NL6914710A - Fibre coated expandable thermoplastic sheet for form - ing smooth surfaced lightweight (reinforced) mouldings - Google Patents

Fibre coated expandable thermoplastic sheet for form - ing smooth surfaced lightweight (reinforced) mouldings

Info

Publication number
NL6914710A
NL6914710A NL6914710A NL6914710A NL6914710A NL 6914710 A NL6914710 A NL 6914710A NL 6914710 A NL6914710 A NL 6914710A NL 6914710 A NL6914710 A NL 6914710A NL 6914710 A NL6914710 A NL 6914710A
Authority
NL
Netherlands
Prior art keywords
pref
mouldings
lightweight
reinforced
thermoplastic sheet
Prior art date
Application number
NL6914710A
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 claimed from DE19681801537 external-priority patent/DE1801537A1/en
Priority claimed from DE19681807225 external-priority patent/DE1807225A1/en
Application filed filed Critical
Publication of NL6914710A publication Critical patent/NL6914710A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/24—Making multilayered articles
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/30—Expanding the moulding material between endless belts or rollers
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/326—Joining the preformed parts, e.g. to make flat or profiled sandwich laminates
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

Items made from thermoplastic expanded sheet materials comprising a layer of thermoplastic material 0.05-50, pref. 0.5-5 mm thick containing a blowing agent and covered on one or both sides with a 'fur' of non-woven mineral or synthetic or natural fibres of 1 25, pref. 2-15 denier strands applied as a loading of 10-200, pref. 20-100 g/m2. The fibres are embedded into the surface of the expandable sheet by press or calender treatment at a temperature below the effective foaming temperature, and the resulting composite sheet may be expanded and formed in a subsequent operation. several such sheets may be laminated together, pref. in low pressure moulds or between heated travelling belts. Pref. two such sheets are used to line opposite havles of a (belt) mould with the fur coated surface against the mould and a layer or pieces of reinforcing material trapped between the expandable surfaces.
NL6914710A 1968-10-05 1969-09-29 Fibre coated expandable thermoplastic sheet for form - ing smooth surfaced lightweight (reinforced) mouldings NL6914710A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681801537 DE1801537A1 (en) 1968-10-05 1968-10-05 Fibre coated expandable thermoplastic sheet for form - ing smooth surfaced lightweight (reinforced) mouldings
DE19681807225 DE1807225A1 (en) 1968-11-06 1968-11-06 Fibre coated expandable thermoplastic sheet for form - ing smooth surfaced lightweight (reinforced) mouldings

Publications (1)

Publication Number Publication Date
NL6914710A true NL6914710A (en) 1970-04-07

Family

ID=25756225

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6914710A NL6914710A (en) 1968-10-05 1969-09-29 Fibre coated expandable thermoplastic sheet for form - ing smooth surfaced lightweight (reinforced) mouldings

Country Status (2)

Country Link
BE (1) BE739862A (en)
NL (1) NL6914710A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815723C1 (en) * 1988-05-07 1989-06-01 Basf Ag, 6700 Ludwigshafen, De

Also Published As

Publication number Publication date
BE739862A (en) 1970-03-16

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