IBAO-65: Isobutylaluminoxane Type 65 (220326-29-4) — Co-catalyst for Polymer Production

August 12, 2026 3 min read





IBAO-65: Isobutylaluminoxane Type 65 (220326-29-4) — Co-catalyst for Polymer Production



IBAO-65: Isobutylaluminoxane Type 65 (CAS 220326-29-4)

IBAO-65 is an aluminoxane used as a co-catalyst in the Ziegler-Natta polymerization of olefins. It provides high activity and improved polymer morphology in polyolefin production.

Quick Facts

Trade Name IBAO-65
Chemical Name Isobutylaluminoxane Type 65
CAS Number 220326-29-4
Chemical Family Aluminoxane
Brand Dosender
Function Category Co-catalyst
Product Line Metal Alkyls – Aluminoxanes
Applications Ziegler-Natta Catalysis, Polymerization
Market Segment Polymer Production
Physical Form Solution
Decomposition Temperature
Active Oxygen Content
Molecular Weight

What Is Isobutylaluminoxane Type 65?

Isobutylaluminoxane Type 65 is a aluminoxane supplied under the Dosender brand as part of the
Metal Alkyls – Aluminoxanes portfolio. IBAO-65 is an aluminoxane used as a co-catalyst in the Ziegler-Natta polymerization of olefins. It provides high activity and improved polymer morphology in polyolefin production. As a co-catalyst,
it is engineered for demanding Polymer Production applications where consistency and purity are critical.

Key Properties & Specifications

  • Chemical family: Aluminoxane
  • CAS number: 220326-29-4
  • Physical form: Solution
  • Decomposition temperature:
  • Active oxygen content:
  • Molecular weight:

How It Works

Isobutylaluminoxane Type 65 is an organometallic compound that functions as an alkylating / co-catalyst component in coordination polymerization systems (for example Ziegler-Natta and metallocene processes) and as a reducing or initiating reagent in fine-chemical synthesis. Many metal alkyls are pyrophoric and react violently with water, so they are supplied and handled under inert atmosphere.

Primary Applications

IBAO-65 is applied across Ziegler-Natta Catalysis, Polymerization. Typical market segments include Polymer Production.
Its performance profile makes it a trusted choice for formulators who need reproducible,
high-purity raw materials.

Safety, Handling & Storage

Handle IBAO-65 in accordance with its Safety Data Sheet (SDS). Store in original,
sealed packaging away from heat, ignition sources and incompatible materials, within the
recommended temperature range. Personal protective equipment and adequate ventilation are
required. Always consult the current SDS and applicable local regulations before use.

Regulatory & Compliance

Do Sender Chem supplies Isobutylaluminoxane Type 65 with full documentation and supports compliance with
international chemical regulations (including REACH where applicable). For controlled
precursor grades, supply is managed under know-your-customer and licensing procedures.

Why Source IBAO-65 from Do Sender Chem?

Do Sender Chem is a global specialty chemical manufacturer offering a broad, multi-language
catalog, consistent quality and responsive technical support. With localized content in 20
languages and worldwide delivery, we help polymer, rubber and specialty producers secure
reliable co-catalyst supply.

Frequently Asked Questions

What is Isobutylaluminoxane Type 65 used for?

Isobutylaluminoxane Type 65 (trade name IBAO-65) is used as a Co-catalyst in Ziegler-Natta Catalysis, Polymerization. It serves manufacturers in the Polymer Production segments.

What is the CAS number of Isobutylaluminoxane Type 65?

The CAS Registry Number of Isobutylaluminoxane Type 65 is 220326-29-4. The CAS number uniquely identifies the substance and is the standard reference used in safety data sheets, regulatory filings and procurement specifications.

Is Isobutylaluminoxane Type 65 classified as Aluminoxane?

Yes. Isobutylaluminoxane Type 65 belongs to the Aluminoxane chemical family and is marketed under the Dosender brand as part of the Metal Alkyls – Aluminoxanes product line.

How should IBAO-65 be stored and handled?

IBAO-65 should be stored according to its safety data sheet, away from heat, ignition sources and incompatible materials, in original sealed packaging under the recommended temperature range. Always consult the current SDS and local regulations before handling.

Which industries buy IBAO-65?

IBAO-65 is supplied to producers in the Polymer Production industries that require reliable, high-purity Co-catalyst raw materials.

Related Products

Explore other aluminoxane and co-catalyst products in our catalog, or contact
our team for formulation guidance.

References

  • CAS Registry Number: 220326-29-4 — Isobutylaluminoxane Type 65
  • Do Sender Chem product data sheet: IBAO-65


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