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Will the addition of rosin ester improve tack properties of natural rubber-based pressure sensitive adhesives formulated with Eastotac™ H-100R resin?

April 26, 2017addition Ester natural pressure properties rosin rubber-based sensitive tack

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Will the addition of rosin ester improve tack properties of natural rubber-based pressure sensitive adhesives formulated with Eastotac™ H-100R resin?

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While the partial substitution of rosin ester for Eastotac™ H-130R can improve the adhesion properties of polyethylene-based hot melt adhesives, no significant improvement was found using a similar substitution with natural rubber in a toluene system. The addition of rosin ester does not appear to be worthy in formulating natural rubber based adhesives with Eastotac™ resins.