IE34372L - Solid polyamides - Google Patents

Solid polyamides

Info

Publication number
IE34372L
IE34372L IE88170A IE88170A IE34372L IE 34372 L IE34372 L IE 34372L IE 88170 A IE88170 A IE 88170A IE 88170 A IE88170 A IE 88170A IE 34372 L IE34372 L IE 34372L
Authority
IE
Ireland
Prior art keywords
acid
july
stabilizer
monomer
solid
Prior art date
Application number
IE88170A
Other versions
IE34372B1 (en
Original Assignee
Inventa Ag
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 Inventa Ag filed Critical Inventa Ag
Publication of IE34372L publication Critical patent/IE34372L/en
Publication of IE34372B1 publication Critical patent/IE34372B1/en

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
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/04—Preparatory processes
    • 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
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/04—Preparatory processes
    • C08G69/06—Solid state polycondensation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)

Abstract

1305246 Polyamides INVENTA AG 9 July L970 [9 July 1969] 33445/70 Heading C3R A solid polyamide is made by forming a watercontaining prepolymer (Q) by polymerization in the presence, per mole of monomer, of (0À8- 3À94) x 10<SP>-3</SP> moles chain-stabilizer and (1-4À5) x 10<SP>-4</SP> moles catalyst; (Q) is then heated in solid form in an inert gas, thus causing drying and further condensation. The chain-stabilizer is a mono- or di-carboxylic acid, e.g. acetic, adipic or sebacio acid. The catalyst is an inorganic acid or acid salt, e.g. H 3 PO 4 . The water content of (Q) when formed #0À5% wt. (Q) may be granulated and washed, such granules containing 6% wt. water; it may be heated at 10-70‹ C. below its m.p.; it may be formed continuously. The gas may be hot N 2 . The relative final viscosity of the solid polyamide may be 2À7-5À8. The monomer may be #-caprolactam, hexamethylenediamine adipate, laurolactam, or a lactam having 6-12 ring C-atoms. [GB1305246A]
IE88170A 1969-07-09 1970-07-07 Process for solid polyamides IE34372B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1046869A CH520170A (en) 1969-07-09 1969-07-09 Process for the production of high molecular weight polyamides

Publications (2)

Publication Number Publication Date
IE34372L true IE34372L (en) 1971-01-09
IE34372B1 IE34372B1 (en) 1975-04-16

Family

ID=4363555

Family Applications (1)

Application Number Title Priority Date Filing Date
IE88170A IE34372B1 (en) 1969-07-09 1970-07-07 Process for solid polyamides

Country Status (12)

Country Link
JP (1) JPS4928679B1 (en)
AT (1) AT307741B (en)
BR (1) BR7020397D0 (en)
CA (1) CA965198A (en)
CH (1) CH520170A (en)
DE (1) DE2033653A1 (en)
ES (1) ES381556A1 (en)
FR (1) FR2054347A5 (en)
GB (1) GB1305246A (en)
IE (1) IE34372B1 (en)
NL (1) NL7010033A (en)
RO (1) RO55902A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2181236C (en) * 1994-02-16 2007-10-30 Rolando Umali Pagilagan Polyamides having improved color and processibility and process for manufacturing
DE19957664A1 (en) * 1999-11-30 2001-05-31 Basf Ag Device for drying granulates, especially polyamide-6, has granulate inlet at top and outlet at bottom, inert gas inlet and outlet in opposite walls and perforated metal partitions across these walls to slow down and distribute gas
BR112013005421A2 (en) † 2010-09-10 2016-06-07 Basf Se "process for producing polyamides, and use of polyamides".
WO2014177603A1 (en) * 2013-05-02 2014-11-06 Basf Se Method for producing highly viscous polyamides
CN115947937A (en) * 2022-12-27 2023-04-11 无锡殷达尼龙有限公司 Method for producing high-viscosity long-carbon-chain nylon by batch process

Also Published As

Publication number Publication date
CA965198A (en) 1975-03-25
CH520170A (en) 1972-03-15
NL7010033A (en) 1971-01-12
ES381556A1 (en) 1972-11-01
DE2033653A1 (en) 1971-01-21
IE34372B1 (en) 1975-04-16
BR7020397D0 (en) 1973-02-27
GB1305246A (en) 1973-01-31
RO55902A (en) 1973-11-20
JPS4928679B1 (en) 1974-07-29
AT307741B (en) 1973-06-12
FR2054347A5 (en) 1971-04-16

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