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
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.
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)
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)
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)
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. |
-
1967
- 1967-11-14 FR FR1552124D patent/FR1552124A/fr not_active Expired
-
1968
- 1968-08-07 SE SE10658/68A patent/SE365455B/xx unknown
- 1968-08-17 NO NO324068A patent/NO131921C/no unknown
- 1968-09-06 FI FI250968A patent/FI50945C/en active
- 1968-09-19 NL NL6813408A patent/NL161482C/en not_active IP Right Cessation
- 1968-09-25 GB GB1228450D patent/GB1228450A/en not_active Expired
- 1968-09-27 IE IE116168A patent/IE32389B1/en unknown
- 1968-10-28 DE DE19681805694 patent/DE1805694A1/en active Pending
- 1968-11-12 LU LU57300D patent/LU57300A1/xx unknown
- 1968-11-12 BE BE723723D patent/BE723723A/xx not_active IP Right Cessation
- 1968-11-14 ES ES360271A patent/ES360271A1/en not_active Expired
Cited By (1)
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 |