American Cyanamid Company

Thor Gmbh

Christos Savides

John H Bright

William Baptist Hardy

Allan J Robertson

Albrecht H Granzow

Joseph A Hoffman

Thomas Wunder

John Christian Oppelt

Hans-Jurgen Schmidt

Rudiger Baum

Hans-Jürgen Schmidt

Joseph Frederick Cannelongo

Edward Joseph Schurdak

The invention relates to compounds from the groups of (A) electrophiles, (B) nucleophiles, (C) alkylating agents, (D) antioxidants and (E) oxidizing agents as odor preventatives for reducing so-called ghost odor which is induced by 2-methyl-4-isothiazolin-3-one and/or octyl-4-isothiazolin-3-one. The invention further relates to biocide compositions which comprise 2-methyl-4-isothiazolin-3-one and/or octyl-4-isothiazolin-3-one and also one or more odor preventatives, and to the use of odor preventatives for preventing ghost odor.

Compounds for preventing ghost odour

The compounds bis (.beta.-carboxyethyl)isobutyl phosphine oxide, bis (.beta.-carboxyethyl) sec. butyl phosphine oxide and bis(.beta.-carboxyethyl)-t-butyl phosphine oxide and their use as components in the production of fiber-forming polyamides, fibers produced from said polyamides and a method for the production of various bis (carboxyalkyl) alkyl phosphine oxides are disclosed.

Bis(.beta.-carboxyethyl)isobutyl, sec. butyl and t-butyl phosphine oxide

A method for the extraction of certain amino acids from aqueous solutions by contacting said solutions with various dithiophosphinates in conjunction with a polar diluent is disclosed.

Extraction of amino acids from aqueous solution with dithiophosphinates

A process for the extraction of phenolic compounds from aqueous solutions is disclosed. The process comprises contacting said aqueous solution with an organic solution comprising at least one tertiary phosphine oxide and a high boiling organic solvent.

Extraction of phenols from aqueous solutions

Polyphenylene ether resin compositions are flame retarded by using a combination of a phosphine oxide and a phosphonate in a weight ratio of about 1:3 to 3:1.

Synergistic flame retardant compositions for polyphenylene ether resins

Flame retardant polyolefin compositions containing polymeric pentaerythrityl phosphonates and ammonium polyphosphate.

Polymeric pentaerythrityl phosphonates and their use as flame retardants

A method of flame-retarding polyurethane foams wherein melamine pyrophosphate is added thereto and the resultant flame-retarded foams per se, are disclosed.

Melamine pyrophosphate as flame-retardant in polyurethane foam

Thermal stability of vinyl chloride polymer is improved by use of a compound of the formula ##EQU1## WHEREIN N IS 1 OR 2 AND R is alkyl, alkylene, aryl, arylene, lower alkyl-substituted aryl or arylene, or fluoro-substituted aryl or arylene, alone or in combination with a divalent metal salt of a fatty acid of 12-20 carbon atoms.

Heat stabilizers for polyvinyl chloride

Thermal stability of vinyl chloride polymer is improved by use of a compound of the formula ##EQU1## wherein R.sub.1 is aryl or lower alkyl-substituted aryl; R.sub.2 is hydrogen or lower alkyl; n is 1 or 2; and R.sub.3 is hydrogen or lower alkyl when n is 1 and is alkylene of 1 to 4 carbon atoms or thiodiethylene when n is 2, alone or in combination with a divalent metal salt of a fatty acid of 12-20 carbon atoms.

Mixtures of pentaerythritol tetrakis(3-n-dodecylthiopropionate) and either bis(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl) dithiolterephthalate or 1,3,5-tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)-s-triazine-2,4,6-(1H,3H ,5H)-trione are extremely useful for inhibiting thermal degradation of polypropylene.

Growing community of inventors

Piscataway, NJ, United States of America

Christos Savides