Description

Poly(4-Methyl-1-Pentene) (CAS NO 25068-26-2) is a high-performance, semi-crystalline polyolefin known for its exceptional optical clarity, high melting point, and excellent chemical resistance. This polymer is valued for its unique combination of properties, including low density, high gas permeability, and outstanding electrical insulation. It serves as a critical material for specialized applications in the medical, laboratory, and high-frequency electrical industries where transparency and thermal stability are paramount.

Application

• Manufacturing of high-clarity laboratory ware and medical devices requiring autoclavability.
• Production of specialized films and membranes for gas separation processes.
• Component in high-frequency electrical insulators and coaxial cable insulation.
• Material for microwave-transparent components and lenses due to its low dielectric constant.
• Use in chemical-resistant containers and linings for handling aggressive solvents.
• Applications in release films and heat-resistant packaging materials.
• Potential use in advanced composites and polymer blends to modify properties.

Basic Information

Product Name	Poly(4-Methyl-1-Pentene)
CAS No.	25068-26-2
Molecular Formula	(C6H12)n
Molecular Weight	Contact for details
Synonyms	Poly(4-methylpent-1-ene); Poly(4-methyl-1-pentene); PMP; TPX™ (Mitsui Chemicals trade name); Polymethylpentene; Poly(1-pentene, 4-methyl-); 4-Methyl-1-pentene polymer; 4-Methylpent-1-ene homopolymer
EINECS	246-622-5

Quality Control

Our Poly(4-Methyl-1-Pentene) is manufactured under stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Product specifications are controlled through advanced analytical techniques including Gel Permeation Chromatography (GPC), Differential Scanning Calorimetry (DSC), and FTIR spectroscopy. Certificates of Analysis (COA) detailing key parameters such as melt flow rate, density, and thermal properties are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to maintain polymer integrity.

Specification

Item	Specification
Appearance	White translucent pellets or powder
Identification (IR)	Conforms to structure
Melting Point (DSC)	~235 °C
Density	0.83 - 0.84 g/cm³
Melt Flow Rate (MFR)	Contact for details
Light Transmittance	> 90 %
Ash Content	< 0.05 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.