Polypropylene glycol alkyl phenyl ethers

In contrast to resins, which normally increase the glass transition temperature of the polymer, plasticisers decrease the Tg and make the polymer softer. This results in faster wetting of a surface and increases the initial peel strength. This occurs at the expense of cohesion and heat resistance. Common plasticisers are phthalates, such as dioctylphthalate. Polypropylene glycol alkyl phenyl ether is a special polymeric plasticiser which is extremely well compatible with acrylics and does not migrate. 

The main plasticizers used are the classical plasticizers (i.e. phthalates such as DOP, DBP and DIDP). Adipates are also suitable as polymeric plasticizers, but are rarely used owing to price reasons and their somewhat lower compatibihty. A special polymeric plasticizer polypropylene glycol alkyl phenyl ether (Plastiht 3060) from BASF, has extremely good compatibihty with acrylate polymers and does not migrate. This product has now proven highly successfirl in a number of appHcations (including pressure sensitive adhesives, acryhc sealants and paints). 

Frothers are chemicals whose molecules contain both a polar and a nonpolar group. The purpose of a froth is to carry mineral-laden bubbles lor a period of lime until the froth can be removed from the flotation machine for recovery of ils mineral content. Typical frothing chemicals are alcohols, cresylic acids, eucalyptus oils, camphor oils, and pine oils, all of which are slightly soluble in water. Soluble frolhers in common use include alkyl ethers and phenyl ethers of propylene and polypropylene glycols. 

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