US 12,460,112 B2
Fluoropolymer composition
Alessio Marrani, Lecco (IT); Liubov Chernysheva, Milan (IT); and Mattia Bassi, Milan (IT)
Assigned to SYENSQO SPECIALTY POLYMERS ITALY S.P.A., Bollate (IT)
Appl. No. 18/262,159
Filed by SYENSQO SPECIALTY POLYMERS ITALY S.P.A., Bollate (IT)
PCT Filed Jan. 17, 2022, PCT No. PCT/EP2022/050840
§ 371(c)(1), (2) Date Jul. 19, 2023,
PCT Pub. No. WO2022/157099, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 21152537 (EP), filed on Jan. 20, 2021.
Prior Publication US 2024/0141214 A1, May 2, 2024
Int. Cl. C09J 127/18 (2006.01); B32B 7/12 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 27/28 (2006.01); C09J 5/06 (2006.01); C09J 11/06 (2006.01)
CPC C09J 127/18 (2013.01) [B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 27/281 (2013.01); C09J 5/06 (2013.01); C09J 11/06 (2013.01); B32B 2250/02 (2013.01); B32B 2307/748 (2013.01); C09J 2400/166 (2013.01); C09J 2427/00 (2013.01); C09J 2479/028 (2013.01)] 24 Claims
 
1. A polymeric composition comprising:
a first polymer component C said polymer component being selected from
(ii) a polymer C2 comprising:
from 75 to 99.89% by moles of recurring units derived from tetrafluoroethylene (TFE),
from 0.01 to 5% by moles of recurring units derived from dichlorodifluoroethylene (R1112),
from 0.1 to 10% by moles of recurring units derived from one or more perfluoroalkylvinylether (PAVE),
(iii) a polymer C3 comprising:
from 75 to 99.89% by moles of recurring units derived from tetrafluoroethylene (TFE),
from 0.005 to 5% by moles of recurring units derived from dichlorodifluoroethylene (R1112),
from 0.005 to 5% by moles of recurring units derived from chlorotrifluoroethylene (CTFE),
with the provision that the total molar % of R112 and CTFE does not exceed 5% of the total moles of recurring units in the polymer C3,
from 0.1 to 10% by moles of recurring units derived from one or more perfluoroalkylvinylether (PAVE),
(iv) or mixtures thereof
a second optional polymer component D, said polymer component D not comprising chlorine containing recurring units and comprising:
from 80 to 99.9% by moles of recurring units derived from tetrafluoroethylene (TFE)—from 0.1 to 20% by moles of recurring units derived from one or more perfluoroalkylvinylether (PAVE)
said polymeric composition being further characterized in that it has a total Cl content of from 0.01 to 0.25% by weight.