JPS6416620A - Confirmation of material flow route in reaction injection molding - Google Patents

Confirmation of material flow route in reaction injection molding

Info

Publication number
JPS6416620A
JPS6416620A JP17353287A JP17353287A JPS6416620A JP S6416620 A JPS6416620 A JP S6416620A JP 17353287 A JP17353287 A JP 17353287A JP 17353287 A JP17353287 A JP 17353287A JP S6416620 A JPS6416620 A JP S6416620A
Authority
JP
Japan
Prior art keywords
mixer
injection molding
color paste
mold
reaction injection
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.)
Granted
Application number
JP17353287A
Other languages
Japanese (ja)
Other versions
JPH0511731B2 (en
Inventor
Yasuyoshi Eguchi
Tamotsu Tanaka
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.)
Kanto Jidosha Kogyo KK
Toyota Motor East Japan Inc
Original Assignee
Kanto Jidosha Kogyo KK
Kanto Auto Works 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 Kanto Jidosha Kogyo KK, Kanto Auto Works Ltd filed Critical Kanto Jidosha Kogyo KK
Priority to JP17353287A priority Critical patent/JPS6416620A/en
Publication of JPS6416620A publication Critical patent/JPS6416620A/en
Publication of JPH0511731B2 publication Critical patent/JPH0511731B2/ja
Granted 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
    • 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]
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • B29K2995/0021—Multi-coloured

Landscapes

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

Abstract

PURPOSE:To visualize easily material routes such as the flow channel of resin material in a mold, the orientation of material reinforcement in a molded item etc., by performing a reaction injection molding, after a color paste different in color from the molded item, compatible with material and reactively curable, is prepared in advance in the runner part between mixing head and after-mixer. CONSTITUTION:A small quantity of the color paste composed of polyol kneaded with pigment is provided in a runner part 12 directly before after-mixer 14. Then, by operating a reaction injection molding machine both materials are mixed together during the pressing-and-sending process from mixing head 11 to after-mixer 13 and extruded into a mold 1. The color paste 20 is injected from the after-mixer 13 on the route to such an ertent that the paste may not be fully mixed with resin material and may disperse in it. During the extrusion into the mold 1, the color paste is mixed with isocyanate and cured in the reaction along the flow route from the position of dispersion at gate 15 and forms a striped pattern up to the end of the product.
JP17353287A 1987-07-11 1987-07-11 Confirmation of material flow route in reaction injection molding Granted JPS6416620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17353287A JPS6416620A (en) 1987-07-11 1987-07-11 Confirmation of material flow route in reaction injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17353287A JPS6416620A (en) 1987-07-11 1987-07-11 Confirmation of material flow route in reaction injection molding

Publications (2)

Publication Number Publication Date
JPS6416620A true JPS6416620A (en) 1989-01-20
JPH0511731B2 JPH0511731B2 (en) 1993-02-16

Family

ID=15962278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17353287A Granted JPS6416620A (en) 1987-07-11 1987-07-11 Confirmation of material flow route in reaction injection molding

Country Status (1)

Country Link
JP (1) JPS6416620A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347766A (en) * 1991-07-18 1994-09-20 Mitsui Toatsu Chemicals, Inc. Method for polishing surface of transparent substrate layer of color filter unit
US5541749A (en) * 1991-07-09 1996-07-30 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device
WO2001072861A3 (en) * 1999-11-12 2002-02-28 Ten Cate Enbi Internat Apparatus for mixing and injection molding thermosetting polyurethane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541749A (en) * 1991-07-09 1996-07-30 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device
US5347766A (en) * 1991-07-18 1994-09-20 Mitsui Toatsu Chemicals, Inc. Method for polishing surface of transparent substrate layer of color filter unit
WO2001072861A3 (en) * 1999-11-12 2002-02-28 Ten Cate Enbi Internat Apparatus for mixing and injection molding thermosetting polyurethane

Also Published As

Publication number Publication date
JPH0511731B2 (en) 1993-02-16

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