China Amines Co., Limited

A polyurethane foam needs more than gas generation: its developing polymer structure must also support the expanding material. Catalyst selection helps coordinate these reactions.

For customers discussing aqueous dimethylamine with China Amines, bis(2-dimethylaminoethyl) ether, or BDMAEE, provides an example of how an upstream amine can connect with a specialized downstream catalyst.

Where Dimethylamine Enters the Supply Chain

Published process literature describes routes that use dimethylamine to produce BDMAEE. For example, US Patent 3,400,157 describes a process involving dimethylamine in an aqueous reaction medium. This establishes a documented chemical connection, rather than evidence that every commercial producer uses the same route.

Aqueous DMA is the amine feedstock in that discussion. BDMAEE is a distinct downstream compound, identified by BASF with CAS number 3033-62-3. A commercial catalyst formulation containing BDMAEE represents another purchasing specification again.

The suitability of a particular DMA concentration or impurity profile must be evaluated against the catalyst manufacturer’s actual process.

What “Blowing Catalyst” Means

BASF describes BDMAEE as a strong blowing catalyst because it accelerates the reaction between water and isocyanate. In water-blown polyurethane systems, that reaction generates carbon dioxide, which contributes to foam expansion.

The catalyst’s role concerns reaction rate. It should not be confused with the carbon dioxide generated during the process or with a physical blowing agent.

A useful analogy is a production timetable: the catalyst influences when things happen, while the formulation determines what is available to react.

Why Blowing and Gelling Must Be Considered Together

Polyurethane formation also involves reactions between isocyanate and polyol. BASF’s catalyst overview explains that catalyst selection can favor gelling or blowing behavior.

Consequently, choosing a catalyst requires consideration of the complete formulation. A description such as “strong blowing catalyst” does not independently establish the finished foam’s density, dimensional stability, or mechanical properties.

For a development trial, it is useful to record the catalyst identity and loading alongside the formulation, processing conditions, observed reaction times, and finished-foam acceptance criteria. This makes later comparisons more meaningful than simply recording whether a sample “rose well.”

Check Whether the Product Is a Formulation

Commercial catalyst products may contain a carrier. BASF’s portfolio literature, for example, distinguishes BDMAEE from a BDMAEE solution in dipropylene glycol. These are examples from that manufacturer’s portfolio, not China Amines specifications.

Before comparing quotations or planning a substitution, confirm:

• The complete catalyst identity and composition.
• The active-content basis and carrier.
• The intended blowing and gelling balance.
• The approved trial and acceptance requirements.

An equal delivered mass of two differently formulated products need not supply an equal mass of BDMAEE. Even matching active content is only part of evaluating a formulation change.

About China Amines

For aqueous dimethylamine inquiries, contact China Amines Co., Limited through www.chinaamines.com. Include concentration, intended manufacturing use, quantity, destination, and required quality documentation so the feedstock discussion can address your process requirements.

References

• BASF — BDMAEE: Lupragen N205
• BASF — Overview of Polyurethane Catalysts
• US3400157A — Production of Dimethylaminoalkyl Ethers
• Covestro — Polyurethane Spray-Foam Technology
• BASF — Polyurethane Catalyst Portfolio