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.:

US 6936684 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 30, 2005

Filed:

Jun. 11, 2003
Applicants:

Tadahito Nobori, Kanagawa-ken, JP;

Masahiro Kouno, Kanagawa-ken, JP;

Toshiaki Suzuki, Kyoto, JP;

Kazumi Mizutani, Kanagawa-ken, JP;

Shinji Kiyono, Kanagawa-ken, JP;

Yoshiho Sonobe, Kanagawa-ken, JP;

Usaji Takaki, Kanagawa-ken, JP;

Inventors:

Tadahito Nobori, Kanagawa-ken, JP;

Masahiro Kouno, Kanagawa-ken, JP;

Toshiaki Suzuki, Kyoto, JP;

Kazumi Mizutani, Kanagawa-ken, JP;

Shinji Kiyono, Kanagawa-ken, JP;

Yoshiho Sonobe, Kanagawa-ken, JP;

Usaji Takaki, Kanagawa-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G065/04 ; C08K005/5399 ;
U.S. Cl.
CPC ...
Abstract

A salt useful as an active species in an organic reaction and represented by the following chemical formula (1):wherein n stands for an integer of from 1 to 8, Zrepresents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. In addition, a simple and efficient process is provided for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).


Find Patent Forward Citations

Nobori, Tadahito. (2005). Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound (U.S. Patent No. 6936684). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6936684

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