US4196066A
Expired / Lapsed
US
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Cured aromatic polyester composition and process for its production
Assignee: Teijin Ltd
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Filing: 1978-06-30
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Granted: 1980-04-01
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Expires: 1998-06-30
Abstract
Abstract A cured or uncured linear aromatic polyester composition melt-blended and composed of (A) 100 parts by weight of a saturated linear aromatic polyester in which at least 70 mole % of the acid component consists of an aromatic dicarboxylic acid, and (B) 0.1 to 50 parts by weight of a reactive compound which is solid at room temperature or is a liquid having a boiling point of at least 200° C. under atmospheric pressure, and which contains in its molecule at least one aliphatic unsaturated group substantially non-reactive with the polyester (A) and the aliphatic unsaturated group of the reactive compound (B) under conditions of melt-blending with the polyester (A) and at least one epoxy group reactive with the polyester (A) under the melt-blending conditions. The cured linear aromatic polyester composition can be prepared by extruding the uncured linear aromatic polyester composition under melting conditions, and subjecting the resulting extrudate to a curing treatment.
Inventors
- 👤 Hiroo Inata
- 👤 Makoto Ogasawara
- 👤 Tsuto Morinaga
- 👤 Akihiro Norike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:08
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58; C08G63/91; C08G63/914; C08G63/916
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
191 words
A process for preparing a cured linear aromatic polyester composition, which comprises extruding under melting conditions an uncured linear aromatic polyester composition, said uncured polyester composition comprising (A) 100 parts by weight of a saturated linear aromatic polyester in which at least 70 mole% of the acid component consists of an aromatic dicarboxylic acid, and (B) 0.1 to 50 parts by weight of a reactive compound which is solid at room temperature or is a liquid having a boiling point of at least 200° C. under atmospheric pressure, and which contains in its molecule at least one aliphatic unsaturated group substantially non-reactive with the polyester (A) and the aliphatic unsaturated group of the reactive compound (B) under conditions of melt-blending with the polyester (A) and at least one epoxy group reactive with the polyester (A) under the melt-blending conditions wherein the aliphatic unsaturated group of the reactive compound is a group expressed by the following formula (I) ##STR20## wherein the bonds (a), (b), (c) and (d) are attached to hydrogen or organic groups and bond (e) is attached to an organic group; and subjecting the resulting extrudate to a curing treatment.
Claim 2
Dependent Claim
191 words
A process for preparing a cured linear aromatic polyester composition, which comprises extruding under melting conditions an uncured linear aromatic polyester composition, said uncured polyester composition comprising (A) 100 parts by weight of a saturated linear aromatic polyester in which at least 70 mole% of the acid component consists of an aromatic dicarboxylic acid, and (B) 0.1 to 50 parts by weight of a reactive compound which is solid at room temperature or is a liquid having a boiling point of at least 200° C. under atmospheric pressure, and which contains in its molecule at least one aliphatic unsaturated group substantially non-reactive with the polyester (A) and the aliphatic unsaturated group of the reactive compound (B) under conditions of melt-blending with the polyester (A) and at least one epoxy group reactive with the polyester (A) under the melt-blending conditions wherein the aliphatic unsaturated group of the reactive compound is a group expressed by the following formula (I) ##STR20## wherein the bonds (a), (b), (c) and (d) are attached to hydrogen or organic groups and bond (e) is attached to an organic group; and subjecting the resulting extrudate to a curing treatment.
Claim 3
Dependent Claim
17 words
The process of claim 1 wherein the extrudate is in the form of a filament or film.
Claim 4
Dependent Claim
24 words
The process of claim 1 or 2 wherein the curing treatment is the application of ultraviolet irradiation in the presence of a photo-reaction initiator.
Claim 5
Dependent Claim
113 words
The process of claim 1 wherein the nonreactive aliphatic unsaturated group of the reactive compound (B) is a group expressed by the following formula ##STR21## wherein R 1 , R 2 and R 3 are identical or different, and each represent a group selected from the class consisting of a hydrogen atom and alkyl groups with 1 to 6 carbon atoms, and the epoxy group of the reactive compound (B) is a group expressed by the following formula ##STR22## wherein bonds (f) to (h) are bonded to hydrogen atoms or alkyl groups with 1 to 6 carbon atoms, and bond (i) or bonds (i) and (g) are organic moieties including general formula (II).
Claim 6
Dependent Claim
187 words
The process of claim 1 wherein the reactive compound (B) is a compound of the formula {(AQ.sub.1).sub.m X}n Q{Y(Q.sub.2 B).sub.m' }.sub.n (IV) wherein A represents a group of the formula ##STR23## wherein R 1 , R 2 and R 3 are identical or different, and each represent a group selected from the class consisting of a hydrogen atom and alkyl groups with 1 to 6 carbon atoms; B represents an epoxy group of the formula ##STR24## in which bonds (f) to (h) are bonded to hydrogen atoms or alkyl groups with 1 to 6 carbon atoms, and bond (i) or bonds (i) and (g) are organic moieties including general formula (II), X represents a direct bond, ##STR25## in which R 4 represents a hydrogen atom, an alkyl group containing 1 to 6 carbon atoms, or AQ 1 -; Y represents a direct bond, --O--, or --NH--; Q represents an organic group having a valence of 2 to 4; Q 1 and Q 2 represent a direct bond or an organic group having a valence of 2 to 4; and n, m, n' and m' are positive integers.
Claim 7
Dependent Claim
82 words
The process of claim 5 wherein the reactive compound (B) is a cyanuric or isocyanuric acid derivative corresponding to general formula (IV) in which X and Y represent a direct bond; Q represents ##STR26## in which R 5 and R 5 ' represent an alkyl group, AQ 1 -, or BQ 2 -; Q 1 and Q 2 represent a direct bond or an alkylene group with 1 to 5 carbon atoms, and each of n, m, n' and m' is 1.
Claim 8
Dependent Claim
228 words
The process of claim 5 wherein the reactive compound (B) is an imide or amide compound corresponding to general formula (IV) wherein X is ##STR27## Q represents an aliphatic group having a valence of 2 to 4 and containing 2 to 20 carbon atoms, an alicyclic group having a valence of 2 to 4 and containing 4 to 12 carbon atoms, a group having a valence of 2 to 4 and comprising ##STR28## (in which R 6 represents a hydrogen atom, an aryl group with 6 to 12 carbon atoms, an alkyl group with 1 to 6 carbon atoms, an alkyloxy group with 1 to 6 carbon atoms, a nitro group or a halogen atom), a group having a valence of 2 to 4 and comprising ##STR29## (in which R 6 is as defined above), or a group having a valence of 2 to 4 and comprising ##STR30## (in which Y' represents a member of the group consisting of --O--, --CO--, --SO 2 --, --NR 6 '--, R 6 ' being a hydrogen atom or an alkyl group with 1 to 6 carbon atoms, --O(CH 2 CH 2 ) l O--, l being an integer of 1 to 3, and alkylene groups with 2 to 12 carbon atoms); and Q 1 and Q 2 represent a direct bond or an alkylene group having 1 to 5 carbon atoms.
Claim 9
Dependent Claim
26 words
The process of claim 1 wherein the linear aromatic polyester (A) has an intrinsic viscosity, as measured in o-chlorophenol at 35° C., of at least 0.4.
Claim 10
Dependent Claim
23 words
The process of claim 1 in which the aliphatic unsaturated group of the reactive compound (B) is an allyl, methallyl or crotyl group.
Claim 11
Dependent Claim
22 words
The process of claim 1 wherein the epoxy group of the reactive compound (B) is a glycidyl, 2,3-epoxy-2-methylpropyl, or 2,3-epoxy butyl group.
Claim 12
Dependent Claim
22 words
The process of claim 9 wherein the epoxy group of the reactive compound (B) is a glycidyl, 2,3-epoxy-2-methylpropyl, or 2,3-epoxy butyl group.
Claim 13
Dependent Claim
30 words
The process of claim 4 in which the nonreactive aliphatic unsaturated group of formula (II) is an allyl group and the epoxy group of formula (III) is a glycidyl group.
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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) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |