Process for producing hydrocarbon resins having improved color a

Details Process for producing hydrocarbon resins having improved color a Process for producing hydrocarbon resins having improved color a

1978-12-26

1980-10-28

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526290, C08F24000

Patent

active

042308402

ABSTRACT:
A process for producing a hydrocarbon resin having improved color and thermal stability, which comprises treating a petroleum cracking or reforming fraction containing cationically polymerizable hydrocarbons and not more than 0.7% by weight, based on the fraction, of cyclopentadienes and having a boiling range of from 140.degree. C. to 280.degree. C., with 0.8 to 3.0 moles, per mole of the cyclopentadienes, of a dienophile compound having a carbon-to-carbon double bond and a carbonyl or cyano group adjacent to the double bond; and then polymerizing the treated petroleum fraction in the presence of a polymerization catalyst.

REFERENCES:
patent: 2770613 (1956-11-01), Tegge et al.
patent: 2798865 (1957-07-01), Banes et al.
patent: 2946775 (1960-07-01), de Vries et al.
patent: 3855187 (1974-12-01), Winkler et al.
patent: 3911040 (1975-07-01), Shelton et al.
patent: 4072808 (1978-02-01), Lakshmanan et al.
patent: 4105843 (1978-08-01), Iwase et al.

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