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US 4,611,048 AGranted
Hydroxy terminated polyetherimide oligomers
AssigneeGeneral Electric Company
InventorEdward N. Peters
Life of this patent
Estimating the term…
Abstract
Polyetherimide oligomers are end functionalized with aryl hydroxy groups by reacting mixtures of bisphenol-A dianhydride, arylene diamines and aryl aminoalcohols. The oligomers are reactive with other polymer precursors, such as bisphenol-A and phosgene to provide segmented block copolymers of improved toughness and compatibility with other resins.
Claims15
A hydroxy terminated polyetherimide oligomer of the formula:
- ##STR15## wherein n is an integer of from about 1 to about 12;
- and --O--T<
- group is selected from the class consisting of:
- ##STR16## R.sup.2 being hydrogen, lower alkyl or lower alkoxy;
- and Z is a member of the class consisting of:
- ##STR17## and (2) divalent organic radicals of the general formula:
- ##STR18## where Y is a member selected from the class consisting of divalent radicals of the formulae:
- ##STR19## where q is 0 or 1, and y is a whole number from 1 to 5;
- and R is a divalent organic radical selected from the class consisting of (1) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (2) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganoloxane, and (3) divalent radicals included by the formula:
- ##STR20## where Q is a member selected from the class consisting of:
- ##STR21## where x is a whole number from 1 to 5 inclusive;
- and R.sup.1 is as defined for R above.
9 more elements
A process for the preparation of a hydroxy terminated polyetherimide oligomer of the formula:
- ##STR27## wherein n is an integer of from about 3 to about 12;
- and --O--T<
- group is selected from the class consisting of:
- ##STR28## R.sup.2 being hydrogen, lower alkyl or lower alkoxy;
- and Z is a member of the class consisting of:
- ##STR29## and (2) divalent organic radicals of the general formula:
- ##STR30## where Y is a member selected from the class consisting of divalent radicals of the formulas:
- ##STR31## where q is 0 or 1, and y is a whole number from 1 to 5;
- and R is a divalent organic radical selected from the class consisting of (1) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (2) alkylene radicals and cycloalkylene radicals having from 20-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganosiloxane, and (3) divalent radicals included by the formula:
- ##STR32## where Q is a member selected from the class consisting of:
- ##STR33## where x is a whole number from 1 to 5 inclusive;
- and R.sup.1 is as defined for R above;
- said process comprising reacting a bis ether anhydride of the formula:
- ##STR34## wherein T and Z are as defined above, with the diamine of the formula:
- H.sub.2 N--R--NH.sub.2
- wherein R is as defined above, and an aminoalcohol of the formula:
- H.sub.2 N--R.sup.1 --OH
- wherein R.sup.1 is as defined above, by admixing said bis ether anhydride, diamine and aminoalcohol in a solvent and heating at a temperature of about 60.degree. to about 250.degree. C.;
- the mole ratio of said bis ether anyhdride to said diamine to said aminoalcohol being in the range of from about 0.4-0.5:0.2-0.423:0.4-0.077.
16 more elements
Dependencies are inferred from the claim text.