JPS5722093A - Manufacture of artificial clamshell "goishi" - Google Patents

Manufacture of artificial clamshell "goishi"

Info

Publication number
JPS5722093A
JPS5722093A JP9687780A JP9687780A JPS5722093A JP S5722093 A JPS5722093 A JP S5722093A JP 9687780 A JP9687780 A JP 9687780A JP 9687780 A JP9687780 A JP 9687780A JP S5722093 A JPS5722093 A JP S5722093A
Authority
JP
Japan
Prior art keywords
clamshell
stonelike
stone
manufacture
plastics
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
JP9687780A
Other languages
Japanese (ja)
Other versions
JPS6059877B2 (en
Inventor
Shigeru Motomiya
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP9687780A priority Critical patent/JPS6059877B2/en
Publication of JPS5722093A publication Critical patent/JPS5722093A/en
Publication of JPS6059877B2 publication Critical patent/JPS6059877B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Printing Methods (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To manufacture, with good reproducibility, an aritificial clamshell "go" stone which makes click sound closely similar to a real clamshell stone when placed on a "go" board, by forming into a "go" stonelike shape of a mixture of plastics and a filler of a specific gravity, and by printing clamshell pattern on thus formed stone.
CONSTITUTION: After adding a polymerized catalyst (such as benzoyl peroxide) to a mixture of 15W60wt% of plastics (such as unsaturated polyester resin) and 85W45wt% of a filler (such as BaSo4) having specific gravity of 2.5 or more, it is left as it is for a while to allow viscosity to rise so as to form a semisolid material. Then, thus formed material is put into a metallic mold which has a "go" stonelike cavity and has been heated up to 80W160°C in advance, and pressure of 5kg/cm2 or more is applied to form the material into "go" stonelike object. Then, clamshell pattern is transfer copied and printed onto the surface of the "go" stonelike object.
COPYRIGHT: (C)1982,JPO&Japio
JP9687780A 1980-07-17 1980-07-17 Method for manufacturing clam shell-like Go stones Expired JPS6059877B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9687780A JPS6059877B2 (en) 1980-07-17 1980-07-17 Method for manufacturing clam shell-like Go stones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9687780A JPS6059877B2 (en) 1980-07-17 1980-07-17 Method for manufacturing clam shell-like Go stones

Publications (2)

Publication Number Publication Date
JPS5722093A true JPS5722093A (en) 1982-02-04
JPS6059877B2 JPS6059877B2 (en) 1985-12-27

Family

ID=14176640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9687780A Expired JPS6059877B2 (en) 1980-07-17 1980-07-17 Method for manufacturing clam shell-like Go stones

Country Status (1)

Country Link
JP (1) JPS6059877B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527449U (en) * 1991-08-02 1993-04-09 株式会社竹村製作所 Check valve
JPH06109153A (en) * 1992-09-22 1994-04-19 Hirakawa Gaidamu:Kk Valve with relief valve and piping method using valve with relief valve

Also Published As

Publication number Publication date
JPS6059877B2 (en) 1985-12-27

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