What is polybutene PIB?
Polyisobutylene (PIB) is the polymer of isobutene, the main component of butyl rubber. One of the most important properties is its solubility in water. This property makes the product group to a universally usable polymer, for a variety of different industrial applications.
What is PIB (CAS 9003-27-4) made of?
Polyisobutylene (PIB, CAS 9003-27-4) is a polymer produced from isobutylene, an olefin monomer, through a cationic polymerization process. It is also commonly referred to as polyisobutene, PIB polymer, or isobutylene polymer in the chemical industry.
PIB is a saturated, linear polymer with a repeating molecular structure of –(CH₂–C(CH₃)₂)– and contains no carbon–carbon double bonds, which contributes to its excellent chemical and oxidative stability.
Based on molecular weight, polyisobutylene polymer can be classified into:
- Low molecular weight PIB (approximately 350–3,500),
- Medium molecular weight PIB (about 10,000–100,000), and
- High molecular weight polyisobutylene (100,000 up to several million).
Depending on the molecular weight, the physical form of PIB resin ranges from viscous liquids to rubber-like elastomers.
Is polyisobutylene (CAS 9003-27-4) used in cosmetics?
Polyisobutylene (PIB) is a very versatile, non-toxic, water white viscous liquid and is available in various molecular weights and viscosity ranges. It is used in various cosmetic and personal products as in the formulation of lipsticks, eye and facial makeup, skin care products and suntan products.
Applications of Polyisobutylene in Cosmetics
Core Functions:
- Moisturizing & Hydration: Exhibits strong affinity with the skin's sebum layer, forming a protective barrier against moisture loss.
- Film-Forming & Viscosity Control: Enhances texture stability in lotions and creams, aids in uniform dispersion of lipstick pigments.
Suitable Product Types:
- Skincare: Creams, lotions (enhances moisturizing properties).
- Color cosmetics: Lipsticks, foundations (improves spreadability and adhesion).
- Sunscreen and hair care products: Compatible with UV absorbers, enhances light stability.
Conclusion
When sourcing PIB raw materials, partnering with a reliable PIB polymer supplier and manufacturer is essential. Tianjin Gnee Biotech Co. Ltd., with its own production facilities and strict quality control systems, provides consistent product quality and the ability to offer custom PIB molecular weight solutions to meet diverse industrial requirements, ensuring long-term supply stability for global markets.