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Nipol ® NBR Elastomers

Cold Elastomers

The present generation of Nipol NBR elastomers spans a wide variety of compositions. Acrylonitrile contents range from 19% to 51% of actual polymer content and Mooney values range from a very tough 100 to pourable liquids. A Mooney viscosity of twenty two is the lowest practical limit for our solid material. Within the normal polymerization temperature range used for making cold Nipol NBR, the lower temperature yield more linear linear polymer chains. Cold Nipol NBR's can present the compounder with significant processing benefits, because linear polymer chains are less viscous and can therefore disentangle themselves more easily than highly branched hot varieties. This increased mobility requires much less force to process the stock. The results are lower process temperatures and lower power consumption. The linearity also contributes to the cold Nipol NBR easily incorporating fillers and plasticizer and is a benefit for transfer and injection molding and highly filled extrusions.

 

Product
Grade 		% ACN Mooney
Viscosity 		Specific
Gravity 		AO
Type 		Special Properties/Applications
1000x132 51 45-65 1.02 SS Ultra-high-ACN level for maximum oil and fuel resistance and low gas permeability. FDA 175.105 and 177.26 clearance.
DN003 50 73-83 1.02 SS Very-high-ACN level for excellent resistance to oils and fuels. Low fuel permeability. FDA None.
DN4580 45 73-87 1 NS High ACN for balance of low temperature, fuel resistance and low fuel permeability. FDA 175.105 and 177.26 clearance.
DN4555 45 48-63 1 NS High ACN for balance of low temperature, fuel resistance and low fuel permeability.FDA 175.105 and 177.26 clearance.
1041 41 75-90 1 NS Polymerized at low temperatures to give better processing. Provides good tack for rolls and belting. FDA 175.105 and 177.26 clearance.
1051 41 60-75 1 NS Easy-processing version of Nipol 1041 with similar properties. Widely used in the petroleum industry. FDA 175.105 and 177.26 clearance.
1031 41 55-70 1 NS Excellent fuel and water resistance. Very low corrosion to metals. FDA 175.105 and 177.26 clearance.
DN4080 40 73-88 1 NS Low mold fouling, fast curing and easy processing. High oil and fuel resistance. FDA 175.105 and 177.26 clearance.
N21  40 77.5-87.5 1 NS Nipol N21 is a copolymer of butadiene and acrylonitrile with very high oil resistance. Sufficient antioxidant is added during manufacture for normal storage conditions.
N21L 40 58-68 1 NS Special-purpose, intermediate-Mooney-viscosity nitrile rubber. Combines excellent physical properties and processability with very high oil resistance. Recommended for oilfield parts and other applications requiring high oil resistance. FDA 175.105 and 177.26 clearance.
DN4050 40 45-60 1 NS Low mold fouling, fast curing and easy processing. High oil and fuel resistance. FDA 175.105 and 177.26 clearance.
DN3650 36 45-55 0.98 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
DN3635 36 30-40 0.98 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
1042 33 75-90 0.98 NS General-purpose, high-Mooney-viscosity nitrile rubber. Combines exceptional physical properties and outstanding oil resistance. Recommended for critical industrial and automotive extruded goods. Well-suited for graphic arts rolls and other rubber products requiring high durability. FDA 175.105 and 177.26 clearance.
DN3380 33 75-85 0.98 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
N31 33 73-83 0.98 NS General-purpose, high-Mooney-viscocity, nitrile rubber. FDA 175.105 and 177.26 clearance.
DN214 33 70-85 0.98 NS Precrosslinked to give low die swell and nerve to extruded goods. May be blended with other polymers to improve extrusion. FDA none.
1032 33 55-70 0.98 NS Excellent water resistance with very low metal corrosion. Very good building tack. FDA applications. FDA 175.105 and 177.26 clearance.
1052 33 45-60 0.98 NS Excellent general-purpose nitrile. Provides exceptional processing and blending with other polymers. FDA 175.105 and 177.26 clearance.
DN3350 33 45-55 0.98 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
N32 33 41-51 0.98 NS General-purpose, low-Mooney-viscosity nitrile rubber. FDA 175.105 and 177.26 clearance.
1032-45 33 40-55 0.98 NS Slightly lower Mooney grade of Nipol 1032. FDA 175.105 and 177.26 clearance.
DN3335 33 30-40 0.98 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
1052-30 33 25-40 0.98 NS Low-Mooney version of Nipol 1052. FDA 175.105 and 177.26 clearance.
DN219 33 22-32 0.98 NS General-purpose, low-Mooney-viscosity nitrile rubber. Designed for injection molding and resistance to mold fouling. FDA 175.105 and 177.26 clearance.
1092-80 32 70-85 0.98 NS Provides a good blend of tack, physical properties and water resistance. FDA 175.105 and 177.26 clearance.
DN202M 31 58-68 0.98 NS General-purpose, intermediate-Mooney-viscosity nitrile rubber for industrial and automotive hoses and seals, printing rolls and applications requiring easy processing. FDA 175.105 and 177.26 clearance.
N41 29 73-83 0.97 NS General purpose, high-viscosity, nitrile rubber recommended for applications requiring improved physical properties, such as footwear, hose jackets, belt covers, etc.
1053 29 45-60 0.97 NS Used where low temperature and good mold flow are required. Easier processing than Nipol 1043. FDA 175.105 and 177.26 clearance.
DN2880 28 75-85 0.97 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
DN302H 28 73-83 0.97 NS General-purpose, low-ACN, high-Mooney-viscosity NBR. FDA 177.105 and 177.26 clearance.
DN302 28 58-68 0.97 NS General-purpose, low-ACN, high-Mooney-viscosity NBR. FDA 177.105 and 177.26 clearance.
DN2850 28 45-55 0.97 NS Low mold fouling, fast curing and easy processing. Good balance of low-temperature flex and solvent resistance. FDA 175.105 and 177.26 clearance.
N917 23 55-70 0.95 SS Medium-high viscosity for compression/transfer molding. Special grade for molded goods, hose and belts requiring oil resistance and operating service of +125°C to -50°C. High resilience. Low water swell. FDA none.
1094-80 22 65-80 0.95 NS Low-temperature resistance with outstanding physical properties. FDA 175.105 & 177.26 clearance.
1034-60 21 55-70 0.95 SS Provides low temperature and very good water resistance. FDA 175.105 and 177.26 clearance.
DN401L 19 60-70 0.94 NS Very good low-temperature flexibility and good processing properties. Higher viscosity version of Nipol DN401LL. FDA 175.105 and 177.26 clearance.
DN401LL 19 32-44 0.94 NS Very good low-temperature flexibility and low viscosity for superior processing properties. FDA 175.105 and 177.26 clearance.

Nipol Specialty Elastomers

Preplasticized Nipol 1082V has found a primary niche market for making soft 15 to 35 Shore A printing rolls and other low hardness calendered and molded goods. Carboxylated Nipol NX775 is used in high abrasion applications, such as hose covers, oil well drilling parts, high modulus wear seals and premium footwear soles.

Nipol Cold Elastomers

The present generation of cold Nipol NBR elastomers spans a wide variety of compositions. Acrylonitrile contents range from 19% to 51%. Mooney values for bale Nipols range from a tough 110 to pourable liquids.

Nipol Hot Elastomers

Hot polymerized Nipol elastomers are highly branched and are excellent for thin walled or complex extrusions. They are also ideal for solvent-based adhesives. The combination of low gel content and high degree of branching encourages good tack and a strong bond.
 
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