公开(公告)号：JPH06179039A

公开(公告)日：1994-06-28

申请号：JP35426792

申请日：1992-12-14

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KAGITANI MASAHIKO

IPC: B22C1/02 ,  B22C1/22

Abstract: PURPOSE:To provide the resin coated sand for improving the collapsing property of a casting mold obtd. by a shell mold method. CONSTITUTION:This resin coated sand is formed by coating the surfaces of refractory granular aggregate with a binder compsn. This binder compsn. contains the phenolic resin and the decay accelerator which is expressed by general formula B(OR)3 (where R denotes 1 to 4C alkyl group). The phenolic resin consisting of a novolak type phenolic resin, resol type phenolic resin or mixed system consisting of the novolak type phenolic resin and the resol type phenolic resin is usable as the phenolic resin. Other arbitrary components, such as lubricants and silane coupling agents, may be incorporated into the binder compsn. The casting mold by the shell mold method is obtd. if the resin coated sand is packed into a pattern and is cured by heating.

公开(公告)号：JPH06179038A

公开(公告)日：1994-06-28

申请号：JP35426692

申请日：1992-12-14

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KAGITANI MASAHIKO

IPC: B22C1/02 ,  B22C1/22

Abstract: PURPOSE:To provide the binder compsn. for production of a casting mold having an excellent collapsing property. CONSTITUTION:This binder compsn. contains a binder which can be cured by a hardener and the decay accelerator which is expressed by general formula B(OR)3 (where R denotes 1 to 4C alkyl group). The binder which can be cured by a hardener consisting of org. ester and the decay accelerator are preferably incorporated into the binder compsn. in the case of production of the self-curing casting mold. The binder which can be cured by the hardener consisting of a strong acid and a weakly basic acid is preferably incorporated into the binder compsn. in the case of production of the thermally curing casting mold. The binder which can be cured by blowing gaseous or aerosol-like sulfur dioxide and org. ester, etc., is preferably incorporated into the binder compsn. in the case of production of the gas curing casting mold. The objective casting mold is obtd. by kneading the binder compsn. and the respective hardeners with refractory granular aggregate and curing the binder by a desired method.

公开(公告)号：JPH0663687A

公开(公告)日：1994-03-08

申请号：JP24572392

申请日：1992-08-20

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KAGITANI MASAHIKO

IPC: B22C1/02

Abstract: PURPOSE:To provide the green molding sand compsn. for production of castings with which green sand molds having excellent surface stability are obtainable even with a small volume of water. CONSTITUTION:This green molding sand compsn. for production of castings contains surfactant as its essential components. All of anionic surfactants, nonionic surfactants, cation surfactants and amphoteric surfactants are usable as the surfactants. Bentonite is generally used as the clay in the green molding sand compsn. for production of castings. Carbides, such as coal powder, and starch, etc., may be incorporated as the arbitrary components of the green molding sand compsn. for production of castings into the compsn. This green molding sand compsn. for production of castings is formed by adding the clay and the surfactants to the sand. The surfactants are preferably added in the form of an aq. soln. The formation of the green molding sand compsn. for production of castings by adding an aq. additive soln. mixed with the surfactants and the clay, etc., to the sand is possible as well.

公开(公告)号：JPH04371347A

公开(公告)日：1992-12-24

申请号：JP14618391

申请日：1991-06-18

Applicant: KAO CORP

Inventor： KIUCHI KAZUHIKO ,  SAKAI MITSURU ,  FUNADA HITOSHI

IPC: B22C1/22 ,  C08G59/20 ,  C08G59/40 ,  C08L33/04 ,  C08L33/06 ,  C08L63/00 ,  C08L101/02

Abstract: PURPOSE:To obtain the better collapsing property (sand shaking-out property) than the collapsing property of the casting mold obtd. by the conventional process for production by using the above binder compsn. and eventually to drastically decrease the knock-out stages in high-pressure casting and to obtain the binder compsn. extremely useful in practical use. CONSTITUTION:This binder compsn. for the sand core for high-pressure casting is used in the process for production of the sand core to be applied to the undercut part in die casting for casting a light alloy under several 10 to several 100kg/cm pressure by mixing a binder resin and oxidizing agent with refractory aggregate and molding a casting mold by sulfur dioxide and consists essentially of a compd. having >=1 kinds of any among 2 epoxy groups, vinyl groups and vinylidene groups within the molecule.

公开(公告)号：JPH04371340A

公开(公告)日：1992-12-24

申请号：JP14450691

申请日：1991-06-17

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KIUCHI KAZUHIKO ,  NAKAI SHIGEO

IPC: B22C1/02 ,  C07C409/00

Abstract: PURPOSE:To improve a collapsing property and to eliminate the need for a heat treatment in a knock-out stage as well as to decrease the number of stages by using the specific compsn. for the sand core to be applied to an undercut part. CONSTITUTION:This peroxide compsn. is the peroxide compsn. for the sand mold for high-pressure casting used at the time of producing the sand core to be applied to the undercut part by blowing gaseous or aerosol sulfur dioxide into a sand mold molded by adding and kneading an acid curing resin and the peroxide compsn. to and with refractory granular aggregate in die casting for casting a light alloy under several 10 to several 100kg/cm pressure and consists of a ketone peroxide and a dilution stabilizer. This dilution stabilizer contains 30 to 100wt.% at least one kind of the methyl esters expressed by the general formula I or general formula II. The formula I... R1COOCH3, the formula II... R2(COOCH3)20.

公开(公告)号：JPS61103641A

公开(公告)日：1986-05-22

申请号：JP22378184

申请日：1984-10-24

Applicant: Kao Corp

Inventor： KAWAKATSU YASUYUKI ,  SAKAI MITSURU ,  AOKI YOSHIHIRO

IPC: B22C1/14 ,  B22C3/00

CPC classification number: B22C1/14

Abstract: PURPOSE:To obviate the staining of a pattern by incorporating zinc powder having a specific average grain size, liquid oil having prescribed viscosity or below and org. solvent having a prescribed b.p. respectively at specific wt% into a parting agent. CONSTITUTION:The parting agent for a mold pattern is constituted by incorporating 2-50% zinc powder having =1 kinds selected from polyvalent fatty ester, phthalic acid ester, silicone oil, etc. having =1 kinds selected from arom. hydrocarbon of 6-14C, aliphatc. hydrocarbon of 4-12C, hydrocarbon halide of 1-8C, etc. into said agent. The coating property of the parting material is improved by the component constitution and compounding ratio of the parting agent, by which the amt. of the resin to be stuck to the mold pattern is decreased. The staining of the pattern is thus obviated.

Abstract translation: 目的：通过加入具有特定平均粒径的锌粉，以规定粘度或更低的液体油和组织结构来消除图案的污染。 溶剂具有规定的沸点 分别以特定重量％进入脱模剂。 构成：模具用脱模剂通过掺入2-50％平均粒度的平均粒径为0.5μm的锌粉末，选自多价脂肪酸酯，邻苯二甲酸酯，硅油中的1％〜1％的液体油 等等，具有<= 100,000cps粘度和30-97％组织。 > = 1种溶剂，选自芳烃。 碳氢化合物6-14C，脂肪族。 4-12℃的碳氢化合物，1-8℃的卤化烃等。 分离材料的涂层性能通过分离剂的组分构成和配混比提高， 要粘附到模具图案上的树脂减少。 因此，图案的染色被消除。

公开(公告)号：JPS60115344A

公开(公告)日：1985-06-21

申请号：JP22385883

申请日：1983-11-28

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  KANEKAWA HIROMI ,  KAWAKATSU YASUYUKI

IPC: B22C1/22

Abstract: PURPOSE:To obtain a binder which improves remarkably the strength of a casting mold by bringing the resulting product of reaction of furfuryl alcohol and isocyanate compd. into co-condensation with furfuryl alcohol, urea and phenol by formaldehyde. CONSTITUTION:Aliphat. isocyanate, arom. polyisocyanate, etc. are used as an isocyanate compd. and are used at about 0.05-1.00 molar ratio with furfuryl alcohol to form the resulting product of reaction. The resulting product and compd. of >=1 kind selected from furfuryl alcohol, urea and phenol are brought into co-condensation by formaldehyde to form a binder. The binder is used at about 0.4-3.0pts.wt. by 100pts.wt. refractory aggregate.

公开(公告)号：JP2003055430A

公开(公告)日：2003-02-26

申请号：JP2001244295

申请日：2001-08-10

Applicant: Kao Corp ,  花王株式会社

Inventor： ISHIKAWA ATSUSHI ,  SAKAI MITSURU ,  MORII MASAYOSHI ,  FUJIOKA HIDEAKI

IPC: B29C39/02 ,  B29K75/00 ,  B29K105/04 ,  B29K105/24 ,  C08G18/65 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To provide a crosslinking agent which is used for producing a polyurethane foam, is a low-viscosity liquid at room temperature, excellent in handleability, and has high reactivity, and a process which makes it possible to quickly produce a flame-retardant polyurethane foam excellent in mechanical properties such as compressive strength.
SOLUTION: The crosslinking agent for producing a polyurethane foam contains a bisphenol A derivative represented by formula (I) (wherein R
1 is H or methyl; and (m) is the average number of oxyalkylene molecules added and is 1 to 3) and a dialkanolamine compound represented by formula (II) (wherein R
2 is H or methyl; R
3 is a 1-18C linear or branched alkyl or a 2-18C linear or branched alkenyl; and (n) is the average number of oxyalkylene molecules added and is 1 to 3). The process for producing a polyurethane foam comprises reacting a polyol composition containing the crosslinking agent and a polyol component with an isocyanate component in the presence of a foaming agent and a catalyst.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了提供用于制备聚氨酯泡沫的交联剂，在室温下为低粘度液体，操作性优异，反应性高，并且能够快速产生火焰的方法 优异的机械性能如抗压强度的聚氨酯泡沫塑料。 解决方案：用于制备聚氨酯泡沫的交联剂含有由式（I）表示的双酚A衍生物（其中R 1是H或甲基;和（m）是加入的氧化烯分子的平均数，为1至3） 和由式（II）表示的二烷醇胺化合物（其中R 2是H或甲基; R 3是1-18C直链或支链烷基或2-18C直链或支链烯基;和（n）是 平均氧化烯分子数为1〜3）。 制备聚氨酯泡沫的方法包括在发泡剂和催化剂的存在下使包含交联剂的多元醇组合物和多元醇组分与异氰酸酯组分反应。

公开(公告)号：JP2001253925A

公开(公告)日：2001-09-18

申请号：JP2000066774

申请日：2000-03-10

Applicant: KAO CORP

Inventor： ISHIKAWA ATSUSHI ,  SAKAI MITSURU ,  MORII MASAYOSHI

IPC: C08G18/18 ,  C08G101/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for the quick production of a polyurethane foam having excellent dimensional stability even at a low temperature while scarcely generating odor originated from the catalyst. SOLUTION: The objective method for the production of a polyurethane foam comprises the reaction of a polyol component and an isocyanate component in the presence of a foaming agent and a polyurethane production catalyst containing a compound expressed by formula (I) R1R2N-(CH2)n-NR3R4 (R1, R2, R3 and R4 are each independently a 1-4C straight or branched chain alkyl; and (n) is an integer of 8-12) and a dialkylaminoalkyl alcohol expressed by formula (II) R5R6N-A-OH (A is a 4-8C straight or branched chain alkylene; and R5 and R6 are each independently a 1-4C straight or branched chain alkyl).

公开(公告)号：JP2000159852A

公开(公告)日：2000-06-13

申请号：JP33988098

申请日：1998-11-30

Applicant: KAO CORP

Inventor： SAKAI MITSURU ,  ISHIKAWA ATSUSHI ,  MORII MASAYOSHI

IPC: C08J9/04 ,  C08G18/18 ,  C08G18/32

Abstract: PROBLEM TO BE SOLVED: To produce a polyurethane foam excellent in dimensional stability even at low temperatures by reacting a polyol component with an isocyanate component in the presence of a catalyst containing a compound having a tert- amino group and an NCO-reactive OH group and a compound having a prim- amino group and a prim-OH group, a blowing agent, and a foam stabilizer. SOLUTION: Preferably, the compound having a tert-amino group and an NCO-reactive OH group is 6-dimethylamino-1-hexanol, and the compound having a prim-amino group and a prim-OH group is preferably a compound of the formula: A-(CH2)n-NH2 and/or a compound selected from among 3- aminopropanol, 2-hydroxyethylaminopropylamine, 2- hydroxyethylaminoethylamine, and N-methyl-N-(2-hydroxyethyl)-1,3- propanediamine. In the formula, A is NR1R2 or OH; R1 is H or 1-4C alkyl; R2 is CH2CH2OH; and n is 2-6.