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US 2016/0237314 A1Published application
Rosin Esters and Compositions Thereof
AssigneeArizona Chemical Company
InventorsPaul A. Williams, Lloyd A. Nelson
Life of this patent
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AssigneeArizona Chemical Company
InventorsPaul A. Williams, Lloyd A. Nelson
Estimating the term…
Rosin esters are provided. The rosin esters can exhibit improved color (e.g., the rosin ester can have a neat Gardner color of 8.5 or less), improved oxidative stability (e.g., when 1000 ppm or less of an antioxidant is present in combination with the rosin ester, the rosin ester can exhibit an oxidative-induction time at 130° C. of at least 75 minutes), improved color stability (e.g., the rosin ester can exhibit less than a 10% change in neat Gardner color when heated to a temperature of 160° C. for a period of three hours), or combinations thereof. Also provided polymeric compositions comprising the rosin esters, as well as methods of making the rosin esters.
A rosin ester comprising at least 70% by Weight of an esterified dehydroabietic acid and an esterified dihydroabietic acid, wherein, when 1000 ppm or less of an antioxidant is present in combination with the rosin ester, the rosin ester exhibits an oxidative-induction time at 130° C. of at least 75 minutes, as measured using the methods specified in ASTM D5483-05(2010).
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A rosin ester comprising at least 70% by weight of an esterified dehydroabietic acid and an esterified dihydroabietic acid,
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A composition comprising
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Dependencies are inferred from the claim text.