JPS5518474A - Production of polyaminoacid - Google Patents

Production of polyaminoacid

Info

Publication number
JPS5518474A
JPS5518474A JP9271278A JP9271278A JPS5518474A JP S5518474 A JPS5518474 A JP S5518474A JP 9271278 A JP9271278 A JP 9271278A JP 9271278 A JP9271278 A JP 9271278A JP S5518474 A JPS5518474 A JP S5518474A
Authority
JP
Japan
Prior art keywords
product
effected
polyaminoacid
aminoacids
polyphosphoric acid
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.)
Granted
Application number
JP9271278A
Other languages
Japanese (ja)
Other versions
JPS61372B2 (en
Inventor
Saburo Enomoto
Masami Inoue
Ryoichi Tanaka
Yasuo Nojiri
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.)
PHOSPHORUS CHEM IND
RIN KAGAKU KOGYO KK
Original Assignee
PHOSPHORUS CHEM IND
RIN KAGAKU KOGYO KK
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 PHOSPHORUS CHEM IND, RIN KAGAKU KOGYO KK filed Critical PHOSPHORUS CHEM IND
Priority to JP9271278A priority Critical patent/JPS5518474A/en
Publication of JPS5518474A publication Critical patent/JPS5518474A/en
Publication of JPS61372B2 publication Critical patent/JPS61372B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyamides (AREA)

Abstract

PURPOSE: The polycondensation reaction of aminoacids is effected at a specific temperature in the presence of a catalyst of polyphosphoric acid anilinium salt and the product is purified in aqueous phase, thus producing inexpensively high- purity polyaminoacid through simple operations and processed.
CONSTITUTION: Neutral aminoacids of 5 or less carbon atoms are incorporated with 0.02W0.5 molar equivalent of polyphosphoric acid anilinium salt catalyst and the condensation reaction is effected at 100W180°C. Then, the product is washed with water or treated with a cationic exchange resin to produce the purified product.
COPYRIGHT: (C)1980,JPO&Japio
JP9271278A 1978-07-28 1978-07-28 Production of polyaminoacid Granted JPS5518474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9271278A JPS5518474A (en) 1978-07-28 1978-07-28 Production of polyaminoacid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9271278A JPS5518474A (en) 1978-07-28 1978-07-28 Production of polyaminoacid

Publications (2)

Publication Number Publication Date
JPS5518474A true JPS5518474A (en) 1980-02-08
JPS61372B2 JPS61372B2 (en) 1986-01-08

Family

ID=14062068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9271278A Granted JPS5518474A (en) 1978-07-28 1978-07-28 Production of polyaminoacid

Country Status (1)

Country Link
JP (1) JPS5518474A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716384U (en) * 1980-06-30 1982-01-27
JPS62501914A (en) * 1985-01-23 1987-07-30 ザ　ジレツト　カンパニ− Ballpoint pen writing instrument containing a water-based ink composition
JPH0655776U (en) * 1993-01-13 1994-08-02 三菱鉛筆株式会社 Ballpoint pen
JPH07196796A (en) * 1993-11-24 1995-08-01 Rhone Poulenc Chim Production of polyimide or its product of hydrolysis by biodegradable polypeptide
JPH08231710A (en) * 1994-10-12 1996-09-10 Rhone Poulenc Chim Production of amino acid polycondensate and biodegradable polypeptide hydrolyzate thereof,and use of those in cleaningcomposition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716384U (en) * 1980-06-30 1982-01-27
JPS6223785Y2 (en) * 1980-06-30 1987-06-17
JPS62501914A (en) * 1985-01-23 1987-07-30 ザ　ジレツト　カンパニ− Ballpoint pen writing instrument containing a water-based ink composition
JPH0655776U (en) * 1993-01-13 1994-08-02 三菱鉛筆株式会社 Ballpoint pen
JPH07196796A (en) * 1993-11-24 1995-08-01 Rhone Poulenc Chim Production of polyimide or its product of hydrolysis by biodegradable polypeptide
JPH08231710A (en) * 1994-10-12 1996-09-10 Rhone Poulenc Chim Production of amino acid polycondensate and biodegradable polypeptide hydrolyzate thereof,and use of those in cleaningcomposition

Also Published As

Publication number Publication date
JPS61372B2 (en) 1986-01-08

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