Patent US4129548A successfully refreshed from Google Patents.
US4129548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardenable resin compositions
Assignee: Metalife Molecular Belzona Ltd
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Filing: 1977-07-05
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Granted: 1978-12-12
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Expires: 1997-07-05
Abstract
Abstract A composition comprising a liquid polymerizable resin and an alloy of iron and silicon, known as ferrosilicon, for use as a metal repair or reclamation material. The invention also includes a two-component pack including the liquid polymerizable resin as one component and a catalyst or hardener therefor as the other component, ferrosilicon being present in one or both components.
Inventors
- 👤 Christopher R. S. McDonnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:11
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; C; C08; C08K; C08K3/00; C08K3/02; C08K3/08; C08K3/10; C08K3/34; C09; C09K; C09K3/00; C09K3/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
32 words
A method of repairing metal parts comprising replacing worn or damaged portions of metal in said parts with a composition comprising a liquid polymerizable resin, ferrosilicon, and a hardener for said resin.
Claim 2
Independent Claim
32 words
A method of repairing metal parts comprising replacing worn or damaged portions of metal in said parts with a composition comprising a liquid polymerizable resin, ferrosilicon, and a hardener for said resin.
Claim 3
Dependent Claim
14 words
A method according to claim 1 wherein the liquid resin includes an epoxy resin.
Claim 4
Dependent Claim
42 words
A method according to claim 1 wherein the liquid resin includes at least one resin selected from the group consisting of a saturated polyester, a polyurethane, a polyamine, a polyamide, a polymercapton, a silicone, an unsaturated polyester, an acrylate and a methacrylate.
Claim 5
Dependent Claim
20 words
A method according to claim 1 herein the ferrosilicon is an angular or spherical powder or a blend of both.
Claim 6
Dependent Claim
27 words
A method according to claim 1 wherein the silicon content of the ferrosilicon is from 10 to 80 parts by weight per 100 parts by weight ferrosilicon.
Claim 7
Dependent Claim
27 words
A method according to claim 1 wherein the silicon content of the ferrosilicon is from 10 to 20 parts by weight per 100 parts by weight ferrosilicon.
Claim 8
Dependent Claim
25 words
A method according to claim 1 wherein the silicon content of the ferrosilicon is about 15 parts by weight per 100 parts by weight ferrosilicon.
Claim 9
Dependent Claim
24 words
A method according to claim 1 wherein the ferrosilicon is present in an amount of from 250 to 350 parts by weight of resin.
Claim 10
Dependent Claim
30 words
A method according to claim 1 wherein the composition also includes silicon carbide in an amount of from 40 to 60 parts by weight per 250 parts by weight ferrosilicon.
Claim 11
Dependent Claim
35 words
A composition according to claim 1 wherein the composition also includes a silane as wetting agent, present in an amount of from 0.5 to 1.5 parts by weight per 100 parts by weight of resin.
Claim 12
Dependent Claim
54 words
A method according to claim 1 wherein said composition is obtained by mixing the two components of a two component pack comprising a first component including said liquid polymerizable resin and a second component including said hardener for said liquid polymerizable resin, one or both of said first and second components also including ferrosilicon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |