Patent US4312966A successfully refreshed from Google Patents.
US4312966A
Expired / Lapsed
US
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Flame retardant antistatic additives and antistatic fibers
Assignee: BASF Corp
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Filing: 1980-06-20
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Granted: 1982-01-26
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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 dispersing in said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product of a polyester of a polyoxyalkylene compound having as a nucleus a nitrogen-containing reactive hydrogen containing compound with a reactant selected from the group consisting of at least one of an aliphatic or aromatic diacid, anhydride or acid halide thereof and a diol wherein at least one of said reactant is halogenated.
Inventors
- 👤 David D. Newkirk
- 👤 Robert B. Login
- 👤 Basil Thir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:39
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/47; D06M11/68; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/53; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of dispersing in said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product of a polyester of a polyoxyalkylene compound having as a nucleus a nitrogen-containing reactive hydrogen containing compound with a reactant selected from the group consisting of at least one of an aliphatic or aromatic diacid, anhydride or acid halide thereof and a diol wherein at least one of said reactant is halogenated.
Claim 2
Dependent Claim
88 words
A flame-retardant, antistatic synthetic polymeric fiber which is the product of the process of dispersing in said fiber about 1 percent to about 12 percent by weight of a polymer composition which is the reaction product of a polyester of a polyoxyalkylene compound having as a nucleus a nitrogen-containing reactive hydrogen containing compound with a reactant selected from the group consisting of at least one of an aliphatic or aromatic diacid, anhydride or acid halide thereof and a diol wherein at least one of said reactant 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
45 words
The composition of claim 1 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 5
Dependent Claim
24 words
The composition of claim 3 wherein said conjugated polyoxyalkylene compound is a chain extended tetrol based upon a diamine wherein said diamine is ethylenediamine.
Claim 6
Dependent Claim
13 words
The composition of claim 4 wherein said diol reactant is a halogenated diol.
Claim 7
Dependent Claim
15 words
The composition of claim 5 wherein said halogenated diol is an alkoxylated brominated bisphenol A.
Claim 8
Dependent Claim
21 words
The composition of claim 6 wherein said halogenated diol is the reaction product of tetrabromobisphenol A, propylene oxide and ethylene oxide.
Claim 9
Dependent Claim
30 words
The composition of claim 1 wherein said polymer is dispersed in said fiber by incorporating said polymer as a polymer additive in a polymer melt prior to melt-spinning said fibers.
References Cited (Backward Citations)
FR2151035A1
Cited
US4029694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |