Process for preparing alcohol soluble condensates of abietic aci

Details Process for preparing alcohol soluble condensates of abietic aci Process for preparing alcohol soluble condensates of abietic aci

1978-09-20

1980-10-21

Ore, Dale R.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

424 70, 424359, A61K 711

Patent

active

042294290

ABSTRACT:
Resin-forming condensates of abietic acid and a protein hydrolysate are prepared which are completely soluble in absolute alcohol at a concentration of about 2 percent. An aqueous solution of a water soluble salt of a condensate of abietic acid with a protein hydrolysate is acidified from a pH above about 6 to a pH in the range of about 4 to 5 to precipitate a portion of the condensate while leaving another portion thereof in solution. The precipitated solution of the condensate is the alcohol soluble product of the process.

REFERENCES:
patent: 2100090 (1937-11-01), Sommer et al.
patent: 2151241 (1939-03-01), Sommer et al.
patent: 2440555 (1948-04-01), Omohundro et al.
patent: 3954725 (1976-05-01), Johnsen et al.
Lamepon PA-TR, Provisional leaflet-Chemisch Fabrik.

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