US4361623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant antistatic additives and antistatic fibers
Assignee: BASF Corp
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Filing: 1980-06-20
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Granted: 1982-11-30
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Expires: 2000-06-20
Abstract
Abstract A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of coating on said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product of a cross-linking agent and a polyoxyalkylene compound having as a nucleus a nitrogen containing reactive hydrogen containing compound with a diol which is halogenated.
Inventors
- 👤 David D. Newkirk
- 👤 Robert B. Login
- 👤 Basil Thir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:59
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/53; C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; D06M11/00; D06M11/32; D06M11/36; D06M11/47; D06M11/68; D06M11/70; D06M15/507; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
53 words
A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of coating on said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product having as a nucleus a nitrogen containing reactive hydrogen containing compound with a diol which is halogenated.
Claim 2
Dependent Claim
53 words
A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of coating on said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product having as a nucleus a nitrogen containing reactive hydrogen containing compound with a diol which is halogenated.
Claim 3
Dependent Claim
14 words
The flame-retardant antistatic fiber of claim 1 wherein said fiber is a polyamide fiber.
Claim 4
Dependent Claim
30 words
The composition of claim 1 wherein said polymer is dispersed on the surface of said fiber by coating said fiber with said polymer subsequent to a weaving and dyeing operation.
Claim 5
Dependent Claim
39 words
The composition of claim 3 wherein said polymer is incorporated on the surface of said fiber by dissolving said polymer in a solvent, coating said fiber with a solution of said polymer, and evaporating said solvent from said solution.
Claim 6
Dependent Claim
45 words
The composition of claim 3 wherein said polyoxyalkylene compound is a conjugated polyoxyalkylene compound wherein said nitrogen compound has up to 6 carbon atoms per molecule and is selected from the group consisting of ammonia, primary alkyl amines, alkylene polyamines, alkanolamines, and heterocyclic nitrogen compounds.
Claim 7
Dependent Claim
24 words
The composition of claim 5 wherein said conjugated polyoxyalkylene compound is a chain extended tetrol based upon a diamine wherein said diamine is ethylenediamine.
Claim 8
Dependent Claim
31 words
The composition of claim 6 wherein said cross-linking agent is selected from the group consisting of halogenated or non-halogenated aliphatic or aromatic diacids, anhydrides, esters or acid halides and mixtures thereof.
Claim 9
Dependent Claim
15 words
The composition of claim 7 wherein said halogenated diol is an alkoxylated brominated bisphenol A.
Claim 10
Dependent Claim
28 words
The composition of claim 8 wherein said halogenated diol is the reaction product of tetrabromobisphenol A, propylene oxide and ethylene oxide and wherein said cross-linking agent is dimethylterephthalate.
References Cited (Backward Citations)
US4029694A
Cited
US4118327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-29 | 1986-05-31 | 1986-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-29 | 1990-05-31 | 1990-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-29 | 1994-05-31 | 1994-11-30 | $7700.00 | Window Closed / Lapsed |