US4608225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for fixing metal powder molding at sintering
Assignee: Mazda Motor Corp
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Filing: 1985-04-26
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Granted: 1986-08-26
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Expires: 2005-04-26
Abstract
Abstract A composition for fixing a metal powder molding at sintering, which is used, in the case of disposing a metal powder molding formed by rolling a mixture of a metal powder and a synthetic resin-based binder on a metal base material and sintering the metal powder molding in a non-oxidizing atmosphere, by interposing between the metal powder molding and the base material, comprising a thermosetting resin composition containing a thermosetting resin as the essential component, the amount of the residual carbon of which after the completion of sintering is at least about 0.5% by weight.
Inventors
- 👤 Takahumi Sakuramoto
- 👤 Eishi Asoshina
- 👤 Takashi Tominaga
- 👤 Yukio Shimizu
- 👤 Tsuyoshi Morishita
- 👤 Sigemi Osaki
- 👤 Noriyuki Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:11
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/02; B22F7/04; B22F1/00; B22F1/10; C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12049; Y10T428/12063; Y10T428/12069; Y10T428/12076; Y10T428/12083; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12562; Y10T428/12569
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
A process for sintering comprising the steps of providing a fixing composition layer comprising a thermosetting resin capable of providing an amount of residual carbon after sintering of at least 0.5% by weight on a metal base material, providing a metal powder molding composition comprising a mixture of a metal powder and a synthetic resin-based binder on the fixing composition layer and sintering the metal powder molding in a non-oxidizing atmosphere.
Claim 2
Dependent Claim
71 words
A process for sintering comprising the steps of providing a fixing composition layer comprising a thermosetting resin capable of providing an amount of residual carbon after sintering of at least 0.5% by weight on a metal base material, providing a metal powder molding composition comprising a mixture of a metal powder and a synthetic resin-based binder on the fixing composition layer and sintering the metal powder molding in a non-oxidizing atmosphere.
Claim 3
Dependent Claim
15 words
The process as claimed in claim 1, wherein the thermosetting resin is an epoxy resin.
Claim 4
Dependent Claim
26 words
The process as claimed in claim 2, wherein the epoxy resin is a bisphenol A type epoxy resin having an epoxy equivalent of 100 to 5,000.
Claim 5
Dependent Claim
21 words
The process as claimed in claim 1, wherein the fixing composition layer further contains a hardening agent for the thermosetting resin.
Claim 6
Dependent Claim
21 words
The process as claimed in claim 1, wherein the amount of residual carbon is from about 1.0 to 10% by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |