JPS51149397A - Scouring of polycaprolamide chip - Google Patents

Scouring of polycaprolamide chip

Info

Publication number
JPS51149397A
JPS51149397A JP1757675A JP1757675A JPS51149397A JP S51149397 A JPS51149397 A JP S51149397A JP 1757675 A JP1757675 A JP 1757675A JP 1757675 A JP1757675 A JP 1757675A JP S51149397 A JPS51149397 A JP S51149397A
Authority
JP
Japan
Prior art keywords
polycaprolamide
scouring
chip
caprolactam
aqueous solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1757675A
Other languages
Japanese (ja)
Inventor
Taro Tokusawa
Kiyoshi Maeda
Toshiro Eguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unitika Ltd
Original Assignee
Unitika Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unitika Ltd filed Critical Unitika Ltd
Priority to JP1757675A priority Critical patent/JPS51149397A/en
Publication of JPS51149397A publication Critical patent/JPS51149397A/en
Pending legal-status Critical Current

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  • Polyamides (AREA)

Abstract

PURPOSE: A process of scouring polycaprolamide with an aqueous solution of ε-caprolactam in a multi stage process.
COPYRIGHT: (C)1976,JPO&Japio
JP1757675A 1975-02-12 1975-02-12 Scouring of polycaprolamide chip Pending JPS51149397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1757675A JPS51149397A (en) 1975-02-12 1975-02-12 Scouring of polycaprolamide chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1757675A JPS51149397A (en) 1975-02-12 1975-02-12 Scouring of polycaprolamide chip

Publications (1)

Publication Number Publication Date
JPS51149397A true JPS51149397A (en) 1976-12-22

Family

ID=11947725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1757675A Pending JPS51149397A (en) 1975-02-12 1975-02-12 Scouring of polycaprolamide chip

Country Status (1)

Country Link
JP (1) JPS51149397A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0224322A (en) * 1988-07-12 1990-01-26 Toyobo Co Ltd Purification of polycapramide
NL9401204A (en) * 1993-07-22 1995-02-16 Bayer Ag Extraction of polyamide-6.
WO1999026998A1 (en) * 1997-11-25 1999-06-03 Basf Aktiengesellschaft Continuous polyamide extraction process
WO1999026996A3 (en) * 1997-11-25 1999-09-02 Basf Ag Continuous polyamide extraction process
WO2002050162A1 (en) * 2000-12-20 2002-06-27 Toray Industries, Inc. Polyamide prepolymer, polyamide, and processes for producing these
FR2930251A1 (en) * 2008-08-11 2009-10-23 Arkema France Reducing content of caprolactam and oligomers of copolyamide based on epsilon-caprolactam, comprises first washing of copolyamide with aqueous solution comprising epsilon-caprolactam and second washing of copolyamide with aqueous solution
EP2682417A1 (en) 2012-07-06 2014-01-08 Basf Se Method for cleaning polyamide particles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0224322A (en) * 1988-07-12 1990-01-26 Toyobo Co Ltd Purification of polycapramide
NL9401204A (en) * 1993-07-22 1995-02-16 Bayer Ag Extraction of polyamide-6.
BE1008569A3 (en) * 1993-07-22 1996-06-04 Bayer Ag Extraction of polyamide 6.
WO1999026998A1 (en) * 1997-11-25 1999-06-03 Basf Aktiengesellschaft Continuous polyamide extraction process
WO1999026996A3 (en) * 1997-11-25 1999-09-02 Basf Ag Continuous polyamide extraction process
US6320021B1 (en) 1997-11-25 2001-11-20 Basf Aktiengesellschaft Continuous polyamide extraction process
US6326457B1 (en) 1997-11-25 2001-12-04 Basf Aktiengesellschaft Continuous polyamide extraction process
WO2002050162A1 (en) * 2000-12-20 2002-06-27 Toray Industries, Inc. Polyamide prepolymer, polyamide, and processes for producing these
FR2930251A1 (en) * 2008-08-11 2009-10-23 Arkema France Reducing content of caprolactam and oligomers of copolyamide based on epsilon-caprolactam, comprises first washing of copolyamide with aqueous solution comprising epsilon-caprolactam and second washing of copolyamide with aqueous solution
EP2682417A1 (en) 2012-07-06 2014-01-08 Basf Se Method for cleaning polyamide particles

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