US 11,649,323 B2 · Semicrystalline poly(aryl ether ketone) copolymers

Abstract

Compositions and methods for semicrystalline poly(aryl ether ketone) copolymers incorporating 2-benzimidazolinone and hydroquinone as comonomer units with 4,4′-dihalobenzophenone, and compositions and methods for semicrystalline poly(aryl ether ketone) copolymers incorporating 2-benzimidazolinone and hydroquinone as comonomer units with 1,4-bis(4-dihalobenzoyl)benzene are described herein. The copolymers have advantageous properties, particularly in terms of their glass transition temperatures (Tg), crystallization temperatures from melt (Tc), melting temperatures (Tm), crystallinity and chemical resistance. The copolymers are suitable for manufacturing high temperature and chemical resistance molded systems and other articles of manufacture via injection molding, extrusion, compression molding, thermoforming and additive manufacturing.

Claims22

Dependent claims

A polymeric composition comprising a copolymer having a first recurring unit of formula I:

and a second recurring unit of formula II:
wherein
x is 2 to 5000;
y is 2 to 5000;
a ratio of x:y is 1:99 to 9.5:91.5;
and
wherein said polymeric composition is semicrystalline having an inherent solution viscosity greater than 0.3 dL/g, a Tg greater than 150° C., a Tc less than 280° C., a Tm less than 340° C., and an enthalpy of melting endotherm (ΔHm) greater than 10 J/g and less than 55 J/g;
wherein said semicrystalline copolymer crystallizes from a melt at a cooling rate of from 5° C./minute to about 200° C./minute.

5 more elements

Dependencies are inferred from the claim text.

Semicrystalline poly(aryl ether ketone) copolymers

Life of this patent

Semicrystalline poly(aryl ether ketone) copolymers

Life of this patent

Abstract

Claims22