-
公开(公告)号：JPH1143600A
公开(公告)日：1999-02-16
申请号：JP20419497
申请日：1997-07-30
Applicant: UNITIKA LTD
Inventor： WAKAMURA KAZUYUKI , OSAWA TADASHI , YAMAZAKI MASAAKI
IPC: C08K3/00 , B28B7/26 , C08K3/20 , C08K3/34 , C08K7/14 , C08K13/04 , C08L77/00 , E03F5/06 , E21D11/08 , E21D11/38
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition, excellent in mechanical strength and suitably usable as a molded product such as a building material part by compounding a fly ash having a specified specific surface area with a polyamide resin in a specific proportion. SOLUTION: This composition is obtained by compounding (A) 30-99 pts.wt. polyamide resin (preferably nylon 6, nylon 46, nylon 66, etc.), with (B) 70-1 pt.wt. fly ash having 1,000-8,000 cm /g specific surface area. The relative viscosity of the component A is preferably 1.5-5.0 value determined under conditions of 25 deg.C and 1g/dL concentration by using a 96% concentrated sulfuric acid. The component B is a coal ash produced in a thermal power station, etc., where coal is burned by a pulverized coal combustion method. A reinforcing material (preferably a glass fiber, a platy mica, etc.), is preferably compounded in an amount of
-
公开(公告)号：JPH111094A
公开(公告)日：1999-01-06
申请号：JP15272797
申请日：1997-06-11
Applicant: UNITIKA LTD
Inventor： WAKAMURA KAZUYUKI , OSAWA TADASHI , HASEGAWA HIROZO
IPC: B43L19/00
Abstract: PROBLEM TO BE SOLVED: To make a vessel highly stable in dimensions even in an atmosphere of high temperature and high humidity and to make it light in weight, strong and free from leakage of a liquid by a method wherein a threaded part for fitting a cover part is formed in the part of the opening and the whole or a part of the vessel is constituted of reinforced polyamide resin wherein phyllosilicate is dispersed uniformly at a molecular level. SOLUTION: In a vessel 1 of a correction liquid for erasing a letter, a threaded part 2 for fitting a cover part 4 for taking out the liquid is formed in the part of the opening and the whole or a part of the vessel is constituted of reinforced polyamide resin wherein phyllosilicate is dispersed uniformly at a molecular level. In other words, a multilayer material of each one sheet of the phyllosilicate or an average stratified body of five or less layers thereof is dispersed by 70% or above preferably in the polyamide resin without forming a mass. The phyllosilicate is contained by 0.01-10 wt.% preferably in the reinforced polyamide resin. As to the phyllosilicate, minerals of a swelling fluoromica isinglass series are suitable and, as for the polyamide resin, nylon 6 and nylon 66 can be used suitably, in particular.
-
公开(公告)号：JPH10279792A
公开(公告)日：1998-10-20
申请号：JP8482497
申请日：1997-04-03
Applicant: UNITIKA LTD
Inventor： OSAWA TADASHI , WAKAMURA KAZUYUKI , NAGAI YOSHITERU , YAMAZAKI MASAAKI
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition excellent in sliding characteristics, i.e., abrasive and frictional characteristics as well as mechanical properties, by including a composition obtained by homogenously dispersing a swellable fluorinated mica-based mineral in a polyamide-based resin and ultrahigh molecular weight polyolefin microparticles. SOLUTION: This composition comprises (A) a polyamide-based resin composition obtained by homogenously dispersing (ii) 0.01-100 pts.wt. of a swellable fluorinated mica-based mineral in (1) 100 pts.wt. of a polyamide resin, and (B) ultrahigh molecular weight polyolefin microparticles. The component (ii) is obtained by mixing oxides, such as silicon oxide and magnesium oxide, with various fluorides, melting the mixture and conducting a crystal growth of the objective the fluorinated mica-based mineral during the cooling process. The component B consists of a polyethylene having a weight-average molecular weight of 10 -3×10 , preferably, in the form of minute powder having a bulk density of 0.94 g/cm or higher and an average particle diameter of 100 μm or less. The weight ratio of the component A to the component B is preferably (99:1)-(40:60).
-
公开(公告)号：JPH10204290A
公开(公告)日：1998-08-04
申请号：JP983597
申请日：1997-01-23
Applicant: UNITIKA LTD
Inventor： WAKAMURA KAZUYUKI , OSAWA TADASHI
Abstract: PROBLEM TO BE SOLVED: To obtain a binding band composed of a resin composition excellent in moldability, mass-productiveness and bending resistance at low temperatures. SOLUTION: The whole or a part of a material constituting this binding band 1 comprises a resin composition obtained by compounding 100 pts.wt. of a polyamide resin with 0.01-5 pts.wt. of a lubricant and 0.01-3 pts.wt. of a crystal nucleating agent. A resin prepared by blending a polyamide resin with nylon 66 or nylon 6 is used as the polyamide resin. Preferably, 100 pts.wt. of the polyamide resin is further mixed with 1-10 pts.wt. of an unmodified elastomer.
-
公开(公告)号：JPH10219103A
公开(公告)日：1998-08-18
申请号：JP2129297
申请日：1997-02-04
Applicant: UNITIKA LTD
Inventor： WAKAMURA KAZUYUKI , OSAWA TADASHI
IPC: C08L77/00
Abstract: PROBLEM TO BE SOLVED: To obtain a flame-retardant polyamide resin compsn. excellent in flame retardance, toughness, and flowability by compounding a polyamide resin with a bromine-based flame retardant, an auxiliary flame retardant, an acid- modified elastomer, and a flowability improver. SOLUTION: This compsn. contains 40-87 pts.wt. polyamide resin, 10-50 pts.wt. bromine-based flame retardant, 1-20 pts.wt. auxiliary flame retardant, 1-10 pts.wt. acid-modified elastomer, and 0.5-5 pts.wt. flowability improver, the sum of all the ingredients being 100 pts.wt. The acid-modified elastomer is one prepd. by modifying a polyolefin formed from at leat one monomer selected from among ethylene, propylene, and butene with an unsatd. carboxylic acid or its deriv.; one prepd. by modifying an XYX block copolymer or an XY block copolymer (wherein X is a vinylarom. compd. polymer block, and Y is an olefin compd. polymer block) with an unsatd. carboxylic acid or its deriv.; or one comprising a mixture of the above-mentioned acid-modified elastomers.
-
Patent Agency Ranking
公开(公告)号：JPH10204285A
公开(公告)日：1998-08-04
申请号：JP607497
申请日：1997-01-17
Applicant: UNITIKA LTD
Inventor： NAGAI YOSHITERU , YAMAZAKI MASAAKI , KAMIYA KENJI , OSAWA TADASHI
Abstract: PROBLEM TO BE SOLVED: To obtain the subject part excellent in appearance, surface luster, smoothness, dimensional accuracy, heat resistance and antimicrobial properties without causing a sink mark, by constituting a grip part of a product from a reinforced polyamide resin into which a phyllosilicate is uniformly dispersed. SOLUTION: The whole or a part of a grip part of a product such as a grip of a cooking tool, a handle of a cutter such as a knife, a handrail, rings hung from an upper rod in an electric train is composed of a reinforced polyamide into which 0.01 to 10wt.% of a phyllosilicate is uniformly dispersed. Preferably, 100 pts.wt. of the reinforced amide resin is further compounded with 0.1-10 pts.wt. of an antimicrobial agent.
-
公开(公告)号：JPH10147710A
公开(公告)日：1998-06-02
申请号：JP30601996
申请日：1996-11-18
Applicant: UNITIKA LTD
Inventor： NAGAI YOSHITERU , WAKAMURA KAZUYUKI , SAITOU TAKASHI , OSAWA TADASHI
Abstract: PROBLEM TO BE SOLVED: To provide a polyamide compsn. excellent in the mechanical properties such as bending strength, flexural modules and impact resistance, and durability, and capable of forming a molding free of warpage and undulation and having an excellent appearance, and also provide a process for producing it and automobile parts produced by molding it. SOLUTION: This compsn. comprises 100 pts.wt. polyamide resin having a relative viscosity of 2.0 to 2.5 and an amino terminal group conc. of not higher than 40mmol/kg 155 to 400 pts.wt. glass fibers having a diameter of 9μm or larger and a length of 5.0mm or less. 100 pts.wt. polyamide resin and 0 to 100 pts.wt. glass fibers are fed through the first feed port of an extruder. After melting the polyamide resin, the balance of the glass fibers is fed through the second feed port (side feeder) of the extruder.
-
公开(公告)号：JPH1143601A
公开(公告)日：1999-02-16
申请号：JP20419597
申请日：1997-07-30
Applicant: UNITIKA LTD
Inventor： WAKAMURA KAZUYUKI , OSAWA TADASHI
IPC: C08J5/00 , C08K3/00 , C08K3/20 , C08K3/22 , C08K5/03 , C08K7/02 , C08K7/14 , C08K13/00 , C08L77/00
Abstract: PROBLEM TO BE SOLVED: To provide a resin composition which can be desirably used to give moldings excellent in mechanical strengths such as bending strength and compressive strength and useful for building members, especially segment bolt box covers by selecting a resin composition comprising a polyamide resin, fly ash, a flame retardant and a flame retardant aid, wherein the fly ash has a specified specific surface area. SOLUTION: There is provided a resin composition comprising 29-88 pts.wt. polyamide resin, 1-60 pts.wt. fly ash, 10-30 pts.wt. flame retardant and 1-10 pts.wt. flame retardant aid (the total amount of the composition is 100 pts.wt.), wherein the specific surface area of the fly ash is 1,000-8,000 cm /g. The polyamide resin is exemplified by a linear polyamide (polylactam) obtained by the ring opening polymerization of a cyclic lactam or a linear polyamide obtained by the polycondensation of e.g. an aliphatic dicarboxylic acid or an aromatic dicarboxylic acid with a diamine. The amount of the fly ash added is 1-60 pts.wt. per 100 pts.wt. total composition. The flame retardant is particularly desirably a halogen-containing flame retardant, and the flame retardant aid is particularly desirably antimony trioxide.
-
公开(公告)号：JPH1112459A
公开(公告)日：1999-01-19
申请号：JP16932397
申请日：1997-06-26
Applicant: UNITIKA LTD
Inventor： OSAWA TADASHI , WAKAMURA KAZUYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a polyamide resin composition and a molding made therefrom, desirably used as a door check lever of e.g. an automobile and being excellent slidability such as frictional characteristics and abrasion characteristics. SOLUTION: This composition comprises 95-70 pts.wt. polyamide resin having a relative viscosity of 1.0-4.5 and 5-30 pts.wt. ultrahigh-molecular-weight polyolefin. This composition may further contain at most 5 pts.wt., per 100 pts.wt. composition, at least one additive selected among talc, a phosphate powder and a lubricating oil.
-
公开(公告)号：JPH10219105A
公开(公告)日：1998-08-18
申请号：JP2420697
申请日：1997-02-07
Applicant: UNITIKA LTD
Inventor： SAITOU SHIYOUJI , OSAWA TADASHI , WAKAMURA KAZUYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a polyamide resin compsn. which has a high stiffness, exhibits a low warp, and is excellent in external appearance, such as smoothness, and flame retardance and a housing part which is obtd. by molding the same and is used for electric appliance represented by an OA appliance such as a note-book-type personal computer or a word processor. SOLUTION: This compsn. comprises 20-69wt.% polyamide resin mixture, 10-30wt.% bromine-based flame retardant, 1-10wt.% auxiliary flame retardant, and 20-69wt.% platy silicate or glass flakes, the sum of all the ingredients being 100wt.%. The polyamide resin mixture comprises 50-95wt.% crystalline polyamide resin and 50-5wt.% amorphous polyamide resin.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.022 seconds)
