US 12,391,831 B2
Fluorine-containing polymer, mold release agent composition and mold release method
Hidekazu Uehata, Osaka (JP); and Yasushi Nakamae, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Appl. No. 16/620,991
Filed by Daikin Industries, LTD., Osaka (JP)
PCT Filed Jul. 24, 2018, PCT No. PCT/JP2018/027625
§ 371(c)(1), (2) Date Dec. 10, 2019,
PCT Pub. No. WO2019/022049, PCT Pub. Date Jan. 31, 2019.
Claims priority of application No. 2017-143714 (JP), filed on Jul. 25, 2017.
Prior Publication US 2020/0199276 A1, Jun. 25, 2020
Int. Cl. C08L 101/02 (2006.01); B29C 33/58 (2006.01); B29C 33/62 (2006.01); C08F 220/18 (2006.01); C08F 220/24 (2006.01); C09D 4/00 (2006.01); C09D 5/00 (2006.01); C09D 7/20 (2018.01); C09D 133/16 (2006.01)
CPC C08L 101/02 (2013.01) [B29C 33/58 (2013.01); B29C 33/62 (2013.01); C08F 220/24 (2013.01); C09D 4/00 (2013.01); C09D 5/00 (2013.01); C09D 7/20 (2018.01); C09D 133/16 (2013.01); C08F 220/1818 (2020.02); C08F 2800/20 (2013.01)] 18 Claims
 
1. A fluorine-containing polymer having repeating units derived from:
(a) a fluorine-containing monomer having a perfluoroalkyl group,
(b) a fluorine-free monomer having a hydrocarbon group, and
(c) a fluorine-free monomer having a phosphate group,
wherein
the fluorine-containing monomer (a) is a compound represented by formula:
CH2═C(—X11)—C(═O)—Y11—Y12—Rf,
wherein
X11 is a hydrogen atom, or a methyl group,
Y11 is —O— or —NH—,
Y12 is a direct bond, a divalent aliphatic hydrocarbon group, a divalent aromatic hydrocarbon group, or a divalent cycloaliphatic hydrocarbon group, and
Rf is a perfluoroalkyl group having 6 to 20 carbon atoms,
wherein the hydrocarbon group in the hydrocarbon group-containing fluorine-free monomer (b) has 1 to 40 carbon atoms,
wherein an amount of the fluorine-containing monomer (a) is 35 to 80% by weight, based on the fluorine-containing polymer,
wherein an amount of the hydrocarbon group-containing fluorine-free monomer (b) is 15 to 50% by weight, based on the fluorine-containing polymer,
wherein an amount of the phosphate group-containing fluorine-free monomer (c) is 0.1 to 4% by weight, based on the fluorine-containing polymer,
wherein the fluorine-containing polymer does not comprise a repeating unit derived from a silicon-containing monomer, and
wherein a chain transfer agent is not used in the production of the fluorine-containing polymer.