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EP0154513A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Glass compositions for bonding to alloys

Assignee: Cambio Ragione Sociale howmedica Inc
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Filing: 1985-02-28
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Granted: —
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Expires: 2005-02-28
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Abstract

Abstract Glass compositions comprising, in percentage by weight based on the total weight of the composition, the following ingredients: SiO2 - about 43-48; Na2O - about 18-21; CaO - about 19-22; B2O3 - about 4-15 and P2O5 - about 4-10, said ingredients totalling 100%, are highly suitable for application to cobalt-chromium-molybdenum surgical implant alloys by conventional coating techniques.

Inventors

  • 👤 David Charles Greenspan

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 19:52
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/02; A; A61; A61L; A61L27/00; A61L27/28; A61L27/30; A61L27/306; A61L27/32; C03C3/00; C03C3/04; C03C3/076; C03C3/097; C23; C23D; C23D5/00; A61F; A61F2310/00; A61F2310/00389; A61F2310/00592; A61F2310/00796

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 28 words
A glass composition comprising, in percentages by weight based on the total weight of the composition, the following ingredients: the total of said ingredients being ]00 % .
Claim 2
Dependent Claim 28 words
A glass composition comprising, in percentages by weight based on the total weight of the composition, the following ingredients: the total of said ingredients being ]00 % .
Claim 3
Dependent Claim 20 words
A composition according to claim 1 characterized in that the softening temperature of the composition is from 569° to 584°C.
Claim 4
Dependent Claim 26 words
A composition according to claim 1 or 2, characterized in that the coefficient of thermal expansion of the composition is about 13.21 x 10 -6 /°C.
Claim 5
Dependent Claim 11 words
A composition according to claim 1, comprising in percentages by weight:
Claim 6
Dependent Claim 11 words
A composition according to claim 1, comprising in percentages by weight:
Claim 7
Dependent Claim 13 words
A composition according to claim 1 characterized by comprising in percentages by weight:
Claim 8
Dependent Claim 44 words
A coated substrate which comprises a metallic substrate and a coating comprising a glass composition as claimed in claim 1, the metallic substrate being an alloy having a thermal expansion coefficient which is essentially identical to the thermal expansion coefficient of the glass composition.
Claim 9
Dependent Claim 37 words
A coated substrate according to claim 7 wherein the metallic substrate is an alloy comprising the following ingredients in percentages by weight based on the total weight of the alloy: the total of said ingredients being 100%.
Claim 10
Dependent Claim 20 words
A coated substrate according to claim 7 or 8 characterized in that the glass composition comprises in percentages by weight:
Claim 11
Dependent Claim 20 words
A coated substrate according to claim 7 or 8 characterized in that the glass composition comprises in percentages by weight:
Claim 12
Dependent Claim 20 words
A coated substrate according to claim 7 or 8 characterized in that the glass composition comprises in percentages by weight:
Claim 13
Dependent Claim 25 words
A coated substrate according to claim 7 or 8 wherein the glass composition is a composition as-claimed in any one of claims 4 to 6.
Claim 14
Dependent Claim 21 words
A coated substrate according to any one of claims 8 to 12 characterized in that said substrate is a surgical implant.

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