US1496279A - Naphthalene insect tablet - Google Patents

Naphthalene insect tablet Download PDF

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Publication number
US1496279A
US1496279A US573434A US57343422A US1496279A US 1496279 A US1496279 A US 1496279A US 573434 A US573434 A US 573434A US 57343422 A US57343422 A US 57343422A US 1496279 A US1496279 A US 1496279A
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United States
Prior art keywords
naphthalene
tablet
borneol
insect
camphor
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US573434A
Inventor
Shibata Yoshichi
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Individual
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Individual
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Publication date
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Priority to US573434A priority Critical patent/US1496279A/en
Application granted granted Critical
Publication of US1496279A publication Critical patent/US1496279A/en
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Expired - Lifetime legal-status Critical Current

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  • the tablets are found to vaporize very uniformly, giving off constantly a mixture of the vapors of-naphtha'lene, perfuming agent and borneol or camphor in approximately the same proportions, in which they are present in the tablets.- This is on account of the very complete and thoroughly intermixing of the ingredients;
  • the manufacture of these tablets is preferably conducted. by melting naphthalene and heating the same to 120 (3., some perfume being added, together with 10 to 20% or so of borneol or camphor.
  • the borneol or camphor will be found to readily dissolve in the molten mass. Drops of this are allowed to fall into water, and the sudden cooling converts these "drops into granules, which possessa rough exterior and are Weak.
  • the melting point of borneol is 203 (1., and that of camphor is C, while the melting point of naphthalene is only 79 (1., the aflinity of these substances for each other makes a perfect blend on account of the melting and solution of the borneol or camphor in the molten naphthalene.
  • a borneol compound is hereinafter used to embrace both borneol itself and camphor.
  • a method'of making naphthalene insect tablets,-containing a perfume which comprises forming a molten mixture of ii'aphthalene, a borneol compound and a perfume, then running this in the form of smalb masses-into cold water to congeal the same, and then pressing the granules'into tablet 95 form.

Description

Patented June 3, 1924.
res PATENT OFFICE.
xosm'cnr Samara, or nmomaasnr-xu, roxyaaaran.
. NAPHTHALENE No Drawing. Application filed July 7,
To all whom it may concern:
Be it known that I, YOSHICHI S HrBA'rA, subject of the Emperor of Japan, res ding at No. 6 Iwatsuki-cho, Nihonbashi-ku, Tokyo,-
, the solution obtained by heating at far lower degree than the melting point of the borneol or' camphor into water through a funnel provided with a plurality of holes. Tablets are then made from these granules after being congealed in water, by being pressed in a tablet-machine.
Ordinary tablets-made by mixing powdered naphthalene with borneol or camphor and a'perfuming material, vaporize very unequally. This is probably due to the fact that the perfume vaporizes much more readily than the other materials; t
In accordance with the present invention, however, the tablets are found to vaporize very uniformly, giving off constantly a mixture of the vapors of-naphtha'lene, perfuming agent and borneol or camphor in approximately the same proportions, in which they are present in the tablets.- This is on account of the very complete and thoroughly intermixing of the ingredients;
The manufacture of these tablets is preferably conducted. by melting naphthalene and heating the same to 120 (3., some perfume being added, together with 10 to 20% or so of borneol or camphor. The borneol or camphor will be found to readily dissolve in the molten mass. Drops of this are allowed to fall into water, and the sudden cooling converts these "drops into granules, which possessa rough exterior and are Weak. Dur
ing this operation the water should be stirred up or should be renewed from time" totime tokeep the same cold.
INSECT TABLET.
1922. Serial no. 573,484.
The following examples are given of the proportions which may be employed Ewample 1.
. Parts. Naphthalene Borneol 10 Perfume essence 5 Example 2. 9
' Parts. Naphthalene 100 .Camphor 15 Perfume essence 5 D These materials are, on account of the mode of preparation combined together very thoroughly and hence each'materia'l is so held in the tablet that it cannot vaporize independently from the other ingredients, but 7' all of the ingredients together vaporize gradually in. about the proportion in which they are mixed in the tablets. The tablets are easily shaped in the tablet-machine from the granules, and it is not necessary to 7:, previously grind up the ingredients.
Although the melting point of borneol is 203 (1., and that of camphor is C, while the melting point of naphthalene is only 79 (1., the aflinity of these substances for each other makes a perfect blend on account of the melting and solution of the borneol or camphor in the molten naphthalene.
The expression a borneol compound is hereinafter used to embrace both borneol itself and camphor.
-I claim: 9
A method'of making naphthalene insect tablets,-containing a perfume, which comprises forming a molten mixture of ii'aphthalene, a borneol compound and a perfume, then running this in the form of smalb masses-into cold water to congeal the same, and then pressing the granules'into tablet 95 form.
In testimony whereof I affix my signature, I
YOSHICHI SHIBATA.
Witness: l
.N. HARASHIMA.
US573434A 1922-07-07 1922-07-07 Naphthalene insect tablet Expired - Lifetime US1496279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US573434A US1496279A (en) 1922-07-07 1922-07-07 Naphthalene insect tablet

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US573434A US1496279A (en) 1922-07-07 1922-07-07 Naphthalene insect tablet

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US1496279A true US1496279A (en) 1924-06-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485339A (en) * 1945-08-22 1949-10-18 Tno Aqueous fungicidal dispersions of salicylanilide
US2789078A (en) * 1953-04-20 1957-04-16 Davies Young Soap Company Disinfecting and deodorizing compositions and method of using same
US3184378A (en) * 1954-01-26 1965-05-18 Lee Nusbaum Insecticides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485339A (en) * 1945-08-22 1949-10-18 Tno Aqueous fungicidal dispersions of salicylanilide
US2789078A (en) * 1953-04-20 1957-04-16 Davies Young Soap Company Disinfecting and deodorizing compositions and method of using same
US3184378A (en) * 1954-01-26 1965-05-18 Lee Nusbaum Insecticides

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