Zhishang Chemical

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Molecular Formula:  

Formula Weight: 0

ZSpharmac: ALKYL KETENE DIMER Raw Material Suppliers

CAS No: 144245-85-2
Purity: 99%

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Basic Info

Other Names:Ketene Dimers
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Powder
EINECS No.:200-001-8


Alkylketene Dimer (AKD) is a synthetic polymer material, which is mainly prepared by thermal cracking and dimerization of fatty acids (such as stearic acid). From the perspective of chemical raw materials, the structural characteristics and synthesis process of AKD make it have important application value in many industrial fields, especially as a high-efficiency sizing agent in the papermaking industry.


storage temp. -196°C
CAS DataBase Reference144245-85-2



1. Paper Industry
Paper sizing: ALKYL KETENE DIMER is one of the most commonly used internal sizing agents in the paper industry. It can effectively fill the micropores between paper fibers and reduce the absorption of ink and water by paper, thereby improving the smoothness, strength and printing quality of paper. AKD sizing can also reduce the deformation and penetration problems of paper in subsequent processing and use, which is particularly important for the production of high-quality writing paper, printing paper and packaging paper.

2. Coatings and Adhesives
Improved Adhesion and Waterproofing: The hydrophobicity of ALKYL KETENE DIMER makes it an additive in certain coating and adhesive formulations to enhance the waterproof performance and bonding strength of the product, especially in the fields of wood treatment, architectural coatings, etc.

3. Food Packaging
Food Grade Sizing: Due to its good food safety, ALKYL KETENE DIMER is approved for use in the production of food contact paper and paperboard as an internal sizing agent to ensure that the packaging material does not affect the safety and quality of food.

4. Textile industry
Waterproof finishing: ALKYL KETENE DIMER can be used as a waterproof finishing agent for textiles. It forms a waterproof film on the fiber surface through chemical reaction, which improves the waterproof and breathable properties of textiles. It is suitable for outdoor clothing, tents and other textiles that require waterproof functions.

5. Cosmetics and personal care products
Emulsifier stabilizer: In cosmetics and personal care products, ALKYL KETENE DIMER and its derivatives can be used as emulsifiers and stabilizers to help stabilize the water-oil system and improve the texture and durability of the product.

6. Agricultural applications
Soil conditioner: Some derivatives of ALKYL KETENE DIMER can be used as soil conditioners to improve soil structure, increase soil water retention capacity, and help improve the growth environment and yield of crops.


1. Unique chemical structure
Molecular composition: Alkyl ketene dimer is a product obtained by further dimerization of ketene generated by thermal cracking of fatty acids (usually C16 or C18 long-chain fatty acids, such as stearic acid). Its molecule contains two alkyl chains and a conjugated ketone structure, which gives AKD special physical and chemical properties.
Bifunctional group characteristics: The AKD molecule has both a hydrophobic alkyl chain and a fiber-friendly polar group, which enables it to interact well with the surface of pulp fibers and form an effective hydrophobic layer.

2. Flexibility of synthesis process
Diverse synthesis pathways: The synthesis of AKD can be achieved through a variety of approaches, including direct thermal cracking methods, catalyst promotion methods, etc. Different synthesis methods can adjust the performance of the product to meet the needs of different application fields.
Wide sources of raw materials: Since its basic raw materials are fatty acids, and fatty acids can be extracted from animal and vegetable oils and fats, the raw materials for the production of AKD are abundant and sustainable.

3. Performance advantages
Excellent sizing effect: In the paper industry, AKD, as an efficient internal sizing agent, can significantly improve the water resistance and printing performance of paper without affecting the breathability and softness of paper.
Good stability: AKD has good chemical stability and thermal stability, and is not easily affected by environmental factors (such as temperature, humidity), which is beneficial to long-term storage and use of paper.
Environmental friendliness: Compared with traditional sizing agents, AKD has better biodegradability, less pollution to the environment, and is in line with the green development trend of modern industry.

4. Wide application
Papermaking industry: Mainly used in the production of various paper and cardboard to improve product quality.
Other industrial applications: In textiles, coatings, adhesives, agriculture and other fields, AKD and its derivatives can also be used as additives to improve the waterproofing, adhesion and other functionality of materials.

Contact Us

As a company specializing in the production and supply of ALKYL KETENE DIMER raw materials, we are committed to providing customers with high-quality products and preferential prices. We have rich experience and technology to ensure the quality and stable supply of our products. No matter where you are, we can provide you with the ALKYL KETENE DIMER raw materials you need to support your production and research and development.

We always adhere to the principle of honest management, strictly control product quality, and serve every customer with a customer-first attitude. Over the years, we have established good cooperative relations with domestic and foreign customers and won their trust and praise.

If you have any needs or are interested in our products, please contact our service staff directly, and we will wholeheartedly provide you with the best service and products. Looking forward to cooperating with you and developing together!

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.