GB1338944A - Moulded foam plastics articles having zones of differing density - Google Patents

Moulded foam plastics articles having zones of differing density

Info

Publication number
GB1338944A
GB1338944A GB5311871A GB5311871A GB1338944A GB 1338944 A GB1338944 A GB 1338944A GB 5311871 A GB5311871 A GB 5311871A GB 5311871 A GB5311871 A GB 5311871A GB 1338944 A GB1338944 A GB 1338944A
Authority
GB
United Kingdom
Prior art keywords
zones
differing density
foam plastics
nov
foam
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
GB5311871A
Other languages
English (en)
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 GB1338944A publication Critical patent/GB1338944A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping 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
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1209Incorporating or moulding on preformed parts, e.g. inserts or reinforcements by impregnating a preformed part, e.g. a porous lining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping 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
    • B29C44/04Shaping 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
    • B29C44/0415Shaping 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 pressure of the material during or after filling of the mould, e.g. by local venting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34Auxiliary operations
    • B29C44/3403Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Nonwoven Fabrics (AREA)
GB5311871A 1970-11-18 1971-11-16 Moulded foam plastics articles having zones of differing density Expired GB1338944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702056650 DE2056650A1 (de) 1970-11-18 1970-11-18 Verfahren zum Herstellen von Schaum stoffkorpern mit Zonen unterschiedlicher Dichte und nach dem Verfahren hergestellter Schaumstoffkorper

Publications (1)

Publication Number Publication Date
GB1338944A true GB1338944A (en) 1973-11-28

Family

ID=5788427

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5311871A Expired GB1338944A (en) 1970-11-18 1971-11-16 Moulded foam plastics articles having zones of differing density

Country Status (6)

Country Link
BE (1) BE775437A (cs)
DE (1) DE2056650A1 (cs)
FR (1) FR2115240A1 (cs)
GB (1) GB1338944A (cs)
IT (1) IT942559B (cs)
NL (1) NL7115930A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642003A1 (fr) * 1989-01-21 1990-07-27 Bbs Autoteile Piece expansee contenant une bande feutree, son procede et son dispositif de fabrication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55150333A (en) * 1979-05-11 1980-11-22 Nisshinbo Ind Inc Manufacturing of fiber reinforced resin foaming body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642003A1 (fr) * 1989-01-21 1990-07-27 Bbs Autoteile Piece expansee contenant une bande feutree, son procede et son dispositif de fabrication
GB2228484A (en) * 1989-01-21 1990-08-29 Bbs Autoteile Foamed component

Also Published As

Publication number Publication date
NL7115930A (cs) 1972-05-23
FR2115240A1 (cs) 1972-07-07
BE775437A (cs) 1972-03-16
DE2056650A1 (de) 1972-05-25
IT942559B (it) 1973-04-02

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees