US3617162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for dyeing glass fibers and product thereof
Assignee: EIDP Inc
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Filing: 1968-02-05
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Granted: 1971-11-02
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Expires: 1988-02-05
Abstract
Abstract Glass fibers are coronized and then contacted with aqueous chromic acid. The chromic acid treatment increases the surface area of the fibers and deposits chromate ions on their surface. The treated fibers are washed to remove excess chromate ions, dyed with a cationic or mordant dye and then overcoated with a suitable material, e.g., a plastic or elastomeric film or a chrome complex.
Inventors
- 👤 Siegfried K June
- 👤 William A Neely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:16
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/002; C03C25/10; C03C25/465; C03C25/475; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2942; Y10T428/2949; Y10T428/2958
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
21 words
The process of claim 1 wherein the glass fibers are coronized prior to the treatment with the aqueous chromic acid solution.
Claim 2
Independent Claim
74 words
A method for treating glass fibers comprising contacting glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, washing said fibers, and dyeing said fibers with a cationic or mordant type dye.
Claim 3
Independent Claim
72 words
A method for treating glass fibers comprising contacting glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, washing said fibers, and dyeing said fibers with a cationic type dye.
Claim 4
Independent Claim
95 words
A method for treating glass fibers comprising contacting glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, washing said fibers, dyeing said fibers with a cationic or mordant type dye, and coating with an overcoat material selected from the group consisting of chrome complexes, elastomeric materials, plastic materials, resinous materials, and organo-silanes.
Claim 5
Dependent Claim
92 words
Method for treating glass fibers comprising contacting glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, washing said fibers, dyeing said fibers with a cationic type dye, and coating with an overcoat material selected from the group consisting of chrome complexes, elastomeric materials, plastic materials, resinous materials, and organosilanes.
Claim 6
Dependent Claim
66 words
Glass fibers suitable for dyeing with cationic and mordant dyes being prepared by treating glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increasEd and a chromium-containing material is deposited on the surface of the fibers.
Claim 7
Dependent Claim
71 words
Colored glass fibers being prepared by treating glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, and then dyeing the fibers with a cationic or mordant type dye.
Claim 8
Dependent Claim
85 words
Colored glass fibers being prepared by treating glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, and then dyeing the fibers with a cationic or mordant type dye and coating the dyed fibers with a protective material which gives them laundry resistance.
Claim 9
Dependent Claim
68 words
Colored glass fibers being prepared by treating glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers, and then dyeing the fibers with a cationic type dye.
Claim 10
Dependent Claim
83 words
Colored glass fibers being prepared by treating glass fibers with a 0.1 to 50 weight percent aqueous solution of chromic acid containing 0 to 10 weight percent of H2SO4 at a temperature of about 130 to 212* F. until the surface area of said fibers is increased and a chromium-containing material is deposited on the surface of the fibers and then dyeing the fibers with a cationic type dye and coating the dyed fibers with a protective material which gives them laundry resistance.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |