Patent US5021295A successfully refreshed from Google Patents.
US5021295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retardant halogenated polyester resin composition and electric wire coated with the same
Assignee: Polyplastics Co Ltd
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Filing: 1989-03-09
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Granted: 1991-06-04
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Expires: 2009-03-09
Abstract
Abstract A flame-retarding polyester composition is useful for coating an electric wire, which comprises a melt-mixture of, (A) a copolyester having a halogen content of 0.5 to 30 wt. % and (B) a branched copolymer prepared by the condensation polymerization of monomers mainly comprising (a)' a component mainly comprising an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b)' a component mainly comprising an aliphatic glycol or an ester-forming derivative thereof and (d) a branching compound, which contains 0.001 to 0.5 molar % (based on the total amount of the carbonyl groups of the copolyester) of said branching compound (d).
Inventors
- 👤 Toshio Nakane
- 👤 Michiro Naka
- 👤 Hiroaki Konuma
- 👤 Kenji Hijikata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:16
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/422; C; C08; C08L; C08L67/00; C08L67/02; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
172 words
A flame-retardant halogenated polyester resin composition prepared by melt-mixing: copolyester (A) prepared by the condensation polymerization of monomers mainly comprising (a) a component mainly comprising an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b) a component mainly comprising an aliphatic glycol or an ester-forming derivative thereof and (c) an ester-forming halogenated compound, which has a halogen content of 0.5 to 30% by weight, with copolyester (B) comprising a branched polymer prepared by the condensation polymerization of monomers mainly comprising (a)' a component mainly comprising an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b)' a component mainly comprising an aliphatic glycol or an ester-forming derivative thereof and (d) a branching compound having at least three functional groups selected from a carboxyl group, a hydroxyl group, an ester-forming group derived therefrom or mixtures thereof, which contains 0.001 to 0.5 molar % (B), of said branching compound (d), in such a proportion that the content of copolyester (B) is 0.1 to 50% by weight based on the total of copolyesters (A) and (B).
Claim 2
Dependent Claim
172 words
A flame-retardant halogenated polyester resin composition prepared by melt-mixing: copolyester (A) prepared by the condensation polymerization of monomers mainly comprising (a) a component mainly comprising an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b) a component mainly comprising an aliphatic glycol or an ester-forming derivative thereof and (c) an ester-forming halogenated compound, which has a halogen content of 0.5 to 30% by weight, with copolyester (B) comprising a branched polymer prepared by the condensation polymerization of monomers mainly comprising (a)' a component mainly comprising an aromatic dicarboxylic acid or an ester-forming derivative thereof, (b)' a component mainly comprising an aliphatic glycol or an ester-forming derivative thereof and (d) a branching compound having at least three functional groups selected from a carboxyl group, a hydroxyl group, an ester-forming group derived therefrom or mixtures thereof, which contains 0.001 to 0.5 molar % (B), of said branching compound (d), in such a proportion that the content of copolyester (B) is 0.1 to 50% by weight based on the total of copolyesters (A) and (B).
Claim 3
Dependent Claim
35 words
The polyester resin composition according to claim 1, wherein said aliphatic glycols (b) and (b)' are each C 2-8 low-molecular weight glycols and/or polyalkylene oxide glycols having a molecular weight of from 200 to 4000.
Claim 4
Dependent Claim
33 words
The polyester resin composition according to claim 2, wherein said C 2-8 low-molecular weight glycol is at least one member selected from the group consisting of ethylene glycol, 1,4-butylene glycol and 1,4-butene glycol.
Claim 5
Dependent Claim
38 words
The polyester resin composition according to claim 1, 2 or 3, wherein said ester-forming halogenated compound (c) is selected from formula ##STR5## wherein ##STR6## X: halogen l, m: 1 to 4 n: an integer of 1 or above.
Claim 6
Dependent Claim
16 words
The polyester resin composition according to claim 1, 2 or 3 wherein said halogen is bromine.
Claim 7
Dependent Claim
21 words
The polyester resin composition according to claim 1, 2 or 3, wherein copolyester (B) further comprises an ester-forming halogenated compound (c)'.
Claim 8
Dependent Claim
35 words
A polyester resin composition prepared by adding 0,01 to 3% by weight, based on the total amount of the composition, of a stabilizer to the polyester resin composition according to claim 1, 2 or 3.
Claim 9
Dependent Claim
20 words
An electric wire coated with a coating material comprising the polyester resin composition according to claim 1, 2 or 3.
Claim 10
Dependent Claim
16 words
The electric wire according to claim 8, wherein said electric wire is a low-voltage electric wire.
Claim 11
Dependent Claim
32 words
A polyester resin composition prepared by adding 0.01 to 3% by weight, based on the total amount of the composition, of a stabilizer to the polyester resin composition according to claim 6.
Claim 12
Dependent Claim
17 words
The electric wire coated with a coating material comprising the polyester resin composition according to claim 6.
Claim 13
Dependent Claim
17 words
The electric wire coated with a coating material comprising the polyester resin composition according to claim 7.
Claim 14
Dependent Claim
16 words
The electric wire according to claim 11, wherein said electric wire is a low-voltage electric wire.
Claim 15
Dependent Claim
15 words
The electric wire according to claim 12, wherein said electric wire is a low-voltage wire.
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) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |