Pyran

Startup
Summarized by Halo AI

Pyran is a chemical technology company that produces 1,5-pentanediol (1,5-PDO) from renewable agricultural materials. Its proprietary process creates high-performance, biobased building blocks for paints, coatings, and plastics.

Founded & HQ
Madison, WI, USA
Company size
1-10 employees
Funding
~$12.5M
IP status
1 patent filed · 4 grants confirmed
Activity highlights
Secured additional letters of intent for 1,5-pentanediol and expanded toll manufacturing capabilities to meet market demand.

Pyran is a chemical manufacturing company that has developed a proprietary, clean technology to produce 1,5-pentanediol (1,5-PDO) from renewable agricultural resources like wood and crop waste. This process creates 1,5-PDO as an on-purpose product, offering a sustainable alternative to petroleum-based chemicals that are traditionally used in the production of plastics, paints, coatings, and adhesives. By utilizing a cost-effective catalytic pathway, Pyran provides a high-performance, biobased monomer that delivers improved heat, water, and weather resistance while significantly reducing greenhouse gas emissions compared to standard industry alternatives. The company's technology is designed to enable a more circular chemical supply chain while maintaining or lowering production costs for its customers.

For manufacturers and industrial partners, Pyran’s 1,5-PDO addresses the limitations of current diol supplies by providing a stable, renewable, and high-quality chemical building block. It is used in diverse applications such as CASE (coatings, adhesives, sealants, and elastomers), UV-cure acrylates, and biodegradable polymers. Pyran’s bio-based pentanediol has received 100% biobased certification from the USDA and has been validated by independent life cycle assessments and external chemical industry partners. Headquartered in Madison, Wisconsin, and founded in 2018, the company has successfully scaled its technology to produce ton-level quantities to support customer qualification and commercial market demand.

AI summary generated on Jun 22, 2026
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