Bismaleimide Series

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N,N-4,4-diphenylmethyene bismaleimide BMI resin
BMI powder
BMI powder


BMI manufactured by Yangchen Tech  can give the material outstanding mechanical properties at high and low temperatures (-200℃~260℃), high electrical insulation, abrasion resistance, aging and chemical corrosion resistance, radiation resistance, difficult to volatility in a high vacuum, as well as excellent adhesion, resistance to heat and humidity and oil-free self-lubrication, is a variety of polymer materials and new rubber modifiers, but also as a crosslinking agent, coupling aget, and curing agent of other polymer compounds. It can also be used as cross-linking agent, coupling agent and curing agent of other polymer compounds.

  • CAS No :

  • Name :

    N,N-4,4-diphenylmethyene bismaleimide
  • Abbreviation :

    BMI or BDM
  • Appearance :

    Yellow powder
  • Molecular Formula :

  • Molecular weight :

  • Lead Time :

    5-7 Days
  • Shipping port :




Abbreviation: BMI or BDM

Molecular formula: C21H14N2O4

Molecular weight: 358.37

Appearance: light yellow solid powder;

Melting point: 150~160°C;

Solubility: Hardly soluble in water and ethanol, easily soluble in acetone and dimethylformamide.

CAS NO: 13676-54-5

We provide you with free samples!Welcome Inquiry! 



Structure formula of BMI resin



Certification of Analysis







Yellow powder

Yellow powder


Dissolved, with trace impurities

Fully soluble, clear

Melting Point℃









Acidity mgkoH/g



Gel time






Application of N,N'-(4,4' DIPHENYLMETHANE)BISMALEIMIDE manufactured by Yangchen Tech


BMI application areas known as the high temperature of the universal plastic polyamine - bismaleimide is also increasingly widely used in many areas of high and new technology, mainly:

1. Motor insulation materials

High-temperature impregnation paint (solvent and solvent-free), enameled wire paint, laminates, weftless tape, mica tape, electronic copper-clad plate, moulded plastics, epoxy-modified F ~ H-class powder coating, casting parts, and so on;

2.Advanced composite material matrix resin 

Aerospace, aviation structural materials, carbon fibre high-temperature resistant structural parts, high-grade printed circuit boards and other functional materials, etc;

3.Engineering plastics 

Such as polypropylene PP, nylon PA, ABS, APC, PVC, PBT, EPDM, PMMA and other materials, enhancement modifier (such as polypropylene glass fibre enhancement modification by adding <1% of BMI-01, you can make the mechanical strength and martin heat-resistant doubled, the effect is significant), but also can be used for the new type of rubber vulcanising agent;

4.Wear-resistant materials

Diamond grinding wheels, heavy-duty grinding wheels, brake pads, high-temperature bearing adhesives, magnetic materials and so on;


Oil-free lubrication of fertiliser-generating (synthetic ammonia) machinery and equipment, dynamic and static sealing materials, and many other high-tech fields. 


BMI  manufactured by Yangchen Tech as a heat-resistant structural materials, H-class or F-class electrical insulation materials, a more ideal resin matrix, widely used in aviation, aerospace, electric power, electronics, computers, communications, automobiles, railways, construction and other industrial fields.


Our warehouse




PE bag lined with PE film, net weight 25kg/bag.


About us



Q1: Is Yangchen Tech a manufacturer or trading company?

A: We are the first N,N'-(4,4' DIPHENYLMETHANE)BISMALEIMIDE manufacturer in China, with an annual production capacity of 3000 tons.


Q2: Does Yangchen Tech provide free samples?

A: We can provide you with free samples for your testing .


Q3: How to pay for the order?

A: We accept payment by T/T.


Q4: Does Yangchen Tech provide technical support for customers?

A: Yes, we do. Each customer's application is unique in some ways. Our customized services of BMI are designed to better meet your needs. Based on our 30+ years of experience in the rubber additives industry, we can provide technical support services based on your specific needs.





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