Patent US4685067A successfully refreshed from Google Patents.
US4069083A
Expired / Lapsed
US
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Bonding material and method
Assignee: Combustion Engineering Inc
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Filing: 1975-12-22
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Granted: 1978-01-17
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Expires: 1995-12-22
Abstract
Abstract A bonding material is disclosed which is stable at high temperature and radiation levels, which may be conductive and which is particularly suited as a couplant to ultrasonically and electrically couple an ultrasonic or acoustic transducer to a surface. The material comprises a carborane polysiloxane adhesive, a vehicle-solvent which will evaporate such that the bonding material cures by vehicle-solvent release, and a wetting agent. The material may also contain conductive materials which are suitable for the conditions of intended use and may also be enriched in B 11 to avoid the adverse effects of B 10 when subjected to radiation.
Inventors
- 👤 David Nelson Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:45
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/32; C09J; C09J183/00; C09J183/14; G; G10; G10K; G10K11/00; G10K11/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
A method of adhering and acoustically and electrically coupling an acoustic transducer to a surface wherein said coupling will be subject to high temperature and radiation comprising the steps of applying a layer of electrically conductive coupling material between said transducer and said surface and allowing said coupling material to cure by vehicle-solvent release to cause said transducer to be adhered and coupled to said surface, said coupling material comprising: a. a carborane polysiloxane adhesive; b. a vehicle-solvent for said carborane polysiloxane adhesive, said vehicle-solvent being evaporatable from said bonding material whereby said bonding material will cure by vehicle-solvent release; c. a wetting agent; and d. a conductive agent.
Claim 2
Independent Claim
109 words
A method of adhering and acoustically and electrically coupling an acoustic transducer to a surface wherein said coupling will be subject to high temperature and radiation comprising the steps of applying a layer of electrically conductive coupling material between said transducer and said surface and allowing said coupling material to cure by vehicle-solvent release to cause said transducer to be adhered and coupled to said surface, said coupling material comprising: a. a carborane polysiloxane adhesive; b. a vehicle-solvent for said carborane polysiloxane adhesive, said vehicle-solvent being evaporatable from said bonding material whereby said bonding material will cure by vehicle-solvent release; c. a wetting agent; and d. a conductive agent.
Claim 3
Dependent Claim
30 words
A method as recited in claim 1 wherein said conductive agent is selected from the group consisting of palladium, rhodium, ruthenium, graphite, nickel, molybdenum, platinum, iridium tungsten and tungsten carbide.
Claim 4
Dependent Claim
25 words
A method as recited in claim 1 wherein the boron content of said carborane polysiloxane adhesive is greater than 81.66 weight percent B 11 .
Claim 5
Dependent Claim
56 words
A method as recited in claim 1 wherein the proportions of adhesive, vehicle-solvent, wetting agent and conductive agent are as follows: a. from 11.0 to 25.0 volume percent adhesive; b. from 58.95 to 39.90 volume percent vehicle-solvent; c. from 0.05 to 0.10 volume percent wetting agent; and d. from 37.5 to 30.0 volume percent conductive agent.
Claim 6
Dependent Claim
18 words
A method as recited in claim 4 wherein said carborane polysiloxane adhesive is a carborane methyl silicone polymer.
Claim 7
Dependent Claim
40 words
A method as recited in claim 5 wherein the proportions of adhesive, vehicle-solvent, wetting agent and conductive agent are about 14.00 volume percent adhesive, 49.95 volume percent vehicle solvent, 0.05 volume percent wetting agent and 36.00 volume percent conductive agent.
Claim 8
Dependent Claim
29 words
A method as recited in claim 5 wherein said coupling material further includes a viscosity modifier comprising a carborane polysiloxane having a lower viscosity than said caborane polysiloxane adhesive.
Claim 9
Dependent Claim
32 words
A method as recited in claim 7 wherein said carborane polysiloxane viscosity modifier is selected from the group consisting of carborane methyl phenyl silicone and carborane methyl 2-cyanoethyl silicone and mixtures thereof.
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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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |