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11. 发明授权

US4670535A Photosensitive polyimide precursor and process for producing the same 失效
标题翻译：感光聚酰亚胺前体及其制备方法
公开(公告)号：US4670535A
公开(公告)日：1987-06-02
申请号：US875044
申请日：1986-06-17
申请人： Akitoshi Sugio , Takao Kawaki , Katsushige Hayashi
发明人： Akitoshi Sugio , Takao Kawaki , Katsushige Hayashi
IPC分类号： C08G73/00 , C08F290/00 , C08F299/02 , C08G73/10 , C08G73/12 , G03F7/038 , C08G16/00
CPC分类号： C08G73/1082 , G03F7/0387
摘要： The photosensitive polyimide precursor of the invention has a recurring unit represented by the following general formula [I]: ##STR1## (R.sub.1 represents a tetravalent aromatic hydrocarbon residue; R.sub.2 and R.sub.3 each represent a divalent aromatic or aliphatic hydrocarbon residue; and R.sub.4 represents a divalent aromatic hydrocarbon residue represented by ##STR2## wherein R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12, identical or different, each represent hydrogen atom, a halogen group or an alkyl group). The photosensitive polyimide precursor of the invention has a viscosity of 50 centipoises or above as measured at 23.degree. C. in the state of a 10% (by weight) solution in N,N-dimethylacetamide. Its photosensitivity is as high as about 20-100 times that of prior products. After heat cyclization, it exhibits a heat resistance of 400.degree. C. or above.The photosensitive polyimide precursor of the invention can be produced by subjecting a tetracarboxylic acid dianhydride and a diamino compound to a polycondensation reaction in an organic polar solvent.
摘要翻译：本发明的光敏聚酰亚胺前体具有由以下通式[I]表示的重复单元：（R 1表示四价芳烃残基; R 2和R 3各自表示二价芳族或脂族烃 R4代表由下式表示的二价芳烃残基：其中R5，R6，R7，R8，R9，R10，R11和R12相同或不同，分别代表氢原子，卤素基团或烷基）。本发明的光敏聚酰亚胺前体在23℃下的粘度为10厘泊（N，N-二甲基乙酰胺）溶液的状态下的粘度为50厘泊或更高。其光敏度高达现有产品的约20-100倍。热环化后，其耐热性为400℃以上。本发明的感光性聚酰亚胺前体可以通过在有机极性溶剂中使四羧酸二酐和二氨基化合物进行缩聚反应来制造。

12. 发明申请

US20100136287A1 POLYMER FILM 有权
标题翻译：聚合物胶片
公开(公告)号：US20100136287A1
公开(公告)日：2010-06-03
申请号：US12520558
申请日：2007-12-21
申请人： Kenji Kato , Katsushige Hayashi , Jun Yokoyama
发明人： Kenji Kato , Katsushige Hayashi , Jun Yokoyama
IPC分类号： B32B3/10
CPC分类号： C08J5/18 , B29C59/04 , C08J2369/00 , G02B5/0221 , G02B5/0278 , G02F1/133606 , Y10T428/24355
摘要： The present invention can provide a polymer film having an Ra (arithmetic average roughness) of 0.5 μm to 2.5 μm, an Ry (maximum height) of 3 μm to 11 μm, an Rz (ten-point average height) of 3 μm to 8 μm, and a light transmittance of 85% or higher. A preferable embodiment of the present invention can provide, at the same time, an optical diffusion function, an improved luminance, a transmittance and the like which are of a sufficient level not realized conventionally. In a still preferable embodiment, Sm (average concave-concave/convex-convex interval) of 90 μm to 160 μm and the average inter-local peak interval (S) is 5 μm to 15 μm.
摘要翻译：本发明可以提供Ra（算术平均粗糙度）为0.5μm〜2.5μm，Ry（最大高度）为3μm〜11μm，Rz（10点平均高度）为3μm〜8μm的聚合物膜 μm，透光率为85％以上。本发明的优选实施方式可以同时提供通常没有实现的足够水平的光学扩散功能，改进的亮度，透射率等。在一个更优选的实施方式中，90μm〜160μm的Sm（平均凹入/凸凸间隔）和平均局部间间隔间隔（S）为5μm〜15μm。

13. 发明授权

US5380907A Method for preparing aromatic carbonate 失效
标题翻译：芳香族碳酸酯的制备方法
公开(公告)号：US5380907A
公开(公告)日：1995-01-10
申请号：US69604
申请日：1993-06-01
申请人： Masamichi Mizukami , Katsushige Hayashi , Katsuhiro Iura , Takao Kawaki
发明人： Masamichi Mizukami , Katsushige Hayashi , Katsuhiro Iura , Takao Kawaki
IPC分类号： B01J27/08 , B01J27/13 , B01J31/04 , B01J31/12 , B01J31/24 , C07B61/00 , C07C68/00 , C07C69/96
CPC分类号： C07C68/005
摘要： A process for producing an aromatic carbonate which comprises:reacting(a) an aromatic hydroxy compound with(b) carbon monoxide in the presence of(c) an oxidation agent,(d) a catalyst comprising a palladium compound or impregnated palladium catalyst,(e) a co-catalyst comprising a manganese compound, a cobalt compound or a copper compound, and(f) at least one nitrile compoundat a temperature of 20.degree. to 300.degree. C.
摘要翻译：一种制备芳族碳酸酯的方法，其包括：（a）芳族羟基化合物与（b）一氧化碳在（c）氧化剂存在下反应，（d）包含钯化合物或浸渍的钯催化剂的催化剂（ e）包含锰化合物，钴化合物或铜化合物的助催化剂，和（f）至少一种腈化合物，温度为20-300℃。

14. 发明授权

US5051309A Anti-dazzling polycarbonate polarizing plate 失效
标题翻译：防炫目聚碳酸酯偏光板
公开(公告)号：US5051309A
公开(公告)日：1991-09-24
申请号：US512182
申请日：1990-04-20
申请人： Takao Kawaki , Ryozo Kawai , Katsushige Hayashi , Masaki Nagata
发明人： Takao Kawaki , Ryozo Kawai , Katsushige Hayashi , Masaki Nagata
IPC分类号： G02B1/04 , G02B5/30 , G02B27/28
CPC分类号： G02B1/04 , G02B27/281 , G02B5/3033 , Y10S428/913 , Y10T428/26 , Y10T428/31507 , Y10T428/31935
摘要： An anti-dazzling polycarbonate polarizing plate is formed with a polarizing thin layer composed of a polymeric film having a dichroic substance adsorbed on and oriented in the polymeric film, and a polycarbonate sheet having a retardation value of at least 2000 nm bonded to one or both surfaces of the polarizing thin layer.

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