Denka Neoprene 671A Polychloroprene

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Denka Neoprene 671A Polychloroprene
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Chlorosulfonated Polyethylene Rubber
Material Notes:	DuPont™ Neoprene 671A liquid dispersion contains a high modulus polychloroprene homopolymer made in an anionic colloidal system. Main Features Good wet gel elongation and wet gel tensile strength make wet films of Neoprene 671A resistant to gel cracking, either alone or in blends with other Neoprene liquid dispersions such as Neoprene 571 or Neoprene 842A. Neoprene 671A has a high solids content with a viscosity only slightly greater than that of conventional 50% solids Neoprene liquid dispersions. Coagulant dipping deposition rate is higher than that obtained with 50% solids liquid dispersions. Suggested End Uses Dipped goods Construction mastics Laminating adhesives Extruded thread Impregnated paper Bonded batts Contact bond adhesives Denka Performance Elastomer LLC has acquired the Neoprene product line from DuPont Performance Polymers
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Physical Properties	Metric	English	Comments

Specific Gravity	1.13 g/cc	1.13 g/cc	Liquid Dispersion
	1.23 g/cc	1.23 g/cc	Polymer
Solids Content	59 %	59 %
pH	>= 12 @Temperature 25.0 °C	>= 12 @Temperature 77.0 °F
Brookfield Viscosity	45 cP @Temperature 25.0 °C	45 cP @Temperature 77.0 °F	Model LVF, Spindle No. 1, 30 rpm

Descriptive Properties
Electrolyte Stability	Good
Emulsifying Agent	Potassium Salts
Freeze/Thaw Stability	Not stable
Mechanical Stability	Good
Storage Stability	Good

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PDVC9797 / 170438

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