524445, 524423, 524424, 524437, C08F 842

Patent

active

06008295&

ABSTRACT:
Diene polymers or copolymers having improved balance between raw polymer viscosity and mixed compound viscosity, useful in tire tread compositions having highly balanced wet traction, rolling resistance, and traction in ice and snow, and fracture properties in the cured and white carbon reinforced states are provided. These diene polymers or copolymers comprise a mixture of diene polymer or copolymer chains containing carbon-tin bonds in the main polymer or copolymer chains and diene polymer or copolymer chains containing terminals derived from hydrocarboxysilane compounds. The diene polymer or copolymers are prepared by first coupling a portion of the living diene polymer or copolymer chains obtained by anionic polymerization using a tin polyhalide coupling agent and then terminating the remaining living diene polymer or copolymer chains using hydrocarboxysilane compounds. The resultant diene polymers or copolymers have improved balance between raw polymer viscosity and mixed compound viscosity when compounded with silica and/or carbon black and cured compositions are useful in tire tread having highly balanced wet traction, rolling resistance, and traction in ice and snow. The polymers can be utilized to form elastomer compositions for tire treads having balanced properties of reduced rolling resistance and wet traction and handling or balanced properties of wet traction and handling and traction in snow and ice.

REFERENCES:
patent: 3451988 (1969-06-01), Langer et al.
patent: 4264753 (1981-04-01), Halasa et al.
patent: 4383085 (1983-05-01), Fujimaki et al.
patent: 4429091 (1984-01-01), Hall
patent: 4519431 (1985-05-01), Yoshimura et al.
patent: 4526934 (1985-07-01), Oshima et al.
patent: 4603722 (1986-08-01), Oshima et al.
patent: 5066729 (1991-11-01), Stayer, Jr. et al.
patent: 5331035 (1994-07-01), Hall
patent: 5395902 (1995-03-01), Hall
patent: 5614579 (1997-03-01), Roggeman et al.
patent: 5798419 (1998-08-01), Ruiz Santa Quiteria et al.

Affiliated with

Also associated with

Rating

Diene polymers and copolymers incorporating partial coupling and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Diene polymers and copolymers incorporating partial coupling and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diene polymers and copolymers incorporating partial coupling and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2382980