DE1907387C - - Google Patents

Info

Publication number

DE1907387C

DE1907387C DE1907387C DE 1907387 C DE1907387 C DE 1907387C DE 1907387 C DE1907387 C DE 1907387C

Authority

DE

Germany

Prior art keywords

plastic

annular gap

nozzle

sleeve

outer layer

Prior art date

1971-07-15

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.)

Expired

Links

• Espacenet
• Global Dossier
• DPMA
• Discuss

• 229920003023 plastic Polymers 0.000 claims description 28
• 239000004033 plastic Substances 0.000 claims description 28
• 238000001125 extrusion Methods 0.000 claims description 13
• 238000011144 upstream manufacturing Methods 0.000 claims description 2
• 239000010410 layer Substances 0.000 description 37
• 238000004519 manufacturing process Methods 0.000 description 3
• 238000007789 sealing Methods 0.000 description 3
• 230000015572 biosynthetic process Effects 0.000 description 2
• 239000000463 material Substances 0.000 description 2
• 229920013716 polyethylene resin Polymers 0.000 description 2
• 239000011347 resin Substances 0.000 description 2
• 229920005989 resin Polymers 0.000 description 2
• 235000014277 Clidemia hirta Nutrition 0.000 description 1
• 241000069219 Henriettea Species 0.000 description 1
• 239000006229 carbon black Substances 0.000 description 1
• 239000002131 composite material Substances 0.000 description 1
• 238000010276 construction Methods 0.000 description 1
• 230000008878 coupling Effects 0.000 description 1
• 238000010168 coupling process Methods 0.000 description 1
• 238000005859 coupling reaction Methods 0.000 description 1
• 238000005553 drilling Methods 0.000 description 1
• 239000004744 fabric Substances 0.000 description 1
• 239000012535 impurity Substances 0.000 description 1
• 239000007788 liquid Substances 0.000 description 1
• 238000004091 panning Methods 0.000 description 1
• 239000012791 sliding layer Substances 0.000 description 1