US2761853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of low viscosity high solids latex
Assignee: Phillips Petroleum Co
•
Filing: 1951-09-27
•
Granted: 1956-09-04
•
Expires: 1971-09-27
Abstract
No abstract record available.
Inventors
- 👤 Carl A Uraneck
- 👤 Richard J Sonnenfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A METHOD FOR PRODUCING A LOW VISCOSITY, HIGH SOLIDS LATEX WHICH COMPRISES FORMING AN EMULSION OF WATER AND A NONOMERIC MATERIAL IN THE PROPORTION OF 15 TO 80 PARTS BY WEIGHT OF WATER BASED ON 100 PARTS BY WEIGHT OF SAID MONOMERIC MATERIAL, SAID MONOMERIC MATERIAL COMPRISIN AN ALIPHATIC CONJUGATED DIENE, POLYMERIZING A MINOR AMOUNT OF SAID TOTAL MONOMERIC MATERIAL TO A CONVERSION IN THE RANGE OF 25 TO 75 PER CENT IN THE PRESENCE OF SUBSTANTIALLY ALL OF SAID WATER AND A SUFFICIENT AMOUNT OF AN INITIATOR, ACTIVATOR AND MODIFIER TO OBTAIN SAID CONVERSION, AND THEN ADDING TO SAID EMULSION THE REMAINDER OF SAID MONOMER MATERIAL AND SUFFICIENT INITIATOR, ACTIVATOR AND MODIFIER AND CONTINUING SAID POLYMERIZATION TO OBTAIN A CONVERSION OF AT LEAST 75 PER CENT BASED ON SAID TOTAL MONOMERIC MATERIAL, THE COMPOSITION OF SAID MONOMERIC MATERIAL INITIALLY AND SUBSEQUENTLY CHARGED TO SAID EMULSION SYSTEM BEING CONSTANT THROUGHOUT THE PROCESS.
Claim 2
Independent Claim
152 words
A METHOD FOR PRODUCING A LOW VISCOSITY, HIGH SOLIDS LATEX WHICH COMPRISES FORMING AN EMULSION OF WATER AND A NONOMERIC MATERIAL IN THE PROPORTION OF 15 TO 80 PARTS BY WEIGHT OF WATER BASED ON 100 PARTS BY WEIGHT OF SAID MONOMERIC MATERIAL, SAID MONOMERIC MATERIAL COMPRISIN AN ALIPHATIC CONJUGATED DIENE, POLYMERIZING A MINOR AMOUNT OF SAID TOTAL MONOMERIC MATERIAL TO A CONVERSION IN THE RANGE OF 25 TO 75 PER CENT IN THE PRESENCE OF SUBSTANTIALLY ALL OF SAID WATER AND A SUFFICIENT AMOUNT OF AN INITIATOR, ACTIVATOR AND MODIFIER TO OBTAIN SAID CONVERSION, AND THEN ADDING TO SAID EMULSION THE REMAINDER OF SAID MONOMER MATERIAL AND SUFFICIENT INITIATOR, ACTIVATOR AND MODIFIER AND CONTINUING SAID POLYMERIZATION TO OBTAIN A CONVERSION OF AT LEAST 75 PER CENT BASED ON SAID TOTAL MONOMERIC MATERIAL, THE COMPOSITION OF SAID MONOMERIC MATERIAL INITIALLY AND SUBSEQUENTLY CHARGED TO SAID EMULSION SYSTEM BEING CONSTANT THROUGHOUT THE PROCESS.
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) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |