BR8702360A - Processo de moldagem sequencial em camadas de diferentes materiais termoplasticos,aparelho de moldagem por coinjecao,estrutura de bocal,processo de injecao de uma pluralidade de resinas termoplasticas em uma cavidade de molde e artigo resinoso em camadas multiplas - Google Patents

Processo de moldagem sequencial em camadas de diferentes materiais termoplasticos,aparelho de moldagem por coinjecao,estrutura de bocal,processo de injecao de uma pluralidade de resinas termoplasticas em uma cavidade de molde e artigo resinoso em camadas multiplas

Info

Publication number
BR8702360A
BR8702360A BR8702360A BR8702360A BR8702360A BR 8702360 A BR8702360 A BR 8702360A BR 8702360 A BR8702360 A BR 8702360A BR 8702360 A BR8702360 A BR 8702360A BR 8702360 A BR8702360 A BR 8702360A
Authority
BR
Brazil
Prior art keywords
mold cavity
plastality
injection
layers
nozzle structure
Prior art date
Application number
BR8702360A
Other languages
English (en)
Inventor
Robert D Schad
Paul P Brown
Original Assignee
Husky Injection Molding
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25338090&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR8702360(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Husky Injection Molding filed Critical Husky Injection Molding
Publication of BR8702360A publication Critical patent/BR8702360A/pt

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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1603—Multi-way nozzles specially adapted 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C45/1643—Making multilayered or multicoloured articles having a "sandwich" structure from at least three different materials or with at least four layers
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1603—Multi-way nozzles specially adapted therefor
    • B29C2045/1609—Multi-way nozzles specially adapted therefor having independent heating or cooling means for each way
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C2045/1656—Injecting the skin material through the central passage of the multiway nozzle

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
BR8702360A 1986-05-12 1987-05-08 Processo de moldagem sequencial em camadas de diferentes materiais termoplasticos,aparelho de moldagem por coinjecao,estrutura de bocal,processo de injecao de uma pluralidade de resinas termoplasticas em uma cavidade de molde e artigo resinoso em camadas multiplas BR8702360A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/862,269 US4717324A (en) 1986-05-12 1986-05-12 Coinjection of hollow articles and preforms

Publications (1)

Publication Number Publication Date
BR8702360A true BR8702360A (pt) 1988-02-17

Family

ID=25338090

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8702360A BR8702360A (pt) 1986-05-12 1987-05-08 Processo de moldagem sequencial em camadas de diferentes materiais termoplasticos,aparelho de moldagem por coinjecao,estrutura de bocal,processo de injecao de uma pluralidade de resinas termoplasticas em uma cavidade de molde e artigo resinoso em camadas multiplas

Country Status (8)

Country Link
US (1) US4717324A (pt)
EP (1) EP0246512B1 (pt)
JP (1) JPS62268618A (pt)
AT (1) ATE111013T1 (pt)
AU (2) AU579768B2 (pt)
BR (1) BR8702360A (pt)
CA (1) CA1291610C (pt)
DE (1) DE3750489T2 (pt)

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Also Published As

Publication number Publication date
DE3750489D1 (de) 1994-10-13
US4717324A (en) 1988-01-05
AU4260389A (en) 1991-03-28
JPS62268618A (ja) 1987-11-21
DE3750489T2 (de) 1995-04-27
EP0246512A3 (en) 1988-11-30
JPH0416053B2 (pt) 1992-03-19
AU618409B2 (en) 1991-12-19
CA1291610C (en) 1991-11-05
EP0246512B1 (en) 1994-09-07
AU579768B2 (en) 1988-12-08
EP0246512A2 (en) 1987-11-25
ATE111013T1 (de) 1994-09-15
AU7268887A (en) 1987-12-10

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Legal Events

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FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law
HIX Notification cancelled
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

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