Thermally diffusible composites
AssigneeToyo Ink Manufacturing Co., Ltd.
InventorsKeisuke Kaiho, Risaburo Yoshida, Yusaku Ide, Takeshi Hirose
Life of this patent
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Abstract
A thermally diffusible composite comprising a thermally diffusible medicine such as allethrin, a thermogenic composition including an alkali metal sulphide or the like, carbonaceous material or the like and, if desired, a filler such as cellulose. In one embodiment, this invention relates to such a thermally diffusible composite the thermogenic composition or the whole of which is enclosed in an oxygen-impermeable container.
Claims34
A thermally diffusible composite comprising:
- (1) a thermally diffusible medicine for expelling or exterminating noxious organisms and
- (2) a thermogenic composition as the heat source for said thermally diffusible medicine, comprising
- (A) at least one member selected from the group consisting of sulphides, polysulphides and hydrosulphides of alkali metals, and hydrates thereof and
- (B) at least one member selected from the group consisting of carbonaceous material, iron carbide and activated clay.
A thermally diffusible composite according to clalim 1 or 3, wherein the thermogenic composition further comprises (C) a filler.
A thermally diffusible composite in enclosed state, comprising:
- (1) a thermally diffusible medicine for expelling or exterminating noxious organisms,
- (2) a thermogenic composition as the heat source for said thermally diffusible medicine, comprising
- (A) at least one member selected from the group consisting of sulphides, polysulphides and hydrosulphides of alkali metals, and hydrates thereof,
- (B) at least one member selected from the group consisting of carbonaceous material, iron carbide and activated clay and
- (3) an oxygen-impermeable container enclosing the diffusible medicine (1) and the thermogenic composition (2).
A thermally diffusible composite in enclosed state, comprising:
- (1) a thermally diffusible medicine for expelling or exterminating noxious organisms,
- (2) a thermogenic composition as the heat source for said thermally diffusible medicine, comprising
- (A) at least one member selected from the group consisting of sulphides, polysulphides and hydrosulphides of alkali metals, and hydrates thereof and
- (B) at least one member selected from the group consisting of carbonaceous material, iron carbide and activated clay,
- (3) an oxygen-impermeable container having an opening, which encloses the thermogenic composition (2) therein and onto which the thermally diffusible medicine (1) is attached in the form of a layer,
- (4) a filter provided on the container (3) to cover said opening, the filter preventing passage of the thermogenic composition therethrough from the container (3) and being permeable to oxygen, and
- (5) a member made of an oxygen-impermeable material airtightly covering said filter-covered opening.
A thermally diffusible composite in enclosed state, comprising:
- (1) a thermally diffusible medicine for expelling or exterminating noxious organisms,
- (2) a thermogenic composition as the heat source for said thermally diffusible medicine, comprising
- (A) at least one member selected from the group consisting of sulphides, polysulphides and hydrosulphides of alkali metals, and hydrates thereof and
- (B) at least one member selected from the group consisting of carbonaceous material, iron carbide and activated clay,
- (3) an oxygen-impermeable container having an opening, which encloses the thermogenic composition (2) therein and onto which the thermally diffusible medicine (1) is attached in the form of a layer,
- (4) a filter provided on the container (3) to cover said opening, the filter preventing passage of the thermogenic composition therethrough from the container (3) and being permeable to oxygen, and
- (5) a member made of an oxygen-impermeable material airtightly enclosing the whole of the medicine (1)-attached container therein.
Dependencies are inferred from the claim text.