JPS63194071U - - Google Patents

Info

Publication number

JPS63194071U

JPS63194071U JP8604087U JP8604087U JPS63194071U JP S63194071 U JPS63194071 U JP S63194071U JP 8604087 U JP8604087 U JP 8604087U JP 8604087 U JP8604087 U JP 8604087U JP S63194071 U JPS63194071 U JP S63194071U

Authority

JP

Japan

Prior art keywords

inner layer

polyurethane resin

hard polyurethane

layer made

wheel

Prior art date

1987-06-02

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

• 239000010410 layer Substances 0.000 claims description 3
• 239000011162 core material Substances 0.000 claims description 2
• 239000002344 surface layer Substances 0.000 claims description 2
• 229920005749 polyurethane resin Polymers 0.000 claims 2
• 238000000465 moulding Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 1
• 238000006073 displacement reaction Methods 0.000 description 1

Cited By (2)