Title: Decolouring and crystallization inhibiting of rosin
Application Number: 85102451 Application Date: 1985.04.01
Publication Number: 1002475 Publication Date: 1986.08.20
Approval Pub. Date: Granted Pub. Date: 1988.01.27
International Classifi-cation: C09F1/00,C09F1/02
Applicant(s) Name: Wu Yixiong Address:
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The present invention not only improved the colour of rosin by 1-5 red colour index number, but also inhibits effectively the crystallization of rosin. A reduction of 50-80% of crystallization degree of the raw rosin can be obtained by adding 0.0015-0.017% (wt.) sulfur in raw rosin and stirring 5-15 min. at 160-200 deg.C, then standing still for 2-3 min.
Time: 10
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