US4626642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave method of curing a thermoset polymer
Assignee: Motors Liquidation Co
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Filing: 1985-10-08
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Granted: 1986-12-02
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Expires: 2005-10-08
Abstract
Abstract A method of rapidly curing a thermoset polymer by blending and dispersing a quantity of electrically conductive fibers into the polymer and subjecting it to microwave radiation.
Inventors
- 👤 Chen-Shih Wang
- 👤 Darrel S. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:08
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/14; B29C65/1403; B29C65/1425; B29C65/1477; B29C65/1483; B29C65/48; B29C65/4805; B29C65/483; B29C65/4835; B29C65/4855; B29C65/4865; B29C65/487; B29C65/488; H; H05; H05B; H05B6/00; H05B6/64; B29C66/00; B29C66/70; B29C66/73; B29C66/739; B29C66/7394; B29C66/73941
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A method of rapid curing a thermoset polymer used as an adhesive in the bonding of automotive plastic components comprising the steps of: blending and dispersing into said thermoset polymer less than sixty weight percent of total weight electrically conductive metal fibers selected from the group consisting of steel and aluminum, said fibers having a minimum average aspect ratio of 5 and a maximum average diameter of 500 microns, bonding said automotive plastic components together with said fiber containing thermoset polymer adhesive and clamping under sufficient pressure such that said automotive plastic components are in intimate contact with said fiber containing thermoset polymer adhesive, establishing a field of microwave energy for a time period of at least 10 seconds across the thermoset polymer for inducing sufficient electrical energy in said fibers such that heat is generated to rapidly cure said thermoset polymer and bond said automotive plastic components together.
Claim 2
Independent Claim
149 words
A method of rapid curing a thermoset polymer used as an adhesive in the bonding of automotive plastic components comprising the steps of: blending and dispersing into said thermoset polymer less than sixty weight percent of total weight electrically conductive metal fibers selected from the group consisting of steel and aluminum, said fibers having a minimum average aspect ratio of 5 and a maximum average diameter of 500 microns, bonding said automotive plastic components together with said fiber containing thermoset polymer adhesive and clamping under sufficient pressure such that said automotive plastic components are in intimate contact with said fiber containing thermoset polymer adhesive, establishing a field of microwave energy for a time period of at least 10 seconds across the thermoset polymer for inducing sufficient electrical energy in said fibers such that heat is generated to rapidly cure said thermoset polymer and bond said automotive plastic components together.
Claim 3
Independent Claim
70 words
A method of rapid curing a thermoset adhesive comprising the steps of: blending and dispersing into said thermoset adhesive a quantity of electrically conductive fibers having a minimum average aspect ratio of 5 and a maximum average diameter of 500 microns, establishing a field of microwave energy across the thermoset adhesive for inducing sufficient electrical energy in said fibers such that heat is generated to rapidly cure said thermoset adhesive.
Claim 4
Independent Claim
70 words
A method of rapid curing a thermoset adhesive comprising the steps of: blending and dispersing into said thermoset adhesive a quantity of electrically conductive fibers having a minimum average aspect ratio of 5 and a maximum average diameter of 500 microns, establishing a field of microwave energy across the thermoset adhesive for inducing sufficient electrical energy in said fibers such that heat is generated to rapidly cure said thermoset adhesive.
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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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |