Method for preparing light-colored indene-coumarone resin

Details Method for preparing light-colored indene-coumarone resin Method for preparing light-colored indene-coumarone resin

1988-12-22

1990-08-07

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526267, C08F 414

Patent

active

049469150

ABSTRACT:
A method for preparing a light-colored indene-coumarone resin is here disclosed which comprises the step of polymerizing an aromatic coal fraction raw material having a boiling point of 140.degree. to 240.degree. C. in the presence of a Friedel-Crafts type catalyst in a polymerization reactor in which the amount of oxygen is restricted to 15 ml or less with respect to 100 g of the aromatic coal fraction raw material oil at room temperature. As a raw material, a mixture is also used which is composed of the above-mentioned aromatic coal fraction and a phenol in an amount of 3 to 30 parts by weight with respect to 100 parts by weight of the aromatic coal fraction.

REFERENCES:
patent: 4558107 (1985-12-01), Evans et al.

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