Patent US3635879A successfully refreshed from Google Patents.
US3635879A
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Process for the preparation of glass concentrates in a thermoplastic matrix
Assignee: Monsanto Co
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Filing: 1969-11-04
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Granted: 1972-01-18
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Expires: 1989-11-04
Abstract
Abstract DISCLOSES HEREIN IS A PROCESS FOR THE PREPARATION OF GLASS CONCENTRATE CAPSULES WHICH COMPRISES A PLURALITY OF STRANDS OF GLASS FIBERS ENCAPSULATED IN A COLLIMATED ARRAY WITHIN A THERMOPLASTIC RESIN MATRIX WHICH PROCESS COMPRISES: (1) WETTING THE STRANDS OF GLASS FIBERS WITH MONOMER; (2) SUSPENDING THE STRANDS OF GLASS FIBERS IN AN AQUEOUS MEDIUM CONTAINING A CRITICAL AMOUNT OF PROTECTIVE COLLOID; (3) AGITATING THE SUSPENSION USING A LOW SHEAR TYPE OF AGITATION WHICH MOVES THE WHOLE SUSPENSION MASS WHILE AVOIDING LOCALIZED HIGH SHEAR AGITATION; (4) POLYMERIZING THE MONOMER; AND (5) RECOVERING THE GLASS CONCENTRATE CAPSULES.
Inventors
- 👤 Massimo Baer
- 👤 Joseph O Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:03
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08F; C08F2/00; C08F2/44; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/298; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |