US3880815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arylene sulfide polymers
Assignee: Phillips Petroleum Co
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Filing: 1973-11-19
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Granted: 1975-04-29
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Expires: 1993-11-19
Abstract
Abstract A method of producing arylene sulfide polymers employing (1) polyhalosubstituted aromatic compounds; (2) carbon disulfide or carbon oxysulfide; (3) bases selected from the hydroxides of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and barium and the carbonates of sodium, potassium, rubidium and cesium; and, (4) organic amides.
Inventors
- 👤 Charles W Moberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:22
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/025; C08G75/0272
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
97 words
A METHOD OF PRODUCING A POLYMER WHICH COMPRISES: A. FORMING A COMPOSITION BE CONTACTING AT LEAST ONE POLYHALO-SUBSTITUTED AROMATIC COMPOUND WITHIN THE HALOGEN ATOMS ARE ATTACHED TO AROMATIC RING CARBON ATOMS, AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBON DISULFIDE AND CARBON OXYSULFIDE, AT LEAST ONE BASE SELECTED FROM THE HYDROXIDES OF LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CESIUM, MAGNESIUM, CALCIUM, STRONTIUM AND BARIUM AND THE CARBONATES OF SODIUM, POTASSIUM, RUBIDIUM AND CESIUM AND AT LEAST ONE ORGANIC AMIDE, AND B. MAINTAINING AT LEAST A PORTION OF SAID COMPOSITION AT POLYMERIZATION CONDITIONS TO PRODUCE SAID POLYMER.
Claim 2
Independent Claim
97 words
A METHOD OF PRODUCING A POLYMER WHICH COMPRISES: A. FORMING A COMPOSITION BE CONTACTING AT LEAST ONE POLYHALO-SUBSTITUTED AROMATIC COMPOUND WITHIN THE HALOGEN ATOMS ARE ATTACHED TO AROMATIC RING CARBON ATOMS, AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CARBON DISULFIDE AND CARBON OXYSULFIDE, AT LEAST ONE BASE SELECTED FROM THE HYDROXIDES OF LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CESIUM, MAGNESIUM, CALCIUM, STRONTIUM AND BARIUM AND THE CARBONATES OF SODIUM, POTASSIUM, RUBIDIUM AND CESIUM AND AT LEAST ONE ORGANIC AMIDE, AND B. MAINTAINING AT LEAST A PORTION OF SAID COMPOSITION AT POLYMERIZATION CONDITIONS TO PRODUCE SAID POLYMER.
Claim 3
Dependent Claim
39 words
The method of claim 1 in which said polyhalo-substituted aromatic compound is employed in an amount within the range of from about 0.5 to about 2 gram-moles per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide.
Claim 4
Dependent Claim
37 words
The method of claim 1 in which said base is employed in an amount within the range of from about 1 to about 6 gram-equivalents per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide.
Claim 5
Dependent Claim
33 words
The method of claim 2 in which said organic amide is employed in an amount within the range of from about 100 grams to about 2500 grams per gram-mole of polyhalo-substituted aromatic compound.
Claim 6
Dependent Claim
25 words
The method of claim 1 in which said polyhalo-substituted aromatic compound is p-dichlorobenzene, said base is sodium hydroxide and said one compound is carbon disulfide.
Claim 7
Dependent Claim
25 words
The method of claim 1 in which said polyhalo-substituted aromatic compound is p-dichlorobenzene, said base is sodium hydroxide and said one compound is carbon oxysulfide.
Claim 8
Dependent Claim
70 words
The method of claim 1 in which said polyhalo-substituted aromatic compound is employed in an amount within the range of from about 0.5 to about 2 gram-moles per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide and said base is employed in an amount within the range of from about 1 to about 6 gram-equivalents per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide.
Claim 9
Dependent Claim
17 words
The method of claim 1 in which water is removed from said composition prior to step (b).
Claim 10
Independent Claim
110 words
The method of producing a polymer which comprises: a. contacting at least one compound selected from the group consisting of carbon disulfide and carbon oxysulfide, at least one base selected from the hydroxides of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and barium and the carbonates of sodium, potassium, rubidium and cesium and at least one organic amide to form a first composition; b. contacting at least a portion of said first composition with at least one polyhalo-substituted aromatic compound wherein the halogen atoms are attached to aromatic ring carbon atoms to form a second composition; and c. maintaining said second composition at polymerization conditions to produce said polymer.
Claim 11
Independent Claim
110 words
The method of producing a polymer which comprises: a. contacting at least one compound selected from the group consisting of carbon disulfide and carbon oxysulfide, at least one base selected from the hydroxides of lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium and barium and the carbonates of sodium, potassium, rubidium and cesium and at least one organic amide to form a first composition; b. contacting at least a portion of said first composition with at least one polyhalo-substituted aromatic compound wherein the halogen atoms are attached to aromatic ring carbon atoms to form a second composition; and c. maintaining said second composition at polymerization conditions to produce said polymer.
Claim 12
Dependent Claim
39 words
The method of claim 9 in which said polyhalo-substituted aromatic compound is employed in an amount within the range of from about 0.5 to about 2 gram-moles per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide.
Claim 13
Dependent Claim
37 words
The method of claim 9 in which said base is employed in an amount within the range of from about 1 to about 6 gram-equivalents per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide.
Claim 14
Dependent Claim
33 words
The method of claim 9 in which said organic amide is employed in an amount within the range of from about 100 grams to about 2500 grams per gram-mole of polyhalo-substituted aromatic compound.
Claim 15
Dependent Claim
25 words
The method of claim 9 in which said polyhalo-substituted aromatic compound is p-dichlorobenzene, said base is sodium hydroxide and said one compound is carbon disulfide.
Claim 16
Dependent Claim
25 words
The method of claim 9 in which said polyhalo-substituted aromatic compound is p-dichlorobenzene, said base is sodium hydroxide and said one compound is carbon oxysulfide.
Claim 17
Dependent Claim
18 words
The method of claim 9 in which water is removed from said first composition prior to step (b).
Claim 18
Dependent Claim
70 words
The method of claim 9 in which said polyhalo-substituted aromatic compound is employed in an amount within the range of from about 0.5 to about 2 gram-moles per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide and said base is employed in an amount within the range of from about 1 to about 6 gram-equivalents per gram-atom of sulfur in said carbon disulfide or said carbon oxysulfide.
References Cited (Backward Citations)
US3354129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |