FR2060568A5 - High mol wt polyamides having high affinity - for acid dyestuffs - Google Patents

High mol wt polyamides having high affinity - for acid dyestuffs

Info

Publication number
FR2060568A5
FR2060568A5 FR7027550A FR7027550A FR2060568A5 FR 2060568 A5 FR2060568 A5 FR 2060568A5 FR 7027550 A FR7027550 A FR 7027550A FR 7027550 A FR7027550 A FR 7027550A FR 2060568 A5 FR2060568 A5 FR 2060568A5
Authority
FR
France
Prior art keywords
granules
high
grps
polyamide
polyamides
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.)
Expired
Application number
FR7027550A
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.)
Rhodiatoce SpA
Original Assignee
Rhodiatoce SpA
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
Priority to IT5326669 priority Critical
Application filed by Rhodiatoce SpA filed Critical Rhodiatoce SpA
Application granted granted Critical
Publication of FR2060568A5 publication Critical patent/FR2060568A5/en
Application status is Expired legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/04Preparatory processes
    • C08G69/06Solid state polycondensation
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Abstract

Polyamide fibres having 80 to 200g. equivalents of amino grps. per 106 g. polymer and a relative viscosity >=40 are prepd. by (a) forming a solid polyamide contg. >=80 g. equivalents of terminal amino grps. per 106 g. polymer and a relative viscosity =35, pref. 25 to 30, in granules, (b) further polymerising these granules in the solid state, in a current of N2 and CO2, by passing these granules down a column contg. a descending bed of polyamide granules and (c) finally extruding the granules obtd. from the botom of the column. By this process polyamide fibres, particularly nylon 6.6, are obtd. having a high mol. wt., a high no. of terminal amino grps. and a high affinity for acid dyestuffs.
FR7027550A 1969-09-09 1970-07-27 High mol wt polyamides having high affinity - for acid dyestuffs Expired FR2060568A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT5326669 1969-09-09

Publications (1)

Publication Number Publication Date
FR2060568A5 true FR2060568A5 (en) 1971-06-18

Family

ID=11281336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7027550A Expired FR2060568A5 (en) 1969-09-09 1970-07-27 High mol wt polyamides having high affinity - for acid dyestuffs

Country Status (1)

Country Link
FR (1) FR2060568A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365646A1 (en) * 1976-09-24 1978-04-21 Bayer Ag Son and polycaprolactam fibers can be dyed in dark colors
EP0159635A2 (en) * 1984-04-12 1985-10-30 E.I. Du Pont De Nemours And Company Process for improving the dyeability of nylon carpet fiber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365646A1 (en) * 1976-09-24 1978-04-21 Bayer Ag Son and polycaprolactam fibers can be dyed in dark colors
EP0159635A2 (en) * 1984-04-12 1985-10-30 E.I. Du Pont De Nemours And Company Process for improving the dyeability of nylon carpet fiber
EP0159635A3 (en) * 1984-04-12 1987-07-22 E.I. Du Pont De Nemours And Company Process for improving the dyeability of nylon carpet fiber

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Legal Events

Date Code Title Description
ST Notification of lapse