US 12,338,341 B2
Infrared-cut filter
Yuichiro Kubo, Tokyo (JP); and Katsuhide Shimmo, Kanagawa (JP)
Assigned to NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo (JP)
Filed by Nippon Sheet Glass Company, Limited, Tokyo (JP)
Filed on Dec. 4, 2023, as Appl. No. 18/528,216.
Application 18/528,216 is a continuation of application No. 16/921,627, filed on Jul. 6, 2020, granted, now 11,873,385.
Application 16/921,627 is a continuation of application No. 15/762,182, granted, now 10,745,541, issued on Aug. 18, 2020, previously published as PCT/JP2016/004163, filed on Sep. 13, 2016.
Claims priority of application No. 2015-187295 (JP), filed on Sep. 24, 2015.
Prior Publication US 2024/0117151 A1, Apr. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08K 5/521 (2006.01); C08K 5/5317 (2006.01); G02B 5/20 (2006.01); G02B 5/22 (2006.01); G03B 11/00 (2021.01); C08K 3/32 (2006.01)
CPC C08K 5/5317 (2013.01) [C08K 5/521 (2013.01); G02B 5/208 (2013.01); G02B 5/22 (2013.01); G02B 5/223 (2013.01); G03B 11/00 (2013.01); C08K 3/32 (2013.01); C08K 2003/329 (2013.01); C08K 2201/003 (2013.01); C08K 2201/005 (2013.01); C08K 2201/011 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A composition comprising:
a compound including a copper ion and a phosphonic acid represented by following formula (a);
a phosphoric acid ester including at least one selected from the group consisting of a phosphoric acid diester represented by following formula (b1) and a phosphoric acid monoester represented by following formula (b2);
a phosphoric acid; and
a curable resin,

OG Complex Work Unit Chemistry
where R1 is an alkyl group with 2 to 4 carbon atoms, R21, R22 and R3 are each a monovalent functional group represented by —(CH2CH2)nR4, n is an integer of 1 to 25, R4 is an alkyl group with 6 to 25 carbon atoms, and R21, R22 and R3 are same or different group,
wherein a ratio of a content of the phosphoric acid to a content of the copper ion is 0.04 to 0.21 on a molar basis,
wherein a ratio Ca/Cc of a content of the phosphonic acid to a total content of the phosphoric acid ester is 2.5 or less on a molar basis, and
wherein a ratio of a total content of a phosphorus atom to a content of the copper ion is 1.29 to 1.51 on a molar basis.