US2883351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for creaming rubber latices and creaming agent used
Assignee: Phillips Petroleum Co
•
Filing: 1954-09-02
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Granted: 1959-04-21
•
Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 Carl A Uraneck
- 👤 Jr Durward F Dodgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:21
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/075; C08C1/08; Y; Y10; Y10S; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A PROCESS FOR CREAMING AN ALKALINE RUBBER LATEX WHICH COMPRISES FORMING AN AQUEOUS SOLUTION OF SOLUBLE ALGINATE AND AN ALKALINE SALT OF A POLYMERIC MATERIAL COMPRISING A MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, ALPHA, AND BETA ALKYL-SUBSTITUTED ACRYLIC ACID WHEREIN THE ALKYL GROUP CONTAINS 1 TO 8 CARBON ATOMS, SAID SALT BEING THE REACTION PRODUCT OF SAID POLYMERIC MATERIAL AND A BASE SELECTED FROM THE GROUP CONSISTING OF AMINES, AMMONIA AND ALKALI METAL HYDROXIDES THE SOLUTE IN SOLUTION BEING 10 TO 90 WEIGHT PERCENT POLYMER AND THE BALANCE SOLUBLE ALGINATE; ADDING SUFFICIENT AMOUNT OF SAID SOLUTION TO SAID LATEX TO PROVIDE 0.5 TO 10 WEIGHT PARTS SOLUTE PER 100 PARTS OF RUBBER; AND STIRRING SOLUTION AND LATEX UNTIL THE LATEX IS CREAMED.
Claim 2
Dependent Claim
125 words
A PROCESS FOR CREAMING AN ALKALINE RUBBER LATEX WHICH COMPRISES FORMING AN AQUEOUS SOLUTION OF SOLUBLE ALGINATE AND AN ALKALINE SALT OF A POLYMERIC MATERIAL COMPRISING A MONOMER SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, ALPHA, AND BETA ALKYL-SUBSTITUTED ACRYLIC ACID WHEREIN THE ALKYL GROUP CONTAINS 1 TO 8 CARBON ATOMS, SAID SALT BEING THE REACTION PRODUCT OF SAID POLYMERIC MATERIAL AND A BASE SELECTED FROM THE GROUP CONSISTING OF AMINES, AMMONIA AND ALKALI METAL HYDROXIDES THE SOLUTE IN SOLUTION BEING 10 TO 90 WEIGHT PERCENT POLYMER AND THE BALANCE SOLUBLE ALGINATE; ADDING SUFFICIENT AMOUNT OF SAID SOLUTION TO SAID LATEX TO PROVIDE 0.5 TO 10 WEIGHT PARTS SOLUTE PER 100 PARTS OF RUBBER; AND STIRRING SOLUTION AND LATEX UNTIL THE LATEX IS CREAMED.
References Cited (Backward Citations)
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US2138073A
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US2317328A
Cited
US2423766A
Cited
US2365020A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |