Patent US3216965A successfully refreshed from Google Patents.
US3216965A
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US
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Blend of a polyterephthalamide and a lower melting polyamide for improved dye receptivity
Assignee: Celanese Corp
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Filing: 1962-03-29
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Granted: 1965-11-09
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Cipriani Cipriano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:25
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/02; C08L75/00; C08L77/06; C08L2205/00; C08L2205/02; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924; Y10S8/925
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
74 words
A COMPOSITION COMPRISING A POLYMER MIXTURE CONTAINING A DIFFICULTLY MELTABLE POLYTEREPHTHALAMIDE AND AN EASILY MELTABLE POLYAMIDE SELECTED FROM THE GROUP CONSISTING OF A POLYAMIDE OF AN ALKYLENE DICARBOXYLIC ACID CONTAINING 5 TO 12 CARBON ATOMS AND AN ALIPHATIC SATURATED DIAMINE CONTAINING 2 TO 12 CARBON ATOMS, A POLYAMIDE OF AN OMEGA-AMINOALKANOIC ACID CONTAINING 6 TO 10 CARBON ATOMS, AND A POLYAMIDE OF A LACTAM OF AN OMEGA-AMINOALKANOIC ACID CONTAINING 6 TO 10 CARBON ATOMS.
Claim 2
Dependent Claim
74 words
A COMPOSITION COMPRISING A POLYMER MIXTURE CONTAINING A DIFFICULTLY MELTABLE POLYTEREPHTHALAMIDE AND AN EASILY MELTABLE POLYAMIDE SELECTED FROM THE GROUP CONSISTING OF A POLYAMIDE OF AN ALKYLENE DICARBOXYLIC ACID CONTAINING 5 TO 12 CARBON ATOMS AND AN ALIPHATIC SATURATED DIAMINE CONTAINING 2 TO 12 CARBON ATOMS, A POLYAMIDE OF AN OMEGA-AMINOALKANOIC ACID CONTAINING 6 TO 10 CARBON ATOMS, AND A POLYAMIDE OF A LACTAM OF AN OMEGA-AMINOALKANOIC ACID CONTAINING 6 TO 10 CARBON ATOMS.
Claim 3
Dependent Claim
23 words
A SHAPED ARTICLE OF THE COMPOSITION OF CLAIM 10 DYED WITH A MEMBER OF THE GROUP CONSISTING OF ACID DYES AND DISPERSE DYES.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |