Reference

Mannich bases and their use as additives for lubricating oils

Mannich bases and their use as additives for lubricating oils. Wilgus, Donovan R.; King, John M. (Chevron Research Co., USA). Ger. Offen. DE 2725125 15 Dec 1977, 15 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07C091-30. PRIORITY: US 76-693807 7 Jun 1976. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Condensation products of phenols (tetrapropenylphenol [55056-75-2] and p-tert-octylphenol [140-66-9]), HCHO [50-00-0], and diethylenetriamine [111-40-0] were prepd. Formulations contg. these products or their Ca salts as lubricating-oil additives were described.

Extraction-resistant polyolefin stabilizer

Extraction-resistant polyolefin stabilizer. Allan, John Leslie Hugh; Roderick, John James (Dart Industries, Inc., USA). Ger. Offen. DE 2716811 27 Oct 1977, 21 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08K005-13. PRIORITY: US 76-677105 15 Apr 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) A novolak resin prepd. from HCHO and sulfonated p-tert-octylphenol was used, as the acid or the Et3N salt, as an antioxidant in ethylene-propylene copolymer [140-66-9]. The antioxidant was resistant to extn. from the copolymer by petrolatum, e.g., during use as an insulator for elec. cables, was resistant to degrdn. during processing of the copolymer, e.g., at 260° for 30 min, and did not adversely affect the elec. properties of the copolymer.