Accession Number : AD0620562

Title :   SOME ALDEHYDEAMINE ACCELERATORS.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Montermoso,Juan C.

Report Date : 14 MAR 1949

Pagination or Media Count : 23

Abstract : As part of the search for better accelerators for rubber vulcanization, a study is undertaken of some aldehydeamines with the purpose of correlating molecular structure with the physical properties imparted to the product. Six compounds synthesized for the study were evaluated in comparison with mercaptobenzothiazole (Captax) and the heptaldehydeaniline condensation product (Hepteen Base) with regard to tensile strength, tensile stress at 500% elongation, ultimate elongation, oven aging, oxygenbomb aging, compression set, free sulfur, and hardness. None possessed the oxygen-resistant property of Captax. In the presence of an antioxidant however, N,N' -dibenzylidene ethylene diamine compared favorably with standard accelerators. It was found to act efficiently alone, as well as in various combinations with one or more of the compounds, Captax, benzothiazyldisulfide (Altax), and zinc dimethyl dithiocarbamate (Methyl Zimate). (Author)

Descriptors :   (*VULCANIZATION, CATALYSIS), (*CATALYSIS, VULCANIZATION), ALDEHYDES, AMINES, RUBBER, MOLECULAR PROPERTIES, MECHANICAL PROPERTIES, TENSILE PROPERTIES, SYNTHESIS(CHEMISTRY), ORGANIC SULFUR COMPOUNDS, HARDNESS, SULFUR

Distribution Statement : APPROVED FOR PUBLIC RELEASE