GB1304808A - - Google Patents
Info
- Publication number
- GB1304808A GB1304808A GB2279471A GB2279471A GB1304808A GB 1304808 A GB1304808 A GB 1304808A GB 2279471 A GB2279471 A GB 2279471A GB 2279471 A GB2279471 A GB 2279471A GB 1304808 A GB1304808 A GB 1304808A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cavity
- mould
- cooling
- compound
- probe
- 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
- B29C44/02—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
- B29C44/04—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0407—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities by regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer
-
- 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
- B29C44/3419—Quick cooling
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- 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
- B29K2105/043—Skinned foam
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
- B29L2031/5209—Toys
- B29L2031/5218—Dolls, puppets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
1304808 Moulding hollow foamed articles MATTEL Inc 19 April 1971 [2 March 1970] 22794/71 Heading B5A A method of moulding a foamed plastics product comprises placing a moulding compound in a mould, heating the mould to foam the compound to fill the mould and to leave a cavity within the product, cooling the mould and directing a cooling gas into the cavity to set the cavity wall before removing the product. A doll body having an outer skin 21 and a foamed portion 23 is produced in a mould 11 having a closure cap 15; a cavity 25 remains after full expansion of the compound and after mould cooling. A tubular probe 29 is inserted into the cavity and a cooling gas, e.g. air, is supplied to the cavity via apertures 33. Such gas escapes from the cavity via passages formed between the probe and the body. A gas escape passage may be provided by a tube connected to and extending parallel to the probe.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1565470A | 1970-03-02 | 1970-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1304808A true GB1304808A (en) | 1973-01-31 |
Family
ID=21772700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2279471A Expired GB1304808A (en) | 1970-03-02 | 1971-04-19 |
Country Status (5)
Country | Link |
---|---|
BR (1) | BR7101265D0 (en) |
CA (1) | CA940678A (en) |
DE (1) | DE2109633A1 (en) |
FR (1) | FR2128032A1 (en) |
GB (1) | GB1304808A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5049056A (en) * | 1990-03-14 | 1991-09-17 | Nitrojection Corporation | Gas supply sprue bushing for injection molding machines |
JP3376751B2 (en) * | 1995-03-30 | 2003-02-10 | 豊田合成株式会社 | Method and apparatus for manufacturing resin hollow body |
-
1971
- 1971-02-22 CA CA105,962A patent/CA940678A/en not_active Expired
- 1971-03-01 BR BR126571A patent/BR7101265D0/en unknown
- 1971-03-01 DE DE19712109633 patent/DE2109633A1/en active Pending
- 1971-03-01 FR FR7106937A patent/FR2128032A1/fr not_active Withdrawn
- 1971-04-19 GB GB2279471A patent/GB1304808A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA940678A (en) | 1974-01-29 |
BR7101265D0 (en) | 1973-03-08 |
DE2109633A1 (en) | 1972-09-07 |
FR2128032A1 (en) | 1972-10-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |