Patent US3982097A successfully refreshed from Google Patents.
Patent US3061472A successfully refreshed from Google Patents.
US3061472A
Expired / Lapsed
US
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Sizing hydrophobic fibers with acrylate polymers and gelatinized starch or graft copolymers thereof
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1960-03-02
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Granted: 1962-10-30
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Expires: 1980-03-02
Abstract
No abstract record available.
Inventors
- 👤 Charles E Brockway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:01
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/564; C; C08; C08F; C08F251/00; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/4833; C08G18/83; C08G18/84; C08L; C08L3/00; C08L3/02; C09; C09J; C09J103/00; C09J103/02; C09J133/00; C09J133/04; C09J133/06; C09J133/08; D06M15/01; D06M15/03; D06M15/11; D06M15/21; D06M15/263; D06M15/267; C08L2666/00; C08L2666/02; C08L71/00; C08L71/02; Y; Y10; Y10S; Y10S8/00; Y10S8/04; Y10S8/18; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T442/00; Y10T442/30; Y10T442/3049; Y10T442/3179; Y10T442/322; Y10T442/3228
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN THE PROCESS OF SIZING THAT COMPRISES APPLYING TO A YARN AN AQUEOUS DISPERSION OF A SIZING COMPOUND AND DRYING THE YARN, THE IMPROVEMENT COMPRISING APPLYING AS SAID SIZING COMPOUND, GELATINIZED STARCH AND THE POLYMER OF THE ACRYLIC ACID ESTER OF AN ALKANOL OF FROM TWO TO FOUR CARBON ATOMS, SAID DISPERSION CONTAINING UP TO 30% (BASED ON THE COMBINED STARCH AND ACRYLIC ESTER WEIGHT) OF A NONIONIC SURFACE ACTIVE AGENT WHOSE WATER SOLUBLE PORTION IS A POLYOXYETHYLENE OF FROM 2 TO 120 OXYETHYLENE UNITS AND WHOSE WATER-INSOLUBLE PORTION CONTAINS AT LEAST ONE ALKYL GROUP OF FOUR TO 18 CARBON ATOMS, THE RATIO OF STARCH TO ARCYLIC ESTER LYING IN THE RANGE OF 7:3 TO 1:19.
Claim 2
Dependent Claim
116 words
IN THE PROCESS OF SIZING THAT COMPRISES APPLYING TO A YARN AN AQUEOUS DISPERSION OF A SIZING COMPOUND AND DRYING THE YARN, THE IMPROVEMENT COMPRISING APPLYING AS SAID SIZING COMPOUND, GELATINIZED STARCH AND THE POLYMER OF THE ACRYLIC ACID ESTER OF AN ALKANOL OF FROM TWO TO FOUR CARBON ATOMS, SAID DISPERSION CONTAINING UP TO 30% (BASED ON THE COMBINED STARCH AND ACRYLIC ESTER WEIGHT) OF A NONIONIC SURFACE ACTIVE AGENT WHOSE WATER SOLUBLE PORTION IS A POLYOXYETHYLENE OF FROM 2 TO 120 OXYETHYLENE UNITS AND WHOSE WATER-INSOLUBLE PORTION CONTAINS AT LEAST ONE ALKYL GROUP OF FOUR TO 18 CARBON ATOMS, THE RATIO OF STARCH TO ARCYLIC ESTER LYING IN THE RANGE OF 7:3 TO 1:19.
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |