CR
Chloroprene Rubber (Neoprene)
Glass Transition (Tg)
-45 °C
Melting Point (Tm)
—
Density
1.23 g/cm³
CAS Number
9010-98-4
Recycling Code
None
Category
Elastomer
Repeat Unit
–[CH₂–CCl=CH–CH₂]ₙ–
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
Rare balance of moderate oil, ozone, weather and flame resistance; chlorine provides inherent flame retardancy.
Applications
Wetsuits, bridge bearings, transmission belts, adhesives.