US4097446A
Expired / Lapsed
US
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Reinforced intercrystalline thermoplastic polyester compositions
Assignee: General Electric Co
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Filing: 1976-08-25
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Granted: 1978-06-27
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Expires: 1996-08-25
Abstract
Abstract Intercrystalline normally rigid thermoplastic compositions comprising a combination of (a) very rapidly crystallizable polyester, (b) a crystalline or amorphous polymer and (c) a reinforcing filler for the combination. There are also provided such compositions including flame retardant agents.
Inventors
- 👤 Visvaldis Abolins
- 👤 Fred F. Holub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:06
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L101/00; C08L55/00; C08L55/02; Y; Y10; Y10S; Y10S260/00; Y10S260/35
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
154 words
A reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination, (a) at least one high molecular weight normally crystalline polyester resin which very rapidly crystallizes from the melt, (b) at least one high molecular weight normally crystalline, normally amorphous or normally partially crystalline and partially amorphous polymer in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); that is selected from the group consisting of: polyethylene, poly(methylpentene), a copolymer of ethylene and ethyl acrylate, poly(vinyl chloride), a copolymer of vinyl chloride and vinyl acetate, natural rubber, a rubbery copolymer of butadiene and acrylonitrile, a polyamide, a polyimide, a polyorganosiloxane, a copolymer of a polyorganosiloxane and a vinyl aromatic monomer, an acrylic monomer or an aromatic carbonate, and a siloxane-nitrogen copolymer containing amido, amideimido or imide groups; and (c) a reinforcing amount of a reinforcing filler for said combination.
Claim 2
Dependent Claim
154 words
A reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination, (a) at least one high molecular weight normally crystalline polyester resin which very rapidly crystallizes from the melt, (b) at least one high molecular weight normally crystalline, normally amorphous or normally partially crystalline and partially amorphous polymer in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); that is selected from the group consisting of: polyethylene, poly(methylpentene), a copolymer of ethylene and ethyl acrylate, poly(vinyl chloride), a copolymer of vinyl chloride and vinyl acetate, natural rubber, a rubbery copolymer of butadiene and acrylonitrile, a polyamide, a polyimide, a polyorganosiloxane, a copolymer of a polyorganosiloxane and a vinyl aromatic monomer, an acrylic monomer or an aromatic carbonate, and a siloxane-nitrogen copolymer containing amido, amideimido or imide groups; and (c) a reinforcing amount of a reinforcing filler for said combination.
Claim 3
Dependent Claim
32 words
A composition as defined in claim 1 wherein said polyester resin (a) is a poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms.
Claim 4
Dependent Claim
18 words
A composition as defined in claim 1 wherein polyester resin (a) includes repeating units of the formula ##STR4##
Claim 5
Dependent Claim
14 words
A composition as defined in claim 3 wherein said polyester (a) is poly(1,4-butylene terephthalate).
Claim 6
Dependent Claim
27 words
A composition as defined in claim 1 wherein said reinforcing filler (c) is selected from the group consisting of reinforcing metals, ceramics, silicas, quartz, glass and carbons.
Claim 7
Dependent Claim
38 words
A composition as defined in claim 5 wherein said reinforcing filler is filamentous glass, in an amount from about 1 to about 80 percent by weight based on the combined weight of glass and components (a) and (b).
Claim 8
Dependent Claim
91 words
A reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination; (a) a high molecular weight normally crystalline poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight polyethylene, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); and (c) reinforcing filamentous glass, in an amount of from about 1 to 80 percent by weight based on the weight of the combination.
Claim 9
Dependent Claim
91 words
A reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination; (a) a high molecular weight normally crystalline poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight polyethylene, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); and (c) reinforcing filamentous glass, in an amount of from about 1 to 80 percent by weight based on the weight of the combination.
Claim 10
Dependent Claim
14 words
A composition as defined in claim 7 wherein said polyester resin is poly(1,4-butylene terephthalate).
Claim 11
Dependent Claim
90 words
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, in combination, (a) a high molecular weight normally crystalline poly-(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight polyamide, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); and (c) reinforcing filamentous glass, in an amount of from about 1 to about 80 percent by weight based on the weight of the combination.
Claim 12
Dependent Claim
90 words
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, in combination, (a) a high molecular weight normally crystalline poly-(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight polyamide, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); and (c) reinforcing filamentous glass, in an amount of from about 1 to about 80 percent by weight based on the weight of the combination.
Claim 13
Dependent Claim
14 words
A composition as defined in claim 9 wherein said polyester resin is poly(1,4-butylene terephthalate).
Claim 14
Dependent Claim
96 words
A reinforcing intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination, (a) a high molecular weight normally crystalline poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight copolymer of ethylene and butene-1, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); and (c) reinforcing filamentous glass, in an amount of from about 1 to about 80 percent by weight based on the weight of the combination.
Claim 15
Dependent Claim
96 words
A reinforcing intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination, (a) a high molecular weight normally crystalline poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight copolymer of ethylene and butene-1, in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); and (c) reinforcing filamentous glass, in an amount of from about 1 to about 80 percent by weight based on the weight of the combination.
Claim 16
Dependent Claim
15 words
A composition as defined in claim 11 wherein said polyester resin is a poly(1,4-butylene terephthalate).
Claim 17
Dependent Claim
42 words
A composition as defined in claim 1 wherein said polyester resin is normally flammable, the composition also including (d) a flame retardant additive in a minor proportion but in an amount at least sufficient to render said polyester resin non-burning or self-extinguishing.
Claim 18
Dependent Claim
43 words
A composition as defined in claim 13, the composition also including (e) a polytetrafluoroethylene resin or a fumed colloidal silica in a minor proportion based on said composition but in an amount at least sufficient to render said polyester resin non-dripping, when burning.
Claim 19
Dependent Claim
74 words
A composition as defined in claim 13 wherein said flame retardant additive is a halogen-containing compound; a halogen-containing compound in admixture with antimony oxide; elemental phosphorus or a phosphorus compound; a halogen-containing compound in admixture with a phosphorus compound; a compound containing phosphorus-nitrogen bonds; or a mixture of the foregoing, and said compound is present in an amount of from 0.5 to 50 parts by weight per hundred parts resinous components (a) plus (b).
Claim 20
Dependent Claim
77 words
A composition as defined in claim 15 wherein said halogen-containing compound is an aromatic halogen containing compound selected from the group consisting of chlorinated benzene; brominated benzene; chlorinated biphenyl; chlorinated terphenyl; brominated biphenyl; brominated terphenyl; a compound comprising two phenyl radicals separated by a divalent alkylene or oxygen group and having at least two substituents selected from the group consisting of chlorine and bromine per phenyl radical; and a mixture of at least two of the foregoing.
Claim 21
Dependent Claim
14 words
A composition as defined in claim 16 wherein said aromatic halogen compound is hexabromobenzene.
Claim 22
Dependent Claim
18 words
A composition as defined in claim 16 wherein said aromatic halogen compound is chlorinated biphenyl or chlorinated terphenyl.
Claim 23
Dependent Claim
26 words
A composition as defined in claim 16 wherein said flame retardant additive is hexabromobenzene, a chlorinated biphenyl or a chlorinated terphenyl in admixture with antimony oxide.
Claim 24
Dependent Claim
40 words
A composition as defined in claim 16 wherein said flame retardant additive is selected from the group consisting of elemental phosphorus; organic phosphonic acids, phosphonates, phosphinates, phosphonites, phosphinites, phosphine oxides, phosphines, phosphites, phosphates and mixtures of any of the foregoing.
Claim 25
Dependent Claim
125 words
A flame retardant reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination, (a) a high molecular weight normally crystalline normally flammable poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight normally solid polyethylene in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); (c) reinforcing filamentous glass, in an amount of from about 1% to about 80% by weight based on the weight of glass and components (a) and (b); and (d) a flame retardant additive, in an amount of from 0.5 to 50 parts by weight per 100 parts of components (a) and (b).
Claim 26
Dependent Claim
125 words
A flame retardant reinforced intercrystalline normally rigid thermoplastic molding composition, consisting essentially of in combination, (a) a high molecular weight normally crystalline normally flammable poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; (b) a high molecular weight normally solid polyethylene in the concentration range of from 1 to 99 parts by weight of (a) to 99 to 1 parts by weight of (b); (c) reinforcing filamentous glass, in an amount of from about 1% to about 80% by weight based on the weight of glass and components (a) and (b); and (d) a flame retardant additive, in an amount of from 0.5 to 50 parts by weight per 100 parts of components (a) and (b).
Claim 27
Dependent Claim
49 words
A composition as defined in claim 21 wherein said component (a) is poly(1,4-butylene terephthalate) and component (d) is selected from the group consisting of a highly chlorinated biphenyl or terphenyl alone or in combination with antimony oxide; hexabromobenzene alone or in combination with antimony oxide and antimony oxide alone.
Claim 28
Dependent Claim
33 words
A composition as defined in claim 22 which also includes (e) a polytetrafluoroethylene resin in an amount of from 0.5 to 2.5 parts by weight per 100 parts of components (a) and (b).
Claim 29
Dependent Claim
16 words
A composition as defined in claim 10 wherein the high molecular weight polyamide is poly(hexamethylene sebacamide).
Claim 30
Dependent Claim
17 words
A composition as defined in claim 24 wherein the poly(hexamethylene sebacamide) has a density of 1.09 g./cc.
Claim 31
Dependent Claim
15 words
A composition as defined in claim 10 wherein the high molecular weight polyamide is polycaprolactam.
Claim 32
Dependent Claim
33 words
A composition as defined in claim 9 which includes from about 10 to about 40% by weight of reinforcing filamentous glass and 95 to 5 parts by weight of high molecular weight polyamide.
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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) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |