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Inventor:
Kouno; Masahiro
Address:
Kanagawa-ken, JP
No. of patents:
7
Patents:












Patent Number Title Of Patent Date Issued
6936684 Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound August 30, 2005
A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): ##STR1##wherein n stands for an integer of from 1 to 8, Z.sup.n- represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive inte
6022945 Process for production of propylene oxide/ethylene oxide block copolymers February 8, 2000
A catalyst for the polymerization of an alkylene oxide compound is disclosed. This catalyst is composed of a phosphazene compound or a phosphazenium salt which is derived from the phosphazene compound and an active hydrogen compound. A poly(alkylene oxide) can be efficiently produced
5990352 Phosphazenium salt and preparation process thereof, and process for producing poly(alkylene oxid November 23, 1999
A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): ##STR1## wherein n stands for an integer of from 1 to 8, Z.sup.n- represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positiv
5952457 Polymerization catalyst for alkylene oxide compound and production process of poly(alkylene oxid September 14, 1999
A catalyst for the polymerization of an alkylene oxide compound is disclosed. This catalyst is composed of a phosphazene compound or a phosphazenium salt which is derived from the phosphazene compound and an active hydrogen compound. A poly(alkylene oxide) can be efficiently produced
5677409 Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner c October 14, 1997
Described herein are propylene waxes and a production process thereof. The waxes are each produced by polymerizing propylene in a reaction vessel while using a solid catalyst in the presence or absence of an organoaluminum compound. A hydrogen partial pressure of a gas phase in the r
5658999 Syndiotactic polypropylene wax, production process thereof, and heating roll fixing-type toner c August 19, 1997
Described herein are propylene waxes and a production process thereof. The waxes are each produced by polymerizing propylene in a reaction vessel while using a solid catalyst in the presence or absence of an organoaluminum compound. A hydrogen partial pressure of a gas phase in the r
5652315 Method for preparing ethylene copolymer July 29, 1997
A method for preparing an ethylene copolymer which comprises the step of copolymerizing ethylene with an aromatic vinyl compound in the presence of a catalyst comprising (A) a specific transition metal compound represented by the formula I ##STR1## and (B) a cocatalyst such as an










 
 
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