×

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
First Claim
Patent Images

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.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×