US 12,247,101 B2
PEEK-PEoEK copolymer powder and method of preparing the powder
Chantal Louis, Alpharetta, GA (US); and Mohammad Jamal El-Hibri, Atlanta, GA (US)
Assigned to SOLVAY SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US)
Filed by SOLVAY SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US)
Filed on Apr. 11, 2024, as Appl. No. 18/633,114.
Application 18/633,114 is a continuation of application No. 17/618,903, granted, now 12,018,124, previously published as PCT/EP2020/066177, filed on Jun. 11, 2020.
Claims priority of provisional application 62/869,099, filed on Jul. 1, 2019.
Claims priority of application No. 19192604 (EP), filed on Aug. 20, 2019.
Prior Publication US 2024/0287252 A1, Aug. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 65/46 (2006.01); B29C 64/153 (2017.01); B29K 71/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C08G 65/40 (2006.01); C08J 3/12 (2006.01)
CPC C08G 65/46 (2013.01) [B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08G 65/4012 (2013.01); C08J 3/12 (2013.01); B29K 2071/00 (2013.01); C08J 2371/10 (2013.01)] 15 Claims
 
1. A powder comprising a PEEK-PEoEK copolymer, wherein the copolymer comprises at least 50 mol. %, collectively, of repeat units (RPEEK) and repeat units (RPEoEK), relative to the total number of repeat units in the PEEK-PEoEK copolymer, wherein:
(a) repeat units (RPEEK) are repeat units of formula:

OG Complex Work Unit Chemistry
and
(b) repeat units (RPEoEK) are repeat units of formula (B):

OG Complex Work Unit Chemistry
wherein:
the PEEK-PEoEK copolymer comprises the repeat units RPEEK and RPEoEK in a molar ratio RPEEK/RPEoEK ranging from 95/5 to 5/95; and
wherein the PEEK-PEoEK copolymer has a phosphorous content of at least 6 ppm, as measured by Inductively Coupled Plasma Emission Spectrometry (ICP-OES) calibrated with standards of known phosphorous content.