JPS5678951A - Preparation of building panel - Google Patents

Preparation of building panel

Info

Publication number
JPS5678951A
JPS5678951A JP15625979A JP15625979A JPS5678951A JP S5678951 A JPS5678951 A JP S5678951A JP 15625979 A JP15625979 A JP 15625979A JP 15625979 A JP15625979 A JP 15625979A JP S5678951 A JPS5678951 A JP S5678951A
Authority
JP
Japan
Prior art keywords
molding
projections
back surface
mold
upper mold
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
JP15625979A
Other languages
Japanese (ja)
Other versions
JPS6365489B2 (en
Inventor
Teruo Matsumura
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP15625979A priority Critical patent/JPS5678951A/en
Publication of JPS5678951A publication Critical patent/JPS5678951A/en
Publication of JPS6365489B2 publication Critical patent/JPS6365489B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

PURPOSE:To reduce the generation of air voids by a method wherein a foamable synthetic resin is poured between a lower mold for molding a surface portion and an upper mold having a recessed groove provided to an inner surface thereof for molding a back surface portion and, after foaming and molding, a portion of projections on a back surface of the molded product is shaved. CONSTITUTION:On a lower mold 1 for molding the surface portion having a pattern molding portion provided to inner surface thereof and having a silicone rubber mold 7 mounted therein along an inner surface thereof, the upper mold 3 for molding the back surface portion having, for example, a grid like recessed groove 2 provided to an inner surface thereof is placed and the foamable synthetic resin 4 such as an urethane resin or the like is poured into the interior thereof and heated and foamed to form projections 6 on the back surface of the foamed molded product 5. This molded product 5 having the projections 6 is taken out from the upper mold 3 and the lower mold 1 and, thereafter, upper surfaces of the projections 6 are shaved by sanding to adjust the thickness thereof to produce the building panel. Thereby, because a gas can be vented from the recessed portion of the upper mold, the generation of air voids is reduced and the appearance is enhanced.
JP15625979A 1979-11-30 1979-11-30 Preparation of building panel Granted JPS5678951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15625979A JPS5678951A (en) 1979-11-30 1979-11-30 Preparation of building panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15625979A JPS5678951A (en) 1979-11-30 1979-11-30 Preparation of building panel

Publications (2)

Publication Number Publication Date
JPS5678951A true JPS5678951A (en) 1981-06-29
JPS6365489B2 JPS6365489B2 (en) 1988-12-15

Family

ID=15623879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15625979A Granted JPS5678951A (en) 1979-11-30 1979-11-30 Preparation of building panel

Country Status (1)

Country Link
JP (1) JPS5678951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59166920U (en) * 1983-04-25 1984-11-08 日本軽金属株式会社 Panel modification tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211338A (en) * 1975-07-18 1977-01-28 Hitachi Ltd Multiple carbureter of variable stage type

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211338A (en) * 1975-07-18 1977-01-28 Hitachi Ltd Multiple carbureter of variable stage type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59166920U (en) * 1983-04-25 1984-11-08 日本軽金属株式会社 Panel modification tool

Also Published As

Publication number Publication date
JPS6365489B2 (en) 1988-12-15

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