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DMPA®

Dimethylolpropionic Acid
  • Tri-functional compound with 2 primary hydroxyl groups and 1 tertiary carboxyl group
  • Neopentyl structure 
  • Permits simplified processing by allowing the combining of all reactants in a single kettle charge
  • Free acid group actively promotes resin water solubility or water dispersibility after neutralization with a base 
  • Easily introduces a polar group to improve coating adhesion and synthetic fibre dye receptivity
  • Increases the alkali solubility of deposited films.

Features

  • Tri-functional compound with 2 primary hydroxyl groups and 1 tertiary carboxyl group
  • Neopentyl structure 
  • Permits simplified processing by allowing the combining of all reactants in a single kettle charge
  • Free acid group actively promotes resin water solubility or water dispersibility after neutralization with a base 
  • Easily introduces a polar group to improve coating adhesion and synthetic fibre dye receptivity
  • Increases the alkali solubility of deposited films.

Uses

  • Aqueous urethane dispersions
  • Water soluble alkyd and polyester resins for improved improved hydrolytic stability
  • Powder coatings
  • Epoxy ester coatings 
  • Urethane elastomers 
  • Electrodeposition coatings 
  • Nylon / polyester fibre blends 
  • Lubricating oil additives
  • Photoresists / photo print plates

Characteristic Values

Typical Properties
Molecular Weight 134.13
Acid Number, mgKOH/g 410 - 415
Melting Point, °C 170 - 180
Flashpoint (Cleveland Open Cup), °C 220
Decomposition Temperature, °C 230
Bulk Density, lbs / ft3 52.4
Solubility, g /100g solvent  @ 25°C
Water 11
Acetone 2.3
Ethanol insoluble
 
Appearance: odourless, free flowing white crystalline solid 

Product Applications & Benefits

Applications

  • Adhesives & Sealants
  • Alkyd Resins
  • Architectural Coatings
  • Automotive & Industrial Coatings
  • Polyester Resins
  • Polyurethane Dispersions
  • Wood & Leather Finishes

Benefits

  • Adhesion
  • Carboxylic Acid Functional
  • Hardness
  • High Tg
  • Hydrophilic
  • Hydroxyl Functional
  • Low Tg
  • Multi Functional
  • UV Stable
  • Water Dispersibility
  • Water Resistance

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