Title:
PIPE JOINT AND PIPING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2020/196318
Kind Code:
A1
Abstract:
A pipe joint (1) which comprises: a tubular main body part (10) that has a flow path inside, while being formed of a resin which contains a copolymer that has one or more monomer units selected from among vinyl cyanide monomer units and acrylic monomer units, a rubber component and an aromatic vinyl monomer unit; and one or more socket parts (20a) that are integrally formed with the main body part (10). This pipe joint (1) is configured such that: the main body part (10) has a resin foam layer (30) and a non-resin-foam layer (50) that covers the resin foam layer (30); the content of the rubber component in the resin foam layer (30) is within a specific range and the content of the rubber component in the non-resin-foam layer (50) is within a specific range as determined by pyrolysis gas chromatography mass spectrometry; and the ratio of the length (La) from a base end (21a) to an opening end (22a) of a socket part (20a) to the thickness (da) of the socket part (20a) at the opening end (22a), namely La/da is from 2.0 to 10.0 (inclusive).
Inventors:
HISASHUKU DAIKI (JP)
Application Number:
PCT/JP2020/012452
Publication Date:
October 01, 2020
Filing Date:
March 19, 2020
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD (JP)
International Classes:
C08J9/04; E03C1/12; F16L47/00; F16L47/06; F16L47/20; F16L47/32; F16L59/02; G01N30/72; G01N30/88
Domestic Patent References:
| WO2019065834A1 | 2019-04-04 |
Foreign References:
| JP2019173968A | 2019-10-10 |
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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