Patent ID: 11897984
Assignee: KEMIRA OYJ
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The polymer composition of claim 1, wherein (a) the first monomer comprises the compound of Formula (I), wherein:
(i) R1, R2, R4, R5, R7, R8, R10 are hydrogen, R3 and R6 are hydroxyl, R9 is an unsubstituted C1 alkyl, y is a double bond, and the first monomer is 3′,6′-dihydroxy-3-methyl-5H-spiro[furan-2,9′-xanthen]-5-one, a salt, a hydrate, a salt hydrate, a stereoisomer, a dehydrate, a tautomer, or a derivative thereof —, or
(ii) R1, R2, R4, R5, R7, R8, R9, and R10 are hydrogen, R3 and R6 are hydroxyl, y is a double bond, and the first monomer is 3′,6′-dihydroxy-5H-spiro[furan-2,9′-xanthen]-5-one, a salt, a hydrate, a salt hydrate, a stereoisomer, a dehydrate, a tautomer, or a derivative thereof—, or
(b) the first monomer is the compound of Formula (II), the compound or isomer of Formula (III), or the compound or isomer of Formula (IV), wherein:
(i) R11, R12, R14, R15, R17, and R18 are hydrogen, R13 and R16 are hydroxyl, and the first monomer is 9-methylene-9H-xanthene-3,6-diol, a salt, a hydrate, a salt hydrate, a stereoisomer, a dehydrate, a tautomer, or a derivative thereof —, or
(ii) R19, R20, R21, R23, R24, R25, R26, R28, R29, and R30 are hydrogen, R22 and R27 are hydroxyl, R31 is an unsubstituted C1 alkyl, z is a double bond, R32 is hydrogen, and the first monomer is 3,11-dihydroxy-3′-methyl-5′H-spiro[dibenzo[c,h]xanthene-7,2′-furan]-5′-one, a salt, a hydrate, a salt hydrate, a stereoisomer, a dehydrate, a tautomer, or a derivative thereof—, or
(iii) R33, R34, R35, R37, R38, R39, R40, R42, R43, and R44, are hydrogen, R36 and R41 are hydroxyl, and the compound is 7-methylene-7H-dibenzo[c,h]xanthene-3,11-diol, a salt, a hydrate, a salt hydrate, a stereoisomer, a dehydrate, a tautomer, or a derivative thereof —,