* Pakistan PVC Limited Technical Information Centre* GEO Specialty Chemicals, Inc.* Plasticisers Information Centre* Glass transition* DIDP, DINP, and DBP - Risk Assessment Reports by the European Chemicals Bureau (ECB).
[http://www.freepatentsonline.com/4745208.html]==References====External links==* Plasticisers Information Centre* Glass transition* DIDP, DINP, and DBP - Risk Assessment Reports by the European Chemicals Bureau (ECB).