FR2018237A1 - Fabrication of moulded objects of low - apparent density polyamides - Google Patents

Fabrication of moulded objects of low - apparent density polyamides

Info

Publication number
FR2018237A1
FR2018237A1 FR6930908A FR6930908A FR2018237A1 FR 2018237 A1 FR2018237 A1 FR 2018237A1 FR 6930908 A FR6930908 A FR 6930908A FR 6930908 A FR6930908 A FR 6930908A FR 2018237 A1 FR2018237 A1 FR 2018237A1
Authority
FR
France
Prior art keywords
polyamides
fabrication
low
apparent density
objects
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.)
Withdrawn
Application number
FR6930908A
Other languages
French (fr)
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of FR2018237A1 publication Critical patent/FR2018237A1/en
Withdrawn legal-status Critical Current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
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C08G69/14—Lactams
    • C08G69/16—Preparatory processes
    • C08G69/18—Anionic polymerisation

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

The low density polymers are produced by anionic polymerisation of lactams at least 7 groups, in a mould characterised by the introduction and the fixing of closed, hollow polyamide objects in the mould. Filling of the empty spaces witha mixture of the molten lactam which contains a polymerisation catalyst and an activator, by polymerisation at lower temps. than the softening point of the hollow objects.
FR6930908A 1968-09-17 1969-09-11 Fabrication of moulded objects of low - apparent density polyamides Withdrawn FR2018237A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1779718 1968-09-17

Publications (1)

Publication Number Publication Date
FR2018237A1 true FR2018237A1 (en) 1970-05-29

Family

ID=5704049

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6930908A Withdrawn FR2018237A1 (en) 1968-09-17 1969-09-11 Fabrication of moulded objects of low - apparent density polyamides

Country Status (1)

Country Link
FR (1) FR2018237A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6335100B1 (en) 1985-05-31 2002-01-01 Sumitomo Rubber Industries, Ltd. Structural material and process for its production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6335100B1 (en) 1985-05-31 2002-01-01 Sumitomo Rubber Industries, Ltd. Structural material and process for its production

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Legal Events

Date Code Title Description
ST Notification of lapse