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JPS5766941A - Production of plastic article - Google Patents

Production of plastic article

Info

Publication number
JPS5766941A
JPS5766941A JP14354780A JP14354780A JPS5766941A JP S5766941 A JPS5766941 A JP S5766941A JP 14354780 A JP14354780 A JP 14354780A JP 14354780 A JP14354780 A JP 14354780A JP S5766941 A JPS5766941 A JP S5766941A
Authority
JP
Japan
Prior art keywords
parting
metal die
sheet
resin
pack type
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.)
Pending
Application number
JP14354780A
Other languages
Japanese (ja)
Inventor
Yuzo Nakamura
Kazuhiro Tachibana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIHON SHIYASHIN INSATSU KK
Nissha Printing Co Ltd
Original Assignee
NIHON SHIYASHIN INSATSU KK
Nissha Printing Co Ltd
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
Application filed by NIHON SHIYASHIN INSATSU KK, Nissha Printing Co Ltd filed Critical NIHON SHIYASHIN INSATSU KK
Priority to JP14354780A priority Critical patent/JPS5766941A/en
Publication of JPS5766941A publication Critical patent/JPS5766941A/en
Pending legal-status Critical Current

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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/68—Release sheets
    • 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
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/60—Releasing, lubricating or separating agents
    • B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To facilitate discharge of a molded article from a metal die in RIM molding method, by injecting two-pack type reacting resin into the metal die on which a parting sheet is mounted. CONSTITUTION:A parting sheet prepared by putting a parting agent layer (acrylic resin, chlorinated rubber resin or the like) on a substrate sheet (nylon, polypropyrene or the like) is located iside a metal die in a manner such that the parting agent layer comes in contact with two-pack type reacting resin. Thereafter,the metal die is closed, and the two-pack type reacting resin is injection-molded. That is, operation for applying a parting agent can be eliminated being replaced by the parting sheet only. Thus, the process is contracted. In addition, if a pattern such as emboss or frost is formed on the substrate sheet, the pattern can be easily transfered onto the surface of the RIM-molded article.
JP14354780A 1980-10-13 1980-10-13 Production of plastic article Pending JPS5766941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14354780A JPS5766941A (en) 1980-10-13 1980-10-13 Production of plastic article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14354780A JPS5766941A (en) 1980-10-13 1980-10-13 Production of plastic article

Publications (1)

Publication Number Publication Date
JPS5766941A true JPS5766941A (en) 1982-04-23

Family

ID=15341278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14354780A Pending JPS5766941A (en) 1980-10-13 1980-10-13 Production of plastic article

Country Status (1)

Country Link
JP (1) JPS5766941A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63112123A (en) * 1986-10-31 1988-05-17 Nippon Zeon Co Ltd Method for reaction injection molding
JPH02301413A (en) * 1989-05-16 1990-12-13 Nabitasu Kk Simultaneous molding transfer method for resin molded product
EP1177880A1 (en) * 2000-08-03 2002-02-06 Recticel Reaction injection moulding process for the production of a polyurethane skin layer
JP2007120680A (en) * 2005-10-28 2007-05-17 Sun Wave Ind Co Ltd Joint tool
JP2007120679A (en) * 2005-10-28 2007-05-17 Sun Wave Ind Co Ltd Plate material joint structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5079568A (en) * 1973-11-16 1975-06-28
JPS52151360A (en) * 1976-06-10 1977-12-15 Toyo Rubber Chemical Ind Co Process for manufacture of foamed product
JPS5411960A (en) * 1977-06-30 1979-01-29 Toyoda Gosei Co Ltd Production of synthetic resin molded product with uneven pattern on the surface

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5079568A (en) * 1973-11-16 1975-06-28
JPS52151360A (en) * 1976-06-10 1977-12-15 Toyo Rubber Chemical Ind Co Process for manufacture of foamed product
JPS5411960A (en) * 1977-06-30 1979-01-29 Toyoda Gosei Co Ltd Production of synthetic resin molded product with uneven pattern on the surface

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63112123A (en) * 1986-10-31 1988-05-17 Nippon Zeon Co Ltd Method for reaction injection molding
JPH02301413A (en) * 1989-05-16 1990-12-13 Nabitasu Kk Simultaneous molding transfer method for resin molded product
EP1177880A1 (en) * 2000-08-03 2002-02-06 Recticel Reaction injection moulding process for the production of a polyurethane skin layer
WO2002011974A1 (en) * 2000-08-03 2002-02-14 Recticel Process for the production of a layer part, in particular a reaction injection moulding process for the production of a polyurethane skin layer
US6998085B2 (en) 2000-08-03 2006-02-14 Recticel Process for the production of a layer part, in particular a reaction injection moulding process for the production of a polyurethane skin layer
JP2007120680A (en) * 2005-10-28 2007-05-17 Sun Wave Ind Co Ltd Joint tool
JP2007120679A (en) * 2005-10-28 2007-05-17 Sun Wave Ind Co Ltd Plate material joint structure

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