Dialkyl adipate esters, dialkyl azelates, some glycol dibenzoate esters, certain epoxy derivities including epoxidized soybean oil, epoxidized tall oil and some epoxy resins, glycollates such as butyl phthalyl, butyl glycollate, mellitates such as trialkyl trimellitates, a few phenoxy compounds, phosphate esters including triaryl, trialkyl and alkyl-aryl combinations, derivatives of ortho-phthalic acid with emphasis on dialkyl and alkyl benzyl o-phthalates, polyesters and various dibasic acids with glycols (e.g., adipic, azelaic and phthalic acids with various glycols terminated with a monofunctional compound), some pentaerythritol derivatives and various sulfonamides.
REF: http://www.geomembrane.com/TechPapers/WhatIsPVC.htm
Comfort yourself that we never use PVC molds due to this leaching - even though the vast majority of manufacturers of 'organic' & hand-made soaps DO use them.
