US4529459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive for mutual union of oxide type ceramic articles and method for manufacture thereof
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1983-10-18
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Granted: 1985-07-16
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Expires: 2003-10-18
Abstract
Abstract An adhesive agent having, as its active components, copper sulfide and at least one member selected from the group consisting of alumina, silica, and kaoline enables the opposed surfaces of two oxide-type ceramic articles to be joined to each other with high adhesive strength, this fast union being accomplished by interposing the adhesive agent between the opposed surfaces of the ceramic articles and heating the adhesive agent to a temperature of not less than 1000 DEG C.
Inventors
- 👤 Yoshihiro Ebata
- 👤 Makoto Kinoshita
- 👤 Ryozo Hayami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:23
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/003; C04B37/005; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/062; C04B2237/064; C04B2237/08; C04B2237/09; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/345; C04B2237/348
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
62 words
A method for mutual adhesion of two oxide type ceramic articles, comprising the steps of interposing between the opposed surfaces of said ceramic articles an adhesive agent consisting essentially of copper sulfide and at least one member selected from the group consisting of alumina, silica, and kaoline and maintaining said adhesive agent at a temperature of not less than about 1000° C.
Claim 2
Independent Claim
62 words
A method for mutual adhesion of two oxide type ceramic articles, comprising the steps of interposing between the opposed surfaces of said ceramic articles an adhesive agent consisting essentially of copper sulfide and at least one member selected from the group consisting of alumina, silica, and kaoline and maintaining said adhesive agent at a temperature of not less than about 1000° C.
Claim 3
Dependent Claim
24 words
A method according to claim 1, wherein said adhesive agent is maintained at a temperature in the range of about 1000° to 1300° C.
Claim 4
Dependent Claim
48 words
A method according to claim 1, wherein said copper sulfide accounts for 30 to 98% by weight and at least one member selected from the group consisting of alumina, silica, and kaoline accounts for 70 to 2% by weight, respectively based on the amount of the mixture thereof.
Claim 5
Dependent Claim
16 words
A method according to claim 1, wherein the principal components are both in a powdered form.
Claim 6
Dependent Claim
23 words
A method according to claim 1, wherein said adhesive agent is transformed into paste by incorporation of additives to the principal components thereof.
Claim 7
Dependent Claim
32 words
An adhesive agent for mutual adhesion of two oxide type ceramic articles, consisting essentially of copper sulfide and at least one member selected from the group consisting of alumina, silica, and kaoline.
Claim 8
Dependent Claim
32 words
An adhesive agent for mutual adhesion of two oxide type ceramic articles, consisting essentially of copper sulfide and at least one member selected from the group consisting of alumina, silica, and kaoline.
Claim 9
Dependent Claim
48 words
An adhesive agent according to claim 1, wherein copper sulfide accounts for 30 to 98% by weight and at least one member selected from the group consisting of alumina, silica, and kaoline accounts for 2 to 70% by weight, respectively based on the amount of the mixture thereof.
Claim 10
Dependent Claim
17 words
An adhesive agent according to claim 1, wherein the principal components are both in a powdered form.
Claim 11
Dependent Claim
24 words
An adhesive agent according to claim 1, wherein said adhesive agent is transformed into paste by incorporation of additives to the principal components thereof.
References Cited (Backward Citations)
US4269641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |