Chemical name : Dimethylolbutanoic acid ; [2,2-Bis(hydroxymethyl)butyric Acid]
Physical Properties : white crystal. Melting point : 108-115 °C
Dissolved in water ,methanol and acetone etc.
Hydroxy content %
Hydroxyl value ,mgKOH.g-1
Melting point °C
Water content %
Ash content %
Acid value mgKOH/g
Sulfate ion (PPM)
Acetone -triethylamine dissolution test
Usage: DMBA is a new Amyl carboxylic acid with two active hydroxyl methyl groups, so it can be used as synthesis of water-based polymer system which can be widely served in soluble polyurethane,polyester and epoxy resin and other aspect.
It is regarded as a new kind of environment-friendlychainextender and inner emulsifying agent.When producing waterbornepolyurethaneadhesive, there is no need to add any organic solvent and the organicresidue is zero. Then it will solve a series of trouble of using DMPA, such as high melting point, slow dissolving, long reactiontime, high energy Consumption, poor properties of products, using organic solvent and big organicresidue. It also can be used in producing water borne epoxy resin ,polyester and other polyester.
At present, DMBA is the best and multi-purposefunctioningadditive (hydrophilic chain-extender)in waterbornepolyurethane, water-dilutable resin, water based coatings, water-based paint and other water based products.
As a monomer, in the modifyingprocess, there is no need to add any other organic solvents (instead of water). The performancewill beevensimpler process, stabler performance and best effect. (National Patent Product, Patent Number: 201210333925)