190993

Poly(4-methyl-1-pentene)

medium molecular weight

• Linear Formula: (CH₂CH[CH₂CH(CH₃)₂])_n
• CAS Number: 25068-26-2
• MDL number: MFCD00084382
• UNSPSC Code: 12162002
• PubChem Substance ID: 24851464
• NACRES: NA.23

Properties

• Quality Level: 100
• form: solid
• melt index: 26 g/10 min (260°C/5kg)
• impact strength: 3 kg.cm/cm² (Izod, ASTM D 256)
• dielectric constant: 2.12, 100 MHz (ASTM D 150)
• hardness: 80 (Rockwell R, ASTM D 758)
• refractive index: n20/D 1.463
• mp: 235 °C
• transition temp: softening point 178 °C (Vicat, ASTM D 1525)
• density: 0.835 g/mL at 25 °C
• SMILES string: CC(C)CC=C
• InChI: 1S/C6H12/c1-4-5-6(2)3/h4,6H,1,5H2,2-3H3
• InChI key: WSSSPWUEQFSQQG-UHFFFAOYSA-N

Description

Application

Coating for paper food containers for microwave and conventional ovens. Release coatings for food and synthetic leather. Molded into medical labware. Film for decorative laminates and printed circuit boards.

Features and Benefits

Very low specific gravity, high transparency, resistant to oxidation and prone to stress cracking. Good electrical insulator.

Physical form

Crystalline, isotactic.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves