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US 2024/0254332 A1Published application
Blends of poly(etherketoneketone) polymers
AssigneeSolvay Specialty Polymers USA, LLC
InventorsChantal Louis, Mohammad Jamal El-Hibri
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Abstract
The present invention relates to blends of poly(ether ketone ketone) (PEKK) polymers, in particular to certain blends endowed with lower melting point than traditional PEKK polymers, yet maintaining high crystallinity and rapid crystallization behaviour, which are composed of a major amount of a first nucleophilic PEKK having a first T/I ratio, and a minor amount of a second PEKK having a second T/I ratio higher than the first T/I ratio: to methods of making the same, and to uses thereof in various fields.
Claims15
A composition [composition (C)] comprising:
- a major amount of a first PEKK polymer [polymer (PEKKlow)] comprising recurring units (RT) and recurring units (R1), having a first molar content of units (RT) [(Tlow)] and a first molar content of units (RI) [(Ilow)], with
- T
- low
- (
- mol
- .
- %
- )
- =
- [
- units
-
- (
- R
- T
- )
- ]
- low
- [
- units
-
- (
- R
- T
- )
- ]
- low
- +
- [
- units
-
- (
- R
- I
- )
- ]
- low
- ×
- 100
- and with
- I
- low
- (
- mol
- .
- %
- )
- =
- [
- units
-
- (
- R
- I
- )
- ]
- low
- [
- units
-
- (
- R
- T
- )
- ]
- low
- +
- [
- units
-
- (
- R
- I
- )
- ]
- low
- ×
- 100
- ,
- so defining a first T/I ratio [(T/I)low], with
- (
- T
- /
- I
- )
- low
- =
- T
- low
- I
- low
- ;
- wherein recurring unit (RT) is represented by formula (T):
- and recurring unit (R1) is represented by formula (I):
- wherein:
- each R1 and R2, at each instance, is independently selected from the group consisting of an alkyl, an alkenyl, an alkynyl, an aryl, an ether, a thioether, a carboxylic acid, an ester, an amide, an imide, an alkali or alkaline earth metal sulfonate, an alkyl sulfonate, an alkali or alkaline earth metal phosphonate, an alkyl phosphonate, an amine, and a quaternary ammonium;
- and
- each i and j, at each instance, is an independently selected integers ranging from 0 to 4;
- and
- a minor amount of a second PEKK polymer [polymer (PEKKhigh)] comprising said recurring units (R1) and said recurring units (RT), having a second molar content of units (RT) [(Thigh)] and a second molar content of units (RI) [(Ihigh)], with
- T
- high
- (
- mol
- .
- %
- )
- =
- [
- units
-
- (
- R
- T
- )
- ]
- high
- [
- units
-
- (
- R
- T
- )
- ]
- high
- +
- [
- units
-
- (
- R
- I
- )
- ]
- high
- ×
- 100
- and with
- I
- high
- (
- mol
- .
- %
- )
- =
- [
- units
-
- (
- R
- I
- )
- ]
- high
- [
- units
-
- (
- R
- T
- )
- ]
- high
- +
- [
- units
-
- (
- R
- I
- )
- ]
- high
- ×
- 100
- ,
- so defining a second T/I ratio [(T/I)high], with
- (
- T
- /
- I
- )
- high
- =
- T
- high
- I
- high
- ;
- wherein polymer (PEKKlow) is a nucleophilic PEKK;
- and
- wherein the (T/I)low of PEKKlow is lower than the (T/I)high of PEKKhigh;
- and
- wherein the following inequality is satisfied:
- Thigh−Tlow≤17mol. %.
194 more elements
Dependencies are inferred from the claim text.