Fluorinated compound, curable composition and cured product

Patent metadata

Field	Value
Publication number	US-10457756-B2
Application number	US-201715818095-A
Country	US
Kind code	B2
Filing date	Nov 20, 2017
Priority date	Jul 30, 2015
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

To provide a fluorinated compound capable of obtaining a cured product which is excellent in heat resistance and mold release and has a high Abbe number; a curable composition containing such a compound; and a cured product which is excellent in heat resistance and mold release and has a high Abbe number. The fluorinated compound is represented by the following formula (A):

[Z—OCH 2 CF 2 CF 2 CF 2 OCFHCF 2 —X—] n Q  (A)

where n is an integer of at least 1 , Q is a n-valent organic group, X is —O—, —NH— or —S—, and Z is a group having at least one polymerizable functional group.

First claim

What is claimed is:

1. A fluorinated compound represented by the following formula (A):
[Z—OCH 2 CF 2 CF 2 CF 2 OCFHCF 2 —X—] n Q  (A)

where n is an integer of from 2 to 6, Q is a n-valent organic group, X is —O—, —NH— or —S—, and Z is a group having at least one polymerizable functional group.

2. The fluorinated compound according to claim 1 , wherein Q is a n-valent hydrocarbon group, or a group having at least one etheric oxygen atom between carbon atoms in an n-valent hydrocarbon group.

3. The fluorinated compound according to claim 2 , wherein the number of carbon atoms in Q is from 2 to 24, and in a case where Q has etheric oxygen atom(s) between carbon atoms, the number of such etheric oxygen atom(s) is 1 or 2.

4. The fluorinated compound according to claim 1 , wherein X is —O—.

5. The fluorinated compound according to claim 1 , wherein the polymerizable functional group is a group having a polymerizable carbon-carbon double bond, or an epoxy group.

6. The fluorinated compound according to claim 5 , wherein the group having a polymerizable carbon-carbon double bond is a (meth)acryloyl group.

7. The fluorinated compound according to claim 1 , wherein Z has —NHC(O)— at the end on the side bonded to the oxygen atom adjacent to Z (provided that the carbon atom in the —NHC(O)— is bonded to the oxygen atom adjacent to Z).

8. The fluorinated compound according to claim 1 , wherein Z is a group represented by the following formula (g1), a group represented by the following formula (g2), a group represented by the following formula (g3) or a group represented by the following formula (g4):
CH 2 ═C(R)—C(O)O—R 1 —NHC(O)—  (g1)

{CH 2 ═C(R)—C(O)O—} 2 R 2 —NHC(O)—  (g2)

CH 2 ═C(R)—C(O)O—R 3 —CH(OH)—CH 2 —  (g3)

Ep-R 4 —  (g4)

where R is a hydrogen atom or a methyl group, R 1 is a C 1-6 alkylene group, or a group having at least one etheric oxygen atom between carbon atoms in a C 2-6 alkylene group, R 2 is a C 1-4 alkanetriyl group, or a group having at least one etheric oxygen atom between carbon atoms in a C 2-4 alkanetriyl group, R 3 is a C 1-5 alkylene group, or a group having at least one etheric oxygen atom between carbon atoms in a C 2-5 alkylene group, R 4 is a C 1-5 alkylene group, or a group having at least one etheric oxygen atom between carbon atoms in a C 2-5 alkylene group, and Ep is an epoxy group.

9. A curable composition comprising at least one fluorinated compound as defined in claim 1 , and a polymerization initiator.

10. The curable composition according to claim 9 , which further contains a compound having at least one polymerizable functional group, but excluding the fluorinated compound.

11. The curable composition according to claim 9 , wherein the polymerization initiator is a photopolymerization initiator.

12. A cured product obtained by curing the curable composition as defined in claim 9 .

Assignees

• Agc Inc

Inventors

• Yoshida Jun
• Takagi Keisuke
• Murofushi Hidenobu
• Sakurada Tomoaki

Classifications

• C08G65/3342

  having sulfur bound to carbon and hydrogen · CPC title

• C08G65/33348

  containing isocyanate group · CPC title

• C08G65/3312

  acyclic · CPC title

• C08F222/225

  the ester chains containing seven or more carbon atoms · CPC title

• C08G65/33306

  acyclic · CPC title