US3929708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arylene sulfide polymers comprising silicone fluids
Assignee: Phillips Petroleum Co
•
Filing: 1974-08-15
•
Granted: 1975-12-30
•
Expires: 1994-08-15
Abstract
Abstract The processing characteristics such as molding and extrudability of poly(arylene sulfide) resins are improved by incorporating therein a small amount of a silicone fluid. Resin properties such as wettability, coefficient of friction, and color are also improved.
Inventors
- 👤 Donnie G Brady
- 👤 Fay W Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:21
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/02; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
A COMPOSITION OF MATTER COMPRISING AT LAST ONE (POLY(ARYLENE SULFIDE) RESIN HAVING A MELT POINT IN THE APPROXIMATE RANGE OF 400* TO 800*F, AND A MELT FLOW IN THE APPROXIMATE RANGE OF 0.1 TO 3,000, AND FROM ABOUT 0.05 TO ABOUT 5 WEIGHT PERCENT OF A THERMALLY STABLE SILICONE FLUID, BASED ON THE COMBINED WEIGHT OF SAID RESIN AND SAID FLUID, WHEREIN SAID SILICONE FLUID IS A POLYSILOXANE HAVING A MOLCULAR WEIGHT IN THE APPROXIMATE RANGE OF 500 TO 3,000 AND HAVING THE REPEATING UNITS
Claim 2
Dependent Claim
85 words
A COMPOSITION OF MATTER COMPRISING AT LAST ONE (POLY(ARYLENE SULFIDE) RESIN HAVING A MELT POINT IN THE APPROXIMATE RANGE OF 400* TO 800*F, AND A MELT FLOW IN THE APPROXIMATE RANGE OF 0.1 TO 3,000, AND FROM ABOUT 0.05 TO ABOUT 5 WEIGHT PERCENT OF A THERMALLY STABLE SILICONE FLUID, BASED ON THE COMBINED WEIGHT OF SAID RESIN AND SAID FLUID, WHEREIN SAID SILICONE FLUID IS A POLYSILOXANE HAVING A MOLCULAR WEIGHT IN THE APPROXIMATE RANGE OF 500 TO 3,000 AND HAVING THE REPEATING UNITS
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein said resin is poly(phenylene sulfide).
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein said silicone fluid is dimethyl polysiloxane.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein said silicone fluid is phenyl methyl polysiloxane.
Claim 6
Independent Claim
101 words
A method for improving the molding and extruding characteristics of poly(arylene sulfide) resins without substantially altering other physical properties which comprises incorporating therein from about 0.05 to about 5 weight percent of a thermally stable silicone fluid, based on the weight of resin plus the weight of silicone fluid; wherein said resin has a melt point in the approximate range of 400* to 800*F and a melt flow in the approximate range of 0.1 to 3,000; and wherein said silicone fluid is a polysiloxane having a molecular weight in the approximate range of 500 to 3,000 and having the repeating units
Claim 7
Independent Claim
101 words
A method for improving the molding and extruding characteristics of poly(arylene sulfide) resins without substantially altering other physical properties which comprises incorporating therein from about 0.05 to about 5 weight percent of a thermally stable silicone fluid, based on the weight of resin plus the weight of silicone fluid; wherein said resin has a melt point in the approximate range of 400* to 800*F and a melt flow in the approximate range of 0.1 to 3,000; and wherein said silicone fluid is a polysiloxane having a molecular weight in the approximate range of 500 to 3,000 and having the repeating units
Claim 8
Dependent Claim
11 words
The method of claim 5 wherein said resin is poly(phenylene sulfide).
Claim 9
Dependent Claim
12 words
The method of claim 5 wherein said silicone fluid is dimethyl polysiloxane.
Claim 10
Dependent Claim
13 words
The method of claim 5 wherein said silicone fluid is phenyl methyl polysiloxane.
References Cited (Backward Citations)
US2471850A
Cited
US3487954A
Cited
US3684756A
Cited
US3725362A
Cited
US3811903A
Cited
US3737411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |