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公开(公告)号：JPH03199446A
公开(公告)日：1991-08-30
申请号：JP34115389
申请日：1989-12-28
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , KODERA YASUICHI
Abstract: PURPOSE:To obtain the title cloth for liquid crystal printed boards by forming a cloth using conjugate fibers from a main chain-type liquid crystal resin and another resin followed by heat treatment of the cloth and then removing the latter resin. CONSTITUTION:Firstly, a cloth is formed using a conjugate fiber produced by melting in a separate manner a main chain-type liquid crystal resin and another resin followed by combination both the resins and then delivery through a spinneret. Thence, the cloth is heat-treated at temperatures >=(the melting point of the former resin minus 70 deg.C) esp. >=(this melting point minus 50 deg.C) to effect the solid phase polymerization of the former resin followed by removing the latter resin, thus obtaining the objective cloth consisting of the former resin with the fineness of the single fiber of
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公开(公告)号：JPH0345634A
公开(公告)日：1991-02-27
申请号：JP18153489
申请日：1989-07-13
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , MIURA SADAO
IPC: C08J7/00 , C08G75/02 , C08G75/0295 , C08G75/06
Abstract: PURPOSE:To increase the modulus and heat-distorsion temp. of a polyarylene sulfide by irradiating the polyarylene sulfide with rays of light and thermally treating it in an oxygen-contg. atmosphere at a specified temp. CONSTITUTION:A polyarylene sulfide (molding) is irradiated with rays of light of one lux or higher for at least one sec at a temp. pref. at least 50 deg.C higher than the transition point in an oxygen-contg. atmosphere to adjust the thermal shrinkage of the irradiated polyarylene sulfide at the m.p. of an unirradiated polyarylene sulfide to 5-80%. The irradiated polyarylene sulfide is thermally treated at a temp. higher than the temp. 80 deg.C lower than the m.p., pref. at a temp. at least 10 deg.C higher than the m.p., in an oxygen-contg. atmosphere and if necessary under a specified shrinkage.
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43.发明专利
公开(公告)号：JPH02182762A
公开(公告)日：1990-07-17
申请号：JP343289
申请日：1989-01-10
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , KODERA YASUICHI
IPC: C08L67/00 , C08L101/00
Abstract: PURPOSE:To provide the subject composite material composed of a main-chain liquid crystal resin containing a mesogen group on the main chain and a resin containing acid anhydride group, etc., in the molecule, having uniform structure, good physical properties and excellent fibrillation resistance and suitable as high-strength fiber, reinforcing material, etc. CONSTITUTION:The objective material can be produced by separately melting and forming (A) a main-chain liquid crystal resin containing mesogen group on the main chain and having fibrous form of
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公开(公告)号：JPH0291210A
公开(公告)日：1990-03-30
申请号：JP24525988
申请日：1988-09-29
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , KODERA YASUICHI , NISHIYAMA HIROTAKA
IPC: D06M13/08 , D01F6/12 , D01F6/30 , D01F6/32 , D01F8/10 , D06C29/00 , D06M13/02 , D06M101/00 , D06M101/16 , D06M101/18 , D06M101/20 , D06M101/22
Abstract: PURPOSE:To provide the subject inexpensive fibers having rich chemical resistance and high strength by spinning a copolymerized fluororesin containing tetrafluoroethylene and any other thermoplastic resin into a conjugate fiber, subjecting the prepared fiber to a drawing process, etc., and subsequently removing the other polymer from the fiber or dividing the fiber. CONSTITUTION:A copolymerized fluororesin containing at least tetrafluoroethylene (preferably tetrafluoroethylene-perfluoroethylene copolymer, tetrafluoroethylene-hexafluoropropylene copolymer or tetrafluoroethylene-ethylene copolymer) and any other thermoplastic resin are spun preferably in the presence of a spinning cylinder heated to a temperature of >=150 deg.C below a spinneret into a conjugate fiber, followed by drawing the prepared fiber into a length of two times or more, or spun at a high speed of >=500m/min, followed by removing the other polymer and/or dividing the fiber to provide the objective fibers each having a fineness of =1g/d.
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公开(公告)号：JPH0232156A
公开(公告)日：1990-02-01
申请号：JP18265088
申请日：1988-07-21
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , YAMAMOTO MASAHARU
IPC: C08K3/00 , C08J5/18 , C08L67/00 , C08L67/02 , C08L77/00 , C08L77/12 , C08L101/00 , C08L101/12 , D01F8/00 , D01F8/04
Abstract: PURPOSE:To obtain a low-cost molded product, containing an electrically conductive substance in the interior of a liquid crystal resin and having a high strength, electric conductivity and heat resistance. CONSTITUTION:A molded electrically conductive product, consisting of a liquid crystal resin, containing an electrically conductive substance in the interior thereof and having OMEGA.cm specific resistance. A liquid crystal polyester or polyester amide is used as the liquid crystal resin. An electrically conductive layer structure containing >=5wt.% electrically conductive substance or streaky structure or both are present in the interior and a polymer forming the structure is a liquid noncrystal resin with >=2% moisture absorption. Carbon black, copper, aluminum, iron, etc., are used as the electrically conductive substance and the liquid crystal resin having >=13000 molecular weight with cavities present therein is used.
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Patent Agency Ranking
公开(公告)号：JPH01293316A
公开(公告)日：1989-11-27
申请号：JP12468788
申请日：1988-05-20
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , FUKUNAGA TOSHIHIRO
IPC: C08F12/00 , G02F1/133 , G02F1/1339
Abstract: PURPOSE:To improve heat resistance and chemical resistance without damaging conductive films and polarizing films with which a spacer comes into contact by forming the spacer of arom. polymer fibers having a specific thermal deformation temp. CONSTITUTION:The spacer consists of the arom. polymer fibers having >=110 deg.C thermal deformation temp. Since the liquid crystal spacer is applied with about 100-200 deg.C heat in the process of the formation thereof, the higher heat resistance is more preferable and, therefore, the thermal deformation temp. is specified to >=110 deg.C. The thermal deformation temp. referred to here is defined as follows: When a creep test is carried out for 10 hours by applying tensile load or compressing load of 0.1g (denier) per unit on the fibers, the fibers having
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公开(公告)号：JPH01279922A
公开(公告)日：1989-11-10
申请号：JP3341788
申请日：1988-02-15
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO
IPC: C08G69/44
Abstract: PURPOSE:To obtain a liq. crystal resin molding at a low cost by controlling the specific surface area of a molding consisting of a liq. crystal polyarylate resin or a liq. crystal polyesteramide resin wherein a specified mesogenic group is in the main chain to be above a specified value. CONSTITUTION:This high-strength liq. crystal resin molding consists of a liq. crystal polyarylate resin having a mesogenic group of formula I in its main chain or a liq. crystal polyesteramide resin and has a specific surface area of 0.29m /g or larger and a strength of 63kg/mm or larger. In formula I, X and Y are each a terminal such as alkyl, alkoxy, or cyano; A-B is a unit such as -CH=N-, -N=N, formula II, or formula III. As the molding, fibers and films are pref. and above all, a high-strength liq. resin fiber which has never been obtd. before can be obtd. at a low cost for an ultrafine fiber. To obtain such an ultrafine fiber, at least one component of a composite fiber obtd. by using a liq. crystal polyarylate resin or a liq. crystal polyesteramide resin and by means of a high speed spinning is removed and the remaining component is heated to carry out solid state polymn. thereof.
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公开(公告)号：JPH01225541A
公开(公告)日：1989-09-08
申请号：JP5091988
申请日：1988-03-03
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , KODERA YASUICHI , YAMAMOTO MASAHARU
IPC: C08J7/06 , B32B7/02 , B32B9/00 , C08G63/16 , C08G63/18 , C08G63/19 , C08G63/60 , C08G63/68 , C08G69/46 , C08G69/48 , H01B1/20
Abstract: PURPOSE:To obtain a TLCP molded product having high conductivity, high heat resistance and high mechanical strength, by bonding a conductive inorg. substance to the surface of a molded product composed of specific liquid crystal polyallylate or polyesteramide having a mesogen group in the main chain thereof. CONSTITUTION:A molded product is composed of TLCP (liquid crystal polyallylate or polyesteramide) having a mesogen group in the main chain thereof and a conductive inorg. substance is bonded to the surface of the molded product and TLCP has no exothermic peak based on melting at 200 deg.C or more when the polymer is measured by a differential scanning calorimeter sealed by nitrogen. Herein, X and Y are a terminal group such as an alkyl group, an alkoxy group or a cyano group and A-B is a unit 2. As the conductive inorg. substance, tin oxide is especially pref. and the bonding amount thereof is at least 0.1wt.% or more and the film thickness thereof is 0.1mum or more.
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公开(公告)号：JPH01111095A
公开(公告)日：1989-04-27
申请号：JP26792287
申请日：1987-10-22
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO
Abstract: PURPOSE: To obtain the subject formed material consisting of an activated carbon fiber in a specific amount and an extremely fine sulfur-containing polyarylene fiber, rich in waterproofness, heat resistance, oil resistance, flame retarding property, radiation resistance, etc., and having a high activating property. CONSTITUTION: This activated carbon fiber-formed material having preferably 0.06-0.3 g/cm apparent density consists of (A) 95-40 wt.% activated carbon fiber (preferably having
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公开(公告)号：JPS6490255A
公开(公告)日：1989-04-06
申请号：JP24829687
申请日：1987-10-01
Applicant: TORAY INDUSTRIES
Inventor： UMEZAWA MASAO , KODERA YASUICHI
IPC: C08L67/00
Abstract: PURPOSE:To obtain a resin composite which can give an FRP having a high modulus, resistance to delamination, excellent pilling resistance, etc., and excelling in strength, modulus, impact resistance, etc., by performing the composite molding of a non-liquid crystal polyester and a liquid crystal polyarylate. CONSTITUTION:The composite material of a non-liquid crystal polyester (A) (e.g., polyethylene terephthalate) and a liquid crystal polyarylate (B) in an amount equivalent to a mixing ratio (B/A) of 40-60/60-40 is performed by, preferably, a polymer arrangement process or a core-sheath melt molding process to obtain a resin composite which is a type of core-sheath polymer arrangement in which many islands are dispersed in a matrix polymer or polymer blend in which the aspect ratio of the dispersed fibers is 10 or above, preferably, 100 or below, and in which at least three, per cross-section, fibrous materials of component B of a highly oriented and having a diameter or above and an elongation >=0.6%.
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