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101. 发明专利

JP2002363283A POLYAMIDE ACID, POLYIMIDE RESIN OBTAINED FROM THE SAME AND UTILIZATION OF THEM FOR CIRCUIT SUBSTRATE 失效
公开(公告)号：JP2002363283A
公开(公告)日：2002-12-18
申请号：JP2001170664
申请日：2001-06-06
申请人： NITTO DENKO CORP
发明人： KANESHIRO NAOTAKA , MOCHIZUKI SHU , FUKUOKA TAKAHIRO , KONDO TAKASHI
IPC分类号： C08G73/10 , H05K1/03 , H05K1/05
摘要： PROBLEM TO BE SOLVED: To obtain a new polyimide resin having both low thermal linear expansion coefficient and dielectric constant, a polyamide acid giving the resin and a circuit substrate without forming a crack or peeling of its insulating layer and a warpage, and the circuit substrate having a suspension. SOLUTION: The polyamide acid is obtained by reacting acid anhydrides consisting of an anhydride selected from pyromellitic acid anhydride and 3,3',4,4'- biphenyltetracarboxylic acid dianhydride, and 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane with aromatic diamines consisting of 2,2'-disubstituted-4,4'- diaminobiphenyls and an aromatic diamine selected from 2,2-bis (4- aminophenoxyphenyl)propanes, 1,1-bis(4-(4-aminophenoxy)-3-t-butyl-6- methylphenyl)butane and 2,2-bis(3-amino-4-methylphenyl)diisopropylbenzenes in an organic solvent.

102. 发明专利

JP2002348330A SIDE CHAIN-TYPE LIQUID CRYSTALLINE POLYMER, LIQUID CRYSTALLINE COMPOSITION, PREPARATION OF HOMEOTROPICALY ORIENTED LIQUID CRYSTALLINE FILM, AND HOMEOTROPICALY ORIENTED LIQUID CRYSTALLINE FILM 失效
公开(公告)号：JP2002348330A
公开(公告)日：2002-12-04
申请号：JP2001158151
申请日：2001-05-28
申请人： NITTO DENKO CORP
发明人： NAKANISHI SADAHIRO , SHUDO SHUNSUKE , KAMIJO TAKUJI , NAKANO SHUSAKU , MOCHIZUKI SHU
IPC分类号： G02B5/30 , C08F220/30 , G02F1/13 , G02F1/13363 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystalline polymer which is capable of orientating homeotropicaly on a base board without using a directly orientating film and to provide a process for the preparation of a homeotropicaly oriented liquid crystalline film using the above liquid crystalline polymer. SOLUTION: The side chain-type liquid crystalline polymer contains (a) a monomer unit containing a side chain of a liquid crystalline fragment having no alicyclic ring structure and a monomer unit containing a side chain of a liquid crystalline fragment having an alicyclic ring structure; and the process for the preparation of a homeotropicaly oriented liquid crystalline film, comprises a step of coating the above side chain-type liquid crystalline polymer on a base board not provided with any vertical-orientation film, then a step of orientating homeotropicaly the above liquid crystalline polymer in the state of the liquid crystal, and thereafter a step of fixing at the situation of maintaining the oriented state.

103. 发明专利

JP2002338535A POLYHYDROXY DENDRIMER AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002338535A
公开(公告)日：2002-11-27
申请号：JP2001147657
申请日：2001-05-17
申请人： NITTO DENKO CORP
发明人： SADAYORI NAOKI , MOCHIZUKI SHU
IPC分类号： C07C229/16 , C07C227/18
摘要： PROBLEM TO BE SOLVED: To provide a new water-soluble polymer. SOLUTION: This polyhydroxy dendrimer is represented by formula (Ia) or formula (Ib) [wherein, R means formula (II); R' means hydrogen or methyl group; n is an integer of 2-10]. The method for producing the polyhydroxyl dendrimer is provided.

104. 发明专利

JP2002214431A TILTINGLY ALIGNED FILM AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002214431A
公开(公告)日：2002-07-31
申请号：JP2001007569
申请日：2001-01-16
申请人： NITTO DENKO CORP
发明人： KAMIJO TAKUJI , NAKANO SHUSAKU , SHUDO SHUNSUKE , NAKANISHI SADAHIRO , MOCHIZUKI SHU
IPC分类号： G02B5/30 , C08F220/30 , C08J5/18 , G02F1/1335 , G02F1/13363 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide a tiltingly aligned film in which the tiltingly aligned state of a new liquid crystal polymer has been fixed and to provide a method for producing the film. SOLUTION: In the tiltingly aligned film in which a rodlike nematic liquid crystal polymer has been tiltingly aligned, the rodlike nematic liquid crystal polymer is a side chain type liquid crystal polymer containing a monomer unit (a) containing a side chain of a liquid-crystalline fragment and a monomer unit (b) containing a side chain of a non-liquid-crystalline fragment.

105. 发明专利

JP2002214416A LIGHT DIFFUSING PLATE, OPTICAL ELEMENT AND LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JP2002214416A
公开(公告)日：2002-07-31
申请号：JP2001008006
申请日：2001-01-16
申请人： NITTO DENKO CORP
发明人： NAKANISHI SADAHIRO , MIYATAKE MINORU , NAKANO SHUSAKU , MOCHIZUKI SHU
IPC分类号： G02B5/02 , G02B5/30 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a light diffusing plate which uses a birefringent film having micro-regions with birefringent characteristics different from those of the birefringent film contained and dispersed therein, is excellent in terms of usefulness resulting from easiness of manufacture and excellent thermal and chemical stability, is capable of improving brightness by supplying linearly polarized light which reduces absorption loss caused by a polarizing plate and also hardly induces any coloring problem and also is applicable to a reflective liquid crystal display device or the like and further of which the micro-regions are aligned perpendicular to the stretch direction of the stretched birefringent film. SOLUTION: In the light diffusing plate having the micro-regions contained and dispersed in the birefringent film and with the birefringent characteristics different from those of the birefringent film, the light diffusing plate is characterized by having the birefringent film composed of a birefringent stretch film, further by having the micro-region composed of a positive uniaxial liquid crystal polymer, by having the length of the micro-region in the stretch axis direction longer than the length in a direction perpendicularly intersecting the stretch axis and by having the liquid crystal polymer aligned perpendicular to the stretch axis of the birefringent stretch film.

106. 发明专利

JP2002146085A METHOD FOR PRODUCING POROUS POLYIMIDE AND POROUS POLYIMIDE 失效
公开(公告)号：JP2002146085A
公开(公告)日：2002-05-22
申请号：JP2000345617
申请日：2000-11-13
申请人： NITTO DENKO CORP
发明人： KANEDA MITSUHIRO , YAMAMOTO TAKAYUKI , MOCHIZUKI SHU , FUKUOKA TAKAHIRO
IPC分类号： C08J9/26 , C08G73/10 , C08J9/28 , H05K1/03
摘要： PROBLEM TO BE SOLVED: To obtain a porous polyimide comprising a microcell structure and having heat resistance and a low dielectric constant. SOLUTION: This method for producing a porous polyimide is characterized by adding a dispersible compound to a polyimide precursor, forming a microphase-separated structure having

107. 发明专利

JP2002088135A URETHANE COPOLYMER AND OPTICAL MATERIAL USING THE SAME 失效
公开(公告)号：JP2002088135A
公开(公告)日：2002-03-27
申请号：JP2001014007
申请日：2001-01-23
申请人： NITTO DENKO CORP
发明人： NISHIO AKINORI , MOCHIZUKI SHU
IPC分类号： G02B1/04 , C08G18/32 , C08G18/76
摘要： PROBLEM TO BE SOLVED: To obtain a urethane copolymer from a nonequivalent reactive diisocyanate monomer and two kinds of diol monomers to be effectively reacted with, and a polyurethane having various refractive indexes by carrying out a monomer sequence control. SOLUTION: This urethane copolymer is represented by formula (R1 and R2 are each independently a hydrogen atom or a 1-10C alkyl group; R3 and R4 are each independently a bifunctional alcohol residue; n is 1-10; l and m are each an integer of 1-10,000). This optical material is obtained by using the urethane copolymer.

108. 发明专利

JP2002012648A POLYURETHANE COMPOUND AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002012648A
公开(公告)日：2002-01-15
申请号：JP2000349043
申请日：2000-11-16
申请人： NITTO DENKO CORP
发明人： NISHIO AKINORI , MOCHIZUKI SHU
IPC分类号： C08G18/72 , C08G18/24
摘要： PROBLEM TO BE SOLVED: To obtain a polyurethane in which the sequence of an aromatic isocyanate monomer and an aliphatic isocyanate monomer is regularly controlled. SOLUTION: This polyurethane compound has structural units represented by the following formulae (1), (2) and (3) [1+m+n is an integer of 3-10,000; and 0.5

109. 发明专利

JP2001354732A SIDE CHAIN TYPE LIQUID CRYSTALLINE POLYMER AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2001354732A
公开(公告)日：2001-12-25
申请号：JP2000137196
申请日：2000-05-10
申请人： NITTO DENKO CORP
发明人： NAKANISHI SADAHIRO , NAKANO SHUSAKU , MOCHIZUKI SHU , YOSHIOKA MASAHIRO
IPC分类号： G02F1/13 , C08F220/30 , C09K19/38
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystalline polymer which has a controllable refraction index or birefringence. SOLUTION: The side chain type liquid crystalline polymer comprises (a) a monomer unit having a liquid crystalline fragmental side chain and (b) a monomer unit having a non-liquid crystalline fragmental side chain.

110. 发明专利

JP2001323125A CHOLESTERIC LIQUID CRYSTAL COMPOSITION, ORIENTED FILM AND MULTICOLOR REFLECTIVE PLATE 失效
公开(公告)号：JP2001323125A
公开(公告)日：2001-11-20
申请号：JP2000147230
申请日：2000-05-19
申请人： NITTO DENKO CORP
发明人： YOSHIOKA MASAHIRO , NAKANO SHUSAKU , NAKANISHI SADAHIRO , MOCHIZUKI SHU
IPC分类号： G02B5/20 , C08F2/46 , C08F299/00 , C08L33/14 , C09K19/38 , G02B5/30 , G02F1/13 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a cholesteric liquid crystal composition which can form a monodomain oriented film having excellent heat resistance and applicability to a multicolor reflective plate. SOLUTION: The cholesteric liquid crystal composition comprises a crosslinked nematic liquid crystal polymer, a crosslinked cholesteric liquid crystal polymer and a cholesteric phase-providing monomer.

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