Flammable propellants in plastic aerosols

Abstract

Plastic aerosol containers larger than 4 ounces can safely contain flammable, liquefied gas propellants when the complete aerosol device takes safety attributes of the plastic aerosol container and the complete aerosol product, rather than relying on the separate attributes of the aerosol composition and the propellant only.

1 . An aerosol device comprising:
 a. a plastic aerosol container having an actuator, a valve, and containing an aerosol product composition comprising:
 i. an aqueous composition; 
 ii. a flammable, liquefied gas propellant; 
   b. wherein the plastic aerosol container has a capacity of more than 4 fluid ounces and less than 1 liter;   c. wherein the combination of said aqueous composition and said propellant has a chemical heat of combustion not exceeding 20 kJ/g;   d. wherein the plastic aerosol container has a minimum burst pressure of at least 210 psig;   e. wherein the pressure inside the plastic aerosol container is no more than 150 psig at 130° F.;   f. wherein the aerosol device has a spray distance of 15 cm or greater; and   g. wherein the aerosol device does not ignite at a distance of 15 cm between a burner flame and the actuator.   
   
   
       2 . The aerosol device of  claim 1 ; wherein the aqueous composition comprises greater than 5% water. 
   
   
       3 . The aerosol device of  claim 1 ; wherein the aqueous composition comprises greater than 50% water. 
   
   
       4 . The aerosol device of  claim 1 ; wherein the pressure inside the plastic aerosol container is greater than 25 psi at 70° F. 
   
   
       5 . The aerosol device of  claim 1 ; wherein the pressure inside the plastic aerosol container is greater than 50 psi at 70° F. 
   
   
       6 . The aerosol device of  claim 1 ; wherein the pressure inside the plastic aerosol container is greater than 75 psi at 70° F. 
   
   
       7 . The aerosol device of  claim 1 ; wherein the propellant comprises a hydrocarbon. 
   
   
       8 . The aerosol device of  claim 1 ; wherein the propellant comprises an alkyl ether. 
   
   
       9 . An aerosol device comprising:
 a. a plastic aerosol container having an actuator, a valve, and containing an aerosol product composition comprising:
 ii. an aqueous composition; 
 iii. a flammable, liquefied gas propellant; 
   b. wherein the combination of said composition and said propellant has a chemical heat of combustion not exceeding 20 kJ/g;   c. wherein the aerosol device has a spray distance of 15 cm or greater; and   d. wherein the aerosol device does not ignite at a distance of 15 cm between a burner flame and the actuator.   
   
   
       10 . The aerosol device of  claim 9 ; wherein the plastic aerosol container has a capacity greater than 4 ounces. 
   
   
       11 . The aerosol device of  claim 9 ; wherein the plastic aerosol container has a capacity greater than 10 ounces. 
   
   
       12 . The aerosol device of  claim 9 ; wherein the aqueous composition comprises greater than 5% water. 
   
   
       13 . The aerosol device of  claim 9 ; wherein the aqueous composition comprises greater than 50% water. 
   
   
       14 . The aerosol device of  claim 9 ; wherein the pressure inside the plastic aerosol container is greater than 25 psi at 70° F. 
   
   
       15 . The aerosol device of  claim 9 ; wherein the pressure inside the plastic aerosol container is greater than 50 psi at 70° F. 
   
   
       16 . The aerosol device of  claim 9 ; wherein the pressure inside the plastic aerosol container is greater than 75 psi at 70° F. 
   
   
       17 . The aerosol device of  claim 9 ; wherein the propellant comprises a hydrocarbon. 
   
   
       18 . The aerosol device of  claim 9 ; wherein the propellant comprises an alkyl ether. 
   
   
       19 . An aerosol device comprising:
 a. a plastic aerosol container having an actuator, a valve, and containing an aerosol product composition comprising:
 ii. an aerosol composition; 
 iii. a flammable, liquefied gas propellant; 
   b. wherein the plastic aerosol container has a minimum burst pressure of at least 210 psig;   c. wherein the combination of said aerosol composition and said propellant has a chemical heat of combustion not exceeding 20 kJ/g;   d. wherein the aerosol device has a spray distance of 15 cm or greater; and   e. wherein the aerosol device does not ignite at a distance of 15 cm between a burner flame and the actuator.   
   
   
       20 . The aerosol device of  claim 19 , wherein the pressure inside the plastic aerosol container is no more than 150 psig at 130° F.