US4013613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced intercrystalline thermoplastic polyester compositions
Assignee: General Electric Co
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Filing: 1971-10-01
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Granted: 1977-03-22
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Expires: 1991-10-01
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 10:19
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: 11
Claim 1
Independent Claim
113 words
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, 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 which polymer comprises a mixture of a polymerization product of an ethylenically unsaturated monomer and at least one difunctionally reactive compound which is polymerizable by oxidation, said polymer being present 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. a reinforcing amount of a reinforcing filler for said combination.
Claim 2
Dependent Claim
113 words
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, 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 which polymer comprises a mixture of a polymerization product of an ethylenically unsaturated monomer and at least one difunctionally reactive compound which is polymerizable by oxidation, said polymer being present 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. a reinforcing amount of a reinforcing filler for said combination.
Claim 3
Dependent Claim
21 words
A composition as defined in claim 1 wherein said ethylenically unsaturated monomer is styrene and said difunctionally reactive compound is 2,6-xylenol.
Claim 4
Dependent Claim
91 words
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, in combination, a. a high molecular weight normally crystalline linear poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; b. a high molecular weight poly(methyl methacrylate) 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 5
Dependent Claim
91 words
A reinforced intercrystalline normally rigid thermoplastic molding composition comprising, in combination, a. a high molecular weight normally crystalline linear poly(alkylene terephthalate, isophthalate or mixed terephthalate and isophthalate), said alkylene groups containing from 3 to 10 carbon atoms; b. a high molecular weight poly(methyl methacrylate) 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 6
Dependent Claim
14 words
A composition as defined in claim 3 wherein said polyester resin is poly(1,4-butylene terephthalate).
Claim 7
Dependent Claim
94 words
A reinforced intercrystalline normally rigid thermoplatic 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 normally crystalline wholly aromatic polyester, 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 8
Dependent Claim
94 words
A reinforced intercrystalline normally rigid thermoplatic 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 normally crystalline wholly aromatic polyester, 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 9
Dependent Claim
15 words
A composition as defined in claim 5 wherein said polyester resin is a poly(1,4-butylene terephthalate).
Claim 10
Dependent Claim
83 words
A reinforced intercrystalline normally rigid thermoplastic molding composition which consists essentially of, a. a high molecular weight normally crystalline poly(1,4-butylene terephthalate) resin; b. poly(2,6-dimethyl-1,4-phenylene ether) resin or poly(2,6-dimethyl-1,4-phenylene ether) resin in combination with a polystyrene resin, 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 11
Dependent Claim
83 words
A reinforced intercrystalline normally rigid thermoplastic molding composition which consists essentially of, a. a high molecular weight normally crystalline poly(1,4-butylene terephthalate) resin; b. poly(2,6-dimethyl-1,4-phenylene ether) resin or poly(2,6-dimethyl-1,4-phenylene ether) resin in combination with a polystyrene resin, 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.
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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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |