Patent US4062813A successfully refreshed from Google Patents.
US4062813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor material
Assignee: Individual
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Filing: 1976-04-20
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Granted: 1977-12-13
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Expires: 1996-04-20
Abstract
Abstract Semiconductor material consists of polyvinyldimethylsiloxane rubber, filler material conducting electricity, and a curing agent. Said curing agent is dialkylaminomethyltrialkoxysilane. The components of the proposed material are taken in the following proportion, in part by weight: Polyvinyldimethylsiloxane rubber: 100 Filler conducting electricity: 20-100 Dialkylaminomethyl trialkoxysilane: 0.5-4.
Inventors
- 👤 Kuzma Andrianovich Andrianov
- 👤 Mikhail Izmailovich Topchiashvili
- 👤 Lotary Mikhailovich Khananashvili
- 👤 Alexei Vladimirovich Danilov
- 👤 Evgeny Ivanovich Ryabtsev
- 👤 Dali Georgievna Pagava
- 👤 Dzhimsher Shalvovich Bodzhgua
- 👤 Veniamin Demyanovich Grigoriev
- 👤 Vladimir Mikhailovich Fridland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:30
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/08; C08K5/00; C08K5/54; C08G; C08G77/00; C08G77/04; C08G77/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
75 words
A semiconductor material consisting of polyvinyldimethylsiloxane rubber, filler material conducting electricity and a curing agent, which is dialkylaminomethyl trialkoxysilane, said components being taken in the following proportion (parts by weight): polyvinyldimethylsiloxane rubber:100 electrically-conducting filler material:20-100 and a dialkylaminomethyl trialkoxysilane:0.5-4, said filler material being selected from the group consisting of carbon blacks, graphites, metals and metal salts, and said dialkylaminomethyl triethoxysilane being selected from the group consisting of diethylaminomethyl triethoxysilane, dimethylaminomethyl triethoxysilane, dibutylaminomethyl triethoxysilane, and dipropylamino-triethoxysilane.
Claim 2
Dependent Claim
75 words
A semiconductor material consisting of polyvinyldimethylsiloxane rubber, filler material conducting electricity and a curing agent, which is dialkylaminomethyl trialkoxysilane, said components being taken in the following proportion (parts by weight): polyvinyldimethylsiloxane rubber:100 electrically-conducting filler material:20-100 and a dialkylaminomethyl trialkoxysilane:0.5-4, said filler material being selected from the group consisting of carbon blacks, graphites, metals and metal salts, and said dialkylaminomethyl triethoxysilane being selected from the group consisting of diethylaminomethyl triethoxysilane, dimethylaminomethyl triethoxysilane, dibutylaminomethyl triethoxysilane, and dipropylamino-triethoxysilane.
Claim 3
Dependent Claim
12 words
A material according to claim 1 wherein said filler is carbon black.
Claim 4
Dependent Claim
12 words
A material according to claim 1 wherein said filler is a graphite.
Claim 5
Dependent Claim
12 words
A material according to claim 1 wherein said filler is a metal.
Claim 6
Dependent Claim
13 words
A material according to claim 1 wherein said filler is a metal salt.
Claim 7
Dependent Claim
12 words
A material according to claim 1 wherein said silane is diethylaminomethyl triethoxysilane.
Claim 8
Dependent Claim
12 words
A material according to claim 1 wherein said silane is dimethylaminomethyl triethoxysilane.
Claim 9
Dependent Claim
12 words
A material according to claim 1 wherein said silane is dibutylaminomethyl triethoxysilane.
Claim 10
Dependent Claim
12 words
A material according to claim 1 wherein said silane is dipropylamino triethoxysilane.
Claim 11
Dependent Claim
106 words
A process for preparing a semiconductor material consisting of polyvinyldimethylsiloxane rubber, filler material conducting electricity and a curing agent, said components being 100 parts by weight polyvinyldimethylsiloxane rubber, 20-100 electrically conductive filler material and 0.5-4 dialkylaminomethyl trialkoxysilane which comprises mixing a solution of the polyvinyldimethylsiloxane rubber with the electrically conductive filler material into a paste-like mass, adding the dialkylaminomethyl trialkoxysilane and mixing until a homogeneous mixture is obtained, shaping said mixture at from 5° to 40° C and then heating said material at temperatures of 100° C and then 120° C each for 2 hours and 150° C and then 200° C each for 4 hours.
Claim 12
Dependent Claim
106 words
A process for preparing a semiconductor material consisting of polyvinyldimethylsiloxane rubber, filler material conducting electricity and a curing agent, said components being 100 parts by weight polyvinyldimethylsiloxane rubber, 20-100 electrically conductive filler material and 0.5-4 dialkylaminomethyl trialkoxysilane which comprises mixing a solution of the polyvinyldimethylsiloxane rubber with the electrically conductive filler material into a paste-like mass, adding the dialkylaminomethyl trialkoxysilane and mixing until a homogeneous mixture is obtained, shaping said mixture at from 5° to 40° C and then heating said material at temperatures of 100° C and then 120° C each for 2 hours and 150° C and then 200° C each for 4 hours.
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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) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |