Title:
PIPING
Document Type and Number:
Japanese Patent JP2022189037
Kind Code:
A
Abstract:
To provide piping which is usable as hot water piping and has heat resistance, heat insulation property and strength.SOLUTION: Piping has an outer layer, an inner layer and an intermediate layer, wherein the inner layer and the outer layer are non-foamable chlorinated vinyl chloride-based resins, and the intermediate layer is a foam molding obtained by molding a chlorinated vinyl chloride-based resin, a copolymer having an aromatic vinyl monomer and an unsaturated nitrile as structural units, and foamable resin particles containing a foaming agent.SELECTED DRAWING: None
Inventors:
SUMI WATARU
NAKAMICHI MIKIYOSHI
NAKAMICHI MIKIYOSHI
Application Number:
JP2021097372A
Publication Date:
December 22, 2022
Filing Date:
June 10, 2021
Export Citation:
Assignee:
KANEKA CORP
International Classes:
B32B1/08; B32B5/18; B32B27/30; C08J9/14; F16L9/12
Attorney, Agent or Firm:
Patent business corporation HARAKENZO WORLD PATENT & TRADEMARK