GB1228450A - - Google Patents

Info

Publication number
GB1228450A
GB1228450A GB1228450DA GB1228450A GB 1228450 A GB1228450 A GB 1228450A GB 1228450D A GB1228450D A GB 1228450DA GB 1228450 A GB1228450 A GB 1228450A
Authority
GB
United Kingdom
Prior art keywords
granules
polystyrene
articles
atmospheric pressure
partly 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
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 filed Critical
Publication of GB1228450A publication Critical patent/GB1228450A/en
Expired legal-status Critical Current

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
    • B29C44/34—Auxiliary operations
    • B29C44/3461—Making or treating expandable particles
    • 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

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1,228,450. Polymer pearls and articles expanded with steam. COMPAGNIE DE SAINT GOBAIN. 25 Sept., 1968 [14 Nov., 1967], No. 45556/68. Headings C3C, C3P and C3R. Pearls are made from expansible thermoplastic material, e.g. polystyrene or a polysul. phone, or an article made of agglomerated, partly expanded granules of the material is enlarged, by applying superheated steam at atmospheric pressure to partly expanded granules of the material or article made thereof, the granules containing a blowing agent. The partly expanded granules may be made by subjecting expansible granules of polystyrene to a first superheated steam treatment at atmospheric pressure. The articles may be in the form of a panel, strip or moulded piece. An apparatus for carrying out the process is described and illustrated in Fig. 2.
GB1228450D 1967-11-14 1968-09-25 Expired GB1228450A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR128061 1967-11-14

Publications (1)

Publication Number Publication Date
GB1228450A true GB1228450A (en) 1971-04-15

Family

ID=8641655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228450D Expired GB1228450A (en) 1967-11-14 1968-09-25

Country Status (11)

Country Link
BE (1) BE723723A (en)
DE (1) DE1805694A1 (en)
ES (1) ES360271A1 (en)
FI (1) FI50945C (en)
FR (1) FR1552124A (en)
GB (1) GB1228450A (en)
IE (1) IE32389B1 (en)
LU (1) LU57300A1 (en)
NL (1) NL161482C (en)
NO (1) NO131921C (en)
SE (1) SE365455B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889833A (en) * 1986-10-06 1989-12-26 Kuraray Co., Ltd. Granular inorganic moldings and a process for production thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2089931B1 (en) * 1992-08-10 1997-04-01 Alcaine Eduardo Diaz IMPROVEMENTS INTRODUCED IN A MASS MANUFACTURING PROCEDURE FOR THE MOLDING OF CONSTRUCTION PARTS
DE102019127708A1 (en) * 2019-10-15 2021-04-15 Kurtz Gmbh Method and device for sorting and / or measuring the amount of foam particles
DE102019215878B4 (en) * 2019-10-15 2023-11-30 Adidas Ag Method and device for sorting and/or measuring the amount of foam particles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074854B (en) * 1960-02-04 zugl.* Process for the pretreatment of plastics containing blowing agents
US3386716A (en) * 1965-03-05 1968-06-04 Kohler General Inc Apparatus for prefoaming of expandable synthetic resin such as styrene polymer composition containing a volatile organic liquid
FR93618E (en) * 1965-04-14 1969-04-25 Saint Gobain Process for obtaining expanded polystyrene beads.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889833A (en) * 1986-10-06 1989-12-26 Kuraray Co., Ltd. Granular inorganic moldings and a process for production thereof

Also Published As

Publication number Publication date
NO131921B (en) 1975-05-20
ES360271A1 (en) 1970-10-01
FI50945C (en) 1976-09-10
IE32389L (en) 1969-05-14
NL161482B (en) 1979-09-17
FI50945B (en) 1976-05-31
SE365455B (en) 1974-03-25
NL161482C (en) 1980-02-15
NO131921C (en) 1975-09-10
FR1552124A (en) 1969-01-03
IE32389B1 (en) 1973-07-11
DE1805694A1 (en) 1969-08-07
LU57300A1 (en) 1969-07-04
NL6813408A (en) 1969-05-19
BE723723A (en) 1969-05-12

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee