Blending bitumen into polyisobutylene-ethylene/vinyl acetate mix

Details Blending bitumen into polyisobutylene-ethylene/vinyl acetate mix Blending bitumen into polyisobutylene-ethylene/vinyl acetate mix

1994-02-17

1994-11-29

Sellers, Robert E.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 69, 523351, C08K 501

Patent

active

053691563

ABSTRACT:
A bitumenous binder useful in road surfacing is prepared via the blending of from 1-35% by weight of bitumen with a mixture of an ethylene/vinyl acetate copolymer and polyisobutylene having a number average molecular weight of greater than 400 to less than 1,000 wherein the ratio of polyisobutylene:ethylene/vinyl acetate is between 90:10 and 50:50.

REFERENCES:
patent: 3414533 (1968-12-01), Trieschmann et al.
patent: 4613632 (1986-09-01), Aliani et al.
patent: 4728683 (1988-03-01), Smits et al.

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