composição de borracha de cloropreno, vulcanizado, e, peça moldada

composição de borracha de cloropreno, vulcanizado, e, peça moldada

To provide a chloroprene rubber composition that provides excellent low temperature characteristics such as low temperature permanent compression set and dynamic characteristics at low temperature and provides good permanent compression set, mechanical strength, and processing characteristics also a...

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1. Verfasser: UICHIRO YAMAGISHI
Format: Patent
Sprache:por
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CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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creator UICHIRO YAMAGISHI
description To provide a chloroprene rubber composition that provides excellent low temperature characteristics such as low temperature permanent compression set and dynamic characteristics at low temperature and provides good permanent compression set, mechanical strength, and processing characteristics also at high temperature thus to achieve excellent characteristics within a wide temperature region, and a vulcanizate and a molding thereof. To a chloroprene rubber including a 2,3-dichlorobutadiene unit in an amount of 5 to 20% by mass, a natural rubber is added so as to give a ratio (chloroprene rubber/natural rubber) of 60/40 to 95/5 by mass ratio. Then, with respect to 100 parts by mass of the rubber components, ethylene thiourea is added in an amount of 0.1 to 3.0 parts by mass and dipentamethylenethiuram tetrasulfide is added in an amount of 0.1 to 3.0 parts by mass, thereby preparing the chloroprene rubber composition.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
title composição de borracha de cloropreno, vulcanizado, e, peça moldada
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