US3983185A
Expired / Lapsed
US
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Halogen containing polyester resins having improved smoke-resistance
Assignee: Occidental Chemical Corp
•
Filing: 1974-10-10
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Granted: 1976-09-28
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Expires: 1994-10-10
Abstract
Abstract Fire retardant polymer compositions having improved smoke-retardance are prepared from:
Inventors
- 👤 Edwin Dorfman
- 👤 Raymond R. Hindersinn
- 👤 Willis T. Schwartz, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:15
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6828; C08K; C08K3/00; C08K3/01; C08K3/016
Claims Analysis
Total Claims: 49
Claim 1
Independent Claim
110 words
A fire retardant polyester polymer composition comprising 1. a mixture copolymerizable to an infusible resin consisting essentially of a. from about 50 to 80 wt. % of an α, β - ethylenically unsaturated halogen-containing polyester of a polycarboxylic compound and a polyhydric alcohol, the polyester containing halogen in a proportion of greater than about 4 weight percent; and b. from about 20 to about 50 weight percent of a mixture of unsaturated monomers comprising a vinylbenzene compound and an acrylic compound selected from the group consisting of acrylic acid, methacrylic acid and esters thereof, the weight ratio of vinylbenzene compound to acrylic compound being about 1:4 to 4:1; and 2.
Claim 2
Dependent Claim
110 words
A fire retardant polyester polymer composition comprising 1. a mixture copolymerizable to an infusible resin consisting essentially of a. from about 50 to 80 wt. % of an α, β - ethylenically unsaturated halogen-containing polyester of a polycarboxylic compound and a polyhydric alcohol, the polyester containing halogen in a proportion of greater than about 4 weight percent; and b. from about 20 to about 50 weight percent of a mixture of unsaturated monomers comprising a vinylbenzene compound and an acrylic compound selected from the group consisting of acrylic acid, methacrylic acid and esters thereof, the weight ratio of vinylbenzene compound to acrylic compound being about 1:4 to 4:1; and 2.
Claim 3
Dependent Claim
95 words
an effective fire retardant proportion of about 0.5 to about 10 weight percent of a smoke inhibiting additive consisting essentially of at least 0.5 weight percent of a compound of iron or a mixture of said iron compound with a compound of copper and/or a compound of antimony with the proviso that when said additive is a compound of iron that is soluble in said polyester, the compound of iron is free of iron-to-carbon bonds, said composition being substantially phosphorous-free and said proportions and weight percents being based on the weight of the copolymerizable mixture.
Claim 4
Dependent Claim
95 words
an effective fire retardant proportion of about 0.5 to about 10 weight percent of a smoke inhibiting additive consisting essentially of at least 0.5 weight percent of a compound of iron or a mixture of said iron compound with a compound of copper and/or a compound of antimony with the proviso that when said additive is a compound of iron that is soluble in said polyester, the compound of iron is free of iron-to-carbon bonds, said composition being substantially phosphorous-free and said proportions and weight percents being based on the weight of the copolymerizable mixture.
Claim 5
Dependent Claim
16 words
. The composition of claim 1 wherein said halogen is present as a halogen-containing polycarboxylic compound.
Claim 6
Dependent Claim
10 words
The composition of claim 2 wherein said halogen is chlorine.
Claim 7
Dependent Claim
15 words
The composition of claim 2 wherein said polycarboxylic compound is chlorendic acid or chlorendic anhydride.
Claim 8
Dependent Claim
21 words
The composition of claim 1, wherein said additive consists essentially of a compound of iron as the sole effective component thereof.
Claim 9
Dependent Claim
15 words
The composition of claim 5 wherein said halogen is present as a halogen-containing polycarboxylic acid.
Claim 10
Dependent Claim
15 words
The composition of claim 6 wherein said polycarboxylic compound is chlorendic acid or chlorendic anhydride.
Claim 11
Dependent Claim
11 words
The composition of claim 7 wherein said vinylbenzene compound is styrene.
Claim 12
Dependent Claim
15 words
The composition of claim 8 wherein said acrylic compound is an ester of acrylic acid.
Claim 13
Dependent Claim
14 words
The composition of claim 9 wherein said additive is an inorganic compound of iron.
Claim 14
Dependent Claim
12 words
The composition of claim 10 wherein said acrylic compound is methyl acrylate.
Claim 15
Dependent Claim
12 words
The composition of claim 10 wherein said acrylic compound is hydroxyethyl acrylate.
Claim 16
Dependent Claim
11 words
The composition of claim 12 wherein said additive is ferric oxide.
Claim 17
Dependent Claim
12 words
The composition of claim 12 wherein said additive is FeSnO 3 .
Claim 18
Dependent Claim
12 words
The composition of claim 12 wherein said additive is FeSiF 6 .
Claim 19
Dependent Claim
12 words
The composition of claim 12 wherein said additive is FeF 3 .
Claim 20
Dependent Claim
15 words
The composition of claim 8 wherein said acrylic compound is an ester of methacrylic acid.
Claim 21
Dependent Claim
14 words
The composition of claim 17 wherein said additive is an inorganic compound of iron.
Claim 22
Dependent Claim
30 words
The composition of claim 18 wherein said additive consists essentially of from about 1.0 to about 5.0 weight percent of iron oxide based on the weight of said copolymerizable mixture.
Claim 23
Dependent Claim
25 words
The composition of claim 1 wherein said additive consists essentially of a compound of iron and a compound of copper and/or a compound of antimony.
Claim 24
Dependent Claim
20 words
The composition of claim 20 wherein said additive consists essentially of a compound of iron and a compound of copper.
Claim 25
Dependent Claim
20 words
The composition of claim 20 wherein said additive consists essentially of a compound of iron and a compound of antimony.
Claim 26
Dependent Claim
15 words
The composition of claim 22 wherein said halogen is present as a halogen-containing polycarboxylic acid.
Claim 27
Dependent Claim
15 words
The composition of claim 23 wherein said polycarboxylic compound is chlorendic acid or chlorendic anhydride.
Claim 28
Dependent Claim
11 words
The composition of claim 24 wherein said vinylbenzene compound is styrene.
Claim 29
Dependent Claim
12 words
The composition of claim 25 wherein said acrylic compound is methacrylic acid.
Claim 30
Dependent Claim
58 words
The composition of claim 26 wherein said mixture of unsaturated monomers comprises about 25 to about 35 weight percent of styrene and methacrylic acid and said additive consists essentially of 1.0 to 5.0 weight percent of a mixture of iron and antimony oxides in a weight ratio of iron oxide:antimony oxide of from about 1:5 to about 5:1.
Claim 31
Dependent Claim
15 words
The composition of claim 25 wherein said acrylic compound is an ester of methacrylic acid.
Claim 32
Dependent Claim
23 words
The composition of claim 28 wherein said additive is a mixture of an inorganic compound of iron and an inorganic compound of antimony.
Claim 33
Dependent Claim
41 words
The composition of claim 29 wherein said additive consists essentially of about 1.0 to about 5.0 weight percent of a mixture or iron and antimony oxides in a weight ratio of iron oxide:antimony oxide of from about 1:5 to about 5:1.
Claim 34
Dependent Claim
12 words
The composition of claim 30 wherein said acrylic compound is hydroxyethyl methacrylate.
Claim 35
Dependent Claim
12 words
The composition of claim 30 wherein said acrylic compound is methyl methacrylate.
Claim 36
Dependent Claim
15 words
The composition of claim 25 wherein said acrylic compound is an ester of acrylic acid.
Claim 37
Dependent Claim
23 words
The composition of claim 33 wherein said additive is a mixture of an inorganic compound of iron and an inorganic compound of antimony.
Claim 38
Dependent Claim
42 words
The composition of claim 34 wherein said additive consists essentially of about 1.0 to about 5.0 weight percent of a mixture of iron and antimony oxides in a weight ratio of iron oxide: antimony oxide of from about 1:5 to about 5:1.
Claim 39
Dependent Claim
12 words
The composition of claim 35 wherein said acrylic compound is hydroxyethyl acrylate.
Claim 40
Dependent Claim
12 words
The composition of claim 35 wherein said acrylic compound is methyl acrylate.
Claim 41
Dependent Claim
12 words
The composition of claim 35 wherein said acrylic compound is butyl acrylate.
Claim 42
Dependent Claim
14 words
The composition of claim 34 wherein said inorganic compound of iron is ferric oxide.
Claim 43
Dependent Claim
15 words
The composition of claim 34 wherein said inorganic compound of iron is FeSnO 3 .
Claim 44
Dependent Claim
15 words
The composition of claim 34 wherein said inorganic compound of iron is FeF 3 .
Claim 45
Dependent Claim
24 words
The composition of claim 20 wherein said additive consists essentially of a compound of iron, a compound of copper and a compound of antimony.
Claim 46
Dependent Claim
29 words
The composition of claim 42 wherein said polycarboxylic compound is chlorendic acid or chlorendic anhydride and said mixture of unsaturated monomers comprises a mixture of styrene and methyl methacrylate.
Claim 47
Dependent Claim
48 words
The composition of claim 4 wherein said mixture of unsaturated monomers comprises a mixture of styrene and an acrylic compound selected from the group alkyl acrylates, alkyl methacrylates, hydroxyalkyl acrylates, hydroxyalkyl methacrylates, haloalkyl acrylates, and haloalkyl methacrylates wherein the alkyl group is from 1 to 8 carbon atoms.
Claim 48
Dependent Claim
11 words
The composition of claim 1 when polymerized to an infusible product.
Claim 49
Dependent Claim
12 words
The composition of claim 30 wherein said acrylic compound is ethylene dimethacrylate.
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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) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |