Patent ID: 11898091
Assignee: CLARIANT INTERNATIONAL LTD
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 14:
15. The method according to claim 1, wherein the structure of the linking moiety L corresponds to one out of formulae (2) to (12b)

—C(═O)—N(R6)—(CH2)t—  (2)

—N(R7)—C(═O)—(CH2)t—  (3)

—N(R7)—(CH2)2—C(═O)—NH—(CH2)t—  (4)

—N(R7)—C(═O)—(CH2)2—N(R6)—(CH2)t—  (5)

—CH(OH)—CH2—N(R6)—(CH2)t—  (6)

—CH(COOH)—CH2—C(═O)—N(R6)—(CH2)t—  (7a)

—CH(CH2—COOH)—C(═O)—N(R6)—(CH2)t—  (7b)

—CH(COOH)—CH2—C(═O)[O—(CH2)t]v—  (8a)

—CH(CH2—COOH)—C(═O)[O—(CH2)t]v—  (8b)

—N(R7)—C(═O)—(CH2)2—C(═O)—N(R6)—(CH2)t—  (9)

—N(R7)—C(═O)—CH2—CH(OH)—C(═O)—N(R6)—(CH2)t—  (10a)

—N(R7)—C(═O)—CH(OH)—CH2—C(═O)—N(R6)—(CH2)t—  (10b)

—N(R7)—C(═O)—CH(OH)—CH(OH)—C(═O)—N(R6)—(CH2)t—  (11)

—N(R7)—C(═O)—C(OH)(CH2COOH)—CH2—C(═O)—N(R6)—(CH2)t—  (12a)

—N(R7)—C(═O)—CH2—C(OH)(CH(COOH)—C(═O)—N(R6)—(CH2)t—  (12b)

wherein
t is 2, 3 or 4:
v is an integer between 1 and 30
R6 is hydrogen or an alkyl group having from 1 to 5 carbon atoms; and
R7 is hydrogen or an organic moiety having from 1 to 20 carbon atoms.