The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1994
Filed:
May. 25, 1993
Theodore J Williams, Panama City, FL (US);
Arizona Chemical Company, Panama City, FL (US);
Abstract
A method for bleaching hydrocarbon tackifier resins which comprises adding a bleaching agent to a molten resin and recovering a bleached hydrocarbon tackifier resin. The bleaching agent comprises from about 0.04 wt. % to about 0.06 wt. %, based on the weight of the reaction mixture, of an iodine supplying compound and from about 2.0 wt. % to about 10.0 wt. %, based on the weight of the reaction mixture, of an activating terpene compound. The iodine supplying compound is selected from the group consisting of elemental iodine and hydrogen iodide. The activating compound is selected from the group consisting of .alpha.-terpinene, .gamma.-terpinene, d-limonene, 1,4-cyclohexadiene and abietic acid.