JPS62139756U - - Google Patents

Info

Publication number

JPS62139756U

JPS62139756U JP2748886U JP2748886U JPS62139756U JP S62139756 U JPS62139756 U JP S62139756U JP 2748886 U JP2748886 U JP 2748886U JP 2748886 U JP2748886 U JP 2748886U JP S62139756 U JPS62139756 U JP S62139756U

Authority

JP

Japan

Prior art keywords

density

felt

layer compressed

molded ceiling

base material

Prior art date

1986-02-28

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

Links

• Espacenet
• Global Dossier
• Discuss

• 239000000463 material Substances 0.000 claims description 5
• 239000011347 resin Substances 0.000 claims 1
• 229920005989 resin Polymers 0.000 claims 1
• 229920001187 thermosetting polymer Polymers 0.000 claims 1
• 238000009423 ventilation Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 1
• 238000010030 laminating Methods 0.000 description 1
• 238000000034 method Methods 0.000 description 1