Patent US2776223A successfully refreshed from Google Patents.
US2776223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a pile fabric of cellulose acetate
Assignee: Acordis UK Ltd
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Filing: 1953-08-24
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Granted: 1957-01-01
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Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Brown Russell Jacques
- 👤 Downing John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:09
CPC Classifications
D; D04; D04H; D04H11/00; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
PROCESS FOR THE PRODUCTION OF A PILE FABRIC BY BONDING STAPLE FIBRES OF CELLULOSE ACETATE TO A BASE FABRIC, COMPRISING, IN TURN, COATING THE BASE FABRIC WITH A SOLUTION IN VOLATILE SOLVENT OF AN ADHESIVE CONSISTING OF A 1,6 HEXAMETHYLENE DIISOCYANATE-MODIFIED CONDENSATION POLYMER OF ETHYLENE GLYCOL, ADIPIC ACID, AND MONOETHANOLAMINE IN MOLAR RATIO OF 5:6:1, 2,4-DICHLORONAPHTHOL AND THE HEXAMETHYL ETHER OF HEXAMETHYLOL MELAMINE, EVAPORATING OFF THE SOLVENT TO FORM AN ADHESIVE LAYER, APPLYING THE STAPLE FIBRES OF CELLULOSE ACETATE BY ELECTRO-STATIC MEANS TO THE ADHESIVE LAYER, PASSING THE FABRIC THROUGH A HEATED REGION TO EFFECT CROSS-LINKING OF THE ADHESIVE AND COLLECTING THE FABRIC WITHOUT DAMAGING THE PILE.
Claim 2
Dependent Claim
107 words
PROCESS FOR THE PRODUCTION OF A PILE FABRIC BY BONDING STAPLE FIBRES OF CELLULOSE ACETATE TO A BASE FABRIC, COMPRISING, IN TURN, COATING THE BASE FABRIC WITH A SOLUTION IN VOLATILE SOLVENT OF AN ADHESIVE CONSISTING OF A 1,6 HEXAMETHYLENE DIISOCYANATE-MODIFIED CONDENSATION POLYMER OF ETHYLENE GLYCOL, ADIPIC ACID, AND MONOETHANOLAMINE IN MOLAR RATIO OF 5:6:1, 2,4-DICHLORONAPHTHOL AND THE HEXAMETHYL ETHER OF HEXAMETHYLOL MELAMINE, EVAPORATING OFF THE SOLVENT TO FORM AN ADHESIVE LAYER, APPLYING THE STAPLE FIBRES OF CELLULOSE ACETATE BY ELECTRO-STATIC MEANS TO THE ADHESIVE LAYER, PASSING THE FABRIC THROUGH A HEATED REGION TO EFFECT CROSS-LINKING OF THE ADHESIVE AND COLLECTING THE FABRIC WITHOUT DAMAGING THE PILE.
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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |