Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
239 words
A shaped article in the form of a fiber having a tensile modulus of from 700 to approximately 2,000g/d at room temperature or a film having a tensile modulus from 1,800 to approximately 5,000 kg/mm 2 at room temperature, said shaped article comprising a wholly aromatic copolyamide copolymer consisting of recurring units of the formula: --NH--Ar.sub.1 --NH--CO--Ar.sub.2 --CO-- (A) or a mixture of recurring units of the formula (A) and the formula: --NH--Ar.sub.3 --CO-- (B) wherein Ar 1 independently represents divalent aromatic hydrocarbon ring residues selected from the group consisting of ##STR11## Ar 2 independently represents divalent aromatic hydrocarbon ring residues selected from the group consisting of ##STR12## Ar 3 independently represents divalent aromatic hydrocarbon ring residues selected from the group consisting of ##STR13## wherein X is halo, n is an integer of from 1 or 3, and Y is a divalent radical selected from the group consisting of ##STR14## wherein R' represents an alkyl group having up to 5 carbon atoms, wherein the molar ratio of the aromatic residues of Ar 1 , Ar 2 and Ar 3 fall within the region formed by connecting points P, Q, R and S in order, through straight lines in the triangular coordinate of FIG. 1 attached hereto, said wholly aromatic copolyamide having an intrinsic viscosity of at least 1.5 as measured on a solution containing 0.5 g of the copolyamide in 100 ml of concentrated sulfuric acid at 30° C.
Claim 2
Dependent Claim
239 words
A shaped article in the form of a fiber having a tensile modulus of from 700 to approximately 2,000g/d at room temperature or a film having a tensile modulus from 1,800 to approximately 5,000 kg/mm 2 at room temperature, said shaped article comprising a wholly aromatic copolyamide copolymer consisting of recurring units of the formula: --NH--Ar.sub.1 --NH--CO--Ar.sub.2 --CO-- (A) or a mixture of recurring units of the formula (A) and the formula: --NH--Ar.sub.3 --CO-- (B) wherein Ar 1 independently represents divalent aromatic hydrocarbon ring residues selected from the group consisting of ##STR11## Ar 2 independently represents divalent aromatic hydrocarbon ring residues selected from the group consisting of ##STR12## Ar 3 independently represents divalent aromatic hydrocarbon ring residues selected from the group consisting of ##STR13## wherein X is halo, n is an integer of from 1 or 3, and Y is a divalent radical selected from the group consisting of ##STR14## wherein R' represents an alkyl group having up to 5 carbon atoms, wherein the molar ratio of the aromatic residues of Ar 1 , Ar 2 and Ar 3 fall within the region formed by connecting points P, Q, R and S in order, through straight lines in the triangular coordinate of FIG. 1 attached hereto, said wholly aromatic copolyamide having an intrinsic viscosity of at least 1.5 as measured on a solution containing 0.5 g of the copolyamide in 100 ml of concentrated sulfuric acid at 30° C.
Claim 3
Dependent Claim
23 words
A shaped article as claimed in claim 1, wherein said fiber has a tensile modulus of at least 750 g/d at room temperature.
Claim 4
Dependent Claim
23 words
A shaped article as claimed in claim 1 wherein said fiber has a tensile strength of at least 18 g/d at room temperature.
Claim 5
Dependent Claim
16 words
A shaped article of claim 1 wherein the recurring units are units of the formula (A).
Claim 6
Dependent Claim
16 words
A shaped article of claim 2 wherein the recurring units are units of the formula (A).
Claim 7
Dependent Claim
16 words
A shaped article of claim 3 wherein the recurring units are units of the formula (A).