ES348143A2 - Process for producing a cellular product from expanded pearls of synthetic resin - Google Patents

Process for producing a cellular product from expanded pearls of synthetic resin

Info

Publication number
ES348143A2
ES348143A2 ES348143A ES348143A ES348143A2 ES 348143 A2 ES348143 A2 ES 348143A2 ES 348143 A ES348143 A ES 348143A ES 348143 A ES348143 A ES 348143A ES 348143 A2 ES348143 A2 ES 348143A2
Authority
ES
Spain
Prior art keywords
beads
heated
pair
pearls
expanded
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
ES348143A
Other languages
Spanish (es)
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
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 Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Publication of ES348143A2 publication Critical patent/ES348143A2/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
    • C08J9/16—Making expandable particles
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • 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
    • B29C44/08—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 using several expanding or moulding steps
    • 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
    • B29C44/206—Using expandable particles or beads as starting material
    • 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
    • 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
    • B29C44/26—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 using several expanding steps
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
    • 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
    • C08J9/36—After-treatment
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Building Environments (AREA)

Abstract

A cellular synthetic resin product is made from expanded pearls by heating the latter to their softening temperature, compressing to impart the required thickness and final density of the product and cooling under compression sufficient to maintain the thickness. The beads can be heated by hot air or by steam under pressure. During compression, the pearls are kept at the temperature reached during heating. The apparent density must be selected in dependence on the final density of the product required. For a given final density the most favourable ratio between it and the apparent density is from 0.4 to 0.6, preferably 0.5. The density of the expanded pearls used is not more than 5 kg/m.3. The process may be carried out continuously or discontinuously. When the process is carried out discontinuously the expanded pearls are introduced into a mould having a perforated bottom and a movable perforated cover The beads are heated by blowing air through the mould at a temperature higher than the softening temperature of the beads, compressed by lowering the cover, and cooled. To carry out the continuous process the beads are introduced from a hopper between two conveyer belts and are heated by hot air. This first pair of conveyers may be parallel or slightly inclined to one another to effect some compression of the beads. The beads then pass between a second pair of belts which are parallel and more narrowly spaced than the first pair so that the beads are compressed. The beads are heated by hot air in the first section of the space between the second pair of belts and cooled in the second section. The only example given is of the production of a cellular synthetic product from expanded polystyrene beads.
ES348143A 1965-04-15 1967-12-11 Process for producing a cellular product from expanded pearls of synthetic resin Expired ES348143A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR13377A FR1440106A (en) 1965-04-15 1965-04-15 Process and devices for obtaining cellular products in thermoplastic resin
FR83268A FR91244E (en) 1965-04-15 1966-11-10 Process and devices for obtaining cellular products in thermoplastic resin
FR87044A FR92122E (en) 1965-04-15 1966-12-12 Process and devices for obtaining cellular products in thermoplastic resin

Publications (1)

Publication Number Publication Date
ES348143A2 true ES348143A2 (en) 1969-03-16

Family

ID=27242082

Family Applications (1)

Application Number Title Priority Date Filing Date
ES348143A Expired ES348143A2 (en) 1965-04-15 1967-12-11 Process for producing a cellular product from expanded pearls of synthetic resin

Country Status (14)

Country Link
JP (2) JPS5233151B1 (en)
AT (3) AT301854B (en)
BE (3) BE679070A (en)
CH (2) CH459555A (en)
DE (4) DE1629321B2 (en)
DK (1) DK127234B (en)
ES (1) ES348143A2 (en)
FI (2) FI46702C (en)
FR (3) FR1440106A (en)
GB (3) GB1093238A (en)
LU (2) LU50900A1 (en)
NL (2) NL6604171A (en)
NO (1) NO141338C (en)
SE (2) SE399010B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2119827B1 (en) * 1970-12-14 1974-04-26 Lambert Freres & Cie
CA1011070A (en) * 1972-05-30 1977-05-31 Richard H. Immel Method for bonding expanded polymeric parts
SE7412287L (en) * 1974-09-30 1976-03-31 Gullfiber Ab DEVICE FOR THE MANUFACTURE OF POROS THERMOPLASTIC BLOCKS IN CONTINUOUS PROCEDURE
JPS5396639U (en) * 1977-01-10 1978-08-05
FR2529826A1 (en) * 1982-07-09 1984-01-13 Elf Isolation Continuous process for the moulding of panels or of cellular plates from pre-expanded granules of thermoplastic material and device for the implementation of the said process.
DE3416985A1 (en) * 1984-05-08 1985-11-14 Held, Kurt, 7218 Trossingen METHOD AND DEVICE FOR CONTINUOUSLY PRESSING MATERIAL RAILS
JP2002331541A (en) * 2001-05-11 2002-11-19 Araco Corp Method and apparatus for manufacturing molding
CZ305936B6 (en) * 2012-05-10 2016-05-11 Novopol A.S. Expanded polystyrene molding and process for producing moldings of expanded polystyrene
CZ305937B6 (en) * 2012-05-10 2016-05-11 Novopol A.S. Process for producing moldings

Also Published As

Publication number Publication date
AT301854B (en) 1972-09-25
NL6716789A (en) 1968-06-13
LU50900A1 (en) 1966-10-14
DE1753811C3 (en) 1978-11-09
GB1181889A (en) 1970-02-18
SE399010B (en) 1978-01-30
FI46702C (en) 1973-06-11
NL6604171A (en) 1966-10-17
DE1704557B2 (en) 1978-10-12
DE1753811B2 (en) 1978-02-09
BE706296A (en) 1968-05-09
DE1704553B2 (en) 1978-05-24
CH459555A (en) 1968-07-15
NO141338C (en) 1980-02-20
LU55063A1 (en) 1968-08-27
AT319575B (en) 1974-12-27
FI49372B (en) 1975-02-28
DE1704553A1 (en) 1972-03-09
NO141338B (en) 1979-11-12
FI49372C (en) 1975-06-10
AT308383B (en) 1973-07-10
DE1704557C3 (en) 1979-07-26
DE1704553C3 (en) 1979-01-18
JPS4843944B1 (en) 1973-12-21
DE1629321B2 (en) 1975-12-04
DE1704557A1 (en) 1972-03-09
BE679070A (en) 1966-10-05
SE395239B (en) 1977-08-08
JPS5233151B1 (en) 1977-08-26
CH456131A (en) 1968-05-15
GB1093238A (en) 1967-11-29
BE707817A (en) 1968-06-11
FR92122E (en) 1968-09-27
DE1753811A1 (en) 1974-05-30
FR1440106A (en) 1966-05-27
FI46702B (en) 1973-02-28
GB1148940A (en) 1969-04-16
DK127234B (en) 1973-10-08
FR91244E (en) 1968-05-03
DE1629321A1 (en) 1971-02-04

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