专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH11246838A ADHESIVE COMPOSITION 失效
公开(公告)号：JPH11246838A
公开(公告)日：1999-09-14
申请号：JP5091598
申请日：1998-03-03
申请人： MITSUI CHEMICALS INC
发明人： UEDA KYOICHI , DOI KIYOTO , TANAKA KOICHI , KOTOU NOBUHIKO , SHIMODA MANABU
IPC分类号： B27D1/04 , B27N3/00 , C09J161/28
摘要： PROBLEM TO BE SOLVED: To obtain an adhesive composition capable of solving the problem of hardening retardation caused by decrease of formaldehyde in an amino resin, capable of improving productivity and economy, and useful for adhesion of a veneer, a sliced veneer or the like by including a specific amino resin and a specified hardening accelerator. SOLUTION: This adhesive composition comprises (A) an amino resin having a molar ratio of formaldehyde to an amino group regulated so as to be 0.4-0.9, and (B) a hardening accelerator comprising one or more kinds of a persulfuric acid salt, a peroxide and an azo compound, [e.g. ammonium persulfate, hydroperoxide and 2,2'-azobis(2-amidinopropane) hydrochloride], preferably in an proportion of 0.05-20 pts.wt. component B based on 100 pts.wt. component A (expressed in terms of solid).

2. 发明专利

JPH1192207A PRODUCTION OF GYPSUM THIN-FORMED BOARD 失效
公开(公告)号：JPH1192207A
公开(公告)日：1999-04-06
申请号：JP24839897
申请日：1997-09-12
申请人： MITSUI CHEMICALS INC
发明人： NAGAI HIROYOSHI , DOI KIYOTO , ABE KOJI , YOSHINO TADASHI
IPC分类号： C04B11/26 , B28B1/52 , C04B28/14 , C04B103/12 , C04B103/22 , C04B111/20
摘要： PROBLEM TO BE SOLVED: To obtain an inexpensive thin-formed board high in mechanical strength by incorporating α-gypsum hemihydrate as a byproduct from the wet phosphoric acid production process with a fibrous material, water, and, as necessary, an admixture and a setting regulator to prepare a mixed slurry at a specific temperature which, in turn, is subjected to filtration and drying. SOLUTION: This gypsum thin-formed board is obtained through the following process: first, α-gypsum hemihydrate 15-35 wt.% in adhered water content produced as a byproduct in manufacturing wet phosphoric acid by decomposing igneous phosphate rock with sulfuric acid is dried and ground; next, the resulting α-gypsum hemihydrate is incorporated with a fibrous material (e.g. pulp fiber), hot water, and, as necessary, an admixture (e.g. wollastonite powder) and a setting regulator (an alkaline substance such as NaOH or a hardenable alkaline inorganic matter like cement) to prepare a slurry at a temp. of 40-80 deg.C; wherein the setting regulator is intended for the pH adjustment of the resulting slurry, its amount to be added being 0.1-5 pts.wt. based on 100 pts.wt. of the α-gypsum hemihydrate; the resultant slurry is then dehydrated using a vacuum filter, molded and then dried.

3. 发明专利

JPH1112019A GYPSUM BOARD FOR INTERIOR WALL AND ITS PRODUCTION 失效
公开(公告)号：JPH1112019A
公开(公告)日：1999-01-19
申请号：JP16427297
申请日：1997-06-20
申请人： MITSUI CHEMICALS INC
发明人： NAGAI HIROYOSHI , DOI KIYOTO , YOSHINO TADASHI , MAEDA KOICHI
IPC分类号： C04B28/04 , C04B111/40
摘要： PROBLEM TO BE SOLVED: To obtain the subject board with improved surface accuracy and moisture absorbing/releasing characteristics by including gypsum, cement, inorganic powder, a fibrous material and moisture absorbing/releasing material. SOLUTION: This board comprises gypsum, cement, inorganic powder, a fibrous material and moisture absorbing/releasing material. The gypsum may be natural or synthetic one or the like, preferably α-hemihydrate gypsum produced as the by-product by the wet process that produces phosphoric acid from phosphorus ore and sulfuric acid, more preferably α-hemihydrate gypsum dried and incorporated with an inorganic alkali. The cement may be various types of Portland cement, Portland blast-furnace cement, fly ash cement or the like, used preferably at 30 to 0 pts.wt. per 70 to 100 pts.wt. of the gypsum. The inorganic powder is a light aggregate or the like, e.g. fly ashes, sirasu balloons or pearlite, its grain size being 20 to 500 μm. The fibrous material may be natural or synthetic, e.g. fibers from pulp of a vegetable, needle-leaved tree or the like, or glass fibers. The moisture absorbing/releasing material includes inorganic one, e.g. zeolite or attapulgite, or organic one, e.g. poval, CMC or thermosetting resin.

4. 发明专利

JPH10324552A CEMENT ADMIXTURE 失效
公开(公告)号：JPH10324552A
公开(公告)日：1998-12-08
申请号：JP6319998
申请日：1998-03-13
申请人： MITSUI CHEMICALS INC
发明人： HATSUJI HISAKAZU , DOI KIYOTO , MAEHAMA MITSUHIRO , TOMITA YOSHIHIKO
IPC分类号： C04B24/30 , C04B40/00 , C04B103/32 , C08G14/14 , C08L61/20
摘要： PROBLEM TO BE SOLVED: To obtain an admixture which shows an excellent dispersing effect, slump holding effect and resistance against separation of material without causing retardation in hardening by using a polyoxyalkylene monoamine, an aromatic diamine compd., a compd. which can cause HCHO addition condensation with the aromatic diamine compd., and a HCHO addition condensate of a compd. having sulfone groups as the essential components. SOLUTION: The admixture preferably contains as essential components, a polyoxyalkylene monoamine expressed by R1 O-(AO)m (BO)n -R2 -NH2 , an aromatic diamine compd. (driv.) (e.g. 2,4-diaminodiphenylmethane), a compd. which can cause HCHO addition condensation with the aromatic diamine compd. (deriv.) (e.g. melamine, phenyl and urea), and a HCHO addition condensate of a compd. which produces sulfone groups (e.g. sodium sulfite). In the formula, R1 is 1 to 5C alkyl; R2 is 1 to 5C alkylene; AO, BO are 2 to 5C oxyalkylene and represent block and/or random chains; (m), (n) are 0 to 300 satisfying 300>=m+n>=4.

5. 发明专利

JPH10309779A WOODY FIBER PLATE AND ITS MANUFACTURE 失效
公开(公告)号：JPH10309779A
公开(公告)日：1998-11-24
申请号：JP12213997
申请日：1997-05-13
申请人： MITSUI CHEMICALS INC
发明人： TANAKA KOICHI , DOI KIYOTO , UEDA KYOICHI , KOTO NOBUHIKO
IPC分类号： B32B5/02 , B32B21/08 , B32B27/42 , C08L33/00 , C08L61/20
摘要： PROBLEM TO BE SOLVED: To control formaldehyde amount discharged for a long time even under severe conditions with satisfactory water resistance by mixing formaldehyde scavenger, acrylic emulsion having a functional group crosslinked with the amino resin and timber preservative in woody fiber with the amino resin used as a binder. SOLUTION: Bending strength and rigidity of the woody fiber plate obtained to partly polymerize by using catalyst or heating, to form cured material partly crosslinked to become an adhesive layer of high strength from amino resin. Further, as the amino resin used for front and rear layers, melamine resin or urea-melamine resin is used to improve durability. And, formaldehyde scavenger is compound reacted with formaldehyde and having amino group in ammonium salt molecule. Meanwhile, acrylic resin is obtained by a known emulsion polymerizing process. And, as timber preservative, known bacteriostat, mildewproofing agent, or algicide is used.

6. 发明专利

JPH10120457A AQUEOUS COMPOSITION FOR SELF LEVELING 失效
公开(公告)号：JPH10120457A
公开(公告)日：1998-05-12
申请号：JP27950196
申请日：1996-10-22
申请人： MITSUI CHEMICALS INC
发明人： NAGAI HIROYOSHI , DOI KIYOTO , YOSHINO TADASHI , YOSHIDA HIROTAKA
IPC分类号： C04B28/14
摘要： PROBLEM TO BE SOLVED: To obtain an aqueous composition stable without being concerned with the temperature change, capable of maintaining high fluidity for a long time, manifesting a sufficient strength after being hardened and having good operability by using a mixture of an α-hemihydrate gypsum with a cement as a substrate, and blending a fluidizing agent, a retarder and an accelerator with the substrate. SOLUTION: This self leveling material comprises α-hemihydrate gypsum obtained as a byproduct when producing phosphoric acid by using a phosphate rock and sulfuric acid by a wet phosphoric acid production method, a cement, a fluidizing agent, a retarder and an accelerator. The α-hemihydrate gypsum is preferably the one obtained by adding an alkali after being dried. The α- hemihydrate gypsum of 99-50 pts.wt. and the cement of 1-50 pts.wt. are preferably used based on 100 pts.wt. of the total of the α-hemihydrate gypsum and the cement. The fluidizing agent is preferably an oxycarboxylic acid based one and/or polycarboxylic acid-based one. A hydroxycarboxylic acid and/or salts thereof is used as the retarder, and an alkali metal carbonate and/or an alkali metal bicarbonate is used as the accelerator.

7. 发明专利

JPH11255856A LATENT CURING AGENT 失效
公开(公告)号：JPH11255856A
公开(公告)日：1999-09-21
申请号：JP5506898
申请日：1998-03-06
申请人： MITSUI CHEMICALS INC
发明人： KOTOU NOBUHIKO , DOI KIYOTO , UEDA KYOICHI , TANAKA KOICHI , SHIMODA MANABU
IPC分类号： C08G12/02
摘要： PROBLEM TO BE SOLVED: To resolve delay in cure caused by the decrease of formaldehyde and to improve the economic efficiency by the acceleration of cure by employing a specific amount of persulfates, peroxides or azo compounds as a curing accelerator of an amino resin with its molar ratio of formaldehyde to amino groups adjusted in a specific range. SOLUTION: The molar ratio of formaldehyde to amino groups in an amino resin comprising an oligomer and/or a polymer which is a reaction product of one or more of urea, thiourea and melamine and the like with formaldehyde is adjusted between 0.4 and 1.8. A latent curing accelerator comprising one or more of persulfates of ammonium, potassium, sodium, barium and the like, peroxides such as ketone peroxides and the like and azo compounds such as 2,2'-azobis(isobutyronitrile) is added to the amino resin for an adhesive composition in an amount of 0.05-20.0 pts.wt. relative to 100 pts.wt. of the amino resin to effect cure at a specified temperature. And an ammonium salt can be jointly used as a curing agent.

8. 发明专利

JPH11130503A CEMENT ADMIXTURE 失效
公开(公告)号：JPH11130503A
公开(公告)日：1999-05-18
申请号：JP30034397
申请日：1997-10-31
申请人： MITSUI CHEMICALS INC
发明人： HATSUJI HISAKAZU , DOI KIYOTO , MAEHAMA MITSUHIRO , TOMITA YOSHIHIKO
IPC分类号： C04B24/22 , C04B24/30 , C04B40/00 , C04B103/32 , C08G65/08
摘要： PROBLEM TO BE SOLVED: To obtain a cement admixture hardly causing retardation of hardening, manifesting excellent dispersing activities and slump-maintaining activities, and having extreme separating resistance of a material by subjecting a polyoxyalkylene (derivative) to a cocondensation with a monomer the formaldehyde addition-condensation of which can be carried out with the polyoxyalkylene, a compound forming sulfone group and the formaldehyde. SOLUTION: This cement admixture is obtained by subjecting a polyoxyalkylene (derivative) of formula I R1 is a 1-5C alkyl; Z1 is a 1-5C alkoxy, NH2 or NH-Z2 [Z2 is formula II (R2 to R5 are each H, a 1-5C alkyl, a 1-5C alkoxy or an aromatic compound)]; AO and BO are each a block or random 2-5C oxyalkylene; (m) and (n) are each 0-300 [300>=(m)+(n)>=2] to a cocondensation with a monomer a formaldehyde addition-condensation of which can be carried out with the polyoxyalkylene, a compound forming sulfone group and the formaldehyde. Melamine, phenol, urea, aminobenzenesulfonic acid, etc., are cited as the monomer the formaldehyde addition-condensation of which can be carried out. A sulfonating agent is used as the compound forming sulfone group.

9. 发明专利

JPH118048A ELECTRICAL INSULATING MATERIAL FOR SHEATH HEATER 失效
公开(公告)号：JPH118048A
公开(公告)日：1999-01-12
申请号：JP15847697
申请日：1997-06-16
申请人： MITSUI CHEMICALS INC
发明人： TAKAHASHI YUKIO , DOI KIYOTO , HATSUDA NOBORU
IPC分类号： H05B3/48
摘要： PROBLEM TO BE SOLVED: To provide a sheath heater in which drop in insulating resistance caused by moisture absorption is prevented by burying a heater wire in a metal pipe and filling an electrical insulating material of aluminum tertiary phosphate between them. SOLUTION: For a metal pipe, iron, stainless steel, aluminum, titanium or copper is used. Various sizes of pipes are used according to applications. A coil-shaped heater wire to which a terminal is connected is inserted in the center of the metal pipe, an electrical insulating material is filled between the metal pipe and the coil-shaped heater wire, compression for diameter reduction and heat treatment are applied, then the end of the metal pipe is sealed before use. As the electrical insulating material filled between the metal pipe and the coil-shaped heater wire, aluminum tertiary phosphate is used. Commercially available aluminum tertiary phosphate can be used, but by using aluminum tertiary phosphate prepared by reacting phosphoric acid with a hydroxide or oxide of aluminum in the existence of an organic solvent, electrical insulating effect is furthermore enhanced.

10. 发明专利

JPH10182773A DISPERSION STABILIZER FOR CARBON POWDER SLURRY 失效
公开(公告)号：JPH10182773A
公开(公告)日：1998-07-07
申请号：JP34190096
申请日：1996-12-20
申请人： MITSUI CHEMICALS INC
发明人： MAEHAMA MITSUHIRO , DOI KIYOTO , HATSUJI HISAKAZU , TOMITA YOSHIHIKO
IPC分类号： C10L1/32 , C08G12/02 , C10L10/18
摘要： PROBLEM TO BE SOLVED: To obtain the subject dispersion stabilizer that can improve the fluidity and dispersion stability in high concentration of coal or oil coke by copolymerizing a compound such as a specific polyoxyalkylenemonoamine with formaldehyde. SOLUTION: This dispersion stabilizer is a formaldehyde copolycondensate between (A) a polyoxyalkylenemonoamine of formula I (R1 and R2 are each a 1-5C alkyl; AO, BO are each 2-5C oxyalkylene; m, n are each an integer of 0-100 where 100>=m+n>=4) and (B) a monomer copolymerizable with the component A [preferably melamine or its derivative of formula II (X1 -X3 are H or CH2 OH)], (C) a compound forming sulfonic group (for example, a suflonating agent such as sodium sulfite) with a formaldehyde. The molar ratios of the component A: the component B: the component C: formaldehyde is preferably (0.005-0.5):1:(0.1-4):(1-6).

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式