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New organic costabilizers for the stabilization of PVC
Author(s) -
Burley Joseph W.
Publication year - 1997
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.10192
Subject(s) - stabilizer (aeronautics) , pyrrolidine , class (philosophy) , polymer science , materials science , chemistry , biochemical engineering , forensic engineering , organic chemistry , computer science , engineering , mechanical engineering , artificial intelligence
Organic costabilizers constitute a very important class of compounds where the replacement of heavy metals in PVC stabilizers is concerned. These materials are typically added at no more than 5% of the stabilizer formulation. They do, however, make a disproportionate contribution to performance based on addition level. This situation has spurred the search for new materials. Recent advances in this field are reviewed with particular emphasis on a new class of polyketones (pyrrolidine‐2,4‐diones) recently patented by Akcros Chemicals. The regulatory status, performance characteristics, and mechanism of action of this type of material are described.