METHOD FOR PREPARING POLYAMIDE PARTICULATE

PURPOSE: Provided are a method for preparing a polyamide particulate by polymerizing laurolactam, or laurolactam and lactam having C6-C8 in isoparaffin, and a method for purifying a polyamide particulate by treating the particulate with hydrogen peroxide. CONSTITUTION: The method comprise heating a...

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Bibliographic Details
Main Authors HOTA HIROSHI, MINAMI TOSHIKAZU, YAHARA KEN
Format Patent
LanguageEnglish
Korean
Published 07.03.2002
Edition7
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
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Summary:PURPOSE: Provided are a method for preparing a polyamide particulate by polymerizing laurolactam, or laurolactam and lactam having C6-C8 in isoparaffin, and a method for purifying a polyamide particulate by treating the particulate with hydrogen peroxide. CONSTITUTION: The method comprise heating a laurolactam, or laurolactam and lactam having C6-C8 in isoparaffin in the presence of alkali metal catalyst, fusion inhibitor and polymerization initiator, so as to polymerize the laurolactam, or laurolactam and lactam having C6-C8. The fusion inhibitor is an alkali metal salt of higher fatty acid. The polymerization initiator is phosphorus trichloride. The polyamide particulate obtained by the method has a high purity.
Bibliography:Application Number: KR20000050642