Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
210 words
A wholly aromatic polyester composition comprising (a) loo parts by weight of a wholly aromatic polyester containing as a main component at least one compound selected from the group consisting of aromatic dicarboxylic acids, aromatic dihydroxy compounds and aromatic hydroxycarboxylic acids, and (b) from 5 to 3oo parts by weight of a low-molecular-weight compound, which is non-reactive with the wholly aromatic polyester and has a boiling point of at least 200°C under atmospheric pressure and a molecular weight of not more than l,ooo and is selected from the group consisting of imide compounds of the formula (l)-a wherein A represents a divalent aromatic group which may be substituted; R 1 represents an aromatic group or linear or cyclic aliphatic group having a valence of n, each of which may be substituted; n is 1 or 2; and the imide ring is 5- or 6-membered, imide compounds of formula (l)-b wherein A 2 represents a tetravalent aromatic group which may be substituted; R 2 represents a monovalent linear or cyclic aliphatic group which may be substituted; and the imide rings are 5- or 6-membered, trialkyl isocyanurates of formula (l)-c wherein R 3 represents a monovalent alkyl group, and diphenyl sulfone compounds of formula (l)-d wherein the phenyl rings may be substituted.
Claim 2
Dependent Claim
210 words
A wholly aromatic polyester composition comprising (a) loo parts by weight of a wholly aromatic polyester containing as a main component at least one compound selected from the group consisting of aromatic dicarboxylic acids, aromatic dihydroxy compounds and aromatic hydroxycarboxylic acids, and (b) from 5 to 3oo parts by weight of a low-molecular-weight compound, which is non-reactive with the wholly aromatic polyester and has a boiling point of at least 200°C under atmospheric pressure and a molecular weight of not more than l,ooo and is selected from the group consisting of imide compounds of the formula (l)-a wherein A represents a divalent aromatic group which may be substituted; R 1 represents an aromatic group or linear or cyclic aliphatic group having a valence of n, each of which may be substituted; n is 1 or 2; and the imide ring is 5- or 6-membered, imide compounds of formula (l)-b wherein A 2 represents a tetravalent aromatic group which may be substituted; R 2 represents a monovalent linear or cyclic aliphatic group which may be substituted; and the imide rings are 5- or 6-membered, trialkyl isocyanurates of formula (l)-c wherein R 3 represents a monovalent alkyl group, and diphenyl sulfone compounds of formula (l)-d wherein the phenyl rings may be substituted.
Claim 3
Dependent Claim
23 words
The composition of claim 1 wherein the wholly aromatic polyester contains an aromatic dicarboxylic acid and an aromatic dihydroxy compound as main components.
Claim 4
Dependent Claim
27 words
The composition of claim 1 wherein the wholly aromatic polyester contains an aromatic dicarboxylic acid, an aromatic dihydroxy compound and an aromatic hydroxy-carboxylic acid as main components.
Claim 5
Dependent Claim
24 words
The composition of anyone of claims 1 to 3, wherein a wholly aromatic polyester, the melt of which will be optically anisotropic, is used.
Claim 6
Dependent Claim
37 words
The composition of anyone of claims 1 to 4, wherein the wholly aromatic polyester is one which will form an optically anisotropic melt, and the amount of the low-molecular-weight compound is 5o to 15o parts by weight.
Claim 7
Dependent Claim
35 words
The composition of anyone of claims 1 to 3, wherein the wholly aromatic polyester is optically isotropic in the molten state, and the amount of the low-molecular-weight compound is lo to 5o parts by weight.
Claim 8
Dependent Claim
103 words
A process for producing the wholly aromatic polyester composition of claim 1, which comprises polycondensing in the molten state a polyester-forming starting mixture consisting mainly of at least one compound selected from the group consisting of aromatic dicarboxylic acids, aromatic dihydroxy compounds, aromatic hydroxycarboxylic acids and ester-forming derivatives of these compounds in the presence of a low-molecular-weight compound having a molecular weight of not more than l,ooo which is non-reactive with the starting mixture and the resulting wholly aromatic polyester and optionally further polymerizing the resulting wholly aromatic polyester in the solid state, thereby converting the starting mixture to a wholly aromatic polyester.