Felt Products Mfg. Co.

Purshottam S Patel

Donald J McDowell

An anaerobic sealant composition capable of polymerizing upon exclusion of air comprises (1) a polymerizable mixture of polyacrylic ester monomer which includes a polyacrylic ester derived from alkoxylated bisphenol-type compounds, (2) an inorganic salt initiator which can be a persulfate or a perchlorate of ammonium, alkali metal or an alkaline earth metal, (3) a polymerization accelerator which can be a secondary or a tertiary amine, a N,N-di(lower alkyl)amide of a monocarboxylic aliphatic acid, an organic carboximide of a polycarboxylic acid, or an organic sulfimide of a carboxylic acid, or mixtures of the foregoing, (4) a N-nitrosoamine, and (5) a quinone-type polymerization inhibitor. The composition is prepared by compounding the aforementioned ingredients and suitably aging the resulting formulation.

High-strength anaerobic sealants containing N-nitrosoamine modifier

An anaerobic sealant composition capable of polymerizing upon exclusion of air comprises (1) a polyacrylic ester monomer, (2) an inorganic salt initiator which can be a persulfate or a perchlorate of ammonium, alkali metal or an alkaline earth metal, (3) a polymerization accelerator which can be a secondary or tertiary amine, a N,N-di(lower alkyl)amide of a monocarboxylic aliphatic acid, an organic carboximide of a polycarboxylic acid, or an organic sulfimide of a carboxylic acid, or mixtures of the foregoing (4) a N-nitrosoamine, and (5) a quinone-type polymerization inhibitor. The composition is prepared by compounding the aforementioned ingredients and suitably aging the resulting formulation.

High-strength anaerobic sealant composition and method of preparation

An anaerobic sealant composition capable of polymerizing upon exclusion of air comprises (1) a polyacrylic ester monomer, (2) an inorganic salt initiator which can be a persulfate or a perchlorate of ammonium, alkali metal or an alkaline earth metal, (3) an accelerator which can be a N,N-di(lower alkyl) amide of a monocarboxylic aliphatic acid, an organic carboximide of a polycarboxylic acid, or an organic sulfimide of a carboxylic acid, and (4) a quinone-type polymerization inhibitor. The composition is prepared by compounding the aforementioned ingredients and suitably aging the resulting formulation.

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Elk Grove Village, IL, United States of America

Purshottam S Patel