Title:
MULTILAYER PIPE
Document Type and Number:
Japanese Patent JP2022039611
Kind Code:
A
Abstract:
To provide a multilayer pipe that 1) can resist heat deformation during storage, 2) can suppress the occurrence of dripping, 3) can improve the fire resistance, and 4) can improve the impact resistance.SOLUTION: A multilayer pipe has an inner layer, an outer layer disposed outside the inner layer, and an intermediate layer disposed between the inner layer and the outer layer. The inner layer and the outer layer each include a crosslinked vinyl chloride resin. The intermediate layer includes a vinyl chloride resin and thermally-expandable graphite.SELECTED DRAWING: Figure 1
Inventors:
YAMAMOTO YOSHIHIRO
NAKANO HAJIME
NAKANO HAJIME
Application Number:
JP2020144732A
Publication Date:
March 10, 2022
Filing Date:
August 28, 2020
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
F16L9/12
Attorney, Agent or Firm:
特許業務法人 宮▲崎▼・目次特許事務所