Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1988-08-04
1991-09-03
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 61, 524250, 524251, 2523115, C08K 9500
Patent
active
050455761
ABSTRACT:
The present invention provides for a method of converting an anionic latex to a cationic latex by the addition of a steric stabilizer and a cationic surfactant. The invention also provides for a method of using the cationic latex prepared by the conversion, in an asphalt emulsion. The converted latex provides improved torsional recovery properties to the cured asphalt emulsion.
REFERENCES:
patent: 3867162 (1975-02-01), Elste, Jr.
patent: 3933710 (1976-01-01), Fukushi et al.
patent: 3979916 (1976-09-01), Califano et al.
patent: 4791161 (1988-12-01), Leising
Galloway James G.
Roeck Jesse S.
Snyder Ronald E.
Schofer Joseph L.
Sweet Mark
The Dow Chemical Company
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