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This section provides an overview for polyolefins as well as their applications and principles. Also, please take a look at the list of 4 polyolefin manufacturers and their company rankings. Here are the top-ranked polyolefin companies as of February, 2025: 1.Americhem, 2.Sekisui Voltek, LLC, 3.Dow Corporate.
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Graduated from Kyoto University, Faculty of Science, Graduate School of Science, Master (Chemistry). Joined a major general chemical manufacturer listed on the First section of the Tokyo Stock Exchange in April 2013. Engaged in analysis and scale-up of new functional polymers. Moved to another major manufacturer since May 2021. Specializes in analytical chemistry, physical chemistry, polymer chemistry, and polymer molding and processing.
https://www.linkedin.com/in/yuta-ishino-1bb143229/
A polyolefin is the generic term for polyethylene and polypropylene. These materials are formed from monomers known as olefins, which are compounds containing double bonds between carbon atoms and are also referred to as alkenes.
Both polyethylene and polypropylene, as polyolefins, possess unique characteristics. However, they have the following in common: (1) lightweight due to their low density, (2) excellent moisture resistance, which prevents the permeation of water vapor in the air, and (3) only carbon dioxide and water are produced when burned because they are composed of only carbon and hydrogen atoms. Only carbon dioxide and water are produced when polyolefin is burned.
Polyolefins are a generic term for resins whose raw material compounds are olefins.
Polyethylene is classified into low-density polyethylene (LDPE), high-density polyethylene (HDPE), and ultra-high-molecular-weight polyethylene (UHMW-PE). UHMW-PE is used in separators for lithium-ion batteries.
Polypropylene is a milky white resin used in a wide range of industries, including food trays, home appliance parts, and automotive parts.
The raw material for polyethylene, which is classified as polyolefins, is ethylene, while the raw material for polypropylene is propylene. Both of these raw materials have double bonds. Hydrocarbons with such double bonds, or alkenes, used to be called olefins. As a remnant of this name, polyethylene and polypropylene made from olefins are called polyolefins.
LDPE and HDPE are manufactured in different ways. Due to the difference in manufacturing methods, the number of molecular chains with branches and molecular weight differs, resulting in LDPE and HDPE having different physical properties. In the case of polypropylene, physical properties vary depending on the stereo-regularity of the methyl groups in the side chains, with higher stereo-regularity resulting in higher hardness and strength.
The following are some characteristics common to both polyethylene and polypropylene, also known as polyolefins.
The first characteristic is that they are lightweight. Polyolefins have a density of less than 1 g/cm3, which is small among resins.
The second feature is excellent moisture resistance. Polyolefins have a low water absorption rate, so they are used to prevent the permeation of water vapor from the air, such as in lids.
The third characteristic is that no harmful compounds are produced when they are burned. Since polyolefins are composed of only carbon and hydrogen atoms, only water and carbon dioxide are produced when they are burned. However, it should be noted that if the polymer is partially modified or additives are added, other compounds may be produced during combustion.
*Including some distributors, etc.
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Americhem, Inc. is a manufacturer and supplier of engineered compounds and masterbatches established in 1941 and based in Akron, Ohio, USA. The company offers engineered compounds such as styrenics, polyolefins, and thermoplastic elastomers. It also offers color masterbatches for adding custom color to synthetic fibers and plastics, and functional additives such as emulsifiers and acidity regulators. The company operates internationally, with manufacturing facilities in North America, Asia, and Europe. It mainly serves clients in the construction, automotive, and packaging industries.
Dow Inc. was originally incorporated in 1897 and is headquartered in Midland, Michigan. The company is a manufacturer and distributor of numerous advanced materials and chemicals used in packaging, infrastructure, and consumer industries by other companies around the world. The company’s product divisions include Packaging & Specialty Plastics, Industrial Intermediates & Infrastructure, and Performance Materials & Coatings. Packaging & Specialty Plastics include ethylene, rubbers, and wire and cable products. Industrial Intermediates & Infrastructure include ethanol amines, adhesives, sealants, and other composites. Performance Materials and Coatings provides paints and industrial coatings for metal packing.
Ranking as of February 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Americhem |
37.5%
|
| 2 | Sekisui Voltek, LLC |
33.3%
|
| 3 | Dow Corporate |
16.7%
|
| 4 | Chiyoda Rubber Co., Ltd. |
12.5%
|
Derivation Method
The ranking is calculated based on the click share within the polyolefin page as of February 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
2 | 66.7% |
|
Japan
|
1 | 33.3% |
12 products found
12 products
Yumoto Electric Co., Ltd.
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Last viewed: 11 hours ago
Fast Response
5.0 Company Review
■Features PMP (polymethylpentene) is a high molecular weight hydrocarbon classified as a polyolefin. It is similar to PP (polypropylene) and has ne...
Otsuka Techno Co., Ltd.
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■A functional film made of a material with a special molecular structure that exhibits high gas permeability. Suitable for MA packaging of cut leaf...
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Standard Response
■Summary Using low viscoelastic polyolefin material technology and stable quality, we have created a stop pack system that works in close contact w...
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■GAT™ can also be used as a partition plate to prevent droplet infection. GAT™ transmits visible light and infrared rays, so by using it as a parti...
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Hotty Polymer Co., Ltd.
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Standard Response
■Summary "Funkl" is a special resin extrusion product with a very low glass transition point. It is a highly temperature-dependent product with a l...
Sumitomo Bakelite Co., Ltd.
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Product introduction ■Polymer features heat resistance, transparency, low moisture absorption, and solvent solubility. ・We develop and sell functi...
