US4639486A
Expired / Lapsed
US
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Flame retardant elastomeric compositions
Assignee: General Electric Co
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Filing: 1985-10-08
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Granted: 1987-01-27
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Expires: 2005-10-08
Abstract
Abstract Novel flame retardant elastomeric materials are prepared by admixing a polyetherimide ester and a halogenated flame retarding material. Optionally these compositions may further comprise a modifier resin selected from condensation polymers and addition polymers, flame retardant synergists and drip suppressant.
Inventors
- 👤 Nan-I Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:32
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; C08K; C08K5/00; C08K5/0008; C08K5/0066
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
107 words
A flame retardant thermoplastic composition comprising (A)(i) one or more thermoplastic elastomeric polymers chacterized as having ether, ester and imide linkages and wherein the ether linkages are present as a high molecular weight, i.e. MW of from about 400 to about 12000, polyoxyalkylene or copolyoxyalkylene units derived from long chain ether glycols or long chain ether diamines, alone or in combination with (ii) one or more modifying resins, (B) a flame retarding amount of a halogenated flame retarding material, (C) optionally, an effective amount of an organic or inorganic flame retardant synergist compound, and (D) optionally, an effective amount of an organic or inorganic drip suppressant material.
Claim 2
Dependent Claim
107 words
A flame retardant thermoplastic composition comprising (A)(i) one or more thermoplastic elastomeric polymers chacterized as having ether, ester and imide linkages and wherein the ether linkages are present as a high molecular weight, i.e. MW of from about 400 to about 12000, polyoxyalkylene or copolyoxyalkylene units derived from long chain ether glycols or long chain ether diamines, alone or in combination with (ii) one or more modifying resins, (B) a flame retarding amount of a halogenated flame retarding material, (C) optionally, an effective amount of an organic or inorganic flame retardant synergist compound, and (D) optionally, an effective amount of an organic or inorganic drip suppressant material.
Claim 3
Dependent Claim
45 words
The composition of claim 1 wherein the thermoplastic elastomeric polymer A(i) is a polyetherimide ester derived from (i) one or more diols (ii) one or more dicarboxylic acids or the ester derivative thereof and (iii) one or more poly(oxyalkylene) diimide diacids or the reactants therefor.
Claim 4
Dependent Claim
36 words
The composition of claim 2 wherein the diols are selected from the group consisting of C 2 to C 8 aliphatic and cycloaliphatic diols and at least 80 mole percent of the diols are the same.
Claim 5
Dependent Claim
11 words
The composition of claim 2 wherein the diol is 1,4 butanediol.
Claim 6
Dependent Claim
42 words
The composition of claim 2 wherein at least 80 mole percent of the dicarboxylic acids are the same and are selected from the group consisting of C 4 to C 16 aliphatic, cycloaliphatic or aromatic dicarboxylic acids and the ester derivatives thereof.
Claim 7
Dependent Claim
25 words
The composition of claim 5 wherein the predominant dicarboxylic acid is a C 8 to C 16 aromatic dicarboxylic acid or the ester derivative thereof.
Claim 8
Dependent Claim
12 words
The composition of claim 2 wherein the dicarboxylic acid is dimethyl terephthalate.
Claim 9
Dependent Claim
101 words
The composition of claim 2 wherein the polyetherimide ester is prepared from a preformed poly(oxyalkylene) diimide diacid characterized as having the following formula: ##STR9## or the reactants therefor comprising monomers of the following formulas: H.sub.2 N--G--NH.sub.2 and ##STR10## wherein each R is independently a C 2 to C 20 aliphatic, cycloaliphatic or aromatic trivalent organic radical; each R' is independently hydrogen or a C 1 to C 6 monovalent organic radical, and G is the radical remaining after removal of the terminal amino groups of a long chain ether diamine having a molecular weight of from about 400 to about 12,000.
Claim 10
Dependent Claim
44 words
The composition of claim 8 wherein R is a C 6 to C 20 aromatic trivalent organic radical, R' is hydrogen or methyl and G is derived from a long chain ether diamine having a molecular weight of from about 900 to about 4000.
Claim 11
Dependent Claim
29 words
The composition of claim 8 wherein the long chain ether diamine is selected from the group consisting of poly(ethylene ether)diamine, poly(propylene ether)diamine, poly(tetramethylene ether) diamine and copoly(ethylene ether-propylene ether)diamine.
Claim 12
Dependent Claim
14 words
The composition of claim 8 wherein the long chain ether diamine is poly(propylene ether)diamine.
Claim 13
Dependent Claim
18 words
The composition of claim 8 wherein R is a C 6 aromatic trivalent radical derived from trimellitic anhydride.
Claim 14
Dependent Claim
40 words
The composition of claim 8 wherein the polyetherimide ester is derived from a preformed poly(oxyalkylene) diimide diacid which is the reaction product of trimellitic anhydride and poly(propylene ether) diamine having a molecular weight of from about 900 to about 4000.
Claim 15
Dependent Claim
17 words
The composition of claim 1 wherein the halogenated flame retardant (B) is a brominated flame retarding material.
Claim 16
Dependent Claim
51 words
The composition of claim 1 wherein the halogenated flame retardant material (B) is selected from the group consisting of halogenated (a) aromatic and diaromatic compounds (b) diphenyl ethers (c) phthalimides and bisphthalimides (d) polystyrenes (e) polycarbonates or copolycarbonate (f) polyacrylates and poly(aryl acrylates) (g) polyphenylene oxides and (h) poly(bisphenol-diglycidyl ether) resins.
Claim 17
Dependent Claim
24 words
The composition of claim 15 wherein the halogenated flame retardant material (B) is poly(tetrabromobisphenol A diglycidyl ether) having about 50% aromatically bound bromine content.
Claim 18
Dependent Claim
31 words
The composition of claim 1 wherein the halogenated flame retardant is present in an amount of from about 0.5 to about 50 parts by weight per 100 parts thermoplastic material (A).
Claim 19
Dependent Claim
31 words
The composition of claim 1 wherein the halogenated flame retardant is present in an amount of from about 5 to about 40 parts by weight per 100 parts thermoplastic material (A).
Claim 20
Dependent Claim
31 words
The composition of claim 1 wherein the halogenated flame retardant is present in an amount of from about 15 to about 30 parts by weight per 100 parts thermoplastic material (A).
Claim 21
Dependent Claim
21 words
The composition of claim 1 wherein the flame retardant synergist, the drip suppressant or a mixture of the two are present.
Claim 22
Dependent Claim
76 words
The composition of claim 20 wherein the flame retardant synergist is an antimony compound and is present in an amount of from about 1 to about 15 parts by weight per 100 parts by weight thermoplastic material (A) and the drip suppressant is selected from the group of polytetrafluoroethylene and fumed silica and is present in an amount of from about 0.01 to about 5 parts by weight per 100 parts by weight thermoplastic material (A).
Claim 23
Dependent Claim
30 words
The composition of claim 21 wherein the flame retardant synergist is selected from the group consisting of antimony oxide, antimony trioxide and sodium antimonate and the drip suppressant is polytetrafluoroethylene.
Claim 24
Dependent Claim
13 words
The composition of claim 22 wherein the flame retardant synergist is antimony oxide.
Claim 25
Dependent Claim
47 words
The composition of claim 1 containing a modifier resin selected from the group consisting of condensation polymers, addition polymers and mixtures of the two in an amount of up to about 70% by weight based on the total weight of thermoplastic elastomer A(i) and modifier resin A(ii).
Claim 26
Dependent Claim
36 words
The composition of claim 24 wherein the modifier resin is present in an amount of from about 5 to about 50% by weight based on the total weight of thermoplastic elastomer A(i) and modifier resin A(ii).
Claim 27
Dependent Claim
69 words
The composition of claim 24 wherein the modifier resin A(ii) is a condensation polymer represented by the formula ##STR11## wherein R II is the divalent radical remaining after the removal of the carboxyl groups of an aromatic dicarboxylic acid, n is a whole number of from 2-8 and each of x and y represent 0 to 100 weight percent of the polyester provided the total of (x+y) equals 100.
Claim 28
Dependent Claim
11 words
The composition of claim 26 wherein the polyester is poly(butylene terephthalate).
Claim 29
Dependent Claim
20 words
The composition of claim 24 wherein the addition polymer is a butadiene based or n-butylacrylate based rubbery core, core-shell copolymer.
Claim 30
Dependent Claim
29 words
The composition of claim 1 containing as modifier resin a combination of poly(butylene terephthalate) and a butadiene based rubbery core core-shell copolymer and as an additional ingredient clay filler.
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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) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |