JPS6490714A - Reaction injection molding of fiber-reinforced polyurethane - Google Patents

Reaction injection molding of fiber-reinforced polyurethane

Info

Publication number
JPS6490714A
JPS6490714A JP24928087A JP24928087A JPS6490714A JP S6490714 A JPS6490714 A JP S6490714A JP 24928087 A JP24928087 A JP 24928087A JP 24928087 A JP24928087 A JP 24928087A JP S6490714 A JPS6490714 A JP S6490714A
Authority
JP
Japan
Prior art keywords
molded product
glass fiber
polyurethane
less
primer
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
JP24928087A
Other languages
Japanese (ja)
Inventor
Makoto Oya
Akinori Teranishi
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.)
Inoac Corp
Original Assignee
Inoue MTP KK
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 Inoue MTP KK filed Critical Inoue MTP KK
Priority to JP24928087A priority Critical patent/JPS6490714A/en
Publication of JPS6490714A publication Critical patent/JPS6490714A/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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • 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)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain smooth and excellent clear reflection properties, by a method wherein the mean diameter and a mean length of a glass fiber are specified and the surface of a molded product is treated with a two pack type primer. CONSTITUTION:The mean diameter and mean length of a glass fiber are made 6mum or less and 70mum or less respectively and the surface of a molded product is treated with a two pack primer, in a reaction injection molding of polyurethane comprised of by mixing the glass fiber with the polyurethane. As the mean diameter and mean length of the glass fiber to be mixed with the polyurethane are extremely short like 6mum or less and 70mum or less respectively, affection to be given to the surface of the molded product by an end of the same is extremely little. As the primer is of two-pack type one, a film thickness of the same is increased drastically to 35-40mum from conventional one of 15-20mum. Even with this construction, smoothness of the surface of the molded product is improved greatly. Therefore, the smoothness of the surface of the molded product is improved particularly through the foregoing two actions and the surface of the product after the final coating becomes smooth.
JP24928087A 1987-10-02 1987-10-02 Reaction injection molding of fiber-reinforced polyurethane Pending JPS6490714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24928087A JPS6490714A (en) 1987-10-02 1987-10-02 Reaction injection molding of fiber-reinforced polyurethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24928087A JPS6490714A (en) 1987-10-02 1987-10-02 Reaction injection molding of fiber-reinforced polyurethane

Publications (1)

Publication Number Publication Date
JPS6490714A true JPS6490714A (en) 1989-04-07

Family

ID=17190614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24928087A Pending JPS6490714A (en) 1987-10-02 1987-10-02 Reaction injection molding of fiber-reinforced polyurethane

Country Status (1)

Country Link
JP (1) JPS6490714A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007000C2 (en) * 1997-09-11 1999-03-12 Dsm Nv Method for the production of articles with a pleasant touch sensation.
JP2005054469A (en) * 2003-08-05 2005-03-03 Sekisui Chem Co Ltd Sleeper, formed article and laying method of the sleeper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007000C2 (en) * 1997-09-11 1999-03-12 Dsm Nv Method for the production of articles with a pleasant touch sensation.
WO1999013004A1 (en) * 1997-09-11 1999-03-18 Dsm N.V. Process for producing articles having a soft touch
JP2005054469A (en) * 2003-08-05 2005-03-03 Sekisui Chem Co Ltd Sleeper, formed article and laying method of the sleeper

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