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Product Introduction

Dimethylol propionic acid -DMPA is a chemical compound that has the full IUPAC name of 2,2-bis(hydroxymethyl)propionic acid and is an organic compound with one carboxyl and two hydroxy groups.

[1] It has the CAS Registry Number of 4767-03-7.

• Regular: Standard grade Dimethylolpropionic Acid
• Low Sodium: Ideal for applications requiring insulation (i.e. insulated films & coatings)
• Fine: Smaller particle size for better quality of dispersions

Dimethylol propionic acid -DMPA is an odorless free flowing white crystalline solid and essentially non-toxic. DMPA has two different functional groups hydroxyl and carboxylic acid so the molecule can be used for a wide variety of syntheses. In addition to reaction with other chemicals, DMPA can also react with itself to produce esters via esterification, as one example.

Dimethylolpropionic acid is multi-purpose organic raw material. It is one kind of chain extenders which used in water-based polyurethanes. It can also obtain self-emulsifying properties for polyurethane. 

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.

Applications for Dimethylolpropionic Acid include:

• Polyurethane dispersions
• Water soluble alkyds and polyester resins
• Powder coatings
• Epoxy ester coatings
• Printing inks
• Lubricating oil additives

Benefits:

• Adhesion          • Carboxylic Acid Functional      • Hardness/High Tg     

• Hydrophilic      • Low Tg/Multi Functional          • Water Resistance

• Water Dispersibility             • Hydroxyl Functional 

CAS No.: 4767-03-7;  EINECS No.: 225-306-3;  Molecular formula: C5H10O4;  Molecular weight: 134.13

Product Introduction

With a tertiary carboxylic acid group and two reactive hydroxyl groups, 2,2-bis(hydroxymethyl)butanoic acid(CAS No.10097-02-6) is one single molecule that offers the functionalities of water-soluble polyurethane and polyester. Highly solubility in organic solvents. 10 times more soluble in acetone than dimethyl propanoic acid.

Dimethylolbutyric acid is widely used in the manufacture of water-based polyurethane（wbpu）, polyester, epoxy resin and other adhesives. It has better solubility than DMPA in different solvents and is regarded as a new generation of green environmental protection Chain extenders（chain extensions）, And internal emulsifiers for the production of water-soluble polyurethane adhesives, without the use of organic solvents, zero organic residues, no high melting point, slow dissolution, long reaction time, high energy consumption and other problems.

Features：

• Highly solubility in organic solvents.
• 10 times more soluble in acetone than dimethyl propanoic acid.
• Does not require N-Methyl Pyrrolidine as a co-solvent.
• Does not have a coagulation problem.
• Gives a clear solution after the reaction.

• Tasteless, free flowing white crystals

Some examples on the use of DMBA:

• (water soluble) polyurethane dispersions
• chemical building block
• photo chemicals
• printing inks
• alkyds & polyesters

CAS No.: 10097-02-6; EIMECS No.: 424-090-1; Molecular formula: C₆H₁₂O₄; Molecular weight: 148.16

Packing: 25kg / bag PE bag or paper drum. Shelf life is 2 years.

Storage: Store tightly closed in a cool, dry place. 50cm away from the wall when stacked, with wooden boards or pallets