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Evonik Corporation DYNACOLL® 7321 Copolyester

Category Polymer , Thermoset , Polyester, TS
Manufacturer Evonik Corporation
Trade Name DYNACOLL®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Evonik Corporation DYNACOLL® 7321 Copolyester.pdf
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Material Notes:
DYNACOLL® 7000 products are linear copolyesters with primary hydroxyl functionality and medium molecular weight. Our DYNACOLL® 7000 product line is designed as a building block system, allowing the tailormade production of reactive hot melts (RHM). The 7300 series is a crystalline
Physical Properties Metric English Comments
Density 1.20 g/cc

@Temperature 23.0 °C
0.0434 lb/in³

@Temperature 73.4 °F
Viscosity 3000 cP

@Temperature 130 °C
3000 cP

@Temperature 266 °F
Molecular Weight 3500 g/mol
3500 g/mol
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 35.0 MPa
5080 psi
with MDI; OH:NCO=1:2.18
Elongation at Break 400 %
400 %
with MDI; OH:NCO=1:2.18
Thermal Properties Metric English Comments
Melting Point 123 °C
253 °F
Softening Point 128 °C
262 °F
Glass Transition Temp, Tg -25.0 °C
-13.0 °F
Flash Point >= 300 °C
>= 572 °F
Chemical Properties Metric English Comments
Total Acid Number <= 2.0
<= 2.0
[mg KOH/g]
Descriptive Properties Value Comments
Hydroxyl Number (mg KOH/g) 27-34
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