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US4885328A
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Flame retardant compositions
Assignee: Shell USA Inc
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Filing: 1989-03-31
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Granted: 1989-12-05
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Expires: 2009-03-31
Abstract
Abstract Flame retardant compositions comprise linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor quantity, relative to the polymer of an alkaline earth metal hydroxide.
Inventors
- 👤 Richard L. Danforth
- 👤 Darlene G. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:15
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
31 words
A flame retardant polymer composition comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a flame retarding quantity of an alkaline earth metal hydroxide.
Claim 2
Dependent Claim
31 words
A flame retardant polymer composition comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a flame retarding quantity of an alkaline earth metal hydroxide.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein said alkaline earth metal is magnesium hydroxide.
Claim 4
Dependent Claim
50 words
The composition of claim 1 wherein said polymer is a linear alternating polymer of the general formula ##STR1## wherein B is the moiety of an ethylenically unsaturated α-olefin of at least 3 carbon atoms polymerized through the ethylenic unsaturation and the ratio of y:x is no more than about 0.5.
Claim 5
Dependent Claim
12 words
The composition of claim 3 wherein said ethylenically unsaturated α-olefin is propylene.
Claim 6
Dependent Claim
25 words
The composition of claim 2 wherein said quantity of magnesium hydroxide is about 2 to about 50 percent by weight, based on the total composition.
Claim 7
Dependent Claim
25 words
The composition of claim 5 wherein said quantity of magnesium hydroxide is about 15 to about 40 percent by weight, based on the total composition.
Claim 8
Dependent Claim
25 words
The composition of claim 6 wherein said quantity of magnesium hydroxide is about 20 to about 30 percent by weight, based on the total composition.
Claim 9
Dependent Claim
16 words
The composition of claim 2 wherein said magnesium hydroxide is surface treated with a fatty acid.
Claim 10
Dependent Claim
14 words
The composition of claim 8 wherein said fatty acid is an aliphatic monocarboxylic acid.
Claim 11
Dependent Claim
23 words
The composition of claim 8 wherein said fatty acid has the formula C n H 2n+1 COOH where n is 6 to 24.
Claim 12
Dependent Claim
12 words
The composition of claim 8 wherein said fatty acid is stearic acid.
Claim 13
Dependent Claim
22 words
The composition of claim 3 wherein the α-olefin is propylene and the ratio of y:x is from about 0.01 to about 0.2.
Claim 14
Dependent Claim
9 words
The composition of claim 3 wherein y is zero.
Claim 15
Dependent Claim
14 words
As an article of manufacture, a fabricated article comprising the composition of claim 1.
Claim 16
Dependent Claim
80 words
A flame retardant composition comprising: (a) about 50 to about 85 percent by weight of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon; (b) about 5 to about 30 percent by weight of an alkaline earth metal hydroxide; and (c) about 5 to about 20 percent by weight of an alkaline earth metal carbonate, wherein the weight ratio of said alkaline earth metal hydroxide to said alkaline earth metal carbonate is 1:1 or greater.
Claim 17
Dependent Claim
80 words
A flame retardant composition comprising: (a) about 50 to about 85 percent by weight of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon; (b) about 5 to about 30 percent by weight of an alkaline earth metal hydroxide; and (c) about 5 to about 20 percent by weight of an alkaline earth metal carbonate, wherein the weight ratio of said alkaline earth metal hydroxide to said alkaline earth metal carbonate is 1:1 or greater.
Claim 18
Dependent Claim
13 words
The composition of claim 15 wherein said alkaline earth metal is magnesium hydroxide.
Claim 19
Dependent Claim
50 words
The composition of claim 15 wherein said polymer is a linear alternating polymer of the general formula ##STR2## wherein B is the moiety of an ethylenically unsaturated α-olefin of at least 3 carbon atoms polymerized through the ethylenic unsaturation and the ratio of y:x is no more than about 0.5.
Claim 20
Dependent Claim
13 words
The composition of claim 16 wherein said alkaline earth metal is calcium carbonate.
Claim 21
Dependent Claim
53 words
The composition of claim 18 wherein the amount of said linear alternating polymer is about 60 to about 85 percent by weight, the amount of said magnesium hydroxide is about 20 to about 30 percent of weight and the amount of said calcium carbonate is about 5 to about 10 percent by weight.
Claim 22
Dependent Claim
16 words
The composition of claim 18 wherein said magnesium hydroxide is surface treated with a fatty acid.
Claim 23
Dependent Claim
14 words
The composition of claim 20 wherein said fatty acid is an aliphatic monocarboxylic acid.
Claim 24
Dependent Claim
12 words
The composition of claim 21 wherein said fatty acid is stearic acid.
Claim 25
Dependent Claim
25 words
The composition of claim 1 wherein said alkaline earth metal hydroxide has a decomposition temperature higher than the melting point of said linear alternating polymer.
Claim 26
Dependent Claim
18 words
The composition of claim 23 wherein said alkaline earth metal hydroxide has a decomposition temperature above 600° F.
Claim 27
Dependent Claim
12 words
The composition of claim 18 wherein said calcium carbonate is surface treated.
Claim 28
Dependent Claim
15 words
The composition of claim 25 wherein said calcium carbonate is surface treated with stearic acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |