BR7604748A - Processo para a obtencao de uma folha leve e folha leve obtida por este processo - Google Patents
Processo para a obtencao de uma folha leve e folha leve obtida por este processoInfo
- Publication number
- BR7604748A BR7604748A BR7604748A BR7604748A BR7604748A BR 7604748 A BR7604748 A BR 7604748A BR 7604748 A BR7604748 A BR 7604748A BR 7604748 A BR7604748 A BR 7604748A BR 7604748 A BR7604748 A BR 7604748A
- Authority
- BR
- Brazil
- Prior art keywords
- light leaf
- obtaining
- light
- leaf
- leaf obtained
- Prior art date
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
- B29C44/56—After-treatment of articles, e.g. for altering the shape
-
- 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
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/008—Wide strips, e.g. films, webs
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7523222A FR2318725A1 (fr) | 1975-07-24 | 1975-07-24 | Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede |
FR7610740A FR2348039A2 (fr) | 1976-04-12 | 1976-04-12 | Procede d'obtention d'une feuille en polypropylene allege et feuille obtenue par ce procede |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7604748A true BR7604748A (pt) | 1977-08-02 |
Family
ID=26218997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7604748A BR7604748A (pt) | 1975-07-24 | 1976-07-21 | Processo para a obtencao de uma folha leve e folha leve obtida por este processo |
Country Status (10)
Country | Link |
---|---|
BR (1) | BR7604748A (pt) |
DE (1) | DE2633307A1 (pt) |
DK (1) | DK335376A (pt) |
ES (1) | ES450072A1 (pt) |
FI (1) | FI762121A (pt) |
IT (1) | IT1064130B (pt) |
LU (1) | LU75415A1 (pt) |
NL (1) | NL7608100A (pt) |
NO (1) | NO762577L (pt) |
PT (1) | PT65356B (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0725916B2 (ja) * | 1987-04-13 | 1995-03-22 | 三菱油化株式会社 | ポリプロピレン発泡体の製造方法 |
US5116881A (en) * | 1990-03-14 | 1992-05-26 | James River Corporation Of Virginia | Polypropylene foam sheets |
-
1976
- 1976-07-12 PT PT65356A patent/PT65356B/pt unknown
- 1976-07-16 IT IT50483/76A patent/IT1064130B/it active
- 1976-07-19 LU LU75415A patent/LU75415A1/xx unknown
- 1976-07-21 BR BR7604748A patent/BR7604748A/pt unknown
- 1976-07-22 NL NL7608100A patent/NL7608100A/xx not_active Application Discontinuation
- 1976-07-23 NO NO762577A patent/NO762577L/no unknown
- 1976-07-23 DE DE19762633307 patent/DE2633307A1/de active Pending
- 1976-07-23 DK DK335376A patent/DK335376A/da unknown
- 1976-07-23 FI FI762121A patent/FI762121A/fi not_active Application Discontinuation
- 1976-07-23 ES ES450072A patent/ES450072A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7608100A (nl) | 1977-01-26 |
IT1064130B (it) | 1985-02-18 |
ES450072A1 (es) | 1977-07-16 |
DE2633307A1 (de) | 1977-02-10 |
NO762577L (pt) | 1977-01-25 |
FI762121A (pt) | 1977-01-25 |
LU75415A1 (pt) | 1977-04-06 |
PT65356B (fr) | 1978-01-09 |
PT65356A (fr) | 1976-08-01 |
DK335376A (da) | 1977-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B15K | Others concerning applications: alteration of classification |
Ipc: B29C 47/00 (2010.01), B29C 51/00 (2010.01), B29D 7 |