Patent · US Active

Fluorinated block copolymers

US11261280B2 · kind B2 · utility

0Cited by

25References

19Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Michael H. Mitchell · Edina, US
Denis Duchesne · Woodbury, US
Tatsuo Fukushi · Woodbury, US
Larry A. Last · Decatur, US
Peter J. Scott · Madison, US
Karl D. Weilandt · Minneapolis, US

Key dates

Filing date	Jan 12, 2018
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Nov 27, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2438/01
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Described herein is a millable fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least TFE, HFP and VDF; (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units derived from at least HFP and VDF; and (c) a bisolefin monomer, wherein at least (i) the semi-crystalline segment of the A block comprises repeating divalent monomeric units derived from TFE, HFP, VDF, and the bisolefin monomer, (ii) the segment of the B block comprises repeating divalent monomeric units derived from HFP, VDF, and the bisolefin monomer, or (iii) a combination thereof; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100° C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.