Dipropylene glycol monopropyl ether

Core Application Areas

Waterborne Coatings and Inks

Film-forming Aids: Adding 3-5% of DPNP can significantly reduce the Minimum Film-forming Temperature (MFT) of acrylic coatings to below 5℃, improving film flexibility and gloss while reducing VOC emissions. Its high boiling point characteristic delays solvent evaporation, ensuring uniform film formation.

Resin Dissolution: Its dissolving power for alkyd resins and polyurethane resins is superior to glycol ethers, making it suitable as a main solvent for waterborne wood coatings, with a typical dosage of 10-15% of the resin.

Ink Coupling Agent: Improves the dispersion stability of pigments in waterborne inks, prevents flocculation, and is suitable for high-demand scenarios such as food packaging inks.

Industrial Cleaners

Low Odor Solvent: DPNP has an odor threshold lower than 0.1 ppm, making it suitable for formulating non-irritating household cleaners (such as glass cleaners and kitchen degreasers). It can be used in combination with DPNB to enhance cleaning effects.

Metalworking Fluids: Acts as a coupling agent in cutting fluids, enhancing the affinity between lubricants and metal surfaces, reducing wear, while inhibiting microbial growth and extending service life.

Polymer Material Synthesis

Polyurethane Chain Extender: Reacts with isocyanates via hydroxyl groups to improve the flexibility and water resistance of polyurethane elastomers, used in the synthesis of automotive interior materials.

Epoxy Resin Diluent: Has excellent compatibility with epoxy resins, can reduce system viscosity and improve workability, without affecting the mechanical properties after curing. The dosage is 8-12% of the resin.

Electronics and Pharmaceutical Fields

Electronic Cleaners: High-purity DPNP (metal ions < 10 ppm) can remove rosin flux residues from circuit board surfaces, complies with the IPC-7510 standard, and is widely used in semiconductor packaging processes.

Pharmaceutical Carrier: As a solvent for topical medications, it can enhance the skin permeability of antimicrobial agents, for example, used as a solvent in 5% dapoxetine gels.

CAS NO: 29911-28-2

EC NO: 249-951-5

Molecular Formula: C₁₆H₃₆O₅

Molecular Weight: 308.454

Alias: ; Dipropylene glycol monobutyl ether; Dipropylene glycol butyl ether; Dipropylene glycol n-butyl ether; Propylene glycol n-butyl ether; Propylene glycol monobutyl ether; Propylene glycol monopropyl ether; Propylene glycol mono-n-propyl ether; Propylene glycol n-butyl ether;

Structure: