2,2-Dimethylol Propionic Acid (DMPA)
(National Patent Product, patent number: 201210423582)
CAS NO.:4767-03-7
Chemical name: 2,2-Dimethylol Propionic Acid
Structural Formula: CH3-C(CH2OH)2-COOH
Molecular Formula: C5H10O4
Molecular Weight:134.13
It can be dissolved in Acetone and Methanol, but not in Benzene, Methylbenzene.The new structure of amyl gives itself good heat-resistance, water-resistance and color stability. And the structure of dihydroxy alcohol with hydroxyl gives it some special purpose.
Item |
Index |
Appearance |
White powder |
Hydroxy content % |
≥99 |
Hydroxyl value ,mgKOH.g-1 |
815~870 |
Melting point℃ |
≥180℃ |
Chroma (PT-CO) |
≤150# |
Water content % |
≤0.3 |
Ash content% |
≤0.03 |
Residual formaldehyde% |
≤0.03 |
Acid value mgKOH/g |
410.0-418.0 |
Fe（PPM） |
≤5 |
Na (PPM） |
≤50 |
K（PPM） |
≤10 |
P（PPM） |
≤10 |
Si（PPM） |
≤1 |
Sulfate ion（PPM） |
≤10 |
Acetone -triethylamine dissolution test |
clear transparent |
Usage:2,2-Dimethylol Propionic Acid is a versatile organic raw materials. It is a chain extender in the manufacturing of waterborne polyurethane and can make polyurethane achieve self-emulsifying performance, being the waterborne polyurethane emulsion which has good stability. It is also used in the producing of polyurethane emulsionleather finishing agent, which is the upgrade products of traditional emulsive polyacrylate leather finishing. Used as addictive in modifying polyester resin ; the raw material of making photosensitive resin and liquid crystal ; epoxy ester coatings, PU elastomers and powder coating ; used in producing magnetic materials and adhesives to make recording tape , video tape, computer tape, data recording tape and magnetic card, etc.
(National Patent Product, patent number: 201210423582)
2,2-Dimethylolbutanoie Acid (DMBA)（CAS NO: 10097-02-6）annual production : 500 tons
2,2-Dimethylol Propionic Acid (DMPA)（CAS NO: 4767-03-7） annual production : 1000 tons.
Package: 25kg/bag (in paper barrel or carton, with innerAl-foil bag). 25kg/drum
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