Patent US3886105A successfully refreshed from Google Patents.
US3886105A
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Polyolefin composition and use of same in alkaline solutions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1972-08-04
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Granted: 1975-05-27
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Expires: 1992-08-04
Abstract
Abstract Solid polyolefins of alpha monoolefins having 2 to 8 carbon atoms in the molecule such as, but not limited to, polyethylene and polypropylene containing a stearate radical such as calcium, zinc or magnesium stearate or stearic acid have added thereto an antifoaming agent of a barium compound which forms a water insoluble soap with the stearate radical in an alkaline solution.
Inventors
- 👤 Henry G Schutze
- 👤 Hulen L Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:05
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; B; B01; B01D; B01D53/00; B01D53/14; B01D53/1493; C08K5/00; C08K5/04; C08K5/09; C08K5/098; B01J; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30203; B01J2219/30215; B01J2219/304; B01J2219/30466
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
71 words
POLYOLEFIN RESIN COMPOSITION COMPRISING A SOLID POLYMER OF AN ALIPHA MONOOLEFIN HAVING 2 TO 8 CARBN ATOMS IN THE MOLECULE CONTAINING A COMPOUND HAVING A STEARATE RADICAL A STEARATE RADICAL UNSASSOICATED WITH BARIUM CATION AND AN AMOUNT OF A WATER SOLUBLE BARIUM COMPOUND CAPABLE OF FORMING SUFFICIENT WATER INSOLUBLE BARIUM STEARATE SOAPS WITH THE STEARATE RADICAL IN AQUEOUS ALKALINE ENVIRONMENTS TO PREVENT FOAMING THERIN CAUSED BY STEARATE RADICALS UNASSOCIATED WITH BARIUM.
Claim 2
Dependent Claim
71 words
POLYOLEFIN RESIN COMPOSITION COMPRISING A SOLID POLYMER OF AN ALIPHA MONOOLEFIN HAVING 2 TO 8 CARBN ATOMS IN THE MOLECULE CONTAINING A COMPOUND HAVING A STEARATE RADICAL A STEARATE RADICAL UNSASSOICATED WITH BARIUM CATION AND AN AMOUNT OF A WATER SOLUBLE BARIUM COMPOUND CAPABLE OF FORMING SUFFICIENT WATER INSOLUBLE BARIUM STEARATE SOAPS WITH THE STEARATE RADICAL IN AQUEOUS ALKALINE ENVIRONMENTS TO PREVENT FOAMING THERIN CAUSED BY STEARATE RADICALS UNASSOCIATED WITH BARIUM.
Claim 3
Dependent Claim
17 words
Polyolefin composition in accordance with claim 1 in which the barium compound is finely divided barium oxide.
Claim 4
Dependent Claim
17 words
Polyolefin composition in accordance with claim 1 in which the barium compound is finely divided barium hydroxide.
Claim 5
Dependent Claim
17 words
Polyolefin composition in accordance with claim 1 in which the stearate radical is derived from calcium stearate.
Claim 6
Dependent Claim
17 words
Polyolefin composition in accordance with claim 1 in which the stearate radical is derived from stearic acid.
Claim 7
Dependent Claim
17 words
Polyolefin composition in accordance with claim 1 in which the stearate radical is derived from zinc stearate.
Claim 8
Dependent Claim
27 words
Polyolefin composition in accordance with claim 1 in which the amount of barium compound is from about 0.01 to about 1.0 percent by weight of the polyolefin.
Claim 9
Dependent Claim
13 words
Polyolefin composition in accordance with claim 1 in which the polymer is polypropylene.
Claim 10
Dependent Claim
50 words
Polyolefin composition in accordance with claim 1 in which: a. the barium compound is finely divided barium hydroxide; b. the amount of barium hydroxide is from about 0.01 to about 1.0 percent of the polymer; c. the polymer is polypropylene; and d. the stearate radical is derived from zinc stearate.
Claim 11
Dependent Claim
26 words
A composition according to claim 1 which is in the form of a molded contacting article for use in an alkaline solution in a contacting zone.
Claim 12
Dependent Claim
14 words
An article in accordance with claim 10 in which the solid polyolefin is polypropylene.
Claim 13
Dependent Claim
60 words
A contacting article for use in an alkaline solution which comprises solid polypropylene having admixed therein a stearate radical unassociated with barium cation and an antifoaming amount of a water soluble barium compound which forms sufficient water insoluble soaps with said stearate radical in aqueous alkaline environments to prevent foaming therein caused by stearate radicals which are unassociated with barium.
Claim 14
Dependent Claim
60 words
A contacting article for use in an alkaline solution which comprises solid polypropylene having admixed therein a stearate radical unassociated with barium cation and an antifoaming amount of a water soluble barium compound which forms sufficient water insoluble soaps with said stearate radical in aqueous alkaline environments to prevent foaming therein caused by stearate radicals which are unassociated with barium.
Claim 15
Dependent Claim
18 words
A contacting article in accordance with claim 12 in which the barium compound is finely divided barium hydroxide.
Claim 16
Dependent Claim
18 words
A contacting article in accordance with claim 12 in which the barium compound is finely divided barium oxide.
Claim 17
Dependent Claim
28 words
A contacting article in accordance with claim 12 in which the amount of barium compound is from about 0.01 to about 1.0 percent by weight of the polypropylene.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |