Aqueous rubberized coal tar emulsion

Details Aqueous rubberized coal tar emulsion Aqueous rubberized coal tar emulsion

1983-07-27

1985-10-01

Lieberman, Allan M.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

404 17, 404 31, 524 66, C08L 2510, C08L 9500

Patent

active

045446903

ABSTRACT:
An aqueous rubberized coal tar emulsion composition especially suitable for coating and sealing bituminous substrates containing asphalt such as asphalt pavement and the like, the coal tar emulsion composition comprising a major portion of commercial coal tar emulsion and water admixed with a small amount of a carboxylated butadiene/styrene/acid copolymer latex having a particular particle size. The emulsion composition may additionally include a fine aggregate filler material such as sand. The coal tar emulsion composition according to the invention is of a thixotropic nature and has the ability to maintain the fine aggregate when added and mixed therein in a homogeneous-like suspension. The emulsion composition when spread on an asphalt surface exhibits a high degree of spreadability and provides a sealing coating that has a long life.

REFERENCES:
patent: 2670332 (1954-02-01), McCoy et al.
patent: 2972588 (1961-02-01), Cohen
patent: 3835117 (1974-09-01), Walaschek
patent: 3897380 (1975-07-01), Walaschek
patent: 4045395 (1977-08-01), Ruby
Boundy et al., "Styrene, Its Polymers, Copolymers and Derivatives", ACS Monograph, 1962, p. 285.

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