NL1002758C2 - Biodegradable prod. simple mfr. useful for a blown foamy structure - by passing a natural polymer at below gelatinisation temp. into or through a heated mould, for packaging for high dimensional stability - Google Patents

Biodegradable prod. simple mfr. useful for a blown foamy structure - by passing a natural polymer at below gelatinisation temp. into or through a heated mould, for packaging for high dimensional stability

Info

Publication number
NL1002758C2
NL1002758C2 NL1002758A NL1002758A NL1002758C2 NL 1002758 C2 NL1002758 C2 NL 1002758C2 NL 1002758 A NL1002758 A NL 1002758A NL 1002758 A NL1002758 A NL 1002758A NL 1002758 C2 NL1002758 C2 NL 1002758C2
Authority
NL
Netherlands
Prior art keywords
biodegradable
passing
gelatinisation
prod
temp
Prior art date
Application number
NL1002758A
Other languages
Dutch (nl)
Other versions
NL1002758A1 (en
Inventor
Jan Hendrik Adolf Arentsen
Jan Wietze Huisman
Original Assignee
Vertis Bv
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 NL9500632A external-priority patent/NL9500632A/en
Application filed by Vertis Bv filed Critical Vertis Bv
Priority to NL1002758A priority Critical patent/NL1002758C2/en
Application granted granted Critical
Publication of NL1002758A1 publication Critical patent/NL1002758A1/en
Publication of NL1002758C2 publication Critical patent/NL1002758C2/en

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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0407—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/3402—Details of processes or apparatus for reducing environmental damage or for working-up compositions comprising inert blowing agents or biodegradable components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2003/00—Use of starch or derivatives as moulding material

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Biodegradable foam product (35) is formed by: (a) passing a pressurised natural polymer(s) at below gelatinisation temperature, into or through a mould (23); (b) heating to cause crosslinking of the polymer and a rise to baking temperature. Also claimed are: (i) apparatus including a closed mould (23); and (ii) an appts. for mfg. biodegradable prods. comprising an extrusion die.
NL1002758A 1995-03-31 1996-04-01 Biodegradable prod. simple mfr. useful for a blown foamy structure - by passing a natural polymer at below gelatinisation temp. into or through a heated mould, for packaging for high dimensional stability NL1002758C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1002758A NL1002758C2 (en) 1995-03-31 1996-04-01 Biodegradable prod. simple mfr. useful for a blown foamy structure - by passing a natural polymer at below gelatinisation temp. into or through a heated mould, for packaging for high dimensional stability

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9500632A NL9500632A (en) 1995-03-31 1995-03-31 Method and device for manufacturing biodegradable products and biodegradable products.
NL1002758A NL1002758C2 (en) 1995-03-31 1996-04-01 Biodegradable prod. simple mfr. useful for a blown foamy structure - by passing a natural polymer at below gelatinisation temp. into or through a heated mould, for packaging for high dimensional stability

Publications (2)

Publication Number Publication Date
NL1002758A1 NL1002758A1 (en) 1996-10-02
NL1002758C2 true NL1002758C2 (en) 1996-10-02

Family

ID=26642368

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1002758A NL1002758C2 (en) 1995-03-31 1996-04-01 Biodegradable prod. simple mfr. useful for a blown foamy structure - by passing a natural polymer at below gelatinisation temp. into or through a heated mould, for packaging for high dimensional stability

Country Status (1)

Country Link
NL (1) NL1002758C2 (en)

Also Published As

Publication number Publication date
NL1002758A1 (en) 1996-10-02

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
AD1A A request for search or an international type search has been filed
PD2A A request for search or an international type search has been filed
BV The patent application has lapsed
MK Patent expired because of reaching the maximum lifetime of a patent

Effective date: 20160331