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US4704418A
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US
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Fire-resistant composition
Assignee: Monsanto Co
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Filing: 1985-12-23
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Granted: 1987-11-03
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Expires: 2005-12-23
Abstract
Abstract A fire-resistant thermoplastic composition comprising polyvinyl butyral resin and a compatible mixture in an amount sufficient to provide fire-resistant properties to such composition which includes (a) a plasticizer blend of a char-forming component, such as an organic phosphate, and an oxygen sequestering agent, such as an organic phosphite, wherein the char-forming component is the major constituent; (b) a nucleating agent such as fumed silica for dispersing the fire decomposition products of the composition; and (c) a heat reactive bonding resin.
Inventors
- 👤 I. Luis Gomez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:45
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/653; C04B35/657; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K3/00; C08K3/34; C08K3/36; C08K5/524; C08L; C08L29/00; C08L29/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
68 words
A fire-resistant thermoplastic composition comprising: (a) polyvinyl butyral resin; and (b) a compatible mixture in an amount sufficient to provide fire resistant properties to said composition which includes: (i) a plasticizer blend comprising a char-forming component and an oxygen sequestering agent wherein the char-forming component is the major constituent; (ii) a nucleating agent for dispersing fire decomposition products of the composition; and (iii) a heat reactive bonding resin.
Claim 2
Dependent Claim
68 words
A fire-resistant thermoplastic composition comprising: (a) polyvinyl butyral resin; and (b) a compatible mixture in an amount sufficient to provide fire resistant properties to said composition which includes: (i) a plasticizer blend comprising a char-forming component and an oxygen sequestering agent wherein the char-forming component is the major constituent; (ii) a nucleating agent for dispersing fire decomposition products of the composition; and (iii) a heat reactive bonding resin.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein the char-forming component is an organic phosphate.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein the oxygen sequestering agent is an organic phosphite.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein the nucleating agent is fumed silica.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein the bonding resin is a silicone resin.
Claim 7
Dependent Claim
22 words
The composition of claim 1 wherein the ratio of char-forming component to sequestering agent in the blend is between 7:1 and 13:1.
Claim 8
Dependent Claim
36 words
The composition of any of claim 1, 2, 3, 4, 5 or 6 wherein the amount of the mixture is between about 38 to about 46 parts by weight per 100 parts by weight of resin.
Claim 9
Dependent Claim
36 words
The composition of claim 7 wherein said mixture includes: (i) 80 to 90 weight % plasticizer blend; (ii) 2 to 8 weight % fumed silica; and (iii) 2 to 2.6 weight % heat reactive bonding resin.
Claim 10
Dependent Claim
67 words
A fire resistant thermoplastic composition comprising: (a) 100 parts by weight of polyvinyl butyral resin; and (b) about 38 to about 46 parts by weight of a compatible mixture providing fire resistant properties to said resin which includes: (i) a plasticizer blend of organic phosphate and organic phosphite constituents wherein the organic phosphate is the major constituent; (ii) fumed silica; and (iii) a heat reactive bonding resin.
Claim 11
Dependent Claim
67 words
A fire resistant thermoplastic composition comprising: (a) 100 parts by weight of polyvinyl butyral resin; and (b) about 38 to about 46 parts by weight of a compatible mixture providing fire resistant properties to said resin which includes: (i) a plasticizer blend of organic phosphate and organic phosphite constituents wherein the organic phosphate is the major constituent; (ii) fumed silica; and (iii) a heat reactive bonding resin.
Claim 12
Dependent Claim
24 words
The composition of claim 9 wherein the organic phosphate is selected from the group consisting of tri-butoxyethyl phosphate, isodecyl diphenyl phosphate and mixtures thereof.
Claim 13
Dependent Claim
13 words
The composition of claim 9 wherein the bonding resin is a silicone resin.
Claim 14
Dependent Claim
26 words
The composition of claim 9 wherein the organic phosphite is selected from the group consisting of tri-isopropyl phosphite, tri-decyl phosphite, didecyl (aryl) phosphite and mixtures thereof.
Claim 15
Dependent Claim
42 words
The composition of any of claim 9, 10 11 or 12 wherein said mixture includes: (i) 80 to 90 weight % plasticizer blend; (ii) 2 to 8 weight % fumed silica; and (iii) 2 to 2.6 weight % heat reactive bonding resin.
Claim 16
Dependent Claim
19 words
The composition of claim 13 wherein the ratio of organic phosphate to organic phosphite is between 7:1 and 13:1.
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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) | 1990-11-02 | 1991-05-04 | 1991-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-02 | 1995-05-04 | 1995-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-02 | 1999-05-04 | 1999-11-03 | $7700.00 | Window Closed / Lapsed |