| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Polyacetal resin composition and method of producing the same | JP2013019487 | 2013-02-04 | JP2014148637A | 2014-08-21 | SHIMODA AKIHIDE; NAKADA NORIYOSHI |
| PROBLEM TO BE SOLVED: To provide a polyacetal resin composition capable of meeting higher and more various mechanical properties required with an expansion of a utilization field of a polyacetal resin.SOLUTION: The polyacetal resin composition contains (A) a polyacetal resin of 30 wt.% to 95 wt.%, (B) a silane coupling-treated glass-based inorganic filler of 5 wt.% to 50 wt.%, (C) a trifunctional isocyanate compound of 0.1 wt.% to 10 wt.%, and (D) a nitrogen compound having a formaldehyde reactivity of 0.01 wt.% to 0.5 wt.%. The polyacetal resin composition has a tensile strength of 120 MPa or more when the (B) component is a grass fiber and the like, and has a tensile strength of 60 MPa or more when the (B) component is a glass beads and the like. The resin composition is obtained by mixing the (A) component which is predried so that its water content becomes 1,000 ppm or less with other components. | ||||||
| 162 | Method for manufacturing polyacetal copolymer | JP2012258876 | 2012-11-27 | JP2014105278A | 2014-06-09 | MASUDA EIJI; KADOMA TOMOHIRO; HORIGUCHI TADAHIRO |
| PROBLEM TO BE SOLVED: To realize, on an occasion for manufacturing a polyacetal copolymer, a high polymerization yield and a high quality by deactivating a catalyst easily and efficiently based on a simple process despite the orchestration of a facility and an operation technique requiring no washing processes.SOLUTION: The method of the present invention is used for manufacturing a polyacetal copolymer including, as a main monomer (a), trioxane, and, as a comonomer (b), a cyclic ether and/or cyclic formal possessing at least one carbon-carbon bond. In this method, copolymerization is performed by using a specified heteropoly acid as a polymerization catalyst (c), and the polymerization catalyst (c) is deactivated by adding a specified salt (d) to the obtained reaction product and then melt-mixing the resulting mixture. It is desirable for the heteropoly acid to be selected from among phosphomolybdic acid, phosphotungstic acid, etc. and for the salt (d) to be selected from among sodium carbonate, sodium bicarbonate, sodium formate, etc. | ||||||
| 163 | Molding the polyoxymethylene composition having an improved processing stability and low emission trends | JP2009111098 | 2009-04-30 | JP5468295B2 | 2014-04-09 | ディシュ，シュテファン; エッカルト，ペーター; ミュック，カルル−フリードリッヒ; ロイシェル，ゲルハルト; ライスマン，ロートアル |
| 164 | Preparation of polyoxymethylene | JP2008521943 | 2006-07-13 | JP2009501821A | 2009-01-22 | アスマン イェンス; ツェルナー クヌート; シュヴィッタイ クラウディウス; ブリンツラー マルコ |
| Process for preparing polyoxymethylene copolymers (POMs) by a) polymerizing a reaction mixture comprising suitable main monomers and comonomers and also a polymerization initiator and, if appropriate, a regulator, b) adding a deactivator and c) removing the residual monomers, wherein the amount of compounds whose melting point at 1013 hPa is below 60° C. present in the reaction mixture at any point in time during the process is not more than 0.1% by weight, with the POM, the monomers, comonomers, polymerization initiators, deactivators and regulators not being included in the calculation. | ||||||
| 165 | New polyacetal (co)polymer | JP2001227655 | 2001-07-27 | JP2003040956A | 2003-02-13 | TAJIMA YOSHIHISA; NAKAO HIROAKI; KAWAGUCHI KUNIAKI |
| PROBLEM TO BE SOLVED: To provide a polymer having a high affinity to water, a liquid state in spite of polymer and further heat resistance, and being suitably applicable to heat medium and lubricant uses. SOLUTION: A polyacetal (co)polymer of a liquid state at room temperature obtained by (co)polymerizing (A) 75-100 mol% 1,3-dioxolan with (B) 25-0 mol% trioxane and having a total amount of terminal groups of 15-300 mmol/kg and an amount of terminal hemiformal group of ≤80 mmol/kg, is provided. COPYRIGHT: (C)2003,JPO | ||||||
| 166 | High rigidity oxymethylene polymer resin molded article | JP52985798 | 1997-12-25 | JP3215442B2 | 2001-10-09 | 宏 横山; 肇 永原 |
| 167 | Block copolymer having polymer segment derived from oxazoline | JP22102699 | 1999-08-04 | JP2001048978A | 2001-02-20 | KATAOKA KAZUNORI; NAGASAKI YUKIO; AKIYAMA YOSHITSUGU |
| PROBLEM TO BE SOLVED: To obtain the subject polymer which can form a coating film, etc., stably capable of encapsulating acidic medicaments or substances such as DNA in addition to coating characteristics or the like by introducing a polymer segment derived from oxazoline and a PEO segment. SOLUTION: This block copolymer expressed by formula I [wherein AI is hydroxyl group or an organic residue derived from an anionic polymerization initiator, preferably a group of formula II (wherein (p) is 1 to 10; and R1 and R2 are each a 1-10C alkoxy or the like) or the like; R is H or acyl; NP is a residue derived from a nucleophilic agent and preferably OH or the like; (m) is 2 to 20,000; and (n) is 1 to 20,000] is obtained. The block copolymer of formula I can be obtained e.g. by reacting a polyethylene oxide derivative of formula III(wherein R6 is a 1-6C alkyl or the like) with an oxazoline derivative of formula IV(wherein Rb is H, a 1-20C alkyl or the like) and reacting the resultant polymer with a nucleophilic agent and, if necessary, eliminating acyl group and a protective group in the group AI if the protective group exists. COPYRIGHT: (C)2001,JPO | ||||||
| 168 | Method of manufacturing a polyacetal copolymer | JP25604295 | 1995-10-03 | JP3115515B2 | 2000-12-11 | 薫 山本; 裕之 金井 |
| 169 | Polyacetal copolymer and its production | JP6870399 | 1999-03-15 | JP2000264940A | 2000-09-26 | TAJIMA YOSHIHISA; OKAWA HIDETOSHI |
| PROBLEM TO BE SOLVED: To obtain a polyacetal copolymer having excellent impact resistance, rigidity, creep resistance, or the like, as inherent properties of a polymer, and also enabling high fluidity and excellent moldability in molding by improving heat stability. SOLUTION: This polyacetal copolymer is produced by copolymerizing (a) 100 pts.wt. of trioxane, (b) 0.05-20 pts.wt. of a cyclic ether compound copolymerizable with the trioxane and (c) 0.001-10 pts.wt. of a monofunctional glycidyl compound. In the process, (c) the monofunctional glycidyl compound contains ≤0.3 wt.% of chlorine. COPYRIGHT: (C)2000,JPO | ||||||
| 170 | Preparation of boron trifluoride oxymethylene polymers used mixed with an inert gas | JP18211587 | 1987-07-21 | JP2663444B2 | 1997-10-15 | KURIFUOODO AARU BORUTO; RICHAADO KEI GURIIN |
| 171 | Production of polyacetal copolymer | JP25604295 | 1995-10-03 | JPH09100330A | 1997-04-15 | YAMAMOTO KAORU; KANAI HIROYUKI |
| PROBLEM TO BE SOLVED: To provide a process for producing a polyacetal copolymer markedly reduced in the content of unstable terminals and being very thermally stable in high polymerization yields, whereby the deactivation of the catalyst after the polymerization can be easily accomplished without fail by contact with a basic gas, and the process is simple because the washing step can be dispensed with. SOLUTION: In producing a polyacetal copolymer by copolymerizing trioxane being a main monomer with a cyclic ether or a cyclic formal, as a comonomer, having at least one C-C bond, the copolymerization is carried out by using an isopoly-acid or its acidic salt, the catalyst is then deactivated by contact with a basic gas, and the crude polymer, as such, without being washed is melted by heating. | ||||||
| 172 | Polymer as a constituent unit of the formaldehyde - method of manufacturing | JP19875085 | 1985-09-09 | JPH0730148B2 | 1995-04-05 | 祥平 井上; 健二 土方; 幸彦 影山 |
| 173 | JPH06505281A - | JP50489092 | 1992-02-18 | JPH06505281A | 1994-06-16 | |
| 174 | JPH0439498B2 - | JP14239485 | 1985-06-28 | JPH0439498B2 | 1992-06-29 | |
| 175 | Acetal terpolymer and its production | JP12397690 | 1990-05-14 | JPH0347818A | 1991-02-28 | NAN ROO YAN; ANDORIYUU BII OOAABATSUKU; ROOZU EI PESE; JIERII EI BUROOSAADO; JIEEMUSU ERU POORU |
| PURPOSE: To obtain an acetal terpolymer useful for a wide range of industrial uses such as a car part or a household article and increased in functionality by providing hydroxy and an ester to a side chain and specifying a molar ratio of three kinds of specific repeating structural units. CONSTITUTION: A mixture of an α,α-isomer and an α,β-isomer of glycerol formal represented by formulae I, II [wherein X is OH or a group represented by formula III (wherein R 1 is methyl or phenyl and g is an integer of 0-8 or a group represented by formula IV] or a mixture of ester derivatives of these isomers and trioxane are cationically copolymerized under an anhydrous conditions, for example, by using a coordination complex of boron trifluoride and an org. compd. as a catalyst to obtain an acetal terpolymer represented by formula V [wherein X is hydroxyl or an ester, m, n and p are numbers so that m+n+p becomes an integer of 5-20,000 and a mol ratio of the sum total repeating structural units of n, p and the repeating structural unit of m (repeating structural unit obtained from the mixture: oxymethylene repeating structural unit obtained from trioxane) is about 1:5,000-1:1]. COPYRIGHT: (C)1991,JPO | ||||||
| 176 | Grafting of functional compound to functional oxymethylene polymer skeleton using diisocyanate coupling agent and graft polymer | JP12397990 | 1990-05-14 | JPH0321624A | 1991-01-30 | ANDORIYUU BII OOAABATSUKU; JIERII EI BUROOSAADO; NAN ROO YAN; JIEEMUSU ERU POORU |
| PURPOSE: To provide the subject polymer obtained by reacting a functional compd. with a polyoxymethylene backbone having a pendant hydroxyl functional group and blended with other polymer to improve mechanical characteristics and suitable for a compatibilizing agent. CONSTITUTION: A polyoxymethylene backbone (A) having a pendant hydroxyl functional group represented by formula (R is 1-6C alkyl and m and n are m+n=5-20,000 and m:n=1:1-1,000:1), a monofunctional or difunctional compd. having a functional group being hydroxyl, amine or a carboxylic acid residue (e.g.; polyethylene glycol) and a diisocyanate coupling agent (e.g.; 1,4- benzenediisocyanate) (C) are mixed to be reacted, for example, at 100-200°C to obtain the objective polymer. COPYRIGHT: (C)1991,JPO | ||||||
| 177 | Main chain epoxide functional group-containing acetal copolymer | JP9277789 | 1989-04-12 | JPH0215075A | 1990-01-18 | NAN ROO YANGU; ANDORIYUU AUAABATSUKU; JIEIMUZU ERU POORU; YON CHIYAN TSUEN; SHIYAIAN ESU WANGU |
| NEW MATERIAL: A main chain epoxide functional group-containing acetal copolymer represented by formula (R: amino). USE: A useful compd. showing stability and having a highly reactive functional groups useful for modification and the bonding of an additive and capable of reacting a compatibilizer, a stabilizer, an amine or a crosslinking agent and useful for many important uses. PROCESS: Trioxane and 5,6-epoxy-1,3-dioxepane are copolymerized to obtain the compd. represented by the formula. As a separate method, trioxane is copolymerized with 1,3-dioxep-5-ene to form an acetal copolymer containing a double bond in its main chain and an epoxidizing agent is reacted with this copolymer to epoxidize a main chain double bond to obtain the compd. represented by the formula. COPYRIGHT: (C)1990,JPO | ||||||
| 178 | Production of oxymethylene polymer prepared by using boron trifluoride along with inert gas mixed state | JP18211587 | 1987-07-21 | JPS6341530A | 1988-02-22 | KURIFUOODO AARU BORUTO; RICHIYAADO KEI GURIIN |
| 179 | JPS6213973B2 - | JP13586879 | 1979-10-23 | JPS6213973B2 | 1987-03-30 | SUGIO AKITOSHI; KO KAZUYOSHI; AMAMYA AKIRA; FURUSAWA TOMONOBU; TAKEDA MUTSUHIKO; TANAKA KATSUMASA; UMEMURA TOSHIKAZU; ONO YOSHIHIRO |
| 180 | Impact resistant oxymethylene polymer forming material and product | JP14239485 | 1985-06-28 | JPS6119652A | 1986-01-28 | ROBAATO ESU DORUZARU; BENJIYAMIN ESU EERITSUKU; EICHI RESURII RA NIIBU ZA SAAD |
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