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US3079360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for multi-step coagulation of rubber latices
Assignee: DSM Copolymer Inc
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Filing: 1958-12-30
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Granted: 1963-02-26
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Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr John D Sutherland
- 👤 Robert A Gerlicher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:20
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/14; C08C1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF COAGULATING RUBBER POLYMER LATICES COMPRISING THE STEPS OF PARTIALLY IRREVERSIBLY COAGULATING RUBBERY POLYMER LATEX WITH A COAGULANT, THE PARTIALLY COAGULATED LATEX CONTAINING VISIBLE PARTICLES OF COAGULUM, DISPERSING RUBBERY POLYMER PROCESSING OIL IN PARTIALLY COAGULATED LATEX, AND FURTHER IRREVERSIBLY COAGULATING THE PARTIALLY COAGULATED LATEX WITH A COAGULANT IN THE PRESENCE OF THE RUBBERY POLYMER PROCESSING OIL, THE RUBBERY POLYMER LATEX BEING SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER LATEX, POLYCHLOROPRENE LATEX, LATICES OF HOMO-POLYMERS OF CONJUGATED DIOLEFINS, LATICES OF COPOLYMERS OF CONJUGATED DIOLEFINS AND MONOETHYLENICALLY UNSATURATED MONOMERS COPOLYMERIZABLE THEREWITH, AND MIXTURES THEREOF.
Claim 2
Independent Claim
95 words
A METHOD OF COAGULATING RUBBER POLYMER LATICES COMPRISING THE STEPS OF PARTIALLY IRREVERSIBLY COAGULATING RUBBERY POLYMER LATEX WITH A COAGULANT, THE PARTIALLY COAGULATED LATEX CONTAINING VISIBLE PARTICLES OF COAGULUM, DISPERSING RUBBERY POLYMER PROCESSING OIL IN PARTIALLY COAGULATED LATEX, AND FURTHER IRREVERSIBLY COAGULATING THE PARTIALLY COAGULATED LATEX WITH A COAGULANT IN THE PRESENCE OF THE RUBBERY POLYMER PROCESSING OIL, THE RUBBERY POLYMER LATEX BEING SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER LATEX, POLYCHLOROPRENE LATEX, LATICES OF HOMO-POLYMERS OF CONJUGATED DIOLEFINS, LATICES OF COPOLYMERS OF CONJUGATED DIOLEFINS AND MONOETHYLENICALLY UNSATURATED MONOMERS COPOLYMERIZABLE THEREWITH, AND MIXTURES THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |