GB924767A - Production of porous shaped articles from thermoplastics - Google Patents

Production of porous shaped articles from thermoplastics

Info

Publication number
GB924767A
GB924767A GB28739/61A GB2873961A GB924767A GB 924767 A GB924767 A GB 924767A GB 28739/61 A GB28739/61 A GB 28739/61A GB 2873961 A GB2873961 A GB 2873961A GB 924767 A GB924767 A GB 924767A
Authority
GB
United Kingdom
Prior art keywords
acid esters
polyvinyl
polyvinyl chloride
porous shaped
polymethacrylic acid
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
GB28739/61A
Inventor
Fritz Stastny
Boris Ikert
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 GB924767A publication Critical patent/GB924767A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/236—Forming foamed products using binding agents
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/12—Dielectric heating
    • 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
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • 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
    • B29C44/3415—Heating or cooling
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
    • B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
    • 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
    • B29C70/28—Shaping operations therefor
    • 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
    • C08J9/0004—Use of compounding ingredients, the chemical constitution of which is unknown, broadly defined, or irrelevant
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/06—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using radiation, e.g. electro-magnetic waves, induction heating
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3814—Porous moulds
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Porous shaped thermoplastic articles are moulded in an electrical high frequency field (see Group V) from a water containing mixture of a finely particled expandable thermoplastic, e.g. polystyrene, polymethacrylic acid esters which contain blowing agents and may be partly expanded before moulding, and a high molecular weight substance as a binding agent, e.g. polyacrylic acid esters, polyvinyl ethers, polyvinyl chloride or vinyl acetate, methyl cellulose, natural adhesives, urea formaldehyde or phenol formaldehyde condensates.ALSO:Porous shaped thermoplastic articles which have a low density and high mechanical strength are moulded by heating in an electrical high frequency field and thus expanding a water containing mixture of a finely particled expandable thermoplastic e.g. polystyrene, polymethacrylic acid esters which contain blowing agents and may be partly expanded beforehand, and a high molecular weight substance as a binding agent e.g. polyacrylic acid esters, polyvinyl ethers, polyvinyl chloride or vinyl acetate, methyl cellulose, natural adhesives, urea formaldehyde or phenol formaldehyde condensates. The moulds which may be of polyvinyl chloride, polymethacrylic acid esters or wood may be perforated and to accelerate the expansion the steam formed may be sucked out from the mould. The mould may be coated with an adhesive e.g. polyvinyl propionate.
GB28739/61A 1960-08-17 1961-08-09 Production of porous shaped articles from thermoplastics Expired GB924767A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB59006A DE1256881B (en) 1960-08-17 1960-08-17 Process for the production of porous moldings from small-scale, expandable thermoplastics
DEB0070058 1962-12-19

Publications (1)

Publication Number Publication Date
GB924767A true GB924767A (en) 1963-05-01

Family

ID=25965717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28739/61A Expired GB924767A (en) 1960-08-17 1961-08-09 Production of porous shaped articles from thermoplastics

Country Status (5)

Country Link
BE (1) BE641497A (en)
CH (1) CH384856A (en)
DE (2) DE1256881B (en)
FR (2) FR1297604A (en)
GB (1) GB924767A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490658B1 (en) * 1980-09-23 1988-04-08 Stratiforme POLYCONDENSATION PROCESS OF A THERMOSETTING RESIN COMPOSITION

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941389C (en) * 1951-04-19 1956-04-12 Basf Ag Process for the production of porous moldings from thermoplastics
NL113706C (en) * 1957-12-27

Also Published As

Publication number Publication date
FR1297604A (en) 1962-06-29
DE1479981A1 (en) 1969-03-13
BE641497A (en) 1964-06-18
CH384856A (en) 1965-02-26
DE1256881B (en) 1967-12-21
FR84947E (en) 1965-05-07

Similar Documents

Publication Publication Date Title
GB836942A (en) Chipwood made material of high compressive strength and a method of producing the same
GB1234379A (en)
GB924767A (en) Production of porous shaped articles from thermoplastics
GB1056654A (en) Preparation of expandable thermoplastic resinous material
GB1026495A (en) Process for preparing foamed plastics
IE800185L (en) Pre-expanding thermoplastic resin.
AT304074B (en) Process for the production of fine-pored phenolic resin foams
GB891182A (en) Improvements in or relating to the moulding of concrete
FR2282988A1 (en) Expanded moulded polyvinyl chloride bodies prepn. - obviating adhesives, using polymer pearls impregnated with porogenic agents
ES311189A1 (en) A procedure for the manufacture of pressed parts of synthetic material particles. (Machine-translation by Google Translate, not legally binding)
CH374481A (en) Mold for the production of plastic foams under pressure
GB817270A (en) Improvements in the production of hollow moulded articles
ES377067A1 (en) Procedure for the manufacture of products of stable structure compounds of pre-foamed polyestirol particles. (Machine-translation by Google Translate, not legally binding)
JPS5591639A (en) Manufacture of foamed plastic product
GB954283A (en) Improvements in the making of moulded articles of foamed plastics materials
GB827736A (en) Improvements in or relating to the moulding of gunstocks having an expanded cellularcore
GB756555A (en) Improvements in or relating to the production of foamed plastic materials
GB1011483A (en) Process for the manufacture of foamed products from granular thermoplastic plastic, in particular granular polystyrene, containing blowing agent
JPS53129276A (en) Styrene resin particles and preparation of foamable styrene resin particles
GB824997A (en) Improvements in hollow moulded articles
GB1428334A (en) Process for making insulating materials of low combus tibility on the basis of foam-like urea formaldehyde resins
CA573324A (en) Method of making latent foaming thermoplastic resin compositions using dichlorodifluoromethane as the blowing agent
GB887831A (en) Improvements in or relating to hollow articles
FR1422015A (en) Process for preparing foamed thermoplastic materials, in particular polystyrene
ES482626A1 (en) A procedure for obtaining a polyolefine resin foam. (Machine-translation by Google Translate, not legally binding)