| 摘要 |
1508965 Alkadienoic acids as heat stabilizers for vinyl chloride polymers SOLVAY & CIE 12 Nov 1976 [24 Nov 1975] 47213/75 Heading C3K A heat stabilizer for vinyl chloride polymers contains a primary heat stabilizer and a secondary heat stabilizer comprising an alpha,#-gamma,# alkadienoic acid. Optionally, the secondary heat stabilizer may also contain an alpha-phenyl indole. The primary heat stabilizer is preferably a Ca/Zn soap. In the examples, the alkadienoic acid is sorbic acid, and the optional alpha-phenyl indole is dodecyl-alpha-phenyl indole. |
