Process for manufacturing a petroleum resin
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorsToru Iwashita, Mineo Nagano, Koji Tanaka
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Abstract
The present invention relates to a process for manufacturing a petroleum resin wherein a fraction (component A) containing an aromatic hydrocarbon obtained by cracking of petroleum and a thermally polymerized oil (component B) obtained by previously thermal-polymerizing the component A are mixed and then the mixture of the components A and B is subjected to polymerization by employing a Friedel-Crafts catalyst. It is also directed to propose a petroleum resin of a superior quality having a softening point optionally in a range of 30.degree.-120.degree. C. and various bromine value in such a manner that a mixing ratio of the components A and B is properly adjusted.
Claims4
A process for manufacturing a petroleum resin comprising mixing ( 1) a fraction (component A) containing an aromatic hydrocarbon and obtained by the cracking of petroleum and having a boiling point in the range of 140.degree.-280.degree. C. and (2) a thermally polymerized oil (component B) which is a product obtained by polymerizing component A at a temperature of 180.degree.-300.degree. C. for a period of from 10 minutes to 10 hours, the amount of component B being from 1-99% by weight of the mixture;
- and subjecting said mixture of component A and component B to polymerization employing a Friedel-Crafts catalyst to obtain a petroleum resin having a softening point in the range of 50.degree.-120.degree. C.
Dependencies are inferred from the claim text.