Process of preparing poly

Poly (methylene sulphide) having repeating CH2S units is prepared by reacting hydrogen sulphide and formaldehyde in the presence of a catalytic amount of a water soluble metal salt of trithiocarbonic acid. Poly (methylene sulphide) containing repeating CH2S units, in the form of a free flowing white...

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Hauptverfasser:	HWA JESSE C. H, REMES NATHANIEL L
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator	HWA JESSE C. H REMES NATHANIEL L
description	Poly (methylene sulphide) having repeating CH2S units is prepared by reacting hydrogen sulphide and formaldehyde in the presence of a catalytic amount of a water soluble metal salt of trithiocarbonic acid. Poly (methylene sulphide) containing repeating CH2S units, in the form of a free flowing white powder with a m.p. generally above 220 deg.C. The thermal stability may be improved by reacting with agents which either give terminal ethylsulphonyl, acyl, or hydrocarbyl groups, or give polymers in which the CH2S units are interrupted by these groups. The modified polymers are suitable for the prodn. of fibres, extrudates, and mouldings.
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Poly (methylene sulphide) containing repeating CH2S units, in the form of a free flowing white powder with a m.p. generally above 220 deg.C. The thermal stability may be improved by reacting with agents which either give terminal ethylsulphonyl, acyl, or hydrocarbyl groups, or give polymers in which the CH2S units are interrupted by these groups. 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H</creatorcontrib><creatorcontrib>REMES NATHANIEL L</creatorcontrib><title>Process of preparing poly</title><description>Poly (methylene sulphide) having repeating CH2S units is prepared by reacting hydrogen sulphide and formaldehyde in the presence of a catalytic amount of a water soluble metal salt of trithiocarbonic acid. Poly (methylene sulphide) containing repeating CH2S units, in the form of a free flowing white powder with a m.p. generally above 220 deg.C. The thermal stability may be improved by reacting with agents which either give terminal ethylsulphonyl, acyl, or hydrocarbyl groups, or give polymers in which the CH2S units are interrupted by these groups. The modified polymers are suitable for the prodn. of fibres, extrudates, and mouldings.</description><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS</subject><subject>METALLURGY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1968</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAMKMpPTi0uVshPUygoSi1ILMrMS1coyM-p5GFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8aHBxsYWZpamFo7GhFUAAKHXIh4</recordid><startdate>19680604</startdate><enddate>19680604</enddate><creator>HWA JESSE C. H</creator><creator>REMES NATHANIEL L</creator><scope>EVB</scope></search><sort><creationdate>19680604</creationdate><title>Process of preparing poly</title><author>HWA JESSE C. 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subjects	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
title	Process of preparing poly
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