Patent US4597756A successfully refreshed from Google Patents.
US4074005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flock treatment
Assignee: Westpoint Pepperell Inc
•
Filing: 1976-02-20
•
Granted: 1978-02-14
•
Expires: 1996-02-20
Abstract
Abstract Flock is treated with a metal salt of a long chain aliphatic acid to control static charges, increase flow and reduce waste. The salt may be applied from a water solution, or from an aqueous mixture of the metal and the acid under high shear mixing conditions under which at least a part of the acid is converted to the salt.
Inventors
- 👤 Ricky L. Moore
- 👤 Winston E. Hagborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/184; D06M13/188; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
64 words
A method for the treatment of flock which comprises suspending the flock in water which contains a linear, saturated aliphatic monocarboxylic acid having at least 8 carbon atoms and a metal ion, in an amount sufficient to increase the flow of said flock, at least partially in the form of a salt of said acid and said metal, and separating and drying the flock.
Claim 2
Independent Claim
64 words
A method for the treatment of flock which comprises suspending the flock in water which contains a linear, saturated aliphatic monocarboxylic acid having at least 8 carbon atoms and a metal ion, in an amount sufficient to increase the flow of said flock, at least partially in the form of a salt of said acid and said metal, and separating and drying the flock.
Claim 3
Dependent Claim
22 words
A method for the treatment of flock as set forth in claim 1 wherein the metal ion is a divalent metal ion.
Claim 4
Dependent Claim
30 words
A method for the treatment of flock as set forth in claim 2 wherein the divalent metal ion is a metal of Group II of the Periodic Table of Elements.
Claim 5
Dependent Claim
19 words
A method for the treatment of flock as set forth in claim 3 wherein said metal ion is calcium.
Claim 6
Dependent Claim
22 words
A method for the treatment of flock as set forth in claim 1 wherein said acid contains at least 10 carbon toms.
Claim 7
Dependent Claim
22 words
A method for the treatment of flock as set forth in claim 5 wherein said acid contains at least 12 carbon atoms.
Claim 8
Dependent Claim
22 words
A method for the treatment of flock as set forth in claim 6 wherein said acid contains 14 to 20 carbon atoms.
Claim 9
Dependent Claim
19 words
A method for the treatment of flock as set forth in claim 7 wherein said acid comprises stearic acid.
Claim 10
Dependent Claim
21 words
A method for the treatment of flock as set forth in claim 8 wherein the flock is treated with calcium stearate.
Claim 11
Dependent Claim
25 words
A method for the treatment of flock as set forth in claim 9 wherein the calcium stearate is preformed prior to introduction into said water.
Claim 12
Dependent Claim
22 words
A method for the treatment of flock as set forth in claim 1 wherein the flock is a synthetic or man-made textile.
Claim 13
Dependent Claim
32 words
A method for the treatment of flock as set forth in claim 11 wherein the flock is selected from the group consisting of polyester, polyamide, polyolefin, rayon, cellulose acetate and cellulose triacetate.
Claim 14
Dependent Claim
18 words
A method for the treatment of flock as set forth in claim 12 wherein the flock is polyamide.
Claim 15
Dependent Claim
19 words
A method for the treatment of flock as set forth in claim 13 wherein the flock is nylon 66.
Claim 16
Dependent Claim
27 words
A method for the treatment of flock as set forth in claim 1 wherein the flock is 1.5 to 40 dpf and 0.5 to 15 mm long.
Claim 17
Dependent Claim
24 words
A method for the treatment of flock as set forth in claim 15 in which the flock is 3-15 dpf and 1-8 mm long.
Claim 18
Dependent Claim
23 words
A method for the treatment of flock as set forth in claim 16 wherein the flock is 3 dpf and 2 mm long.
Claim 19
Dependent Claim
26 words
A method for the treatment of flock as set forth in claim 1 wherein the amount of said acid is 0.025 to 0.3 g/liter of water.
Claim 20
Dependent Claim
28 words
A method for the treatment of flock as set forth in claim 1 wherein the acid and metal ion are introduced into said water as a preformed salt.
Claim 21
Dependent Claim
11 words
Flock which has been treated by the method of claim 1.
Claim 22
Independent Claim
49 words
A method for the treatment of nylon 66 flock which is 3 dpf, 2 mm long, which comprises suspending 20 grams per liter of the flock in water to which has been added at least 0.1 gram per liter of preformed calcium stearate, and separating and drying the flock.
Claim 23
Independent Claim
49 words
A method for the treatment of nylon 66 flock which is 3 dpf, 2 mm long, which comprises suspending 20 grams per liter of the flock in water to which has been added at least 0.1 gram per liter of preformed calcium stearate, and separating and drying the flock.
Claim 24
Independent Claim
53 words
A method for the treatment of flock which comprises agitating, under high shear mixing conditions, water which contains at least about 3 parts per million of a metal ion and a linear, saturated, aliphatic, monocarboxylic acid containing at least 8 carbon atoms, suspending flock in the water, and separating and drying the flock.
Claim 25
Independent Claim
53 words
A method for the treatment of flock which comprises agitating, under high shear mixing conditions, water which contains at least about 3 parts per million of a metal ion and a linear, saturated, aliphatic, monocarboxylic acid containing at least 8 carbon atoms, suspending flock in the water, and separating and drying the flock.
References Cited (Backward Citations)
US3490938A
Cited
US3755450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |