Eastman

Chemical synonyms:

   Dimethyl 1,4-Cyclohexanedicarboxylate

Product description

IUPAC: Dimethyl 1,4-Cyclohexanedicarboxylate

Eastman™ DMCD (Dimethyl 1,4-Cyclohexanedicarboxylate) is a low melting, cycloaliphatic diester used for the synthesis of polyester resins, polyamides, alkyds, and plasticizers. Coatings formulated with DMCD bring excellent hardness/flexibility balance and good chemical, stain, humidity, and corrosion resistance to polyester-melamine baking enamels for appliance, general metal, and automotive applications. Its outstanding hydrolytic stability makes it a good choice in waterborne polyester resins for automotive, industrial maintenance, and general metal applications. DMCD can be used to make polyester polyols for polyurethane coatings for automotive, industrial maintenance, transportation, and aerospace applications as well.

Many of these unique performance properties are similar to those offered by Eastman™ 1,4 CHDA, but unlike CHDA, the reaction of DMCD with glycols or polyols is a transesterification. Methanol, rather than water, evolves from the reaction. DMCD must be reacted in the first stage of a cook with glycols and polyols only. The first stage is processed until methanol no longer evolves, which indicates the reaction is complete. Diacid components are then added in the second stage.

Eastman™ DMCD is a mixture of cis and trans isomers. It is available as a partially crystallized liquid in drums or in molten form via tank truck.

Applications/uses

  • Auto OEM
  • Automotive
  • General industrial coatings
  • Process additives

    Key attributes

    • Excellent hardness/flexibility balance
    • Excellent weathering
    • Good hydrolytic stability
    • Improved chemical, stain, corrosion, and humidity resistance
    • Low color
    • Lower resin solution viscosity compared to aromatic acids

      Regulatory information and data sheets

      Product availability

      Check with local sales office to determine exact availability by country. Orders subjected to minimum order quantity.
      • Europe, Middle East, & Africa
      • Latin America
      • North America

      Authorized distributors

      Please select a region and country for a list of authorized distributors. If a country is not listed for a region, contact Eastman for further information.
      Region   
      Country/territory   
      © 2020 Eastman Chemical Company or its subsidiaries. All rights reserved.
      As used herein, ® denotes registered trademark status in the U.S. only.