Bomar Specialties Company UV/EB Curing Advanced Performance Oligomers

Properties of Bomar Specialties Co. BR-600 Series Oligomer Products

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BR-600
Series Oligomers

Polybutadiene urethane acrylates (PBDUA). Designed to meet rigorous electronic applications, PBDUAs have many desirable properties typical of PBD resins, combined with radiation curability via UV/EB. Recommended for applications requiring low moisture pickup, thermal cycling resistance, and high dielectric constant.

 Polybutadiene Urethane Acrylates (PBDUA)
OLIGOMER PROPERTIES FORMULATED PROPERTIES IN 30% IBOA
2% Omnirad 481
f Oligomer
Type		 MW Neat
Oligomer Viscosity		 Tg*
(°C)		 Viscosity
cP @25°C		 Tensile
Strength, psi		 Elong. %
at break		 Durometer
(hardness)
BR-641 2Aliphatic Med62,000 cP
@50°C		 -3018885 303036 85D BR-641 Aliphatic Oligomer - Hydrolytic Stability BR-641 Aliphatic Oligomer - Oil & Chemical Resistance BR-641 Aliphatic Oligomer - Weatherability   BR-641 Aliphatic Oligomer - Adhesion BR-641 Aliphatic Oligomer - Gloss
BR-643 2Aliphatic Med65,000 cP
@50°C		 -1615250 112057 84A BR-643 Aliphatic Oligomer - Hydrolytic Stability BR-643 Aliphatic Oligomer - Oil & Chemical Resistance     BR-643 Aliphatic Oligomer - Adhesion BR-643 Aliphatic Oligomer - Gloss

 

f = (meth)acrylate functionality
*Glass transition temperature measured by DMA, peak tan delta.

MOLECULAR WEIGHT
Low:  less than 2000 glmol    MED:  2000-4000 glmol    HIGH:  greater than 4000 glmol

REGISTER to download Bomar Specialties One Focus New & Unique Oligomers 2008 Product Guide. This guide features property tables to assist formulators in oligomer selection.

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