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DPR DPR ® ® Liquid Natural Rubber
DPRDPR®®
Liquid NaturalRubber
DPR Liquid Natural RubberDPR Liquid Natural Rubber
Low-molecular-weight natural rubber– Natural rubber mw, 1-2 million
– DPR® mw, <100,000
Liquid at room temperature
Vulcanizes with rubber curatives
Four viscosity grades
Major ApplicationsMajor Applications
Rubber processing Reactive plasticizer Vehicle for additives and curatives
Binder Grinding wheels Friction products
Sealants Automotive subassembly Wire and cable blocking compounds
Formulating FeaturesFormulating Features
Liquids that behave like plasticizers– Higher molecular weight than ordinary plasticizer
Reactive– Cure with a variety of mechanisms and conditions
– Become part of the base rubber network
Compounding ValueCompounding Value
More permanent plasticizer in non-cured systems
Non-extractable in vulcanized compounds– Higher filler loadings
– Processable, high durometer stocks
Convenient PackagingConvenient Packaging
Drums
Pails
Low Melt Bags
