Elastomers having reduced hysteresis prepared with vinyl imidazo

Details Elastomers having reduced hysteresis prepared with vinyl imidazo Elastomers having reduced hysteresis prepared with vinyl imidazo

1993-11-03

1994-09-13

Lipman, Bernard

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

Synthetic resins

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

525244, 525250, C08F27102

Patent

active

053469623

ABSTRACT:
A tire treadstock elastomer having reduced hysteresis is prepared by (1) preparing a living polymer by anionic polymerization of a conjugated diene or copolymerization of a conjugated diene with a monovinyl aromatic hydrocarbon, (2) endcapping the living polymer with at least one equivalent, preferably 3 to 15 equivalents, of a 1-vinylimidazole or 1-vinylbenzimidazole, preferably 1-vinylimidazole; (3) quenching and recovering the endcapped polymer and (4) curing the endcapped polymer using a conventional rubber curing recipe to form an elastomer having reduced hysteresis. This elastomer either alone or blended with a conventional treadstock rubber may form a tire treadstock.

REFERENCES:
patent: 3177190 (1965-04-01), Hsieh et al.
patent: 3451988 (1969-06-01), Langer et al.
patent: 4015061 (1977-03-01), Schulz et al.
patent: 4264753 (1981-04-01), Halasa et al.
patent: 4429091 (1984-01-01), Hall et al.
patent: 4614771 (1986-09-01), Wanatabe et al.
patent: 4616069 (1986-10-01), Wanatabe et al.
patent: 5001196 (1991-03-01), Kawanaka et al.
patent: 5109907 (1992-05-01), Stayer, Jr. et al.
patent: 5151469 (1992-09-01), Hergenrother et al.
patent: 5210144 (1993-05-01), Lawson et al.
patent: 5210145 (1993-05-01), Lawson et al.
T. A. Antkowiak, et al, "Temperature and Concentration Effects on Polar-Modifier Alkyllithium Polymerization and Copolymerization", Journal of Polymer Science, Part A-1, vol. 10, pp. 1319-1334 (1972).
D. N. Schulz, et al, "Anionic Polymerization Initiators Containing Protected Functional Groups and Functionally Terminated Diene Polymers", Journal of Polymer Science, Polymer Chemistry Edition, vol. 12, pp. 153-166 (1974).

Affiliated with

Also associated with

Rating

Elastomers having reduced hysteresis prepared with vinyl imidazo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elastomers having reduced hysteresis prepared with vinyl imidazo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elastomers having reduced hysteresis prepared with vinyl imidazo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1121018