Aerosol propellant for personal products

Details Aerosol propellant for personal products Aerosol propellant for personal products

1977-08-05

1979-02-13

Fagelson, Anna P.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

252305, 424 47, C09K 330, A61K 700, A61K 900

Patent

active

041396073

ABSTRACT:
Certain fluorinated dimethyl ethers have been found to possess the stability, the compatibility and sufficient freedom from deleterious physiological effects to be used as aerosol propellants in cosmetic, hygienic, pharmaceutical and other personal products. Bis(difluoromethyl) ether is also free of the chlorine atoms believed responsible for some destruction of ozone in the upper atmosphere. Bis(difluoromethyl) ether and carbon dioxide provides a combined gaseous and liquefied propellant system having improved aerosol pattern and emptying characteristics and eliminates the compressed gas effect usually shown by use of carbon dioxide in propellant systems.

REFERENCES:
patent: 3502588 (1970-03-01), Winberg
patent: 3887439 (1975-06-01), Hutchinson
patent: 3922228 (1975-11-01), Hutchinson
patent: 3996153 (1976-12-01), Heeb
patent: 4041148 (1977-08-01), Simons

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