FR2365597A1 - Polyamide resin micro:powder prodn. - by dissolving waste polyamide resin in aq. isopropyl alcohol at elevated pressure, cooling, agitating and filtering off deposited powder - Google Patents

Polyamide resin micro:powder prodn. - by dissolving waste polyamide resin in aq. isopropyl alcohol at elevated pressure, cooling, agitating and filtering off deposited powder

Info

Publication number
FR2365597A1
FR2365597A1 FR7637170A FR7637170A FR2365597A1 FR 2365597 A1 FR2365597 A1 FR 2365597A1 FR 7637170 A FR7637170 A FR 7637170A FR 7637170 A FR7637170 A FR 7637170A FR 2365597 A1 FR2365597 A1 FR 2365597A1
Authority
FR
France
Prior art keywords
polyamide resin
powder
isopropyl alcohol
micropowder
agitating
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
FR7637170A
Other languages
French (fr)
Other versions
FR2365597B1 (en
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.)
MARUKI SHUOKAI KK
Original Assignee
MARUKI SHUOKAI 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 MARUKI SHUOKAI KK filed Critical MARUKI SHUOKAI KK
Publication of FR2365597A1 publication Critical patent/FR2365597A1/en
Application granted granted Critical
Publication of FR2365597B1 publication Critical patent/FR2365597B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/46—Post-polymerisation treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

wt.% polyamide resin is dissolved in isopropyl alcohol contg. 20-50 wt. % of water at 150-155 degrees C. under increased pressure. The resultant soln. is cooled and at 100-80 degrees C. the soln. is vigorously agitated to deposit the polyamide resin micropowder. The micropowder is filtered off. Pref. the polyamide resin is obtd. from mouldings chiefly consisting of nylon-6 and nylon-66. Waste fibres, are pref. The method is simple, and cheap. The micropowder produced has a uniform particle size of 2-10 mu. The yield is >90%. The micropowder is used as surface treating agent for vinyl chloride resin leather, china material, base material of cosmetics, etc.
FR7637170A 1976-09-24 1976-12-09 Polyamide resin micro:powder prodn. - by dissolving waste polyamide resin in aq. isopropyl alcohol at elevated pressure, cooling, agitating and filtering off deposited powder Granted FR2365597A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11360376A JPS5339355A (en) 1976-09-24 1976-09-24 Process for producing fine powder polyamide resin

Publications (2)

Publication Number Publication Date
FR2365597A1 true FR2365597A1 (en) 1978-04-21
FR2365597B1 FR2365597B1 (en) 1981-12-18

Family

ID=14616391

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637170A Granted FR2365597A1 (en) 1976-09-24 1976-12-09 Polyamide resin micro:powder prodn. - by dissolving waste polyamide resin in aq. isopropyl alcohol at elevated pressure, cooling, agitating and filtering off deposited powder

Country Status (2)

Country Link
JP (1) JPS5339355A (en)
FR (1) FR2365597A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014772A1 (en) * 1979-02-21 1980-09-03 Chemische Werke Hüls Ag Process for the preparation of powdery coating compositions based on polyamides containing at least 10 aliphatically bound carbon atoms for each carbonamide group
EP1319681A1 (en) * 2001-12-12 2003-06-18 Degussa AG PH controlled polyamide powder

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS621728A (en) * 1985-06-27 1987-01-07 Chuichi Hirayama Spherical particle of polyamino acid and production thereof
JP2008303304A (en) * 2007-06-07 2008-12-18 Metal Color:Kk Method for producing crystalline polyamide fine particle
CN108084463B (en) * 2017-12-06 2020-08-28 浙江华正新材料股份有限公司 Preparation method and application of nylon 6 micro powder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014772A1 (en) * 1979-02-21 1980-09-03 Chemische Werke Hüls Ag Process for the preparation of powdery coating compositions based on polyamides containing at least 10 aliphatically bound carbon atoms for each carbonamide group
EP1319681A1 (en) * 2001-12-12 2003-06-18 Degussa AG PH controlled polyamide powder
US8293279B2 (en) 2001-12-12 2012-10-23 Evonik Degussa Gmbh pH-regulated polyamide powder for cosmetic applications

Also Published As

Publication number Publication date
FR2365597B1 (en) 1981-12-18
JPS5339355A (en) 1978-04-11

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