JPS5725910A - Manufacture of polyolefin series resin plate having different thicknesses - Google Patents

Manufacture of polyolefin series resin plate having different thicknesses

Info

Publication number
JPS5725910A
JPS5725910A JP9981080A JP9981080A JPS5725910A JP S5725910 A JPS5725910 A JP S5725910A JP 9981080 A JP9981080 A JP 9981080A JP 9981080 A JP9981080 A JP 9981080A JP S5725910 A JPS5725910 A JP S5725910A
Authority
JP
Japan
Prior art keywords
resin
pressure
product
manufacture
different thicknesses
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
JP9981080A
Other languages
Japanese (ja)
Inventor
Shinji Kikuma
Takao Yamagishi
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.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP9981080A priority Critical patent/JPS5725910A/en
Publication of JPS5725910A publication Critical patent/JPS5725910A/en
Pending legal-status Critical Current

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To manufacture the resin plate having the parts of different thicknesses with good operability and a quick turnover, by inserting a raw material together with a preliminarily formed resin body having a special shape into metal molds having concave and convex parts, and applying heat and pressure.
CONSTITUTION: A resin product 1, which has thick parts 2 at the outer periphery and thin part 3 at the concave central part 4, is to be formed. In the metal molds (a) and (a') having the convex parts (c) and (c') at the center, are inserted the resin forming body 11 and the raw resin material (pellet) 20. A cutout cavity 12 is provided at the center of said resin forming body 11, which is to become the product 1. Heat and pressure are applied to the metal molds (a) and (a'), and the pellet 20 is melted. The melted material is filled at the periphery of the resin forming body 11. Then the clamping pressure is further applied, while heating is continued for a specified time with the pressure maintained. Then the molds (a) and (a') are cooled, the resin is solidified, and the product 1 is taken out.
COPYRIGHT: (C)1982,JPO&Japio
JP9981080A 1980-07-23 1980-07-23 Manufacture of polyolefin series resin plate having different thicknesses Pending JPS5725910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9981080A JPS5725910A (en) 1980-07-23 1980-07-23 Manufacture of polyolefin series resin plate having different thicknesses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9981080A JPS5725910A (en) 1980-07-23 1980-07-23 Manufacture of polyolefin series resin plate having different thicknesses

Publications (1)

Publication Number Publication Date
JPS5725910A true JPS5725910A (en) 1982-02-10

Family

ID=14257207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9981080A Pending JPS5725910A (en) 1980-07-23 1980-07-23 Manufacture of polyolefin series resin plate having different thicknesses

Country Status (1)

Country Link
JP (1) JPS5725910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131415A (en) * 1983-01-18 1984-07-28 Mitsubishi Plastics Ind Ltd Preparation of crystal resin platelike object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59131415A (en) * 1983-01-18 1984-07-28 Mitsubishi Plastics Ind Ltd Preparation of crystal resin platelike object
JPH0348850B2 (en) * 1983-01-18 1991-07-25 Mitsubishi Plastics Ind

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