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By-products related to fuels results support a bacterially-mediated, degradative origin for Type II-S amorphous organic matter, with algal remains as the primary source of the kerogen.
'HATS': the future of long-term thermal stabilization of polyolefins Schmutz, T. Per. Coal, 1995, 37, (3), 44-49. This paper shows the performance of Tinuvin 622, Chimassorb 944 and Chimassorb 119 as hindered amine thermal stabilizers (HATS) in thin and thick polypropylene articles. Data are presented illustrating the benefit of using these high-molecular weight compounds for long-term thermal stabilization of polypropylene.
The performance in a variety of filled and unfilled, pigmented and unpigmented polypropylene grades is shown and typical applications are discussed.
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