428191
Poly(ethylene-co-propylene)
average Mw ~9,500, average Mn ~2,900 (GPC vs. polyethylene stds.)
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About This Item
Linear Formula:
[CH2CH(CH3)]X(CH2CH2)Y
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
MDL number:
InChI
1S/C3H6.C2H4/c1-3-2;1-2/h3H,1H2,2H3;1-2H2
SMILES string
C=C.CC=C
InChI key
HQQADJVZYDDRJT-UHFFFAOYSA-N
mol wt
average Mn ~2,900 (GPC vs. polyethylene stds.), average Mw ~9,500
hardness
>100 dmm (Penetrometer, ASTM D 5)
viscosity
3 poise(190 °C, Brookfield Thermosel)(lit.)
transition temp
Tg −33 °C, softening point 120 °C (ring and ball, ASTM E 28)
density
0.9 g/mL at 25 °C (lit.)
Application
Base polymer in hot melt adhesives and paper-laminating, extender and viscosity modifier in caulks and sealants and waterproofing agent in wire and cable applications.
Features and Benefits
Low odor, good heat stability, low color and broad compatibility with elastomers, plastics and tackifying resins.
Physical form
Amorphous copolymer.
Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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