Preparation of modified petroleum resins

Details Preparation of modified petroleum resins Preparation of modified petroleum resins

1972-09-19

1976-02-10

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 28, 260 237R, 260 237C, 260 82, 260 931, C08L 9100

Patent

active

039376745

ABSTRACT:
Petroleum resin comprising units of cyclopentadiene, methyl cyclopentadiene or both is reacted at 150.degree.-320.degree.C with an unsaturated fatty acid, such as tall oil fatty acid, in the presence of magnesium oxide or other metal compound for a period of time until a modified resin having a melting point of at least 125.degree.C, preferably 140.degree.-160.degree.C is obtained. The resulting resins are especially useful as binding and thickening agents for printing ink resulting in an ink that dries rapidly and is resistant to rubbing.

REFERENCES:
patent: 2762712 (1956-09-01), Bloch
patent: 2861966 (1958-11-01), Betts
patent: 3084147 (1963-04-01), Wilks
patent: 3230162 (1966-01-01), Gilchrist
"Printing Inks," Ellis, 1940, pp. 135, 143, 153.
"Organic Chemistry," Wertheim, p. 247, 1951.

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