Polyamideimides containing 3,4'-diamino-diphenylether as diamine component, with plasticizer
AssigneeTeijin Limited
InventorsShigeyoshi Hara, Hiroo Inata, Shunichi Matsumura
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Abstract
A polyamideimide having an inherent viscosity of above 0.48 which comprises a unit of the following formula (II) ##STR1## and a unit of the following formula (IV) ##STR2## as main units forming the molecular chains of the polyamideimide, and an intimate mixture of the polyamideimide and a plasticizing material for the polyamideimide.
Claims10
An intimate mixture comprising
- (A) a polyamideimide comprising a unit of the following formula (II) ##STR19## and a unit of the following formula (IV) ##STR20## as main units forming the molecular chains of the polyamideimide, said polyamideimide having an inherent viscosity (.eta..sub.inh) measured at 30.degree. C. in N-methylpyrrolidone, of above 0.48, and
- (B) a plasticizing material for the polyamideimide (A), said plasticizing material for the poly amideimide(A) being a diphenyl compound represented by the following formula
- Ar--A.sup.3 --Ar
- wherein A.sup.3 is --O--, --SO.sub.2, --CO--or an alkylene group, and
- Ar is an aromatic radical.
A process for preparing an intimate mixture of a polyamideimide and a plasticizing material, said process comprising thermally condensing an acid component, mainly comprising a member selected from the group consisting of trimellitic acid, trimellitic anhydride and mixtures thereof, with a diamine component, mainly comprising a member selected from the group consisting of 3,4'-diaminodiphenyl ether, a lower aliphatic carboxylic acid amide of 3,4'-diaminodiphenyl ether and mixture thereof, in the presence of a diphenyl compound represented by the following formula
- Ar--A.sup.3 --Ar
- wherein A.sup.3 is --O-13 , --SO.sub.2 --, --CO-- or an alkylene
- group, and Ar is an aromatic radical, to form an intimate mixture comprising
- (A) a polyamideimide comprising a unit of the following formula (II) ##STR23## and a unit of the following formula (IV) ##STR24## as main units forming the molecular chains of the polyamideimide, said polyamideimide having an inherent viscosity (.eta..sub.inh), measured at 30.degree. C. in N-methylpyrrolidone, 0.48, and
- (B) a plasticizing material for the polyamideimide (A), said plasticising material for the polyamideimide (A) being a diphenyl compound represented by the following formula
- Ar--A.sup.3 --Ar
- wherein A.sup.3 is --O--, --SO.sub.2 --, --CO-- or an alkylene group, and Ar is an aromatic radical.
An intimate mixture comprising
- (A) a polyamideimide comprising a unit of the following formula (II) ##STR25## and a unit of the following formula (IV) ##STR26## as main units forming the molecular chains of the polyamideimide, said polyamideimide having an inherent viscosity (.eta..sub.inh) measured at 30.degree. C. in N-methylpyrrolidone, of above 0.48, and
- (B) a plasticizing material for the polyamideimide (A), said plasticising material for the polyamideimide (A) being a diphenyl compound represented by the following formula
- Ar--SO.sub.2 --Ar
- wherein Ar is an aromatic radical.
Dependencies are inferred from the claim text.