C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 11/10 (2006.01) C08L 77/08 (2006.01) C09D 11/08 (2006.01) C08L 1/10 (2006.01) C08L 33/10 (2006.01)
Patent
CA 2127136
ABSTRACT A flexible packaging printing ink is formulated from a copolymer of polyethyleneneglycol methacrylate and a polyamide resin, pigment, solvent and cellulose acetate butyrate. The polyamide resin is prepared by condensing a dibasic acid mixture with a diamine mixture. The dibasic acid mixture comprises about 0.5 to 0.8 equivalents of a C20-C44 dibasic acid mixture comprised of about 60 to 100 % dimers, 0 to 40 % trimers and 0 to 5% monomers, and about 0.2-0.7 equivalents of at least one C6-C12 dibasic acid such as azelaic acid and adipic acid, while the diamine mixture comprises about 0.5-0.8 equivalents of piperazine or a substituted piperazine and the balance comprises at least one C2-C12 alkyl diamine such as ethylene diamine.
Artusa Gastone
Barreto Sonia
Bosco Jason J.
Catena Robert J.
Kveglis Albert A.
Mccarthy Tetrault Llp
Sun Chemical Corporation
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