US3313864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the stepwise production of moulded articles from moulding masses based on unsaturated polyesters and copolymerisable monomeric compounds
Assignee: Bayer AG
•
Filing: 1965-07-06
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Granted: 1967-04-11
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Rudolph Hans
- 👤 Rullmann Karl-Heinz
- 👤 Schnell Hermann
- 👤 Prater Klaus
- 👤 Raichle Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:30
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN A PROCESS WHEREIN AN UNSATURATED POLYESTER POLYMERIC CONDENSATION REACTION PRODUCT OF AN A, B-UNSATURATED DICARBOXYLIC ACID AND A POLYALLCOHOL IS COPOLYMERIZED WITH A VINYL MONOMER TO FORM A PRE-POLYMER GEL SUITABLE FOR MOULDING, THE IMPROVEMENT COMPRISING EMPLOYING AS A GELLING CATALYST IN THE POLYMERIZATION SYSTEM A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
51 words
IN A PROCESS WHEREIN AN UNSATURATED POLYESTER POLYMERIC CONDENSATION REACTION PRODUCT OF AN A, B-UNSATURATED DICARBOXYLIC ACID AND A POLYALLCOHOL IS COPOLYMERIZED WITH A VINYL MONOMER TO FORM A PRE-POLYMER GEL SUITABLE FOR MOULDING, THE IMPROVEMENT COMPRISING EMPLOYING AS A GELLING CATALYST IN THE POLYMERIZATION SYSTEM A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US3146216A
Cited
US3221081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |