US4147690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke and fire resistant compositions
Assignee: Burns and Russell Co
•
Filing: 1977-12-13
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Granted: 1979-04-03
•
Expires: 1997-12-13
Abstract
Abstract A combination of (1) magnesium hydroxide and (2) alumina trihydrate has been found to have synergestic properties in reducing smoke and/or flame spread in many polymer compositions when compared to the use of either alone. In some cases even better results are obtained by including antimony trioxide or antimony trioxide together with finely divided silica.
Inventors
- 👤 Russell P. Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:51
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 58
Claim 1
Independent Claim
245 words
A composition comprising (I) a mixture comprising (a) magnesium hydroxide and (b) alumina trihydrate and (II) a polymer which is (A) a polyester, (B) an epoxy resin, (C) a vinyl chloride polymer or (D) a polyurethane, the mixture of magnesium hyroxide and alumina trihydrate being present in an amount sufficient to impart improved flame or smoke resistance, wherein (1) when the polymer is a non-halogenated polyester there is employed 25 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 95:5; (2) when the polymer is a halogenated polyester there is employed 5 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1; (3) when the polymer is an epoxy resin there is employed 5 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 9:95 to 2:1 at 5 to 90 parts per 100 parts of polymer and 5:95 to 1:1 at above 90 up to 100 parts per 100 parts of polymer (4) when the polymer is a vinyl chloride polymer there is employed 4 to 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being 5:95 to 95:5; and (5 ) when the polymer is a polyurethane there is employed 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being 1:1.
Claim 2
Dependent Claim
245 words
A composition comprising (I) a mixture comprising (a) magnesium hydroxide and (b) alumina trihydrate and (II) a polymer which is (A) a polyester, (B) an epoxy resin, (C) a vinyl chloride polymer or (D) a polyurethane, the mixture of magnesium hyroxide and alumina trihydrate being present in an amount sufficient to impart improved flame or smoke resistance, wherein (1) when the polymer is a non-halogenated polyester there is employed 25 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 95:5; (2) when the polymer is a halogenated polyester there is employed 5 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1; (3) when the polymer is an epoxy resin there is employed 5 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 9:95 to 2:1 at 5 to 90 parts per 100 parts of polymer and 5:95 to 1:1 at above 90 up to 100 parts per 100 parts of polymer (4) when the polymer is a vinyl chloride polymer there is employed 4 to 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being 5:95 to 95:5; and (5 ) when the polymer is a polyurethane there is employed 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being 1:1.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein the polymer is a non-halogenated polyester.
Claim 4
Dependent Claim
41 words
A composition according to claim 2 wherein the mixture (I) consists of mangesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved flame resistance, there being employed 25 parts of (I) per 100 parts of polymer.
Claim 5
Dependent Claim
52 words
A composition according to claim 2 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 25 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 1:1.
Claim 6
Dependent Claim
51 words
A composition according to claim 2 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate is present in an amount sufficient to impart improved smoke resistance, there being employed 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 1:1.
Claim 7
Dependent Claim
13 words
A composition according to claim 1 wherein the polymer is a halogenated polyester.
Claim 8
Dependent Claim
69 words
A composition according to claim 6 wherein the mixture (I) consists of (a) magnesium hydroxide, (b), alumina trihydrate and (c) a mixture of antimony trioxide and silica in the ratio of 1:3, the ratio of (a) to (b) to (c) being 6:3:1 and (I) being present in an amount sufficient to impart improved smoke resistance, there being employed 25 to 50 parts of (I) per 100 parts of polymer.
Claim 9
Dependent Claim
54 words
A composition according to claim 6 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 5 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 10
Dependent Claim
32 words
A composition according to claim 8 wherein there is employed 5 to 25 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 11
Dependent Claim
30 words
A composition according to claim 9 wherein there is employed 5 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 1:2.
Claim 12
Dependent Claim
27 words
A composition according to claim 9 wherein there is employed 5 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being 2:1.
Claim 13
Dependent Claim
30 words
A composition according to claim 9 wherein there is employed 10 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 14
Dependent Claim
18 words
A composition according to claim 12 wherein the ratio of (a) to (b) is from 1:2 to 2:1.
Claim 15
Dependent Claim
30 words
A composition according to claim 9 wherein there is employed 25 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 16
Dependent Claim
18 words
A composition according to claim 14 wherein the ratio of (a) to (b) is from 1:2 to 2:1.
Claim 17
Dependent Claim
15 words
A composition according to claim 15 wherein the ratio of (a) to (b) is 1:2.
Claim 18
Dependent Claim
32 words
A composition according to claim 8 wherein there is employed 25 to 100 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 19
Dependent Claim
32 words
A composition according to claim 17 wherein there is employed 50 to 100 parts of (I) per 100 parts ogf polymer, the ratio of (a) to (b) being from 1:2 to 2:1.
Claim 20
Dependent Claim
30 words
A composition according to claim 18 wherein there is employed 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 1:1 to 1:2.
Claim 21
Dependent Claim
15 words
A composition according to claim 19 wherein the ratio of (a) to (b) is 1:1.
Claim 22
Dependent Claim
19 words
A composition according to claim 18 wherein there is employed 100 parts of (I) per 100 parts of polymer.
Claim 23
Dependent Claim
15 words
A composition according to claim 21 wherein the ratio of (a) to (b) is 1:2.
Claim 24
Dependent Claim
15 words
A composition according to claim 21 wherein the ratio of (a) to (b) is 2:1.
Claim 25
Dependent Claim
54 words
A composition according to claim 1 wherein the polymer is a polyurethane and the mixture consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being 1:1.
Claim 26
Dependent Claim
14 words
A composition according to claim 1 wherein the polymer is a vinyl chloride polymer.
Claim 27
Dependent Claim
54 words
A composition according to claim 25 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 4 to 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 28
Dependent Claim
21 words
A composition according to claim 26 wherein there is employed 4 to 20 parts of (I) per 100 parts of polymer.
Claim 29
Dependent Claim
18 words
A composition according to claim 27 wherein the ratio of (a) to (b) is from 1:2 to 2:1.
Claim 30
Dependent Claim
21 words
A composition according to claim 28 wherein there is employed 5.8 to 11.5 parts of (I) per 100 parts of resin.
Claim 31
Dependent Claim
19 words
A composition according to claim 29 wherein there is employed 11.5 parts of (I) per 100 parts of resin.
Claim 32
Dependent Claim
15 words
A composition according to claim 30 wherein the ratio of (a) to (b) is 2:1.
Claim 33
Dependent Claim
15 words
A composition according to claim 27 wherein the ratio of (a) to (b) is 5:95.
Claim 34
Dependent Claim
54 words
A composition according to claim 25 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 25 to 50 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 95:5 to 1:2.
Claim 35
Dependent Claim
18 words
A composition according to claim 33 wherein the ratio of (a) to (b0) is from 2:1 to 1:2.
Claim 36
Dependent Claim
26 words
A composition according to claim 33 wherein there is employed 25 parts of (I) and the ratio of (a) to (b) is from 95:5 to 2:1.
Claim 37
Dependent Claim
15 words
A composition according to claim 35 wherein the ratio of (a) to (b) is 2:1.
Claim 38
Dependent Claim
26 words
A composition according to claim 33 wherein there is employed 50 parts of (I) and the ratio of (a) to (b) is from 2:1 to 1:2.
Claim 39
Dependent Claim
15 words
A composition according to claim 37 wherein the ratio of (a) to (b) is 2:1.
Claim 40
Dependent Claim
15 words
A composition according to claim 38 wherein the ratio of (a) to (b) is 1:2.
Claim 41
Dependent Claim
54 words
A composition according to claim 25 whein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved flame resistance, there being employed 5.8 to 11.5 parts of (I) per 100 parts of polymer and the ratio of (a) to (b) being 5:95 to 95:5.
Claim 42
Dependent Claim
19 words
A composition according to claim 40 wherein there is employed 11.5 parts of (I) per 100 parts of polymer.
Claim 43
Dependent Claim
15 words
A composition according to claim 41 wherein the ratio of (a) to (b) is 2:1.
Claim 44
Dependent Claim
13 words
A composition according to claim 1 wherein the polymer is an epoxy resin.
Claim 45
Dependent Claim
54 words
A composition accordng to claim 43 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 30 to 90 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 2:1.
Claim 46
Dependent Claim
18 words
A composition according to claim 44 wherein the ratio of (a) to (b) is from 5:95 to 1:2.
Claim 47
Dependent Claim
18 words
A composition according to claim 44 wherein the ratio of (a) to (b) is from 5:95 to 1:1.
Claim 48
Dependent Claim
21 words
A composition according to claim 44 wherein there is employed 75 to 90 parts of (I) per 100 parts of polymer.
Claim 49
Dependent Claim
28 words
A composition according to claim 47 wherein the ratio of (a) to (b) is 5:95 and there is employed 90 parts of (I) per 100 parts of polymer.
Claim 50
Dependent Claim
28 words
A composition according to claim 47 wherein there is employed 90 parts of (I) per 100 parts of polymer and the ratio of (a) to (b) is 1:1.
Claim 51
Dependent Claim
28 words
A composition according to claim 47 wherein there is employed 90 parts of (I) per 100 parts of polymer and the ratio of (a) to (b) is 1:1.
Claim 52
Dependent Claim
28 words
A composition according to claim 47 wherein there is employed 75 parts of (I) per 100 parts of polymer and the ratio of (a) to (b) is 5:95.
Claim 53
Dependent Claim
28 words
A composition according to claim 47 wherein there is employed 75 parts of (I) per 100 parts of polymer and the ratio of (a) to (b) is 1:1.
Claim 54
Dependent Claim
28 words
A composition according to claim 47 wherein there is employed 75 parts of (I) per 100 parts of polymer and the ratio of (a) to (b) is 2:1.
Claim 55
Dependent Claim
52 words
A composition according to claim 43 wherein the mixture (I) consists of magnesium hydroxide and alumina trihydrate and is present in an amount sufficient to impart improved smoke resistance, there being employed 10 parts of (I) per 100 parts of polymer, the ratio of (a) to (b) being from 5:95 to 1:1.
Claim 56
Dependent Claim
15 words
A composition according to claim 54 wherein the ratio of (a) to (b) is 5:95.
Claim 57
Dependent Claim
15 words
A composition according to claim 54 wherein the ratio of (a) to (b) is 1:1.
Claim 58
Dependent Claim
15 words
A composition according to claim 54 wherein the ratio of (a) to (b) is 1:2.
References Cited (Backward Citations)
GB1080468A
Cited
US3816367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |