The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2003
Filed:
Oct. 02, 2001
Satoshi Takeda, Nagoya, JP;
Osami Kato, Nagoya, JP;
Kenji Watari, Nagoya, JP;
Kenji Niikawa, Nagoya, JP;
Masamoto Uenishi, Otake, JP;
Hiroshi Tasaka, Nagoya, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
A hollow fiber membrane module and potting material can be used for chemical deaeration in a semiconductor production process, in printers, in a liquid crystal sealing process or in a chemical production process. A hollow fiber membrane module includes, as potting material , an epoxy resin cured product in which the weight change per unit surface area of a potting material test piece after immersing the test piece in a chemical for 6 months at room temperature is within the range of −20 to +20 mg/cm , and as housing , a polyolefin in which the weight change per unit surface area of a test piece after immersing the test piece in a chemical for 6 months at room temperature is within the range of −20 to +20 mg/cm , and the total metal content is 300 ppm or less. The module has a long service life when used for chemical treatment without leakage.