Printing ink composition
AssigneeNippon Oil Co., Ltd.
InventorsShozo Tsuchiya, Hideo Hayashi, Akio Oshima
Life of this patent
Estimating the term…
Abstract
Printing ink composition characterized by containing as a vehicle a resin having a softening point of 100.degree. C. or more and acid value of 5 to 50, said resin being obtained by reacting the following three components A, B and C, i.e., cyclopentadiene, dicyclopentadiene or their alkyl substituted derivatives as the A component an .alpha.,.beta.-unsaturated monocarboxylic acid as the B component and alkyl esters of said monocarboxylic acid as the C component, in proportions of such amounts as to satisfy the following formulae, ##EQU1## at a temperature in the range of 150.degree. - 350.degree. C. in the absence of a catalyst.
Claims12
Printing ink composition characterized by containing as a vehicle a resin having a softening point of 100.degree. C. or more and an acid value of 5 to 50, said resin being obtained by reacting the following three components A, B and C, i.e.,
- A component:
- at least one compound selected from the group consisting of cyclopentadiene, dicyclopentadiene and their C.sub.1 -C.sub.6 alkyl-substituted derivatives;
- B component:
- at least one .alpha.,.beta.-unsaturated monocarboxylic acid selected from the group consisting of acrylic acid and methacrylic acid;
- C component:
- at least one alkyl ester of said .alpha.,.beta.-unsaturated monocarboxylic acid as the B component with the proviso that the number of carbon atoms of said alkyl group is from 1 to 22;
- in proportions of such amounts as to satisfy the following formulae (1) and (2), ##STR3## at a temperature in the range of 150.degree.-350.degree. C. in the absence of a catalyst.
Dependencies are inferred from the claim text.