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公开(公告)号：JPH08193111A
公开(公告)日：1996-07-30
申请号：JP494795
申请日：1995-01-17
Applicant: MITSUI TOATSU CHEMICALS
Inventor： SASAOKA KUNIO , YOSHIDA YOSHIO , KOGA NOBUSHI , SAKAI MASAMI , UEDA HIROSHI
Abstract: PURPOSE: To obtain a semirigid polyurethane foam for absorbing lateral clash which has high hardness, excellent touch, and low-temp. properties and is reduced in weight by adding water and a specific lower saturated resin acid in specific amounts as foaming agents to a polyol. CONSTITUTION: The foam is obtained by reacting a polyisocyanate, a polyol, and other ingredients including a foaming agent which comprises, per 100 pts.wt. the polyol, 1.2-2.0 pts.wt. water and 0.5-1.8 pts.wt. compound represented by the formula, R-COOH (wherein R is H or Cn H2n+1 , where n is an integer of 1-7). The polyol is a polyether polyol having a functionality of 2-8 and a hydroxyl value of 24-55mgKOH/g. Although known polyisocyanates may be used, a polymethylene polyphenyl isocyanate or the like is preferred. The compound represented by R-COOH is preferably formic acid. An amine catalyst (e.g. triethylenediamine) is preferably used in an amount of 0.25-1.00 pt.wt. per 100 pts.wt. the polyol.
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公开(公告)号：JPH0859783A
公开(公告)日：1996-03-05
申请号：JP19989294
申请日：1994-08-24
Applicant: MITSUBOSHI BELTING LTD , MITSUI TOATSU CHEMICALS
Inventor： SUZUKI SHIGEO , KONDO KENICHI , SASAOKA KUNIO , SAKAI MASAMI , UEDA HIROSHI
Abstract: PURPOSE: To obtain the semi-rigid polyurethane foam short in a demolding time, excellent in productivity, fogging resistance and resistance against the deterioration of the surfaces of polyvinyl chloride, and useful for automotive interiors, etc., by reacting a specific resin component with an isocyanate component. CONSTITUTION: This semi-rigid polyurethane foam is obtained by reacting a resin component with an isocyanate component such as polymethylenepolyphenylenepolyisocyanate. The resin component comprises a polyol containing 5-80 pts.wt. (based on 100 pts.wt. of the whole amount of polyols) of an amine-based polyetherpolyol using a compound of the formula (R1 -R3 are 1-3C lower alkyl, alkenyl; n is 0-3) as an amine base material and having a mol.wt. of 1500-12000, 1-30 pts.wt. of a polyetheramine having the primary or secondary amino group at the molecular end and having a mol.wt. of 1500-12000, water and other auxiliaries.
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公开(公告)号：JPH0665343A
公开(公告)日：1994-03-08
申请号：JP22021492
申请日：1992-08-19
Applicant: MITSUI TOATSU CHEMICALS
Inventor： SAKAI MASAMI , INOUE HIROSHI , MURATA MASAYUKI
Abstract: PURPOSE:To obtain the subject foam having a low surface hardness by the total water foaming system, by reacting a mixture essentially consisting of a specified polyisocyanate, a specified polyol and water as the lowing agent to form a molding of a specified density. CONSTITUTION:A mixture essentially consisting of a polyisocyanate component comprising polymethylene polyphenyl isocyanate containing at least 60wt.% at least trinuclear components, the so-called polynuclear components, a polyol component comprising a polyol prepared by the addition reaction of an active hydrogen compound having an average functionality of 2-4 with both propylene oxide and ethylene oxide and having a hydroxyl value of 24-55mgKOH/g and an ethylene oxide content of 10-20wt.% and a terminal hydroxyl content of 70-90mol% or a polymer polyol prepared by grafting an ethylenically unsaturated monomer onto this polyol and a blowing agent comprising water and optionally containing a crosslinking agent, a catalyst, a foam stabilizer and other adjuvants is reacted to obtain a molding having a density of 0.4-0.8g/cm .
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公开(公告)号：JPH08245741A
公开(公告)日：1996-09-24
申请号：JP5003995
申请日：1995-03-09
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KOGA NOBUSHI , INOUE HIROSHI , YOKODE SEIJI , SAKAI MASAMI
Abstract: PURPOSE: To obtain an integrally skinned polyurethane foam which is useful in car parts and furniture having no bulge or blister by casting a reaction mixture containing an aromatic polyisocyanate, a high-molecular isocyanate- reactive compound and a specific expanding agent into a mold. CONSTITUTION: A reaction mixture containing (A) an aromatic polyisocyanate, (B) a high-molecular isocyanate-reactive compound, (C) an expanding agent comprising an organic dicarboxylic acid or its compound (for example, an organic dicarboxylate ester or its salt) and, when needed, a crosslinking agent, a catalyst, a foaming agent, a foam stabilizer and other aids or auxiliary agents is cast into a mold to effect the reactive injection molding to give the objective foam having a molded product density of 0.3-0.8g/cm .
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公开(公告)号：JPH08143637A
公开(公告)日：1996-06-04
申请号：JP28970994
申请日：1994-11-24
Applicant: MITSUI TOATSU CHEMICALS
Inventor： SASAOKA KUNIO , YOSHIDA YOSHIO , SAKAI MASAMI , UEDA HIROSHI
Abstract: PURPOSE: To economically obtain a foam, useful as interior material such as instrumental-panel, upper part of a door-trim, arm-rest and head-rest, etc., of automobiles with minimized defective molding by incorporating a specific amount of a specific cross-linking agent. CONSTITUTION: The foam is obtained by mixing (A) a polyisocyanate such as polymethylene-polyphenylisocyanate, (B) a polyol such as polyether-polyol, (C) water (D) a foam stabilizer, catalyst or other additives, and (E) a crosslinking agent obtained from starting compounds expressed by the formula; (n=2, 3) and the OH value ranging from 500 to 1500mgKOH/g where the amount of (E) is 0.3-1.5 pts.wt. per 100 pts.wt. of (B). The compound of the formula is optimally diethylenetriamine.
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Patent Agency Ranking
公开(公告)号：JPH05132536A
公开(公告)日：1993-05-28
申请号：JP29700391
申请日：1991-11-13
Applicant: MITSUI TOATSU CHEMICALS
Inventor： SASAOKA KUNIO , NANPO TOSHIO , SATO TOSHIHARU , SAKAI MASAMI
IPC: B29C39/10 , B29K75/00 , B29K105/04 , B29L31/58 , B32B27/40 , C08G18/00 , C08G18/67 , C08G101/00 , C08J9/02 , C08K5/01 , C08K5/10 , C08L75/00 , C08L75/04
Abstract: PURPOSE:To obtain the subject foam which can give a lightweight integrated three-layer interior decorating material when combined with a thin-wall modified PPO resin as a core material and a flexible polyvinyl chloride as a skin by reacting a polyisocyanate with a polyol, water, etc., in the presence of a specified compound. CONSTITUTION:The objective semirigid polyurethane foam is obtained by reacting a polyisocyanate with a polyol, water and other assistants in the presence of 0.5-2.0 pts.wt., per 100 pts.wt. polyol, at least one compound selected from among those of formula I (wherein R1 is 1-3C alkyl or alkenyl; and R2 is H, 1-3C alkyl or alkenyl) and those of formula II (wherein X is OH, COOH or NH2; R3 is 1-6C alkylene or oxyalkylene; (m) is 0 or 1-3; and (n) is 1-3). This foam has improved adhesion to a modified PPO resin as a core material and can give a lightweight integrated three-layer interior decorating material when combined with a thin-wall modified PPO resin material as a core and a flexible polyvinyl chloride as a skinning material.
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公开(公告)号：JPH01135825A
公开(公告)日：1989-05-29
申请号：JP29326587
申请日：1987-11-20
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMAMURA HIROSHI , SAKAI MASAMI , INOUE HIROSHI , YATSUGI SHIGERU
IPC: C08G18/65
Abstract: PURPOSE:To provide the above molded product free from non-uniform cells, etc., and having good molding state, mold releasing property, abrasion resistance, etc., by a reaction injection molding method, by adding a specific aliphatic compound in a specified rate to a mixed solution containing an active hydrogen- containing compound, a foaming agent, etc. CONSTITUTION:0.05-30wt.% of an aliphatic compound of the formula (R1 is 10-19C alkyl or acyl; R2 and R3 are 2-4C alkylene; m and n are integers satisfying m+n=1-10) (e.g., lauric acid diethanol amide) is first added to a mixed solution comprising a high-mol.wt. active hydrogen-containing compound, low-mol.wt. active hydrogen-containing compound, foaming agent and foaming assistant. The mixed solution and a polyisocyanate are subjected to reaction injection molding to provide the objective molded product having a molding density of . The polyisocyanate is preferably an urethane group- containing polyisocyanate produced by reacting 4,4'-diphenylmethane diisocyanate with tripropylene glycol, etc.
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公开(公告)号：JPH08113625A
公开(公告)日：1996-05-07
申请号：JP17569595
申请日：1995-07-12
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KOGA NOBUSHI , INOUE HIROSHI , SAKAI MASAMI , UEDA HIROSHI
IPC: C08J9/02 , C08G18/00 , C08G18/08 , C08G101/00 , C08J9/14
Abstract: PURPOSE: To obtain an integral-skin polyurethane foam improved in productivity, moldability touch, blistering resistance, puncture resistance by pouring a reaction mixture comprising an aromatic polyisocyanate, a high-molecular-weight isocyanato-reactive compound, a specified blowing agent and other adjuvants into a mold. CONSTITUTION: An aromatic polyisocyanate (A), a high-molecular-weight isocyanato-reactive compound (B) having an OH value of 24-55mgKOH/g, an ethylene oxide content of 10-25wt.% and a terminal OH value rate of 70-95mol%, a blowing agent (C) comprising 10wt.% or below, based on component B, boric acid and/or its ester, or a mixture thereof with an organic carboxylic acid and/or its ester, a catalyst and optionally a crosslinking agent, a foam stabilizer and other adjuvants are mixed with each other, and the obtained mixture is poured into a mold and left standing to obtain a molding of a density of 0.3-0.8g/cm .
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公开(公告)号：JPH0665342A
公开(公告)日：1994-03-08
申请号：JP22021392
申请日：1992-08-19
Applicant: MITSUI TOATSU CHEMICALS
Inventor： SAKAI MASAMI , INOUE HIROSHI , MURATA MASAYUKI
Abstract: PURPOSE:To obtain the subject foam of a low surface hardness by the total water foaming systems, by reacting a mixture essentially consisting of an aromatic polyisocyanate, a specified isocyanate-reactive compound and water at the blowing agent to form a molding of a specified density. CONSTITUTION:A mixture essentially consisting of an aromatic polyisocyanate, a high-molecular-weight isocyanate-reactive compound mixture comprising a polyol (A-1) prepared by the addition reaction of an active hydrogen compound having an average functionality of 2-4 with both propylene oxide and ethylene oxide and having a hydroxyl value of 24-55mgKOH/g, an ethylene oxide content of 10-20wt.% and a terminal primary hydroxyl content of 70-90mol% or a polymer polyol (A-2) prepared by grafting an ethylenically unsaturated monomer onto this polyol and an amino-terminated polyether polyamine (B) having an average functionality of 2-4 and an average molecular weight of 2000-6000 in an A/B weight ratio of 90/10 to 99/1 and a blowing agent comprising water is reacted to obtain a molding having a density of 0.4-0.8g/cm .
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公开(公告)号：JPH05287046A
公开(公告)日：1993-11-02
申请号：JP8367392
申请日：1992-04-06
Applicant: MITSUI TOATSU CHEMICALS , MITSUBOSHI BELTING LTD
Inventor： SAKAI MASAMI , SASAOKA KUNIO , MIYAWAKI TADASHI
IPC: C08G18/48 , C08G101/00 , C08J9/02
Abstract: PURPOSE:To obtain a semirigid polyurethane foam scarcely having defects such as voids in foam, partial surface dents and extensive surface irregularities by using a specified polyol as the polyol component. CONSTITUTION:The title process is one for producing a semirigid polyurethane foam by reacting a resin component comprising a polyol component and assistants such as water, an amine catalyst and a foam stabilizer with an aromatic polyisocyanate (prepolymer). The polyol component contains 70-100wt.%, based on the total polyol component, polyol obtained by reacting a compound containing 2-4 hydroxyl groups with propylene oxide and ethylene oxide, having a hydroxyl value of 20-35mgKOH/g, a content of terminal prim. hydroxyl groups of at least 70wt.%, based on all the hydroxyl groups and a content of ethylene oxide of 10-30wt.%, based on the total amount of both oxides and containing both a random copolymer part comprising both oxides and an ethylene oxide block part.
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