Device and method for vaporizing thermally vaporizable composition

• US 4,663,315 A
• Filed: 11/14/1985
• Issued: 05/05/1987
• Est. Priority Date: 01/31/1984
• Status: Expired due to Term

• Current Assignee: Earth Chemical Company Limited (Earth Corp.)
• Original Assignee: Earth Chemical Company Limited (Earth Corp.)
• Inventors: Hasegawa, Takahiro, Nishimura, Akira, Kashihara, Takanobu
• Primary Examiner(s): Lovering, Richard D.
• Application Number:
  US06/797,196
• Time in Patent Office: 537 Days
• Field of Search: 252/1, 252/305, 252/522 R, 424/43, 424/76, 514/530, 514/531, 514/918, 514/957, 514/86, 239/44, 239/47
• US Class Current: 424/76.3
• CPC Class Codes: A01M 1/2077 using an electrical resistance as heat source A01M1/2083 takes precedence
• CPC Class Codes: A61L 9/037 comprising a wick

Abstract

The invention provides a method of vaporizing and a device capable of thermally vaporizing a thermally vaporizable composition being drawn up by a porous absorbing body due to its capillary attraction.

Claims

1. A device for vaporizing a thermally vaporizable composition, the device comprising a container for accommodating the thermally vaporizable composition, an absorbing body disposed in the container with its upper portion projecting from the container and set in contact with the vaporizable compositions to draw up the vaporizable composition by capillary attraction and a heating means for indirectly heating the upper portion of the absorbing body, whereby the composition being drawn up through the absorbing body is volatilized off the heated upper portion of the absorbing body, the vaporizable composition comprising an organic solvent, an active ingredient and at least one compound selected from the group consisting of:

3,5-di-t-butyl-4-hydroxytoluene, 3-t-butyl-4-hydroxyanisole, mercaptobenzimidazole, dilauryl-thio-di-propionate, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2,6-di-t-butyl-4-ethylphenol, stearyl-β

-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, α

-tocopherol, ascorbic acid, erythorbic acid, 2,2'"'"'-methylene-bis(6-t-butyl-4-methylphenol), 4,4'"'"'-methylene-bis(2,6-di-t-butyl-phenol), 4,4'"'"'-butylidene-bis(6-t-butyl-3-methylphenol), 4,4'"'"'-thio-bis(6-t-butyl-3-methylphenol), 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, tris(2-methyl-4-hydroxy-5-t-butylphenyl)butane, tetrakis[methylene(3,5-di-t-butyl-4-hydroxyhydrocinnamate)]methane, octadecyl-3,5-di-t-butyl-4-hydroxyhydrocinnamate, phenyl-β

-naphthylamine, N,N-diphenyl-p-phenylenediamine, 2,2,4-trimethyl-1,3-dihydroquioline polymer and 6-ethoxy-2,2,4-trimethyl-1,3-dihydroquinoline, said composition comprising about 1% to about 10% by weight of the active ingredient and about 0.2 to about 1.0% by weight of the selected compound.

2. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is an insecticide.

3. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a deodorant.

4. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a natural perfume.

5. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is an artificial perfume.

6. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is an industrial bactericide or fungicide.

7. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is an agricultural bactericide or fungicide.

8. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a vermin repellent.

9. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a rodent repellent.

10. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a dog and cat repellent.

11. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a bird repellent.

12. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a rodenticide.

13. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the active ingredient is a formicide.

14. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the solvent is at least one of aliphatic hydrocarbons having a boiling point in the range of about 150°

to about 350°

C.

15. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the solvent is at least one of glycerin, propylene glycol, methanol, acetone, benzene, xylene, chlorsen, isopropanol, solvent naphtha, methyl naphthalene, aromatic naphtha and chloroform.

16. A device for vaporizing a thermally vaporizable composition as defined in claim 1 wherein the composition comprises about 3 to about 8% by weight of the active ingredient and about 0.3 to about 0.9% by weight of the compound.

17. A method of vaporizing a thermally vaporizable composition comprising heating indirectly the upper portion of an absorbing body whereby the composition being drawn up through the absorbing body is volatilized off the heated upper portion of the absorbing body, said composition comprising an organic solvent, an active ingredient and at least one compound selected from the group consisting of:

3,5-di-t-butyl-4-hydroxytoluene, 3-t-butyl-4-hydroxy-anisole, mercaptobenzimidazole, dilauryl-thio-di-propionate, 2-t-butyl-4-methoxyphenol, 3-t-butyl-4-methoxyphenol, 2,6-di-t-butyl-4-ethylphenol, stearyl-β

-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, α

-tocopherol, ascorbic acid, erythorbic acid, 2,2'"'"'-methylene-bis(6-t-butyl-4-methylphenol), 4,4'"'"'-methylene-bis(2,6-di-t-butylphenol), 4,4'"'"'-butylidene-bis(6-t-butyl-3-methylphenol), 4,4'"'"'-thio-bis(6-t-butyl-3-methylphenol), 1,1-bis(4-hydroxyphenyl)-cyclohexane, 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)-benzene, tris(2-methyl-4-hydroxy-5-t-butyl-phenyl)butane, tetrakis[methylene(3,5-di-t-butyl-4-hydroxyhydrocinnamate)]methane, octadecyl-3,5-di-t-butyl-4-hydroxyhydrocinnamate, phenyl-β

-naphtylamine, N,N-diphenyl-p-phenylenediamine, 2,2,4-trimethyl-3,3-dihydroquinoline polymer and 6-ethoxy-2,2,4-trimethyl-1,3-dihydroquinoline said composition comprising about 1% to about 10% by weight of the active ingredient and about 0.2 to about 1.0% by weight of the selected compound.

18. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is an insecticide.

19. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a deodorant.

20. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a natural perfume.

21. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is an artificial perfume.

22. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is an industrial bactericide or fungicide.

23. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is an agricultural bactericide or fungicide.

24. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a vermin repellent.

25. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a rodent repellent.

26. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a dog and cat repellent.

27. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a bird repellent.

28. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a rodenticide.

29. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the active ingredient is a formicide.

30. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the solvent is at least one of aliphatic hydrocarbons having a boiling point in the range of about 150°

to about 350°

C.

31. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the solvent is at least one of glycerin, propylene glycol, methanol, acetone, benzene, xylene, chlorsen, isopropanol, solvent naphtha, methyl napthalene, aromatic naphtha and chloroform.

32. A method of vaporizing a thermally vaporizable composition as defined in claim 17, wherein the composition comprises about 3 to about 8% by weight of the active ingredient and about 0.3 to about 0.9% by weight of the compound.