EP0488269A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
An antibacterial and antifungal composition
Assignee: Panasonic Holdings Corp
•
Filing: 1991-11-28
•
Granted: —
•
Expires: 2011-11-28
Abstract
Abstract An antibacterial and antifungal composition which comprises an antibacterial and antifungal material carried on a porous particle carrier is provided. Preferably, the porous particle carrier is a silica gel particle. For the antibacterial and antifungal material used in this invention, at least one substance selected from the group consisting of metal complex salts, plant extracts, quarternary ammonium salts and chlorhexidine or its derivatives is used. At least a portion of the surface of the above-mentioned carrier having the antibacterial and antifungal composition can be coated with a coating material. It is possible to use the antibacterial and antifungal composition obtained as described above by being contained in a resin, and also, in a caulking base material.
Inventors
- 👤 Toshikazu Tomioka
- 👤 Katsumi Tomita
- 👤 Mariko Tomita
- 👤 Atsushi Nishino
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 07:03
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; A; A01; A01N; A01N25/00; A01N25/08; A01N25/34; A01N59/00; A01N59/16; A01N59/20
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
19 words
An antibacterial and antifungal composition comprising an antibacterial and antifungal material which is carried on a porous particle carrier.
Claim 2
Dependent Claim
16 words
An antibacterial and antifungal composition of claim 1, wherein said carrier is a silica gel particle.
Claim 3
Dependent Claim
21 words
An antibacterial and antifungal composition of claim 2, wherein said antibacterial and antifungal material is at least one metal complex salt.
Claim 4
Dependent Claim
34 words
An antibacterial and antifungal composition of claim 3, wherein said antibacterial and antifungal material further comprises at least one substance selected from the group consisting of plant extracts, quarternary ammonium salts, and chlorhexidine derivatives.
Claim 5
Dependent Claim
18 words
An antibacterial and antifungal composition of claim 3, wherein said metal complex salt comprises silver, copper, or zinc.
Claim 6
Dependent Claim
19 words
An antibacterial and antifungal composition of claim 3, wherein said metal complex salt is a metal thiosulfate complex salt.
Claim 7
Dependent Claim
21 words
An antibacterial and antifungal composition of claim 5 or 6, wherein said metal complex salt is a silver thiosulfate complex salt.
Claim 8
Dependent Claim
29 words
An antibacterial and antifungal composition of claim 2, wherein said material is at least one selected from the group consisting of plant extracts, quarternary ammonium salts, and chlorhexidine derivatives.
Claim 9
Dependent Claim
25 words
An antibacterial and antifungal composition of claim 2, wherein said carrier is Type B silica gel particle defined in Japanese Industrial Standard JIS Z 0701.
Claim 10
Dependent Claim
23 words
An antibacterial and antifungal composition of claim 2, wherein said carrier is a silica gel particle with average particle size of 1-10 µm.
Claim 11
Dependent Claim
33 words
An antibacterial and antifungal composition of claim 2, wherein at least a portion of the surface of said silica gel particle having the antibacterial and antifungal material is coated with a coating material.
Claim 12
Dependent Claim
33 words
An antibacterial and antifungal composition of claim 11, wherein said coating material is at least one selected from the group consisting of reactive organic silicon compounds, wax, and stearic acid or its derivatives.
Claim 13
Dependent Claim
40 words
An antibacterial and antifungal composition of claim 12, wherein said porous particle carrier is a silica gel particle, said coating material is a reactive organic silicon compound, and the silica gel particle and the organic silicon compound are chemically bound.
Claim 14
Dependent Claim
20 words
An antibacterial and antifungal resin comprising a resin which contains an antibacterial and antifungal composition of claim 1 or 11.
Claim 15
Dependent Claim
22 words
An antibacterial and antifungal caulking material comprising a base material which contains an antibacterial and antifungal composition of claim 1 or 11.
Claim 16
Dependent Claim
17 words
An antibacterial and antifungal caulking material of claim 15, wherein said base material is a silicone gum.
Claim 17
Dependent Claim
26 words
An antibacterial and antifungal composition of claim 1, wherein said carrier is a zeolite particle and said antibacterial and antifungal material is a silver complex salt.
Claim 18
Dependent Claim
34 words
An antibacterial and antifungal composition of claim 17, wherein at least a part of the surface of said zeolite particle on which said silver complex salt is carried is coated with a coating material.
Claim 19
Dependent Claim
55 words
An antibacterial and antifungal composition of claim 1, wherein said carrier is a zeolite particle, said antibacterial and antifungal material is silver or a compound containing silver, and at least a part of the surface of said zeolite particle on which silver, or the compound containing silver is carried, is coated with a coating material.
Claim 20
Independent Claim
51 words
A method for the production of an antibacterial and antifungal composition comprising the steps of: preparing a solution of an antibacterial and antifungal material; and mixing the solution and a porous particle carrier, and drying the mixture to allow the antibacterial and antifungal material to be carried on the porous carrier.
Claim 21
Dependent Claim
45 words
A method for the production of an antibacterial and antifungal composition of claim 20, further comprising the step of coating at least a portion of the surface of said carrier on which the antibacterial and antifungal material is carried is coated with a coating material.
Claim 22
Dependent Claim
57 words
The method for the production of an antibacterial and antifungal composition of claim 20 or 21 comprising the steps of: preparing a metal thiosulfate complex salt solution; and mixing the metal thiosulfate complex salt solution and silica gel particles, and drying the mixture to allow the metal thiosulfate complex salt to be carried on the silica particles.
Claim 23
Dependent Claim
57 words
A method for the production of an antibacterial and antifungal composition of claim 22, wherein said step for preparing the metal thiosulfate complex salt comprises the process of: adding at least one salt selected from the group consisting of sulfite and bisulfite to an aqueous solution of a metal salt; and adding thiosulfate to the aqueous solution.
Claim 24
Dependent Claim
38 words
A method for the production of an antibacterial and antifungal composition of claim 22, wherein said step for preparing the metal thiosulfate complex salt comprises the process of adding a metal salt to an aqueous solution of thiosulfate.
Claim 25
Dependent Claim
42 words
A method for the production of an antibacterial and antifungal composition of claim 23 or 24, wherein said metal thiosulfate complex salt is used in an amount of 100-1000 parts by weight for every 100 parts by weight of said metal salt.
Claim 26
Dependent Claim
24 words
A method for the production of an antibacterial and antifungal composition of claim 23 or 24, wherein said metal salt is a silver salt.
Claim 27
Dependent Claim
48 words
A method for the production of antibacterial and antifungal composition of claim 23 or 24, wherein said metal salt is a silver salt, and said thiosulfate and the silver salt are used in the ratio ranging from 2 to 6 in terms of the weight ratio of S₂O₃²⁻/Ag⁺.
Claim 28
Dependent Claim
23 words
A method for the production of an antibacterial and antifungal composition of claim 23 or 24, wherein said metal salt is silver acetate.
Claim 29
Dependent Claim
73 words
A method for the production of an antibacterial and antifungal composition of claim 21, wherein said porous particle carrier is a silica gel particle, said coating material is a reactive organic silicon compound, and at least a portion of the surface of said silica gel particle is coated with the reactive organic silicon compound, thereby forming a chemical bonding between said organic silicon compound and said particle in the step of the coating.
References Cited (Backward Citations)
FR2364686A1
Cited
EP0103214A2
Cited
EP0116865A1
Cited
EP0253663A2
Cited
EP0270129B1
Cited
EP0288063B1
Cited
EP0294206A2
Cited
EP0392262A2
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.