EP0063880A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Poly(esteramide) derived from 6-hydroxy-2-naphthoic acid
Assignee: Celanese Corp
•
Filing: 1982-04-06
•
Granted: —
•
Expires: 2002-04-06
Abstract
Abstract A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. The poly(ester-amide) of the present invention consists essentially of the recurring units (a) 6-oxy-2-naphthoyl moiety, (b) aromatic moiety capable of forming an amide linkage in the polymer and, optionally, (c) other aromatic moiety derived from aromatic hydroxyacid, in the proportions indicated. The aromatic moiety capable of forming an amide linkage in the polymer is an amino derivative or a substituted amino derivative of an aromatic carboxylic acid. Preferably, the aromatic moiety capable of forming an amide linkage is derived from p-aminobenzoic acid. The resulting poly(ester-amide) exhibits a melting temperature below 400°C., preferably below 350°C. The poly(ester-amide) of the present invention is preferably formed by a melt polymerisation technique.
Inventors
- 👤 Larry F. Charbonneau
- 👤 Gordon W. Calundann
- 👤 Anthony J. East
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 12:24
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
183 words
A melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature below 400°C. consisting essentially of recurring moieties I, II and (optionally) III wherein: I is II is where Ar is a divalent radical comprising at least one aromatic ring, and Z is NH or NR (where R is an alkyl group of 1 to 6 carbon atoms or an aryl where Ar' is a divalent radical comprising at least one aromatic ring other than naphthylene; wherein at least some of the hydrogen atoms present upon any of the rings of the various moieties may optionally be replaced by substituents selected from alkyl groups of 1 to 4 carbon atoms, alkoxy groups of 1 to 4 carbon atoms, halogen, phenyl and mixtures thereof, and wherein moiety I is present in. a concentration of 10 to 90 mole percent, moi.ety II is present in a concentration of 5 to 45 mole percent, and moiety III is present in a concentration of 0 to 45 mole percent, the total concentration of moieties I and III being from 55 to 95 mole percent.
Claim 2
Dependent Claim
183 words
A melt processable poly(ester-amide) capable of forming an anisotropic melt phase at a temperature below 400°C. consisting essentially of recurring moieties I, II and (optionally) III wherein: I is II is where Ar is a divalent radical comprising at least one aromatic ring, and Z is NH or NR (where R is an alkyl group of 1 to 6 carbon atoms or an aryl where Ar' is a divalent radical comprising at least one aromatic ring other than naphthylene; wherein at least some of the hydrogen atoms present upon any of the rings of the various moieties may optionally be replaced by substituents selected from alkyl groups of 1 to 4 carbon atoms, alkoxy groups of 1 to 4 carbon atoms, halogen, phenyl and mixtures thereof, and wherein moiety I is present in. a concentration of 10 to 90 mole percent, moi.ety II is present in a concentration of 5 to 45 mole percent, and moiety III is present in a concentration of 0 to 45 mole percent, the total concentration of moieties I and III being from 55 to 95 mole percent.
Claim 3
Dependent Claim
20 words
The poly(ester-amide) of claim 1 which is capable of forming an anisotropic melt phase at a temperature below 350°C .
Claim 4
Dependent Claim
30 words
The poly(ester-amide) of claim 1 or 2 which exhibits an inherent viscosity of at least 1.0 dl./g. when measured at a concentration of 0.1 weight/volume percent in pentafluorophenol at 60°C.
Claim 5
Dependent Claim
29 words
4: The poly(ester-amide) of claim 3 which exhibits an inherent viscosity of at least 2.0 dl./g. when measured at a concentration of 0.1 weight/volume percent in pentafluorophenol at 60°C.
Claim 6
Dependent Claim
23 words
The poly(ester-amide) of any of claims 1 - 4 wherein moiety I is present in a concentration of 20 to 80 mole percent.
Claim 7
Dependent Claim
19 words
The poly(ester-amide) of claim 5 wherein moiety I is present in a concentration of 30 to 70 mole percent.
Claim 8
Dependent Claim
23 words
The poly(ester-amide) of any of claims 1 - 6 wherein moiety II is present in a concentration of 5 to 35 mole percent.
Claim 9
Dependent Claim
19 words
The poly(ester-amide) of claim 7 wherein moiety II is present in a concentration of 10 to 30 mole percent.
Claim 10
Dependent Claim
21 words
The poly(ester-amide)of any of claims 1 -8 wherein moiety III is present in a concentration of at least 5 mole percent.
Claim 11
Dependent Claim
18 words
The poly(ester-amide)of claim 9 wherein moiety III is present in a concentration of at least 10 mole percent.
Claim 12
Dependent Claim
19 words
The poly(ester-amide) of claim 10 wherein moiety III is present in a concentration of 10 to 30 mole percent.
Claim 13
Dependent Claim
26 words
The poly (ester-amide) of any of claims 1 - 9 wherein the total concentration of moieties I and III is from 65 to 95 mole percent.
Claim 14
Dependent Claim
21 words
The poly(ester-amide) of claim 12 wherein the total concentration of moieties I and III is from 70 to 90 mole percent.
Claim 15
Dependent Claim
17 words
The poly(ester-amide) of any of claims 1 - 13 wherein moiety II is derived from p-aminobenzoic acid.
Claim 16
Dependent Claim
15 words
The poly(ester-amide) of any of claims 1- 14 wherein moiety III is a p-oxybenzoyl' moiety.
Claim 17
Dependent Claim
30 words
A moulding compound comprising the melt processable poly(ester-amide) of any of claims 1 - 15 which incorporates 1 to 60 percent by weight of a solid filler and/or reinforcing agent.
Claim 18
Dependent Claim
22 words
A moulded article comprising the melt processable poly (ester-amide) of any of claims 1 -115 or the moulding compound. .of claim 16.
Claim 19
Dependent Claim
17 words
A fibre which ha's been melt spun from the poly(ester-amide) of any of claims 1 - 15.
Claim 20
Dependent Claim
17 words
A film which has been melt extruded from the poly(ester-amide) of any of claims 1 - 15.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.