US2732357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspensions of polymeric chlorotri-
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:28
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C08; C08L; C08L2205/00; C08L2205/02; C08L27/00; C08L27/02; C08L27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A LIQUID SUSPENSION COMPRISING A DISPERSED PHASE CONSISTING ESSENTIALLY OF FINELY DIVIDED, SOLID, HIGH MOLECULAR WEIGHT POLYCHLOROTRIFLUOROETHYLENE AS THE SOLE SOLID POLYMERIC INGREDIENT AND A DISPERSING MEDIUM FOR THE SOLID POLYCHLOROTRIFLUOROETHYLENE COMPRISING (1) AN ORGANIC LIQUID WHICH IS A SOLVENT FOR THE AFORESAID SOLID POLYMER AT ELEVATED TEMPERATURES BUT BELOW THE BOILING POINT OF THE AFORESAID LIQUID AND BEING SELECTED FROM THE CLASS CONSISTING OF LIQUID FLUORINATED-CHLORINATED ALIPHATIC HYDROCARBONS OF THE C3 AND C4 SERIES CONTAINING AT LEAST TWO CHLORINE ATOMS AND BOILING ABOVE 110* C., AND LIQUID LOW MOLECULAR WEIGHT POLYMERS OF CHLORONTRIFLUOROETHYLENE HAVING THE RECURRING STRUCTURAL UNIT (CF2-CFCL)N WHERE N IS AN INTEGER EQUAL FROM 4 TO 16, INLCUSIVE, AND BOILING ABOVE 110* C., AND (2) A NON-SOLVENT LIQUID OXYGEN-CONTAINING DILUENT HAVING A BOLING POINT ABOVE 50* C. AND SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC ETHERS, SATURATED ALIPHATIC MONOHYDRIC ALCOHOLS, ALIPHATIC ESTERS, MIXTURES OF MONOHYDRIC SATURATED ALIPHATIC ALCOHOLS AND DIHYDRIC SATURATED ALIPHATIC ALCOHOLS, AND MIXTURES OF ALL THE FOREGOING OXYGEN-CONTAINING COMPOUNDS.
Claim 2
Dependent Claim
164 words
A LIQUID SUSPENSION COMPRISING A DISPERSED PHASE CONSISTING ESSENTIALLY OF FINELY DIVIDED, SOLID, HIGH MOLECULAR WEIGHT POLYCHLOROTRIFLUOROETHYLENE AS THE SOLE SOLID POLYMERIC INGREDIENT AND A DISPERSING MEDIUM FOR THE SOLID POLYCHLOROTRIFLUOROETHYLENE COMPRISING (1) AN ORGANIC LIQUID WHICH IS A SOLVENT FOR THE AFORESAID SOLID POLYMER AT ELEVATED TEMPERATURES BUT BELOW THE BOILING POINT OF THE AFORESAID LIQUID AND BEING SELECTED FROM THE CLASS CONSISTING OF LIQUID FLUORINATED-CHLORINATED ALIPHATIC HYDROCARBONS OF THE C3 AND C4 SERIES CONTAINING AT LEAST TWO CHLORINE ATOMS AND BOILING ABOVE 110* C., AND LIQUID LOW MOLECULAR WEIGHT POLYMERS OF CHLORONTRIFLUOROETHYLENE HAVING THE RECURRING STRUCTURAL UNIT (CF2-CFCL)N WHERE N IS AN INTEGER EQUAL FROM 4 TO 16, INLCUSIVE, AND BOILING ABOVE 110* C., AND (2) A NON-SOLVENT LIQUID OXYGEN-CONTAINING DILUENT HAVING A BOLING POINT ABOVE 50* C. AND SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC ETHERS, SATURATED ALIPHATIC MONOHYDRIC ALCOHOLS, ALIPHATIC ESTERS, MIXTURES OF MONOHYDRIC SATURATED ALIPHATIC ALCOHOLS AND DIHYDRIC SATURATED ALIPHATIC ALCOHOLS, AND MIXTURES OF ALL THE FOREGOING OXYGEN-CONTAINING COMPOUNDS.
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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |