US3345430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering graft copolymer latex solids
Assignee: Monsanto Co
•
Filing: 1962-12-31
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Granted: 1967-10-03
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Robert H M Simon
- 👤 Oster Bernd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:54
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/14; C08F6/22; C08C; C08C1/00; C08C1/14; Y; Y10; Y10S; Y10S525/00; Y10S525/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A PROCESS FOR RECOVERING SOLIDS FROM A POLYMERIC LATEX, THE IMPROVEMENT WHICH COMPRISES INTIMATELY MIXING THE POLYMERIC LATEX OF A WATER-INSOLUBLE VINYLIDENE POLYMER HAVING A HEAT DISTORTION TEMPERATURE ABOVE ABOUT 65* CENTIGRADE AND SELECTED FROM THE GROUP CONSISTING OF (A) GRAFT COPOLYMERS ON A CONJUGATED DIENE POLYMER SUBSTRATE OF A MONOMER FORMULATION CONSISTING ESSENTIALLY OF A VINYLIDENE MONOMER OF THE CLASS CONSISTING OF MONOVINYLIDENE AROMATIC MONOMERS, ACRYLIC MONOMERS AND MIXTURES THEREOF, AND (B) MIXTURES OF SAID GRAFT COPOLYMERS WITH WATER-INSOLUBLE RESINOUS VINYLIDENE HOMOPOLYMERS OR INTERPOLYMERS WITH AN AQUEOUS ELECTROLYTE SOLUTION UNTIL A HOMOGENEOUS, FORM-SUSTAINING PASTE IS OBTAINED, FORMING THE PASTE INTO AT LEAST ONE SHAPED UNIT HAVING A CROSS-SECTION OF ABOUT 0.05 TO 5.0 INCHES, AND HEATING THE SHAPED PASTE IN AN AQUEOUS BATH MAINTAINED AT A TEMPERATURE AT LEAST AS HIGH AS THE HEAT DISTORTION TEMPERATURE OF THE POLYMER TO HARDEN AND SYNERIZE THE POLYMER UNITS.
Claim 2
Dependent Claim
148 words
IN A PROCESS FOR RECOVERING SOLIDS FROM A POLYMERIC LATEX, THE IMPROVEMENT WHICH COMPRISES INTIMATELY MIXING THE POLYMERIC LATEX OF A WATER-INSOLUBLE VINYLIDENE POLYMER HAVING A HEAT DISTORTION TEMPERATURE ABOVE ABOUT 65* CENTIGRADE AND SELECTED FROM THE GROUP CONSISTING OF (A) GRAFT COPOLYMERS ON A CONJUGATED DIENE POLYMER SUBSTRATE OF A MONOMER FORMULATION CONSISTING ESSENTIALLY OF A VINYLIDENE MONOMER OF THE CLASS CONSISTING OF MONOVINYLIDENE AROMATIC MONOMERS, ACRYLIC MONOMERS AND MIXTURES THEREOF, AND (B) MIXTURES OF SAID GRAFT COPOLYMERS WITH WATER-INSOLUBLE RESINOUS VINYLIDENE HOMOPOLYMERS OR INTERPOLYMERS WITH AN AQUEOUS ELECTROLYTE SOLUTION UNTIL A HOMOGENEOUS, FORM-SUSTAINING PASTE IS OBTAINED, FORMING THE PASTE INTO AT LEAST ONE SHAPED UNIT HAVING A CROSS-SECTION OF ABOUT 0.05 TO 5.0 INCHES, AND HEATING THE SHAPED PASTE IN AN AQUEOUS BATH MAINTAINED AT A TEMPERATURE AT LEAST AS HIGH AS THE HEAT DISTORTION TEMPERATURE OF THE POLYMER TO HARDEN AND SYNERIZE THE POLYMER UNITS.
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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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |