High temperature polyketone copolymers
AssigneeHt Materials Corporation
InventorYiFeng Wang
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Abstract
Compositions and methods for amorphous high temperature polyketone polymers incorporating 2H-benzimidazol-2-one with dihalobenzophenone and bis(halobenzoyl)benzene as comonomer units are described herein. The polyketones polymers have advantageous properties, particularly in terms of high glass transition temperatures (Tg), inherently flame resistance, good mechanical properties at elevated temperature, chemical resistance and dimensional stability in wet environment. The polymers are suitable for manufacturing high temperature molded systems and other articles of manufacture via injection molding, extrusion, compression molding, coating, blow molding, thermoforming, rotational molding and additive manufacturing.
Claims20
A polymeric composition comprising a copolymer having at least two recurring units selected from the group of recurring units consisting of
- a first recurring unit of formula I:
- a second recurring unit of formula II:
- and a third recurring unit of formula III:
- wherein the value of the subscript x ranges from 0 to 5000, the value of the subscript y ranges from 0 to 5000, the value of the subscript z ranges from 0 to 5000, subject to the limitation that the ratio of x:(y+z) ranges from 99:1 to 0:100;
- the ratio of y:z ranges from 100:0 to 0:100 when x is greater than 0, and the ratio of y:z ranges from 99:1 to 1:99 when x is 0;
- wherein said copolymer has an inherent solution viscosity greater than 0.1 dL/g, and a glass transition temperature Tg greater than 240° C.
Dependencies are inferred from the claim text.