Polymers & Resins
REACH
Polypropylene
CAS Number
9003-07-0
EC Number
618-352-4
Abbreviation
PP
What is Polypropylene?
Polypropylene (CAS 9003-07-0), commonly abbreviated as PP and approved as E1130, is a thermoplastic polymer produced from propylene monomer.
Where is Polypropylene used?
- Packaging: rigid containers, caps, closures, and oriented films for food and consumer goods
- Automotive: bumpers, interior trim, and under-hood components
- Textiles: nonwoven fabrics for hygiene products, geotextiles, and industrial filtration media
- Construction: pipes, fittings, and roofing membranes
- Its processability and chemical resistance drive material selection decisions.
Good to know: Standard commercial grades include homopolymer, random copolymer, and impact copolymer, each targeting different stiffness and toughness profiles. Food-contact and medical grades meet FDA, EU, and pharmacopeial compliance requirements.
Commercial specifications
- CAS 9003-07-0
- E1130
- Grades: homopolymer, random copolymer, impact copolymer
- Compliance: FDA, EU, USP, Ph. Eur., BP, EP, FCC
Other Names (Synonyms)
1-Propene, homopolymer|Polypropylene Fiber|PP|E1130
What are the physical properties of Polypropylene?
Melting Point 165 °C (approx)
Boiling Point 215-270 °C
Density 7.9 g/cm³ (solid) (fibers)
Flash Point >470
Appearance Translucent, white solid.Tensile strength 5000 psi, flexural strength 7000 psi, usable up to 121C. Insoluble in cold organic solvents; softened by hot solvents. Maintains strength after repeated flexing. Degraded by heat and light unless protected by antioxidants. Readily colored; good electrical resistance; low water absorption and moisture permeability; poor impact strength below ?9.4C; not attacked by fungi or bacteria; resists strong acids and alkalies up to 60C, but is attacked by chlorine, fuming nitric acid, and other strong oxidizing agents. Combustible, but slow-burning. Fair abrasion and good heat resis- tance if properly modified. Can be chrome-plated, injectionand blow-molded, and extruded.
Color red
Odor odorless
Form particles (Spherical)
Refractive Index n 20/D 1.49(lit.)
Which trade and regulatory codes apply to Polypropylene?
HS Code 39021000
Storage Class 11 - Combustible Solids
WGK (Germany) 3