EP0253663A2
Expired / Lapsed
EP
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Polymer containing amorphous aluminosilicate particles and process for producing the same
Assignee: Kanebo Ltd
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Filing: 1987-07-16
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Granted: —
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Expires: 2007-07-16
Abstract
Abstract A polymer which contains amorphous aluminosilicate particles holding metal ions having a bactericidal action is physically stable and enables an ideal antibacterial or bactericidal action by the antibacterial metal ion in an excited state. The polymer is produced by mixing an organic polymer with said amorphous aluminosilicate solid particles before the polymer is molded. alternatively, the polymer is produced by molding an organic polymer containing amorphous aluminosilicate solid particles, and treating the molded organic polymer with a solution of a water-soluble salt of a metal having a bactericidal action, thereby allowing the metal ions to be held on at least some of the amorphous aluminosilicate solid particles.
Inventors
- 👤 Zenji Hagiwara
- 👤 Satoshi Ando
- 👤 Kunio Ichihashi
- 👤 Akira Dono
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 17:24
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/08; A; A01; A01N; A01N59/00; A01N59/16; A01N59/20; C08J; C08J7/00; C08J7/04; C08J7/06; C08K3/00; C08K3/34; C08K9/02; C08J2483/00; C08J2483/04; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
41 words
A polymer containing amorphous aluminosilicate particles comprising an organic polymer and amorphous aluminosilicate solid particles or amorphous aluminosilicate solid particles treated with a coating agent, at least some of said amorphous aluminosilicate solid particles holding metal ions having a bactericidal action.
Claim 2
Dependent Claim
41 words
A polymer containing amorphous aluminosilicate particles comprising an organic polymer and amorphous aluminosilicate solid particles or amorphous aluminosilicate solid particles treated with a coating agent, at least some of said amorphous aluminosilicate solid particles holding metal ions having a bactericidal action.
Claim 3
Dependent Claim
31 words
A polymer according to claim 1, wherein said amorphous aluminosilicate solid particles have a specific surface area of at least 5 m²/g and a SiO₂/Al₂O₃ molar ratio of at least 1.3.
Claim 4
Dependent Claim
25 words
A polymer according to claim 1 or claim 2 wherein said amorphous aluminosilicate solid particles have an average particle diameter of 20 µm or less.
Claim 5
Dependent Claim
24 words
A polymer according to claim 1, wherein said bactericidal metal ions are held on the ion exchangeable portions of said amorphous aluminosilicate solid particles.
Claim 6
Dependent Claim
34 words
A polymer according to any one of claims 1 to 4, wherein said bactericidal metal ions are one or more metal ions selected from silver, copper, zinc, mercury, tin, lead, bismuth, cadmium and chromium.
Claim 7
Dependent Claim
35 words
A polymer according to any one of claims 1 to 5, wherein the content of said amorphous aluminosilicate solid particles is between 0.005 and 50% by weight inclusive (on the basis of anhydrous amorphous aluminosilicate).
Claim 8
Dependent Claim
43 words
A polymer according to any one of claims 1 to 6, wherein said amorphous aluminosilicate solid particles are treated with a silicone resin coating agent, fluorine resin coating agent or a solution of either one of said coating agents diluted with a solvent.
Claim 9
Dependent Claim
23 words
A polymer according to claim 1 or claim 7, wherein the coating agent content in the amorphous aluminosilicate solid is at least 0.01%.
Claim 10
Dependent Claim
56 words
A process for producing a polymer containing amorphous aluminosilicate particles comprising mixing an organic polymer with amorphous aluminosilicate solid particles holding metal ions having a bactericidal action or amorphous aluminosilicate solid particles holding metal ions having a bactericidal action which have been treated with a coating agent in any step before said organic polymer is molded.
Claim 11
Dependent Claim
56 words
A process for producing a polymer containing amorphous aluminosilicate particles comprising mixing an organic polymer with amorphous aluminosilicate solid particles holding metal ions having a bactericidal action or amorphous aluminosilicate solid particles holding metal ions having a bactericidal action which have been treated with a coating agent in any step before said organic polymer is molded.
Claim 12
Dependent Claim
108 words
A process according to Claim 9, which comprises: (a) using as said coating agent for treating said amorphous aluminosilicate solid particles a silicone resin coating agent, fluorine resin coating agent or a solution of either one of said two coating agents diluted with a solvent; (b) using as said bactericidal metal ions one or more metal ions selected from silver, copper, zinc, mercury, tin, lead, bismuth, cadmium and chromium; and (c) using as said amorphous aluminosilicate solid particles those which have an average particle diameter of 20 µm or less, a specific surface area of at least 5 m²/g, and a SiO₂/Al₂O₃ molar ratio of at least 1.3.
Claim 13
Dependent Claim
61 words
A process for producing a polymer containing amorphous aluminosilicate particles comprising the steps of molding an organic polymer containing amorphous aluminosilicate solid particles, and treating said molded organic polymer with a solution of a water-soluble salt of a metal having a bactericidal action, thereby allowing said metal ions to be held on at least some of said amorphous aluminosilicate solid particles.
Claim 14
Dependent Claim
61 words
A process for producing a polymer containing amorphous aluminosilicate particles comprising the steps of molding an organic polymer containing amorphous aluminosilicate solid particles, and treating said molded organic polymer with a solution of a water-soluble salt of a metal having a bactericidal action, thereby allowing said metal ions to be held on at least some of said amorphous aluminosilicate solid particles.
Claim 15
Dependent Claim
84 words
A process according to Claim 11, which comprises the steps of: (a) molding an organic polymer containing amorphous aluminosilicate solid particles (non-antibacterial) having an average particle diameter of 20 µm or less, a specific surface area of at least 5 m²/g, and a SiO₂/Al₂O₃ molar ratio of at least 1.3; and (b) treating said molded polymer with a water-soluble salt solution containing one or more bactericidal metal ions selected from the group consisting of silver, copper, zinc, mercury, tin, lead, bismuth, cadmium and chrominum.
References Cited (Backward Citations)
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