Aqueous dispersions of olefinic resin compositions and process f

Details Aqueous dispersions of olefinic resin compositions and process f Aqueous dispersions of olefinic resin compositions and process f

1976-07-20

1979-11-13

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 297D, 260 297UA, 260 297W, 525 71, 525 78, 525 82, 525418, 525191, 525301, 525306, 525313, 525240, C08L 2308, C08J 304

Patent

active

041743350

ABSTRACT:
An aqueous dispersion of an olefinic resin composition having improved properties which comprises mixing an olefinic resin composition comprising (a) 50 to 99% by weight of a carboxyl-free olefinic resin having an intrinsic viscosity of 0.1 to 5 and (b) 1 to 50% by weight of a carboxyl-containing modified olefinic resin having an intrinsic viscosity of 0.04 to 1 and an acid number of 30 to 150, the amount of each resin being based on the total amount of resins (a) and (b), which has been melted by heating to a temperature above the melting point, whichever is higher, of the resins, with an aqueous medium heated to a temperature of 140 to 300.degree. C. in the presence of at least 0.2 chemical equivalent, to the carboxyl groups of resin (b), of a base.

REFERENCES:
patent: 2496989 (1950-02-01), Cupery
patent: 3356629 (1967-12-01), Smith et al.
patent: 3475369 (1969-10-01), Blunt
patent: 3483276 (1969-12-01), Mahlman
patent: 3485785 (1969-12-01), Anspon et al.
patent: 3658948 (1972-04-01), McConnell
patent: 3689445 (1972-09-01), Hopwood et al.
patent: 3769151 (1973-10-01), Knutson et al.

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