US 11,667,806 B2
Low VOC and high solid fluoropolymer for coating applications
Wanchao Jiang, Shanghai (CN); Rajiv Ratna Singh, Morris Plains, NJ (US); Gang Xu, Shanghai (CN); Siyuan Zhang, Shanghai (CN); and Yun Lin, Shanghai (CN)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Sep. 6, 2021, as Appl. No. 17/467,320.
Application 17/467,320 is a division of application No. 15/506,979, granted, now 11,111,405, previously published as PCT/US2015/049250, filed on Sep. 9, 2015.
Claims priority of provisional application 62/047,959, filed on Sep. 9, 2014.
Prior Publication US 2022/0041884 A1, Feb. 10, 2022
Int. Cl. C09D 127/12 (2006.01); G06Q 40/12 (2023.01); B05D 3/00 (2006.01)
CPC C09D 127/12 (2013.01) [B05D 3/007 (2013.01); G06Q 40/123 (2013.12)] 7 Claims
 
1. A coating composition comprising:
(i) one or more fluorocopolymers formed by copolymerization of monomers comprising:
(1) from about 45 mol % to about 55 mol % of HFO-1234ze, (2A) from about 10 mol % to about 20 mol % of vinyl ester represented by the formula CH2═CR1—O(C═O)xR2, wherein x is 1, R1 is hydrogen and R2 is an unsubstituted branched-chain alkyl group having 6 to 8 carbon atoms, wherein said alkyl group includes at least one tertiary or one quaternary carbon atom,
(2B) from about 10 mol % to about 20 mol % of vinyl ether represented by formula CH2═CR3—OR4, wherein R3 is hydrogen, R4 is an unsubstituted straight-chain alkyl group having 1 to 3 carbon atoms, and
(3) from about 3 mol % to about 30 mol % of hydroxyalkyl vinyl ether represented by the formula CH2═CR3—O—R5—OH, where R3 is hydrogen and R5 is a C2 to C12 unsubstituted straight-chain, branched-chain or alicyclic alkyl group; and
(ii) a carrier for said one or more fluorocopolymers, wherein said carrier comprises volatile organic compounds (VOCs),
wherein said coating composition comprises: (a) at least about 70% by weight of said one or more fluorocopolymers; (b) not greater than about 30% by weight of said carrier; (c) a volatile organic compound content of less than about 400 g/l; and (d) a viscosity of less than about 1900 mPa·s as measured by Ford Cup of at least 12 revolutions per minute (r/m).