DIBP - A speciality plasticiser

PaintAn information resource on the plasticiser diisobutyl phthalate (DIBP)

CAS Number  84-69-5  
EINECS Number  201-553-2

Diisobutyl phthalate (DIBP)  is a specialist plasticiser often used in combination with other high molecular weight phthalates. 

It is a fast fusing plasticiser which by itself it is too volatile for PVC applications. It is frequently used as a gelling aid in combination with other plasticisers.

A plasticiser for nitrocellulose, cellulose ether, and polyacrylate and polyacetate dispersions. DIBP is a nearly colourless, clear and practically anhydrous liquid with a hardly noticeable odour. It is soluble in the usual organic solvents and is miscible and compatible with all of the monomeric plasticisers commonly used in PVC. DIBP is almost insoluble in water.

Diisobutyl phthalate (DIBP) has very similar application properties to Di-n-butyl phthalate (DBP) and may therefore be used to substitute for DBP in most, if not all, of its applications. These range from the plasticisation of PVC to the production of paints, printing inks and adhesives.