US3037835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes for improving the dyeability of textile fibers, films, and moulded articles
Assignee: Montedison SpA
•
Filing: 1959-06-30
•
Granted: 1962-06-05
•
Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Bonvicini Alberto
- 👤 Caldo Cornello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:28
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/22; C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08L; C08L101/00; C08L33/00; C08L33/18; C08L33/20; C08L57/00; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/61; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5242; D06P3/00; D06P3/001; D06P3/34; D06P3/40; D06P3/401; D06P3/70; D06P3/74; C08L79/00; C08L79/02; Y; Y10; Y10S; Y10S8/00; Y10S8/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A PROCESS COMPRISING IMPROVING THE DYEABILITY OF SPUN FIBERS FORMES OF AT LEAST ONE RESIN TAKEN FROM THE GROUP CONSISTING OF CELLULOSE ACETATE AND HOMOPOLYMERS AND COPOYLMERS OF ACRYLONITRILE, VINYL CHLORIDE, METHYL ACRYLATE, AND METHYL METHACRYLATE, BY INTIMATLEY INCORPORATING THEREWITH, AT A STAGE PRIOR TO SPINNING AND DYEING, A MODIFIED POLYIMINE, SPINNING THE RESIN IN SUSPENSION IN DIMETHYL FORMAMIDE INTO A FIBER, AND DYEING THE FIBER, SAID MODIFIED POLYIMINE BEING CYANO-ETHYLATED POLYMERIZED ETHYLENE IMINE PREPARED BY REACTING ACRYLONITRILE AND POLYMERIZED ETHYLENE IMINE.
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |