What is Polyurethane CAS 9009-54-5?

Polyurethane is a broad class of synthetic polymers formed by the reaction of diisocyanates with polyols. CAS 9009-54-5 is a general polymer/resin identifier, often represented by the repeat formula (C3H8N2O)n, and is supplied in forms such as resin, foam, elastomer, or reactive system depending on the grade.

What are the main industrial uses of Polyurethane CAS 9009-54-5?

Polyurethane is used in thermal insulation, rigid and flexible foam, coatings, adhesives, sealants, synthetic leather, textiles, elastomers, and composite or construction applications. The technical grade can be formulated as a 100% solids or high-solids reactive system for specific processing conditions.

How do polyether and polyester polyurethane grades differ?

Polyether-based grades generally provide better hydrolysis resistance and flexibility in wet environments, while polyester-based grades tend to offer higher oil resistance, tensile strength, and abrasion resistance. Selecting between them depends on the mechanical, chemical, and environmental requirements of the final product.

Why do Polyurethane specifications vary from one supplier or grade to another?

Because CAS 9009-54-5 covers a polymer family rather than one fixed small molecule, important properties such as molecular weight, solids content, viscosity, hardness, NCO content, gel time, and density are grade-specific. Buyers should compare the selected grade against the intended processing method and end-use performance rather than treating all PU products as interchangeable.

Polyurethane CAS 9009-54-5

Polyurethane CAS 9009-54-5 is a versatile macromolecular synthetic polymer formulated through the precise exothermic polyaddition reaction between diisocyanates and polyhydroxyl compounds. Operating extensively within the construction and coating chemicals category, this highly adaptable PU resin acts primarily as a cross-linked structural matrix and thermal insulator in rigid or semi-rigid configurations. The macromolecular network of cellular polyurethane provides exceptional mechanical load-bearing capacity and hydrolytic stability, making it a critical chemical component for continuous paneling and heavy-duty floor coatings. As a primary architectural polyurethane foam, the material exhibits superior resistance to non-polar solvents, abrasion, and mechanical fatigue when integrated into complex polyurethane elastomer matrices or industrial sealant systems. Our integrated synthesis infrastructure allows us to maintain competitive factory pricing for formulation engineers requiring customized specifications such as specific NCO/OH ratios, gel times, and viscosity profiles. We provide fully authenticated technical documentation, including MSDS, TDS, COA, with every global shipment to facilitate seamless quality audits and ensure strictly regulated bulk supply for large-scale continuous manufacturing processes.

CAS: 9009-54-5
Synonyms: PU resin, Cellular polyurethane, Polyurethane foam, Polyurethane elastomer
Einecs: 210-898-8
Molecular Formula: (C3H8N2O)n
Grade: Industrial Grade / Technical Grade
Package: 200kg/iron drum, 1000kg/IBC drum, or bulk ISO tank

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Product Description

Technical Data

Properties	Specifications (Typical Liquid Prepolymer/Resin)
Appearance	Clear to amber viscous liquid (pre-curing)
Solid Content	≥ 99.0%
Density (at 25°C)	1.05 – 1.20 g/cm³
Viscosity (at 25°C)	1000 – 3500 mPa·s
Free NCO Content	3.5% – 6.5% (customizable)
Moisture Content	≤ 0.05%
Flash Point	> 200°C
Cured Shore Hardness	60A – 80D (depending on formulation)

Applications

Industrial Insulation: Formulated into rigid structural foams for cryogenic storage, heavy pipeline insulation, and refrigerated transport vehicles due to its extremely low thermal conductivity.
Heavy-Duty Coatings: Utilized as the primary binder in two-component (2K) industrial floor coatings and anti-corrosion marine paints, providing high UV and chemical resistance.
Elastomeric Components: Cast into high-wear industrial parts such as conveyor rollers, heavy-load wheels, and automotive suspension bushings that require high tensile strength and tear resistance.

For thermosetting coating or adhesive systems specified with an epoxy binder rather than a polyurethane matrix, Bisphenol F Epoxy Resin is a separate resin family.

Storage & Safety

Storage: Store strictly in tightly sealed, moisture-proof containers within a dry, well-ventilated warehouse (15°C – 30°C). Atmospheric moisture will react with free isocyanate groups to release carbon dioxide, potentially causing pressure buildup and premature curing.
Safety (PPE): Operators must wear chemical-resistant butyl gloves, full-face splash goggles, and NIOSH-approved organic vapor respirators. The uncured resin may cause respiratory and dermal sensitization; ensure robust local exhaust ventilation is active during decanting and mixing procedures.

Quality Assurance

Our polymer manufacturing facility employs advanced Fourier-transform infrared spectroscopy (FTIR) to monitor the exact degree of isocyanate conversion and polyaddition completion during batch synthesis. Each production run undergoes rigorous titration to determine the exact Free NCO% and automated rotational viscometry testing, ensuring predictable reaction kinetics and consistent physical properties for downstream industrial processors.

FAQ - Technical & Supply Chain

Q:
What is Polyurethane CAS 9009-54-5?

A: Polyurethane is a broad class of synthetic polymers formed by the reaction of diisocyanates with polyols. CAS 9009-54-5 is a general polymer/resin identifier, often represented by the repeat formula (C3H8N2O)n, and is supplied in forms such as resin, foam, elastomer, or reactive system depending on the grade.
Q:
What are the main industrial uses of Polyurethane CAS 9009-54-5?

A: Polyurethane is used in thermal insulation, rigid and flexible foam, coatings, adhesives, sealants, synthetic leather, textiles, elastomers, and composite or construction applications. The technical grade can be formulated as a 100% solids or high-solids reactive system for specific processing conditions.
Q:
How do polyether and polyester polyurethane grades differ?

A: Polyether-based grades generally provide better hydrolysis resistance and flexibility in wet environments, while polyester-based grades tend to offer higher oil resistance, tensile strength, and abrasion resistance. Selecting between them depends on the mechanical, chemical, and environmental requirements of the final product.
Q:
Why do Polyurethane specifications vary from one supplier or grade to another?

A: Because CAS 9009-54-5 covers a polymer family rather than one fixed small molecule, important properties such as molecular weight, solids content, viscosity, hardness, NCO content, gel time, and density are grade-specific. Buyers should compare the selected grade against the intended processing method and end-use performance rather than treating all PU products as interchangeable.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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