Tosoh Corporation

Toyo Soda Manufacturing Co., Ltd.

Yutaka Tamano

Takao Suzuki

Shuichi Okuzono

Katsumi Tokumoto

Shoji Arai

Masaki Ishida

Hiroyuki Kometani

Hiroaki Nakamura

Yukihiro Tsutsumi

Yoshihiro Takahashi

Takahiro Masuda

Hiroyuki Kiso

Hiroyuki Yoshimura

Masazumi Hasegawa

Hideaki Kisaka

To provide a catalyst composition which is a catalyst composition not impairing the physical properties of a polyurethane resin and the storage stability of the starting material blend liquid and which is capable of producing a polyurethane resin excellent in curability and also excellent in moldability by suppressing the initial reactivity, with good productivity. A catalyst composition for production of a polyurethane resin, which comprises (A) triethylenediamine, and (B) a polyisocyanurating catalyst and/or (C) a highly temperature sensitive catalyst, wherein the polyisocyanurating catalyst (B) is one or more compounds selected from the group consisting of an alkali metal salt of a carboxylic acid, a quaternary ammonium salt compound of the following formula (1): wherein each of Rto Ris a Clinear or branched, saturated or unsaturated hydrocarbon group, provided that any two among Rto Rmay form a hetero ring via an oxygen atom or a nitrogen atom, Ris a Calkyl group or an aromatic hydrocarbon group, and X is an organic acid group having an acid dissociation constant (pKa) of at most 4.8, N,N,N'-trimethylaminoethylethanolamine and 2,4,6-tris(dimethylaminomethyl)phenol; the highly temperature sensitive catalyst (C) is one or more compounds selected from the group consisting of a triazole salt of 1,8-diazabicyclo[5.4.0]undecene-7, a benzotriazole salt of 1,8-diazabicyclo[5.4.0]undecene-7, a triazole salt of 1,5-diazabicyclo[4.3.0]nonene-5, a benzotriazole salt of 1,5-diazabicyclo[4.3.0]nonene-5, a triazole salt of 1,8-diazabicyclo[5.3.0]decene-7 and a benzotriazole salt of 1,8-diazabicyclo[5.3.0]decene-7; and the blend ratio of the polyisocyanurating catalyst (B) and/or the highly temperature sensitive catalyst (C) to the triethylenediamine (A) is from 2 wt % to 60 wt %.

Catalyst composition for production of polyurethane resin and method for producing polyurethane resin

In the present invention, a catalyst composition comprising the following amine compounds of (A) and (B) and/or (C) is used and further, a raw material-blended composition further containing a polyol component and water is used. wherein each of Rto Rrepresents a hydrocarbon group having 1 to 12 carbon atoms, Rrepresents an alkyl group or an aromatic hydrocarbon group having 1 to 18 carbon atoms, and X represents an organic acid group having an acid dissociation constant (pKa) of 4.8 or less;

Catalyst composition for production of rigid polyurethane foam and isocyanurate-modified rigid polyurethane foam and raw-material composition containing the same

Provided is a hydroxyalkylated polyalkylene polyamine composition, and a method for preparing the composition at low cost. Further disclosed is a method for producing a polyurethane resin by using the hydroxyalkylated polyalkylene polyamine composition containing at least two hydroxyalkylated polyalkylene polyamines as defined herein.

Hydroxyalkylated polyalkylenepolyamine composition, method for producing same and method for producing polyurethane resin using such hydroxyalkylated polyalkylenepolyamine composition

A method for producing a rigid polyurethane foam, which comprises reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, wherein as the amine catalyst, at least one amine compound having at least one type of substituent selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group in its molecule, or N-(2-dimethylaminoethyl)-N'-methylpiperazine, is used, and as the blowing agent, 1,1,1,3,3-pentafluoropropane (HFC-245fa) and/or 1,1,1,3,3-pentafluorobutane (HFC-365mfc) is used.

Method for producing a rigid polyurethane foam

Disclosed is a novel hydroxyalkylated polyalkylene polyamine composition, and a method for preparing the hydroxyalkylated polyalkylene polyamine composition at low cost. Further disclosed is a method for producing a polyurethane resin by using the hydroxyalkylated polyalkylene polyamine composition containing at least two hydroxyalkylated polyalkylene polyamines represented by the following general formula (1): In the formula (1), Rto Rare independently a Cto Calkyl group or a substituent represented by the following general formula (2): wherein Rand Rare independently a hydrogen atom or a Cto Calkyl group, and p is an integer from 1 to 3; and Rand R, R, R, or Rmay arbitrarily bond together to form a ring; at least one of Rto Ris a substituent represented by the general formula (2) but all of Rto Rcannot be substituents represented by the general formula (2) at the same time; n and m are independently an integer from 1 to 5; and a is an integer from 1 to 6.

Hydroxyalkylated polyalkylenepolyamine composition, method of producing the same and their use in polyurethanes

Flexible polyurethane foams are produced by reacting a polyol and a polyisocyanate in the presence of a catalysts and other auxiliary agents, the process characterized in that a tin-based catalyst is not used. One process includes reacting a polyether polyol containing at least 5% by weight of an oxyethylene group in the chain and having a terminal secondary OH group, a toluene diisocyanate and/or a derivative, and one or more specified imidazole compounds, the process conducted in the absence of a tin-based catalyst.

Process for the production of flexible polyurethane foams

Catalyst containing various amine compounds are described, for the production of polyurethane resins.

Catalyst for production of a polyurethane resin and method for producing a polyurethane resin

A method for producing a rigid polyurethane foam, which comprises reacting a polyol with a polyisocyanate in the presence of an amine catalyst and a blowing agent, wherein as the amine catalyst, at least one amine compound having at least one type of substituent selected from the group consisting of a hydroxyl group, a primary amino group and a secondary amino group in its molecule, or N-(2-dimethylaminoethyl)-N&prime;-methylpiperazine, is used, and as the blowing agent, 1,1,1,3,3-pentafluoropropane (HFC-245fa) and/or 1,1,1,3,3-pentafluorobutane (HFC-365mfc) is used.

Polyurethane resins are produced by reacting a polyol with a polyisocyanate in the presence of an amine catalyst of one of the formulae:

Catalyst composition

Amine catalyst for producing rigid polyurethane foam

Process for producing polyurethane and polyisocyanurate

An amine catalyst-for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1):

Amine catalyst for producing polyurethane and polyisocyanurate

A process for producing a flexible or rigid polyurethane foam is provided in which a polyol and a polyisocyante are reacted in the presence of an amine catalyst, a blowing agent, and a foam stabilizer, the amine catalyst comprising at least one amine compound represented by General Formula (1) below: ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are respectively an alkyl group of 1 to 6 carbons independently; n is an integer of 0 or 1; and A is an alkyl group of 11 to 14 carbons when n is 0, or an alkylene group of 10 to 15 carbons when n is 1. The amine catalyst has low odor and low volatility, and gives high curing rate, and excellent moldability with a formulation of reduced fluorocarbon and increased water as the blowing agent.

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Tokuyama, Japan

Yutaka Tamano