Patent US4092292A successfully refreshed from Google Patents.
US4092292A
Expired / Lapsed
US
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Flame retardant compositions
Assignee: Millennium Petrochemicals Inc
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Filing: 1976-06-28
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Granted: 1978-05-30
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Expires: 1996-06-28
Abstract
Abstract The flame resistance of solid polymers are improved by treatment with a halogen containing amide having the formula <IMAGE> wherein R is lower alkoxy; lower alkoxy carbonyl; <IMAGE> +tr <IMAGE> X is chlorine or bromine; m is 0 or 1; n is 1-6; and y is 1-13.
Inventors
- 👤 Harry Braus
- 👤 Jay R. Woltermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:10
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; C; C07; C07C; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/16; C07C275/00; C07C275/04; C07C275/06; C07C275/08; C08; C08K; C08K5/00; C08K5/16; C08K5/20; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969; Y10T428/2971
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
48 words
A flame retarded composition comprising a solid polymer and a flame retardant amount of a halogen containing amide having the formula: ##STR14## wherein R is lower alkoxy; lower alkoxy carbonyl; ##STR15## X is chlorine or bromine; m is 0 or 1; n is 1-6; and y is 1-13.
Claim 2
Dependent Claim
48 words
A flame retarded composition comprising a solid polymer and a flame retardant amount of a halogen containing amide having the formula: ##STR14## wherein R is lower alkoxy; lower alkoxy carbonyl; ##STR15## X is chlorine or bromine; m is 0 or 1; n is 1-6; and y is 1-13.
Claim 3
Dependent Claim
24 words
The amide of claim 1 wherein the lower alkoxy radical contains 1-6 carbon atoms and the lower alkoxy carbonyl radical contains 2-7 carbon atoms.
Claim 4
Dependent Claim
11 words
The composition of claim 1, wherein said polymer is a polyolefin.
Claim 5
Dependent Claim
13 words
The composition of claim 3, wherein said halogen containing amide is N,N'-bis(β,γ-dibromopropyl) oxamide.
Claim 6
Dependent Claim
47 words
A flame retarded polymeric composition comprising a homogeneous admixture of polypropylene and a flame retardant amount up to about 20 percent by weight of the polymer of a halogen contaning amide selected from the group consisting of N,N'-bis(β,γ-dibromopropyl)ethyl oxamate, N,N,N',N'-tetrakis(β,γ-dibromopropyl) isophthalamide, tetra (β,γ-dibromopropyl) urea, and N,N'-bis(β,γ-dibromopropyl) oxamide.
Claim 7
Dependent Claim
47 words
A flame retarded polymeric composition comprising a homogeneous admixture of polypropylene and a flame retardant amount up to about 20 percent by weight of the polymer of a halogen contaning amide selected from the group consisting of N,N'-bis(β,γ-dibromopropyl)ethyl oxamate, N,N,N',N'-tetrakis(β,γ-dibromopropyl) isophthalamide, tetra (β,γ-dibromopropyl) urea, and N,N'-bis(β,γ-dibromopropyl) oxamide.
Claim 8
Dependent Claim
24 words
The composition of claim 5, wherein said composition also comprises from about 5 to about 20 percent by weight of polymer, of antimony oxide.
Claim 9
Dependent Claim
17 words
The composition of claim 6, comprising about 10 percent by weight of polymer of N,N'-bis(β,γ-dibromo propyl) oxamide.
Claim 10
Dependent Claim
10 words
A molded article composed of the composition of claim 7.
Claim 11
Dependent Claim
17 words
The composition of claim 1 wherein the amount of amide is, by weight, about 5 to 25%.
Claim 12
Dependent Claim
22 words
The composition of claim 1, wherein said composition also comprises about 5 to about 20% by weight of polymer, of antimony oxide.
Claim 13
Dependent Claim
28 words
The composition of claim 1 wherein the polymer is selected from the group consisting of polyamides, polyesters, polypropylene, polyethylene, polyurethane, acrylics, cellulose triacetate, copolymers thereof and blends thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |