US4087408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bromine and phosphorus containing polyester
Assignee: Monsanto Co
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Filing: 1976-12-15
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Granted: 1978-05-02
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Expires: 1996-12-15
Abstract
Abstract Polyesters containing bromine and phosphorus are provided by the copolymerization of a ternary system based upon an alcoholic component and an acidic component. The third component is a bromo bisphenol alkyl or aryl phosphine oxide ##STR1## The hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 8, preferably 1 to 4 and R is an alkyl radical of 1-10 carbon atoms, or an aryl radical of 6-10 carbon atoms. The polyesters which are obtained have flame retardant properties.
Inventors
- 👤 Kurt Moedritzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:17
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/50; C07F9/53; C07F9/5325; C08; C08G; C08G63/00; C08G63/68; C08G63/692; C08G63/6924
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
140 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR11## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 8, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 2
Dependent Claim
140 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR11## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 8, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 3
Dependent Claim
140 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR12## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 4, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 4
Dependent Claim
140 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR12## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 4, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 5
Dependent Claim
123 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide as the diester of the formula ##STR13## in which the --OCOCH 3 groups are present in either the para or meta positions, and m plus n is from 1 to 8, the said alcohol and acid being employed in essentially stoicheometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 6
Dependent Claim
123 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide as the diester of the formula ##STR13## in which the --OCOCH 3 groups are present in either the para or meta positions, and m plus n is from 1 to 8, the said alcohol and acid being employed in essentially stoicheometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 7
Dependent Claim
127 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide as the bishydroxyethyl derivative of the formula ##STR14## in which the --OCH 2 CH 2 OH groups are present in either the para or meta positions, and m plus n is from 1 to 8, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 8
Dependent Claim
127 words
A ternary polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: a. an aliphatic alcohol of 2 to 20 carbon atoms, and b. an aromatic dicarboxylic acid of 6 to 20 carbon atoms, and c. a brominated bisphenol alkyl or aryl phosphine oxide as the bishydroxyethyl derivative of the formula ##STR14## in which the --OCH 2 CH 2 OH groups are present in either the para or meta positions, and m plus n is from 1 to 8, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 9
Dependent Claim
64 words
A polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: terephthalic acid in approximately stoichiometric relationship with ethylene glycol, with the proviso that a part of the glycol is substituted by an equivalent amount of tetrabromo bisphenol methylphosphine oxide to provide from 1 to 20 wt. % of the said tetrabromo bisphenol methylphosphine oxide in the ternary polyester.
Claim 10
Dependent Claim
64 words
A polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: terephthalic acid in approximately stoichiometric relationship with ethylene glycol, with the proviso that a part of the glycol is substituted by an equivalent amount of tetrabromo bisphenol methylphosphine oxide to provide from 1 to 20 wt. % of the said tetrabromo bisphenol methylphosphine oxide in the ternary polyester.
Claim 11
Dependent Claim
65 words
A polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: terephthalic acid in approximately stoichiometric relationship with ethylene glycol, with the proviso that a part of the glycol is substituted by an equivalent amount of tetrabromo bisphenol phenyl phosphine oxide to provide from 1 to 20 wt. % of the said tetrabromo bisphenol phenyl phosphine oxide in the polyester.
Claim 12
Dependent Claim
65 words
A polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: terephthalic acid in approximately stoichiometric relationship with ethylene glycol, with the proviso that a part of the glycol is substituted by an equivalent amount of tetrabromo bisphenol phenyl phosphine oxide to provide from 1 to 20 wt. % of the said tetrabromo bisphenol phenyl phosphine oxide in the polyester.
Claim 13
Dependent Claim
153 words
A polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: terephthalic acid in approximately stoichiometric relationship with ethylene glycol, with the proviso that a part of the glycol is substituted by an equivalent amount of a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR15## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 4, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 14
Dependent Claim
153 words
A polyester obtained by the copolymerization at a temperature of 200° C to 300° C of: terephthalic acid in approximately stoichiometric relationship with ethylene glycol, with the proviso that a part of the glycol is substituted by an equivalent amount of a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR15## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 4, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 15
Dependent Claim
142 words
Process for the preparation of ternary polyesters which comprises the copolymerizing of terephthalic acid together with ethylene glycol, at a temperature of 200° C to 300° C, with the proviso that a part of the glycol is substituted by an equivalent amount of a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR16## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 4, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
Claim 16
Dependent Claim
142 words
Process for the preparation of ternary polyesters which comprises the copolymerizing of terephthalic acid together with ethylene glycol, at a temperature of 200° C to 300° C, with the proviso that a part of the glycol is substituted by an equivalent amount of a brominated bisphenol alkyl or aryl phosphine oxide of the formula ##STR16## in which the hydroxyl groups are present in either the para or meta positions, m plus n is from 1 to 4, and R is an alkyl radical of 1 to 10 carbon atoms, or an aryl radical of 6 to 10 carbon atoms, the said alcohol and acid being employed in essentially stoichiometric relationship, with the said brominated compound being employed as a partial equivalent of the aforesaid alcohol, to provide from 1 to 20 wt. % of the said brominated compound in the ternary polyester.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |