Patent US3265768A successfully refreshed from Google Patents.
US3265768A
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Copolymer mixtures of tetrahydrofurfuryl methacrylate
Assignee: Monsanto Co
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Filing: 1962-11-19
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Granted: 1966-08-09
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Edward H Mottus
- 👤 Joseph E Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:44
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10M; C10M145/00; C10M145/02; C10M145/10; C10M145/12; C10M145/14; C10M149/00; C10M149/02; C10M149/04; C10M149/10; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/281; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10N; C10N2040/00; C10N2040/08; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR MAKING TETRAHYDROFURFURYL METHACRYLATE AND ALKYL METHACRYLATE COPOLYMER MIXTURE HAVING IMPROVED VISCOSITY-STABILITY IN THE PRESENCE OF A HEAVY DUTY BARIUM DETERGENT ADDITIVE COMPRISING HEATING AT POLYMERIZING TEMPERATURES IN THE PRESENCE OF A FREE RADICAL CATALYST A MAJOR AMOUNT OF AN ALKYL METHACRYLATE MONOMER HAVING NOT LESS THAN 6 AND NOT MORE THAN 20 CARBON ATOMS IN THE ALKYL GROUP FOR A TIME SUFFICIENT TO POLYMERIZE AT LEAST A PORTION OF SAID ALKYL METHACRYLATE TO PROVIDE SAID STABILITY, AND THEN ADDING TO THE POLYMERIZING ALKYL METHACRYLATE UNDER POLYMERIZING CONDITIONS A MINOR AMOUNT OF TETRAHYDROFURFURY METHACRYLATE MONOMER BASED ON SAID ALKYL METHACRYLATE IN A MANNER TO PRODUCE A MIXTURE OF POLYMER SPECIES AND CONTUINING THE POLYMERIZATION UNTIL SUBSTANTIALLY ALL OF THE MONOMER CONTENT IS INCORPORTED IN THE POLMER.
Claim 2
Dependent Claim
128 words
A PROCESS FOR MAKING TETRAHYDROFURFURYL METHACRYLATE AND ALKYL METHACRYLATE COPOLYMER MIXTURE HAVING IMPROVED VISCOSITY-STABILITY IN THE PRESENCE OF A HEAVY DUTY BARIUM DETERGENT ADDITIVE COMPRISING HEATING AT POLYMERIZING TEMPERATURES IN THE PRESENCE OF A FREE RADICAL CATALYST A MAJOR AMOUNT OF AN ALKYL METHACRYLATE MONOMER HAVING NOT LESS THAN 6 AND NOT MORE THAN 20 CARBON ATOMS IN THE ALKYL GROUP FOR A TIME SUFFICIENT TO POLYMERIZE AT LEAST A PORTION OF SAID ALKYL METHACRYLATE TO PROVIDE SAID STABILITY, AND THEN ADDING TO THE POLYMERIZING ALKYL METHACRYLATE UNDER POLYMERIZING CONDITIONS A MINOR AMOUNT OF TETRAHYDROFURFURY METHACRYLATE MONOMER BASED ON SAID ALKYL METHACRYLATE IN A MANNER TO PRODUCE A MIXTURE OF POLYMER SPECIES AND CONTUINING THE POLYMERIZATION UNTIL SUBSTANTIALLY ALL OF THE MONOMER CONTENT IS INCORPORTED IN THE POLMER.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |