N,N'-(4,4'-diphenylmethane)bismaleimide is an aromatic bismaleimide resin known for its excellent high temperature resistance and mechanical properties. It is a high melting point yellow powder with strong chemical resistance.In the electronics field, BMI resins manufactured by Yangchen tech is used to make heat-resistant laminates and electrical insulation materials for harsh conditions (H/F grades).

In contrast, traditional epoxy resins are widely used in PCB laminates and adhesives due to their low cost and ease of use, but they begin to lose strength and degrade at high temperatures. This blog compares the material properties and application differences of 4,4′-bismaleimide (BMI) and epoxy resins in electronic devices.

The rigid, highly conjugated structure of N,N'-(4,4'-diphenylmethane) bismaleimide gives it a high melting point (about 150-160°C) and glass transition temperature. It is almost insoluble in water/ethanol, but soluble in polar organic solvents such as acetone or DMF. High curing temperatures (usually 200-250°C) make BMI crosslinked into a dense three-dimensional network structure with excellent thermal stability.Commercial systems usually mix BMI with vinyl or allyl comonomers (e.g. DABA, vinyl phenol) to improve toughness. Cured BMI is still harder and stronger than most epoxies at high temperatures.

Technical Indicators

• The significant advantage of 4,4′-bismaleimide (BMI) resins is thermal stability. Unlike standard epoxy resins, which soften and lose modulus above about 120-150°C, BMI-based networks maintain mechanical integrity at temperatures well above 200°C.
• BMIs maintain strength and stiffness in high temperature environments (e.g., aerospace engines, gas turbines) where epoxies tend to fail.
• In fact, high-Tg BMI laminates or prepregs maintain excellent mechanical properties up to about 250°C.
• In contrast, most epoxy-based electronic materials have a Tg below 150°C, limiting them to low-grade insulation applications. BMI also has excellent mechanical strength and stiffness. Its rigid aromatic backbone gives it high tensile and flexural strength. Compared to epoxies, BMI composites can withstand greater static and dynamic loads without deformation.
• For example, parts made with a 4,4′-BMI matrix, such as aircraft fuselage panels or connector housings, will exhibit higher compression and impact resistance than equivalent epoxy-based parts. In tests, BMI composites have demonstrated improved durability under heavy loads and high-velocity impacts, thereby extending the service life and improving the safety of high-performance equipment.
• While epoxies are tough at room temperature, they tend to become brittle or creep at elevated temperatures, while the network rigidity of BMI remains strong. Another key advantage is its chemical and environmental resistance. BMI resins are more resistant to corrosion from solvents, acids, and other chemicals than typical epoxy formulations.

On April 9, 2025, the National Medical Products Administration officially released the "Measures for the Monitoring and Evaluation of Safety Risks of Cosmetics" (hereinafter referred to as the "Measures"), marking that China's cosmetics supervision has entered a new stage of refinement and systematization, further strengthened the safety supervision of cosmetic raw materials and promoting the high-quality development of the industry. For consumers, this means that the quality and safety of cosmetics will be more effectively guaranteed. For enterprises, it is a comprehensive "physical examination" from production to circulation.

As an upstream link in the cosmetics industry chain, our raw material manufacturers will make systematic adjustments from multiple dimensions such as compliance management, technological upgrading, supply chain optimization, and risk prevention and control under the new regulations, in order to meet the requirements of the "Cosmetics Safety Risk Monitoring and Evaluation Management Measures". 1. Strengthen the safety and compliance management of raw materials, cooperate with cosmetic enterprises to complete the filing, and pay attention to dynamic regulatory requirements. Second, enhance technical capabilities and data support, and strengthen research and development innovation. Third, optimize the supply chain and traceability system, establish a full-process traceability mechanism, and strictly manage suppliers. Fourth, adjust market strategies, focus on safe, transparent and sustainable raw materials, and strengthen cooperation with downstream enterprises.

The implementation of the "Measures" will promote the cosmetics industry to develop in a safer and more transparent direction. As a key link in the industrial chain, our raw material manufacturers will proactively adapt to regulatory requirements and enhance our technological capabilities and compliance levels.

Anhui Newman Fine Chemical Co., LTD., as the top leading manufacturer of carbomer and polyacrylic acid polymers, has a sound social responsibility management policy while meeting the requirements of clean sustainable production and good quality. We pay more attention for the rights and interests of employees, improving employees' skills through various forms of training. Reduce pollution emissions, rational use of resources, to ensure that the sustainable environment standards; We, Anhui Newman always focus on customer’s request, comprehensively improve the effectiveness of the service system operation, to provide high quality, high reliability of products. Keep communication and with partners and suppliers, and employees, to promote the company to better fulfill its social responsibilities.

We have been engaged in strategic cooperation with the top ten customers in the global industry to launch products with Newman's characteristics. We have been launching and improving our traditional carbomer 960,970C ,996, 990 and improve carbomer 20,21,10, and 30. Especially, we launched polymeric emulsifier  NM-Carbomer TR series, NM-Carbomer TR-1, TR-2 and TR-3 .And the recently best-selling general-purpose all-round rheology modifier NM-Carbomer1.

Also, we have been launching pharmaceutical grade carbomer homopolymer type A/B/C, such as NM-Carbomer 934P, 974P, 971P, 970G, and carbomer copolymer, carbomer interpolymer such as NM-Carboemr2020NF/2020G, 1382G and 10G/10NF series types. NM-Carbomers meet the requirements of major pharmacopoeia such as Chinese Pharmacopoeia 2020, USA Pharmacopoeia USP/NF, European Pharmacopoeia EP, British Pharmacopoeia BP and other relevant regulations. They have been successfully used in over the counter and pharmaceutical formulations to impart rheology modification, mucoadhesion, controlled drug release, and many other unique properties.

In recent years, the market for adult sensitive skin care has remained booming, and nowadays, this trend is rapidly spreading to the field of children's care. With the rise of "ingredient party parents" and the popularization of scientific parenting concepts, as well as the high incidence of pediatric skin problems, the care of children's sensitive skin has become a new growth point in the maternal and infant industry.

Modern parents are no longer satisfied with the simple "gentle and non-irritating", but pursue "precise care". They hope that the product can provide customized solutions for different age groups (0-3 years old, 3-6 years old, over 6 years old) and different problems (eczema, redness, dryness, etc.). This demand urges brands to conduct in-depth research on the development patterns of children's skin and develop more targeted products.

It is worth noting that this trend is reshaping the market landscape. Products that traditionally rely on "cute packaging" and "gentle claims" are losing their competitiveness, while emerging brands with medical endorsements, transparent ingredient lists and clinical verification are rising rapidly.

When the trend of sensitive skin care reaches the children's field, our raw material manufacturers are no longer merely "ingredient suppliers", but need to become "co-creators of children's skin health solutions". From the scientific selection of natural raw materials, to the cutting-edge exploration of technology, and then to the construction of trust that is compliant and transparent, every link needs to be centered on "children's skin safety". Only in this way can we provide brand owners with truly differentiated and competitive raw materials in this blue ocean market, while safeguarding the healthy future of the next generation of skin.

We, Anhui Newman Fine Chemicals Co., Ltd., are the top leading manufacture of carbomer and acrylates copolymer, and related polymers such as PVP K30, K 90 and PVP/VA 64. Especially our NM-Carbomer 20,2020,21 etc. are hydrophobically modified, cross-linked acrylate copolymers. In addition to the efficient thickening, suspension, they self- wet and disperses quickly in minutes, which remarkably meet formulators’ ease-use need. They have higher electrolyte tolerance and handle a higher level of surfactant actives, being ideally suited for use in formulations containing higher levels of oils, botanical ingredients such as shampoos and hair care products, and hydroalcoholic gels. 

Also, we have been launching pharmaceutical grade carbomer homopolymer type A/B/C, such as NM-Carbomer 934P, 974P, 971P, 970G, and carbomer copolymer, carbomer copolymer such as NM-Carbomer TR-1P, TR-2 P, and Carbomer interpolymer such as NM-Carboemr2020NF/2020G, NM_Carbomer 10G/10NF series types. NM-Carbomers meet the requirements of major pharmacopoeia such as Chinese Pharmacopoeia 2020, USA Pharmacopoeia USP/NF, European Pharmacopoeia EP, British Pharmacopoeia BP and other relevant regulations. They have been successfully used in over the counter and pharmaceutical formulations to impart rheology modification, mucoadhesion, controlled drug release, and many other unique properties.

The current domestic beauty market shows a clear two-sided trend. On one hand, the overall market growth has slowed down, and in some months, it even declined. Consumers' purchasing behavior has become more rational, and they no longer blindly pursue brands but rather pay more attention to the efficacy, safety, and cost-effectiveness of products. On the other hand, the sub-sectors such as efficacy skincare and post-treatment for medical aesthetics have maintained a high growth rate. The group of ingredient enthusiasts is expanding continuously, and they are increasingly in-depth in their understanding of product ingredients, demanding higher quality and efficacy of the ingredients.

With the segmentation of consumption, consumers are paying more attention to the ingredients and efficacy of beauty products, and the technical content of raw materials has become the key to enhancing product competitiveness. Anhui Newman Fine Chemicals Co., Ltd., are the top leading manufacture of carbomer and acrylates copolymer, We have always placed great emphasis on technological innovation. Under the consumption classification trend, we have increased research and development investment and continuously optimized the performance of carbomer products. As a global supplier, Anhui Newman actively participates in international exhibitions and collaborates with customers from over 120 countries. The company has obtained certifications for the ISO9001 quality system, 14001 environmental system, 45001 occupational health and safety system, as well as the Ecovadis certification for the social responsibility system and received a silver award. All products have completed registration with the EU EU REACH and the National Medical Products Administration (CDE, NMPA).

Currently, in order to ensure smooth entry into Muslim regions such as Southeast Asia and the Middle East in line with Muslim customs, some countries (such as Indonesia) have expanded the certification scope to service areas. We are conducting Halal certification (cleaning and purity certification) for all of our products.

Newman carbomer has gained increasing favor from global customers due to its superior  quality and diverse product range. In the personal care products sector alone, Newman Carbomer has over 36 models. As a water-soluble rheological modifier, it can meet the constantly changing market demands. We continuously innovate and introduce a series of Carbomer products with different properties, ranging from powder to liquid, including wide pH range compatibility and electrolyte resistance. For instance, we have not only launched traditional products with high-cost performance such as Newman Carbomer 996,970,990 and 981, but also improved Carbomer products like 20, 21, 10, 30 and 35. The polymer emulsifier NM-Carbomer TR series products are to meet the demands of customers. Meanwhile, liquid carbomer NM-Carbomer SF-1, Aqua 30. NM-Carbomer Aqua10, NM-Carbomer Aqua 20 and NM-Carbomer Aqua 25 were also launched. As an easy-to-use liquid form, due to the special chemical structure, It has a good synergistic thickening effect with surfactants, micelles and hydrophobic raw materials, and has excellent salt resistance. As shown in Table 1 

At the same time, we continue to launch film forming, thickening and lubrication polyvinylpyrrolidone homopolymer such as PVP K30, K90, K17, K25, and PVP/VA copolymer such as PVP/VA64, PVP/VA73 and other series of products.

The construction of a compliance system is the bottom line that Anhui Newman must adhere to, and it is also the passport for entering the market. We closely monitor the latest updates of relevant domestic and international regulations and standards to ensure that all products meet the latest requirements. From raw material procurement to production processing, and up to product delivery, each stage must undergo strict quality control and safety inspections, and a traceable quality system must be established.

In the future, as the consumption market continues to evolve, we will continuously strengthen technological innovation, deepen the global resource layout, and enhance supply chain agility. We will maintain a leading position in the fierce market competition.