US3009760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coloring shaped struc-
Assignee: —
•
Filing: —
•
Granted: 1961-11-21
•
Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:20
CPC Classifications
D; D06; D06P; D06P5/00; D06P3/00; D06P3/79; D06P1/00; D06P1/44; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN IMPROVED PROCESS OF DYEING A SHAPED ARTICLE COMPOSED OF A MACROMOLECULAR POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, AND COPOLYMERS OF ETHYLENE AND PROPYLENE, WHICH COMPRISES APPLYING TO THE SURFACE OF SAID POLYMER AT ROOM TEMPERATURE A SOLUTION OF A FAT-SOLUBLE DYESTUFF IN A THERMOPLASTIC DYEING ASSISTANT SELECTED FROM THE GROUP CONSISTING OF CHLORINATED DIPHENYL AND CHLORINATED NAPHTHALENE, SAID ASSISTANT BEING SOLID AT ROOM TEMPERATURE BUT SOFTENING WHEN HEATED AND, WHEN HEATED ABOVE ITS MELTING POINT WILL SWELL THE MACROMOLECULAR POLYMER, DRYING THE POLYMERIC ARTICLE, AND THEN HEATING IT TO A TEMPERATURE ABOVE THE MELTING POINT OF THE DYEING ASSISTANT BUT BELOW THE CRYSTALLITE MELTING POINT OF THE MACROMOLECULAR POLYMER, WHEREBY THE THERMOPLASTIC DYEING ASSISTANT CARRYING THE DYESTUFF SWELLS SAID POLYMER AND PENETRATES INTO IT.
Claim 2
Dependent Claim
128 words
AN IMPROVED PROCESS OF DYEING A SHAPED ARTICLE COMPOSED OF A MACROMOLECULAR POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, AND COPOLYMERS OF ETHYLENE AND PROPYLENE, WHICH COMPRISES APPLYING TO THE SURFACE OF SAID POLYMER AT ROOM TEMPERATURE A SOLUTION OF A FAT-SOLUBLE DYESTUFF IN A THERMOPLASTIC DYEING ASSISTANT SELECTED FROM THE GROUP CONSISTING OF CHLORINATED DIPHENYL AND CHLORINATED NAPHTHALENE, SAID ASSISTANT BEING SOLID AT ROOM TEMPERATURE BUT SOFTENING WHEN HEATED AND, WHEN HEATED ABOVE ITS MELTING POINT WILL SWELL THE MACROMOLECULAR POLYMER, DRYING THE POLYMERIC ARTICLE, AND THEN HEATING IT TO A TEMPERATURE ABOVE THE MELTING POINT OF THE DYEING ASSISTANT BUT BELOW THE CRYSTALLITE MELTING POINT OF THE MACROMOLECULAR POLYMER, WHEREBY THE THERMOPLASTIC DYEING ASSISTANT CARRYING THE DYESTUFF SWELLS SAID POLYMER AND PENETRATES INTO IT.
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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |