Patent · US Active

Separation membrane element

US9724646B2 · kind B2 · utility

15Cited by

2References

9Claims

0Family size

Assignee

TORAY INDUSTRIES, INC. · JP

Inventors

Yoshiki Okamoto · Kochi, JP
Masakazu Koiwa · Ohara, JP
Hiroyuki Yamada · Iwata, JP
Kentaro Takagi · Otsu, JP
Hiroho Hirozawa · Moriyama, JP
Tsuyoshi Hamada · Otsu, JP
Masahiro Kimura · Taumarunui, NZ

Key dates

Filing date	Jun 28, 2013
Grant date	Aug 8, 2017
Priority date	—
Expiry date	Mar 15, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2103/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A separation membrane element includes a water collecting pipe, a separation membrane main body having a feed-side face and a permeate-side face, a feed-side channel material and permeate-side channel materials. The separation membrane main body, the feed-side channel material and the permeate-side channel materials are spirally wound around the water collecting tube. A plurality of the permeate-side channel materials are discontinuously provided on the permeate-side face of the separation membrane main body, along a first direction that is a longitudinal direction of the water collecting pipe. The feed-side channel material has a thickness of from 0.15 to 0.5 mm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.