GB1100924A - Fibre-reinforced polyamides - Google Patents

Fibre-reinforced polyamides

Info

Publication number
GB1100924A
GB1100924A GB1688366A GB1688366A GB1100924A GB 1100924 A GB1100924 A GB 1100924A GB 1688366 A GB1688366 A GB 1688366A GB 1688366 A GB1688366 A GB 1688366A GB 1100924 A GB1100924 A GB 1100924A
Authority
GB
United Kingdom
Prior art keywords
specified
composition
vacuum
polyamide
glass fibres
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
GB1688366A
Inventor
Wilhelm Hechelhammer
Dietrich Michael
Hugo Streib
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1100924A publication Critical patent/GB1100924A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B29B9/14—Making granules characterised by structure or composition fibre-reinforced
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
    • C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers

Abstract

The invention comprises articles made from a polyamide composition containing 1-50% of glass fibres, the density of the composition being at least 98% of the theoretical value calculated from the densities of the components. Such articles may be obtained by compressing a preformed article at a temperature above 50 DEG C. but below the melting point of the polyamide. Alternatively a vacuum may be applied to the molten polyamide composition before forming. Polyamides specified include polycaprolactam having a relative viscosity of at least 3. Many additives are specified which may be introduced with or separately from the glass fibres. The composition may be exposed to a vacuum of 0.01-200 mm. Hg and then injection moulded or extruded through a single or multiple screw extruder. An extruded filament may be chopped into granules suitable for further moulding or the article may be moulded directly. Many uses are specified for the treated compositions.
GB1688366A 1965-04-28 1966-04-18 Fibre-reinforced polyamides Expired GB1100924A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF0045918 1965-04-28
DEF0049232 1965-06-10

Publications (1)

Publication Number Publication Date
GB1100924A true GB1100924A (en) 1968-01-24

Family

ID=25976745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1688366A Expired GB1100924A (en) 1965-04-28 1966-04-18 Fibre-reinforced polyamides

Country Status (6)

Country Link
JP (1) JPS509817B1 (en)
BE (1) BE679998A (en)
CH (1) CH469773A (en)
GB (1) GB1100924A (en)
NL (1) NL6605735A (en)
SE (1) SE319305B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139234A (en) * 1983-05-06 1984-11-07 Dow Chemical Co Blown nylon film and process for the preparation thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139234A (en) * 1983-05-06 1984-11-07 Dow Chemical Co Blown nylon film and process for the preparation thereof

Also Published As

Publication number Publication date
BE679998A (en) 1966-10-03
SE319305B (en) 1970-01-12
CH469773A (en) 1969-03-15
JPS509817B1 (en) 1975-04-16
NL6605735A (en) 1966-10-31

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