US2616875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shortstopping of butadiene-1,3 emulsion polymerization
Assignee: Uniroyal Inc
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Filing: 1951-09-06
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Granted: 1952-11-04
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Expires: 1971-09-06
Abstract
No abstract record available.
Inventors
- 👤 James W Adams
- 👤 James A Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:50
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE PREPARATION OF A SYNTHETIC RUBBER LATEX BY THE POLYMERIZATION OF AN AQUEOUS EMULSION OF POLYMERIZABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTADIENE-1,3 HYDROCARBONS AND MIXTURES OF BUTADIENE-1,3 HYDROCARBONS WITH COMPOUNDS WHICH CONTAIN A CH2=C< GROUP AND ARE COPOLYMERIZABLE WITH BUTADIENE-1,3 HYDROCARBONS, THE STEP WHICH COMPRISES ADDING TO THE EMULSION 0.05 TO 1 PART OF AN ALKYLENE POLYAMINESULFUR REACTION PRODUCT PER 100 PARTS OF POLYMERIZABLE MATERIAL INITIALLY PRESENT BEFORE COMPLETE CONVERSION OF THE POLYMERIZABLE MATERIAL ORIGINALLY PRESENT IN THE EMULSION TO SYNTHETIC RUBBER AND WHILE THE LATEX CONTAINS UNREACTED POLYMERIZABLE MONOMERIC MATERIAL.
Claim 2
Dependent Claim
94 words
IN THE PREPARATION OF A SYNTHETIC RUBBER LATEX BY THE POLYMERIZATION OF AN AQUEOUS EMULSION OF POLYMERIZABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTADIENE-1,3 HYDROCARBONS AND MIXTURES OF BUTADIENE-1,3 HYDROCARBONS WITH COMPOUNDS WHICH CONTAIN A CH2=C< GROUP AND ARE COPOLYMERIZABLE WITH BUTADIENE-1,3 HYDROCARBONS, THE STEP WHICH COMPRISES ADDING TO THE EMULSION 0.05 TO 1 PART OF AN ALKYLENE POLYAMINESULFUR REACTION PRODUCT PER 100 PARTS OF POLYMERIZABLE MATERIAL INITIALLY PRESENT BEFORE COMPLETE CONVERSION OF THE POLYMERIZABLE MATERIAL ORIGINALLY PRESENT IN THE EMULSION TO SYNTHETIC RUBBER AND WHILE THE LATEX CONTAINS UNREACTED POLYMERIZABLE MONOMERIC MATERIAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |