公开(公告)号：US4439597A

公开(公告)日：1984-03-27

申请号：US369065

申请日：1982-04-16

申请人： Henry K. Hall, Jr. ,  Anne B. Padias

发明人： Henry K. Hall, Jr. ,  Anne B. Padias

IPC分类号： C08G63/78 ,  C08G63/85 ,  C08G63/34

CPC分类号： C08G63/85 ,  C08G63/78

摘要： In the two stage reaction of terephthalic acid with 1,4-butanediol to produce polybutylene terephthalate in which acid and diol are first subjected to catalytic esterification/oligomerization and the resulting products are thereafter subjected to catalytic polycondensation, the co-production of tetrahydrofuran is significantly reduced by conducting the polycondensation reaction prior to completion of the esterification/oligomerization reaction.

摘要翻译： 在对苯二甲酸与1,4-丁二醇的两阶段反应中，生成聚对苯二甲酸丁二醇酯，其中酸和二醇首先进行催化酯化/低聚，然后使所得产物进行催化缩聚，四氢呋喃的共同生产显着 通过在酯化/低聚反应完成之前进行缩聚反应来还原。

公开(公告)号：US4346213A

公开(公告)日：1982-08-24

申请号：US181275

申请日：1980-08-25

申请人： Henry K. Hall, Jr. ,  Anne B. Padias

发明人： Henry K. Hall, Jr. ,  Anne B. Padias

IPC分类号： C08G63/00 ,  C08G63/66 ,  C08G63/78 ,  C08G63/85 ,  C08G63/34

CPC分类号： C08G63/85 ,  C08G63/78

摘要： In the two stage reaction of terephthalic acid with 1,4-butanediol to produce polybutylene terephthalate in which acid and diol are first subjected to catalytic esterification/oligomerization and the resulting products are thereafter subjected to catalytic polycondensation, the co-production of tetrahydrofuran is significantly reduced by conducting the polycondensation reaction prior to completion of the esterification/oligomerization reaction.

摘要翻译： 在对苯二甲酸与1,4-丁二醇的两阶段反应中，生成聚对苯二甲酸丁二醇酯，其中酸和二醇首先进行催化酯化/低聚，然后使所得产物进行催化缩聚，四氢呋喃的共同生产显着 通过在酯化/低聚反应完成之前进行缩聚反应来还原。

公开(公告)号：US5744267A

公开(公告)日：1998-04-28

申请号：US710084

申请日：1996-09-10

申请人： Klaus Meerholz ,  Bernard Kippelen ,  Nasser N. Peyghambarian ,  Scott R. Lyon ,  Henry K. Hall, Jr. ,  Anne B. Padias ,  (NFN) Sandalphon ,  Boris L. Volodin

发明人： Klaus Meerholz ,  Bernard Kippelen ,  Nasser N. Peyghambarian ,  Scott R. Lyon ,  Henry K. Hall, Jr. ,  Anne B. Padias ,  (NFN) Sandalphon ,  Boris L. Volodin

IPC分类号： G03H1/02 ,  G03H1/04 ,  G03C1/72

CPC分类号： G03H1/02 ,  G03H2001/026 ,  G03H2001/0264 ,  G03H2260/54

摘要： A photorefractive (PR) device comprises of a layer of a novel photorefractive polymer composite sandwiched inbetween two transparent electrodes. The PR polymer composite comprises a photoconducting polymer, a photosensitizer, a novel second-order, non-linear optical chromophore, and a plasticizer in an amount sufficient to provide the PR polymer composite with a glass transition temperature below about 45.degree. C. The PR polymer composite is capable of internally storing image patterns generated by interfering two coherent light beams inside the material. The PR polymer composite shows high diffraction efficiencies (near 100%) and high net two-coupling gain (>200 cm.sup.-1). The writing of information is reversible. Consequently, the device is suitable for read/write holographic storage and real-time image processing applications, and is capable of being poled at essentially room temperature. The light source is an integrated semiconductor laser and the detector is a commercial Si photodiode or a CCD camera.

摘要翻译： 光折射（PR）装置包括夹在两个透明电极之间的一层新的光折变聚合物复合材料。 PR聚合物复合材料包括光导体聚合物，光敏剂，新颖的二阶非线性光学发色团和足以提供玻璃化转变温度低于约45℃的PR聚合物复合材料的增塑剂.PR 聚合物复合材料能够内部存储通过在材料内部干涉两个相干光束而产生的图像图案。 PR聚合物复合材料显示出高衍射效率（接近100％）和高净双耦合增益（> 200cm-1）。 撰写信息是可逆的。 因此，该装置适用于读/写全息存储和实时图像处理应用，并且能够在基本上室温下极化。 光源是集成半导体激光器，检测器是商业Si光电二极管或CCD相机。