Olin Corporation

Robert J Raynor

Francis W Migliaro, Jr

Budd L Duncan

Thomas A Knowles

Ralph S Webber

The present invention relates to a process for preparation of an isocyanate comprising (a) reacting an amide with an aqueous solution of hypochlorous acid in the presence of an water-immiscible organic solvent to produce an N-chloro amide; and (b) reacting said N-chloro amide with a base in the presence of a phase transfer catalyst and a water immiscible organic solvent to produce an isocyanate.

Isocyanates and their preparation using hypochlorous acid

Described herein is the use of N-halo-alkene-sulfonamides as bleaching agents to remove stains from non-white stained materials.

Alkali metal N-halo-alkanesulfonamides bleaching agents

Described herein is a process for the chlorination of amide containing oligomers and/or polymers by reacting the oligomers and/or polymers with an aqueous hypochlorous acid solution containing at least 5% by weight of hypochlorous acid and being essentially free of chlorine, chlorate, and alkali metal ions, said process being conducted in an aqueous medium.

Chlorination of amide containing oligomers and polymers

Described herein is a process for chlorinating a primary amine by reacting the amine with an aqueous hypochlorous acid solution containing at least 5% by weight of hypochlorous acid, the process being conducted in an organic solvent.

Process for the preparation of chloroamines

A process for oxidizing an organic compound selected from an aliphatic, aromatic, aliphatic/aromatic, cycloaliphatic and heterocyclic alcohol, thiol, sulfide, aldehyde, amine, amide, ketone, acid, ether, ester, and organic compounds containing an activated carbon-carbon double bond, which process comprises contacting said organic compound dissolved in an organic solvent with a hypochlorous acid solution.

Hypochlorous acid as a reagent for the oxidation of organic compounds in

Tetraalkylpiperidinyl substituted uracil derivatives are disclosed which can be represented by the formula ##STR1## wherein each R' is independently an alkyl radical, n is 1 or 2 and R is a substituted or unsubstituted aliphatic radical, cycloaliphatic radical, aromatic radical or aromatic-aliphatic radical. These derivatives are useful as UV light stabilizers in synthetic resins.

Synthetic resin composition and its method of use

An aryl N,N'-bis cinnamamide compound having a formula comprising: ##STR1## wherein x equals an integer from 0 to 3; y equals an integer from 0 to 2; z equals an integer from 0 to 2; each R is individually selected from the group consisting of a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxy group having from 1 to 4 carbon atoms, a halo group, a nitro group, an aryl group having 6 to 18 carbon atoms, and a fused unsubstituted or substituted aromatic ring when x is 2 or 3; and each R' and R' is individually selected from the group consisting of a lower alkyl group having from 1 to 4 carbon atoms, a lower alkoxy group having from 1 to 4 carbon atoms, a halo group, a nitro group or an aryl group having from 6 to 18 carbon atoms. These compounds are useful as U.V. light absorbers in plastics and cosmetics (e.g. sunscreens).

Aryl N,N-bis cinnamamide compounds and their use as ultraviolet light

Tetraalkylpiperidinyl substituted uracil derivatives and their use as

2,2,6,6-tetraalkyl-4-piperidinyl derivatives and, more specifically, the N,N'-bis(2,2,6,6-tetraalkyl-4-piperidene)2,2'-diamino-2,2'-dihydrocarbyl divinyl ketones wherein the alkyl groups have independently from one to about eight carbon atoms and said hydrocarbyl moieties are selected from the group consisting of alkyls having between one and about eight carbon atoms, aryl, alkaryl, and aralkyl groups having between one and about twenty carbon atoms. These compounds are useful as UV light stabilizers in plastics and cosmetics (e.g. sunscreens).

Selected 2,2,6,6-tetraalkyl-4-piperidinyl derivatives and their use as

A 2,2,6,6-tetramethyl-4-piperidinyl derivative having a formula comprising: ##STR1## wherein R.sub.1 is hydrogen, an alkyl or alkylene group having 1 to about 8 carbon atoms, or cycloalkyl or aryl groups having about 5 or 6 ring carbon atoms; R.sub.2 and R.sub.3 are individually selected from hydrogen, alkyl groups having 1 to about 8 carbon atoms, and cycloalkyl and aryl groups having about 5 or 6 ring carbon atoms; R.sub.4 is selected from hydrogen and alkyl groups having 1 to about 8 carbon atoms; and n is either 1 or 2. These compounds are useful as UV light stabilizers in plastics and cosmetics (e.g. sunscreens).

Selected 2,2,6,6-tetramethyl-4-piperidinyl derivatives and their use as

A select, low density semi-flexible foam polymer composition is prepared from a very select reaction mixture which is characterized by a foaming agent which consists essentially of water and is substantially free of fluorinated hydrocarbon compounds, and a relatively low reaction mixture NCO/OH index of from about 20 to about 70. The foam polymer composition is particularly useful in packaging fragile or shock-sensitive objects.

Semi-flexible foam polymer used in packaging

A select semi-flexible foam polymer composition prepared from a select reaction mixture, the mixture being characterized by a high level of water and an absence of a polyol. The foam polymer composition is particularly useful in packaging fragile or shock-sensitive objects.

A process for the preparation of rigid polyurethane foams which are relatively stable at elevated temperatures involves reacting a polyether polyol reactant with an organic polyisocyanate reactant in the presence of a foaming agent comprising water. The polyol reactant is a select combination of three polyols and is effective in improving the thermal stability of the resulting foam without appreciably affecting its other physical properties.

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North Branford, CT, United States of America

Robert J Raynor