US3052645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating unreacted polymerizable material from diene polymer latex in the presence of a long chain aliphatic alcohol
Assignee: DSM Copolymer Inc
•
Filing: 1957-12-31
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Granted: 1962-09-04
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Expires: 1977-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr William P Denson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:40
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A PROCESS FOR SEPARATING AN UNREACTED MONOMER FROM LATEX SELECTED FROM THE GROUP CONSISTING OF POLYCHLOROPRENE LATEX, SYNTHETIC LATICES OF HOMOPOLYMERS OF CONJUGATED DIOLEFINS AND SYNTHETIC LATICES OF COPOLYMERS OF CONJUGATED DIOLEFINS AND MONOETHYLENICALLY UNSATURATED MONOMERS, THE IMPROVEMENT COMPRISING REDUCING PREFLOC FORMATION BY SEPARATION UNREACTED MONOMER FROM THE LATEX IN THE PRESENCE IN THE LATEX OF ABOUT 0.001-2.0 PARTS BY WEIGHT FOR EACH 100 PARTS BY WEIGHT OF LATEX SOLIDS OF AT LEAST ONE HIGHER ALIPHATIC ALCOHOL CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN AND HAVING A CARBON CHAIN OF ABOUT 14-25 INCLUSIVE CARBON ATOMS, THE HIGHER ALIPHATIC ALCOHOL BEING DISPERSED IN THE LATEX PRIOR TO COMMENCING SEPARATION OF THE UNREACTED MONOMER.
Claim 2
Dependent Claim
112 words
IN A PROCESS FOR SEPARATING AN UNREACTED MONOMER FROM LATEX SELECTED FROM THE GROUP CONSISTING OF POLYCHLOROPRENE LATEX, SYNTHETIC LATICES OF HOMOPOLYMERS OF CONJUGATED DIOLEFINS AND SYNTHETIC LATICES OF COPOLYMERS OF CONJUGATED DIOLEFINS AND MONOETHYLENICALLY UNSATURATED MONOMERS, THE IMPROVEMENT COMPRISING REDUCING PREFLOC FORMATION BY SEPARATION UNREACTED MONOMER FROM THE LATEX IN THE PRESENCE IN THE LATEX OF ABOUT 0.001-2.0 PARTS BY WEIGHT FOR EACH 100 PARTS BY WEIGHT OF LATEX SOLIDS OF AT LEAST ONE HIGHER ALIPHATIC ALCOHOL CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN AND HAVING A CARBON CHAIN OF ABOUT 14-25 INCLUSIVE CARBON ATOMS, THE HIGHER ALIPHATIC ALCOHOL BEING DISPERSED IN THE LATEX PRIOR TO COMMENCING SEPARATION OF THE UNREACTED MONOMER.
References Cited (Backward Citations)
GB444375A
Cited
US2614087A
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US2662866A
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GB745927A
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US2702285A
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US2805210A
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US2863843A
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US2927065A
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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) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |