Resins for printing inks

Details Resins for printing inks Resins for printing inks

1979-03-19

1980-12-30

Griffin, Ronald W.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 27, 106 32, 260DIG38, 526308, C08F27902, C09D 3733, C09D 1110

Patent

active

042422442

ABSTRACT:
A carboxyl modified, metal-free petroleum resin comprising a resin obtained by thermal polymerization of a feed containing cyclopentadiene and/or methylcyclopentadiene and/or their dimers or codimers having been reacted electrophilically with a saturated or ethylenically unsaturated higher fatty acid, said modified resin having an acid number less than 20, containing from 1 wt. % to 5 wt. % of oxygen and having a softening point of from 120.degree. C. to 200.degree. C.
These resins may be prepared by heating a resin obtained by thermal polymerization of a feed containing the aforesaid cyclopentadiene and/or methylcyclopentadiene and/or derivatives thereof with said carboxylic acid to a temperature in the range of 200.degree. C. to 270.degree. C. and subsequently removing free acid to reduce the acid number to below 20.

REFERENCES:
patent: 3984381 (1976-10-01), Tsuchiya et al.
patent: 4002585 (1977-01-01), Oishi et al.
patent: 4028291 (1977-06-01), Tsuchiya et al.
patent: 4048132 (1977-09-01), Tsuchiya et al.
patent: 4056498 (1977-11-01), Laurito
patent: 4087483 (1978-05-01), Geerdes

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