US3755249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanently antistatic and melt-spinnable polyamide compositions
Assignee: Teijin Ltd
•
Filing: 1971-11-29
•
Granted: 1973-08-28
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Expires: 1991-11-29
Abstract
Abstract Polyamide compositions having excellent melt-spinnability and durable antistatic property, while fully retaining the favorable properties inherent in polyamides, which comprises a polyamide containing as an antistatic agent one which comprises (A) a polyalkylene oxide-added secondary alkylamine and (B) a polyalkylene oxide-added tertiary alkylamine, the secondary alkylamine (A) occupying 5 - 50 percent by weight based on the sum weight the above compounds (A) and (B), and the antistatic agent being incorporated in an amount of 1 - 15 percent by weight based on the weight of the polyamide.
Inventors
- 👤 Y Fujita
- 👤 T Ashida
- 👤 K Moriyama
- 👤 E Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:03
CPC Classifications
C; C08; C08L; C08L77/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
27 words
The polyamide composition of claim 1, wherein p, q and r satisfy the relationships: p is between 10 and 45 and (q+r) is between 15 and 50
Claim 2
Dependent Claim
39 words
an organotin compound of the formula, (X)2 Sn (OOCZ)2 wherein X and Z are each a member selected from the group consisting of alkyl, cycloalkyl, aryl, and aralkyl radicals, and X and Z may be the same or different.
Claim 3
Dependent Claim
43 words
The polyamide composition of claim 1, wherein n, p, q, and r satisfy the relationship: (p+q+r)/2n is between 0.8 and 2.0. and the secondary alkylamine (A) occupies 15 - 35 percent by weight based on the sum weight of compounds (A) and (B).
Claim 4
Dependent Claim
32 words
The polyamide composition of claim 1, wherein the sum of the secondary alkylamine (A) and tertiary alkylamine (B) is 1.5 - 7 percent by weight based on the weight of the polyamide.
Claim 5
Dependent Claim
18 words
The composition of claim 1, wherein the polyamide composition is in the form of powder, granule, or pellet.
Claim 6
Dependent Claim
18 words
The composition of claim 1, wherein the polyamide composition is in the form of filaments or fibrous structures.
Claim 7
Dependent Claim
52 words
The compositon of claim 1, wherein the composition comprises, in addition to said secondary alkylamine (A) and said tertiary alkylamine (B), at least one nickel carboxylate in the amount of 2 - 500 ppm (as nickel concentration) based on the total weight of the polyamide, secondary alkylamine (A), and tertiary alkylamine (B).
Claim 8
Dependent Claim
47 words
The composition of claim 1, wherein the composition comprises, in addition to said secondary alkylamine (A) and said tertiary alkylamine (B), chromic fluoride in the amount of 0.001 - 0.1% by weight based on the total weight of the polyamide, secondary alkylamine (A) and teritary alkylamine (B).
Claim 9
Dependent Claim
21 words
The composition of claim 1, wherein the composition comprises, in addition to said secondary alkylamine (A) and said tertiary alkylamine (B),
Claim 10
Dependent Claim
53 words
The composition of claim 9, wherein said phenolic anti-oxidation stabilizer is incorporated within the quantitative range of 0.01 to 3 percent by weight based on the total weight of the polyamide, secondary alkylamine (A) and tertiary alkylamine (B), and the organotin compound, from 0.05 to 1 percent by weight on the same basis.
References Cited (Backward Citations)
CH347979A
Cited
US3189575A
Cited
US3163492A
Cited
US3317452A
Cited
US3654223A
Cited
US3573244A
Cited
US3591563A
Cited
US3654235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |