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

JP2003138120A AROMATIC POLYCARBONATE RESIN COMPOSITION 审中-公开
公开(公告)号：JP2003138120A
公开(公告)日：2003-05-14
申请号：JP2001342699
申请日：2001-11-08
申请人： MITSUBISHI CHEM CORP
发明人： MIYAMOTO MASAAKI , YAMAMOTO MASANORI , TSURUHARA KENJI
IPC分类号： C08L69/00
摘要： PROBLEM TO BE SOLVED: To provide an aromatic polycarbonate resin composition excellent in an antistatic property and hydrolysis resistance and having excellent heat stability in molten state. SOLUTION: This aromatic polycarbonate resin composition comprises an aromatic polycarbonate resin and an antistatic agent and is obtained by containing 0.001-5.0 pts.wt. antistatic agent per 100 pts.wt. aromatic polycarbonate resin and, in addition, containing

2. 发明专利

JP2001072759A PRODUCTION OF AROMATIC POLYCARBONATE 失效
公开(公告)号：JP2001072759A
公开(公告)日：2001-03-21
申请号：JP24873999
申请日：1999-09-02
申请人： MITSUBISHI CHEM CORP
发明人： MIYAMOTO MASAAKI , YAMAMOTO MASANORI
IPC分类号： C08G64/30
摘要： PROBLEM TO BE SOLVED: To obtain a transparent poloration-free high-quality polycarbonate at a high polymerization rate without causing violent foaming by transesterifying an aromatic diol compound with a carbonic diester in the presence of an antifoam. SOLUTION: The antifoam used is desirably (A) a compound having an 8C or higher linear hydrocarbon structure, (B) a polyalkylene oxide compound, or (C) a polysiloxane compound. Compound A is desirably a higher alcohol, its derivative, a higher fatty acid, its derivative, or the like. Compound B is a compound having a structure represented by the formula: -(O-R3-O)n-, wherein R3 is a 2-6C alkylene; and n is an integer of 2 or greater in the molecule. Compound C is a compound having a structure represented by the formula, wherein R4 and R5 are each a 1-10C alkyl; and n is 6-500 in the molecule. It is desirable that the antifoam has a number-average molecular weight of 200-30,000 and is used in an amount of 0.01-5,000 ppm based on the weight of the aromatic diol compound.

3. 发明专利

JP2000309702A POLYAMIDE RESIN COMPOSITION AND PACKAGING FILM MADE THEREFROM 失效
公开(公告)号：JP2000309702A
公开(公告)日：2000-11-07
申请号：JP11996699
申请日：1999-04-27
申请人： MITSUBISHI CHEM CORP
发明人： MIYAMOTO MASAAKI , YAMAMOTO MASANORI , NISHIDA YUICHI
IPC分类号： C08J5/18 , C08G69/04 , C08G69/28 , C08K3/36 , C08K5/17 , C08K5/20 , C08K9/06 , C08L77/00
摘要： PROBLEM TO BE SOLVED: To provide a polyamide resin composition excellent in blocking resistance and transparency, and a packaging film made therefrom. SOLUTION: The resin composition is obtained by melting and kneading the following components (A) and (B), (A) 1-40 pts.wt. silica-containing polyamide resin which consists of 95.0-99.4 wt.% polyamide resin and 5.0-0.6 wt.% silica, wherein the silica has a specific surface (S) of 50-1,000 m2/g and has a surface treated with a silane coupling agent in such a manner that the value obtained by dividing the amount (M) of treatment (moles/g of silica) by the specific surface (S) (m2/g), (M/S=N), is 0.1×10-6 to 30×10-6 (moles/-m2 of silica); and (B) 99-60 pts.wt. polyamide resin substantially free from silica.

4. 发明专利

JP2000290363A PREPARATION OF POLYCARBONATE 失效
公开(公告)号：JP2000290363A
公开(公告)日：2000-10-17
申请号：JP10102199
申请日：1999-04-08
申请人： MITSUBISHI CHEM CORP
发明人： UEHARA TATSUO , MIYAMOTO MASAAKI , YAMAMOTO MASANORI , NAGAI HIROAKI
IPC分类号： C08G64/30 , G02B1/04
摘要： PROBLEM TO BE SOLVED: To provide a process for preparing a polycarbonate resin of a high quality by a melting process. SOLUTION: In a process for preparing a polycarbonate, which comprises polycondensing a diaryl carbonate and a diphenyl in the melting state, stirring is effected in a polymerizer with a linear velocity of the following formula maintaining, as the linear velocity (u) of the melt at the wall face in contact with a heating medium introduced to heat the liquid phase: log u>=-0.15*logμa+1.24 u: linear velocity (cm/sec) of a melt, μa: melt viscosity (poise) of a melt.

5. 发明专利

JPH101608A POLYAMIDE MOLDING HAVING GAS BARRIER PROPERTY AND ITS PRODUCTION 失效
公开(公告)号：JPH101608A
公开(公告)日：1998-01-06
申请号：JP15692596
申请日：1996-06-18
申请人： MITSUBISHI CHEM CORP
发明人： KISHIMOTO SHINTARO , YAMAMOTO MASANORI
IPC分类号： C08J5/00 , C01B33/42 , C08K3/34 , C08K7/00 , C08K9/04 , C08L77/00 , C08L77/06
摘要： PROBLEM TO BE SOLVED: To obtain the subject molding excellent in gas barrier property, transparency and mechanical physical properties, etc., and useful for food packaging, etc., by dispersing a layered silicate into various polyamide resins in fine cleaving state by using a specific fine disperse technique. SOLUTION: A polyamide resin is mixed with an intercalation compound having 1-80μm average particle diameter of primary particles and not having >=300μm particle diameter in an amount of the compound of 0.1-10wt.% as a ash content based on the polyamide resin among intercalation compounds containing a layered silicate having >=80 average aspect ratio and >=30mm/100g cation exchange volume (preferably swelling synthetic fluoromica) as a host and containing a quaternary organic onium ion having at least one >=8C hydrocarbon chain as a guest by mechanical shearing under melting of the polyamide resin and the mixture is molded to provide the objective molding having >=50Å interlayer distance of layered silicate after dispersing. Furthermore, the polyamide resin contains preferably 5-100% component comprising a diamine and a dicarboxylic acid.

6. 发明专利

JPH09143351A FLAME-RETARDANT POLYESTER RESIN COMPOSITION 失效
公开(公告)号：JPH09143351A
公开(公告)日：1997-06-03
申请号：JP30252495
申请日：1995-11-21
申请人： MITSUBISHI CHEM CORP , MITSUBISHI ENG PLAST KK
发明人： YAMAMOTO MASANORI , KISHIMOTO SHINTARO , MURAMATSU SHIGERU , TAKENAKA KUNIHIRO
IPC分类号： C08K3/00 , C08K5/3492 , C08K5/36 , C08K5/372 , C08K5/523 , C08K7/02 , C08L67/00 , C08L67/02
摘要： PROBLEM TO BE SOLVED: To obtain a flame-retardant polyester resin compsn. having good physical properties without using a halogen flame retardant by compounding a polyester resin with a specific phosphoric ester compd., melamine cyanurate, a reinforcing filler, and a thioether compd. SOLUTION: This flame-retardant polyester resin compsn. is prepd. by compounding 100 pts.wt. polyester resin with 0.1-15 pts.wt. phosphoric ester compd. represented by formula I (where R to R are each H or a 1-6C alkyl; (n) is 0-10; and R is a group represented by formula II), 0.1-15 pts.wt. melamine cyannurate, 0-10 pts.wt. reinforcing filler, and 0.05-2 pts.wt. thioether compd. A polyester resin derived from terephthalic acid and butanediol is esp. pref. A pref. phosphoric ester is one wherein R to R are each methyl and (n) is 1. A pref. thioether compd. is represented by formula III. The compsn. is flame- retardant, in spite of contg. no halogen compd., and is excellent in mechanical properties and processibility.

7. 发明专利

JP2002249575A AROMATIC POLYCARBONATE AND METHOD FOR PRODUCING THE SAME 审中-公开
公开(公告)号：JP2002249575A
公开(公告)日：2002-09-06
申请号：JP2001388999
申请日：2001-12-21
申请人： MITSUBISHI CHEM CORP
发明人： MIYAMOTO MASAAKI , TAYAMA TAKAO , YAMAMOTO MASANORI , HYODO NARUTOSHI , KINOSHITA HIDEKI
IPC分类号： C08G64/04 , C08G64/30
摘要： PROBLEM TO BE SOLVED: To provide a transesterified aromatic polycarbonate which is rarely contaminated with transparent foreign matters and is excellent in transparency and molding appearance. SOLUTION: The aromatic polycarbonate comprises being produced by the melt polymerization of an aromatic dihydroxy compound and a carbonate diester compound in the presence of an alkali metal compound and/or an alkaline earth metal compound having a metal content of 0.1 μmol or more and 0.9 μmol or less relative to 1 mol of the aromatic dihydroxy compound, wherein the number of transparent foreign matters in the aromatic polycarbonate having a size of 10 μm or larger (N: number/g) and a viscosity-average molecular weight (Mv) satisfy the equation represented by the following (a) or (b): For Mv ×Mv-9.087) (a); and for Mv>21,000, N ×Mv+2.179) (b).

8. 发明专利

JP2001342343A POLYAMIDE RESIN COMPOSITION AND PACKAGING FILM COMPOSED THEREOF 失效
公开(公告)号：JP2001342343A
公开(公告)日：2001-12-14
申请号：JP2000163894
申请日：2000-06-01
申请人： MITSUBISHI CHEM CORP
发明人： MIYAMOTO MASAAKI , YAMAMOTO MASANORI
IPC分类号： B65D65/02 , C08J5/18 , C08K3/36 , C08K9/06 , C08L77/02
摘要： PROBLEM TO BE SOLVED: To provide a polyamide resin composition which has excellent blocking resistance, transparency and melt stability and can stably provide films having good surface appearance, and to provide a packaging film composed thereof. SOLUTION: The polyamide resin composition comprises silica, and the polyamide resin having an equivalent amount (X) (μeq/g resin) of the terminal amino group (-NH2), an equivalent amount (Y) (μeq/g resin) of the terminal acylamino group [-NHCO-R1 (wherein R1 is a 1-24C hydrocarbon group)], and an equivalent amount (Z) (μeq/g resin) of the terminal carboxyl group (-COOH) which meet the relation ships represented by formula (I): 0.2

9. 发明专利

JPH07292101A METHOD FOR PRODUCING POLYAMIDE LOW CONDENSATION PRODUCT 失效
公开(公告)号：JPH07292101A
公开(公告)日：1995-11-07
申请号：JP8442894
申请日：1994-04-22
申请人： MITSUBISHI CHEM CORP
发明人： YAMAMOTO MASANORI , SAITO MAKOTO
IPC分类号： C08G69/28
摘要： PURPOSE:To obtain a low condensation product giving a polyamide excellent in mechanical property, heat resistance, solvent resistance, dimensional stability, etc., by reacting a specific diamine, a specific dicarboxylic acid ester and water at a specified ratio under specific conditions. CONSTITUTION:(A) 5-50mol.% of a diamine of formula: H2H-R -NH2 (R is >=4C alkyl, cycloalkyl or aryl which may have a substituent), (B) 5-50mol.% of a dicarboxylic acis ester of formula I (R , R are SAC alkyl; R is >=2C alkyl, cycloalkyl or aryl which may have a substituent), and (C) 10-90mol.% of water are charged, and subsequently subjected to a reaction at 70-200 deg.C under a low pressure. Also after the finish of the reaction, most of the charged water is left in the reaction system to obtain the polyamide low condensation product. The obtained low condensation product has a number-average mol.wt. Mn satisfying an equation II ([B] is the mol.% of the component B when charged; [H2O] is the mol.% of the water when charged; 100

10. 发明专利

JPH07188520A POLYESTER RESIN COMPOSITION 失效
公开(公告)号：JPH07188520A
公开(公告)日：1995-07-25
申请号：JP28217494
申请日：1994-11-16
申请人： MITSUBISHI CHEM CORP
发明人： YAMAMOTO MASANORI
IPC分类号： C08K5/06 , C08K3/32 , C08K5/053 , C08K5/15 , C08K5/151 , C08K5/1515 , C08K5/49 , C08K5/51 , C08L67/00 , C08L67/02
摘要： PURPOSE:To obtain a polyester resin composition free from any halogen-based flame retardant, generating no toxic gas in its molding, causing no mold corrosion in its molding, also generating no irritant gas, etc., when burnt, thus useful for automotive parts, etc., by incorporating a polyester resin with a phosphate- based flame retardant and a compound of specific structure. CONSTITUTION:This composition can be obtained by incorporating (A) 100 pts.wt. of a polyester resin with (B) 5-40 pts.wt. of a phosphate-based flame retardant (pref. polyphosphoramide) and (C) 0.1 l 2 pts.wt. of (1) a compound having in the molecule at least one structure of formula I (R and R are each H, phosphoryl, a 1-20C alkyl, an aryl, an alkylcarbonyl or an arylcarbonyl, or may be combined together into a ring) with the total concentration of OR and OR in the compound at >=1.0X10 eq./g and/or (2) a compound having epoxy group structure of formula II with the concentration of said group at >=0.5X10 eq./g.

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