Patent US3320201A successfully refreshed from Google Patents.
US3320201A
Expired / Lapsed
US
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Process for peptising sulphur modified chloroprene latex
Assignee: Distillers Co Yeast Ltd
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Filing: 1964-06-04
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Granted: 1967-05-16
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 Sparks Anthony Archibald
- 👤 Downs Epson
- 👤 Moore Robert Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:44
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR THE PEPTISATION OF A SULPHUR MODIFIED POLYCHLOROPRENE LATEX WHICH COMPRISES PEPTISING A SULPHUR MODIFIED POLYCHLOROPRENE LATEX WITH A PEPTISING AGENT SELECTED FROM THE GROUP CONSISTING OF TETRA ETHYL THIURAM DISULPHIDE AND A MIXTURE OF TETRA ETHYL THIURAM DISULPHIDE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE, SODIUM PHOSPHATE, DIETHYLAMINE, DIMETHYL AMMONIUM DIETHYL DITHIOCARBAMATE, DIETHYLL AMMONIUM DIETHYL DITHIOCARBAMATE AND SODIUM DIMETHYL DITHIOCARBAMATE IN THE PRESENCE OF LESS THAN ONE PERCENT BY WEIGHT OF ADDED SODIUM FORMALDEHYDE SULPHOXYLATE BASED ON THE WEIGHT OF DRY RUBBER IN THE LATEX.
Claim 2
Dependent Claim
92 words
A PROCESS FOR THE PEPTISATION OF A SULPHUR MODIFIED POLYCHLOROPRENE LATEX WHICH COMPRISES PEPTISING A SULPHUR MODIFIED POLYCHLOROPRENE LATEX WITH A PEPTISING AGENT SELECTED FROM THE GROUP CONSISTING OF TETRA ETHYL THIURAM DISULPHIDE AND A MIXTURE OF TETRA ETHYL THIURAM DISULPHIDE AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE, SODIUM PHOSPHATE, DIETHYLAMINE, DIMETHYL AMMONIUM DIETHYL DITHIOCARBAMATE, DIETHYLL AMMONIUM DIETHYL DITHIOCARBAMATE AND SODIUM DIMETHYL DITHIOCARBAMATE IN THE PRESENCE OF LESS THAN ONE PERCENT BY WEIGHT OF ADDED SODIUM FORMALDEHYDE SULPHOXYLATE BASED ON THE WEIGHT OF DRY RUBBER IN THE LATEX.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |