Document o9L3Oxk8pNZqzVdN4664NXEaD

Cummlng fatal) - Oeneral Offices March 5, 1970 SONNKBOPtN/tOLYSULFIDKa N. W. Touohette JFQ Research J. R. Darby - JFQ Research M. W. Farrar - JFQ Research W. P. Waycheff I mat Herb Rosenblatt, group leader for Sonneborn, recently. 1. Aroclor 1248/1254 They use In polysulfIdea. They claim that the high weight loss they used ta get at 100 C with 1248/1254 was due ta the use of calcium and other metallic peroxides. No problem at 70*-85* C which la now the accepted weight loss temperature. Is this true. Perhaps this Is how we can "degrade" these FCBs. 2. Santlclzer 140 He claimed that Santlclzer 140 and lead peroxide In a C-5 catalyst formulation "smokes" spontaneously. I have been preaching the virtues of Santlclzer 148 recently. Will I be responsible for blowing up our friendly formulatars? /dbw Cumming Paten 0A57300 TOWOLDMONOQ53994