BR8003418A - Processo para a fabricacao de corpos moldados de materiais termoplasticos espumaveis - Google Patents

Processo para a fabricacao de corpos moldados de materiais termoplasticos espumaveis

Info

Publication number: BR8003418A
Authority: BR; Brazil
Prior art keywords: manufacture; thermoplastic materials; molded bodies; foamed thermoplastic; foamed
Prior art date: 1979-05-31

Application number

BR8003418A

Other languages

English (en)

Portuguese (pt)

Inventor

R Weidner

Original Assignee

Civag 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.)

1979-05-31

Filing date

1980-05-30

Publication date

1981-01-05

1980-05-30 Application filed by Civag Ag filed Critical Civag Ag

1981-01-05 Publication of BR8003418A publication Critical patent/BR8003418A/pt

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
- C08J9/232—Forming foamed products by sintering 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
- 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
- B29C44/3426—Heating by introducing steam in the mould
- 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
- 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
- B29K2025/04—Polymers of styrene
- B29K2025/06—PS, i.e. polystyrene
- 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

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)
Molding Of Porous Articles (AREA)

BR8003418A 1979-05-31 1980-05-30 Processo para a fabricacao de corpos moldados de materiais termoplasticos espumaveis BR8003418A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19792922315 DE2922315A1 (de)	1979-05-31	1979-05-31	Verfahren zur herstellung von schaeumbaren thermoplastischen kunststoffen

Publications (1)

Publication Number	Publication Date
BR8003418A true BR8003418A (pt)	1981-01-05

Family

ID=6072228

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8003418A BR8003418A (pt)	1979-05-31	1980-05-30	Processo para a fabricacao de corpos moldados de materiais termoplasticos espumaveis

Country Status (13)

Country	Link
JP (1)	JPS5628836A (sv)
BE (1)	BE883586A (sv)
BR (1)	BR8003418A (sv)
DE (1)	DE2922315A1 (sv)
ES (1)	ES492029A0 (sv)
FR (1)	FR2457881A1 (sv)
GB (1)	GB2051073A (sv)
IL (1)	IL60200A0 (sv)
IT (1)	IT1140984B (sv)
MA (1)	MA18863A1 (sv)
NL (1)	NL8003137A (sv)
PT (1)	PT71334A (sv)
SE (1)	SE8004058L (sv)

1979
- 1979-05-31 DE DE19792922315 patent/DE2922315A1/de not_active Withdrawn
- 1979-06-08 FR FR7914779A patent/FR2457881A1/fr active Granted
1980
- 1980-05-29 GB GB8017610A patent/GB2051073A/en not_active Withdrawn
- 1980-05-29 NL NL8003137A patent/NL8003137A/nl not_active Application Discontinuation
- 1980-05-30 PT PT71334A patent/PT71334A/pt unknown
- 1980-05-30 MA MA19061A patent/MA18863A1/fr unknown
- 1980-05-30 BE BE0/200852A patent/BE883586A/fr unknown
- 1980-05-30 IT IT22470/80A patent/IT1140984B/it active
- 1980-05-30 ES ES492029A patent/ES492029A0/es active Granted
- 1980-05-30 JP JP7163680A patent/JPS5628836A/ja active Pending
- 1980-05-30 IL IL60200A patent/IL60200A0/xx unknown
- 1980-05-30 SE SE8004058A patent/SE8004058L/sv unknown
- 1980-05-30 BR BR8003418A patent/BR8003418A/pt unknown

Also Published As

Publication number	Publication date
MA18863A1 (fr)	1980-12-31
FR2457881B3 (sv)	1982-05-21
IL60200A0 (en)	1980-07-31
DE2922315A1 (de)	1981-02-05
NL8003137A (nl)	1980-12-02
BE883586A (fr)	1980-09-15
IT1140984B (it)	1986-10-10
GB2051073A (en)	1981-01-14
IT8022470A0 (it)	1980-05-30
JPS5628836A (en)	1981-03-23
ES8102167A1 (es)	1980-12-16
FR2457881A1 (fr)	1980-12-26
SE8004058L (sv)	1980-12-01
PT71334A (en)	1980-06-01
ES492029A0 (es)	1980-12-16

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Legal Events

Date	Code	Title	Description
2018-03-27	B15K	Others concerning applications: alteration of classification	Ipc: C08J 9/232 (2006.01)