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    Cellulose Ester Compositions Having Low Bifringence and Films Made Therefrom Comprising a Plasticizer
    21.
    发明申请
    Cellulose Ester Compositions Having Low Bifringence and Films Made Therefrom Comprising a Plasticizer 有权
    具有低分数和低分子量的纤维素酯组合物包含增塑剂

    公开(公告)号：US20090050842A1

    公开(公告)日：2009-02-26

    申请号：US12196331

    申请日：2008-08-22

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    IPC分类号： C09K3/00

    CPC分类号： G02B5/3033 ,  C08B3/06 ,  C08B3/08 ,  C08B3/16 ,  C08J5/18 ,  C08J2301/14 ,  C08K5/0016 ,  C08L1/14

    摘要： The present invention relates to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films made with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have been found to have low intrinsic birefringence. Therefore, these films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). Such features make these films useful in polarizer, protective, and compensator films as well as molded optical parts, such as lenses. Furthermore, it has also been found that resins of the present invention can also be made to have “+C plate” behavior either by melt or solvent based processing, a characteristic which is not typical of cellulose esters. Such +C behavior allows films to be produced having unique compensatory behavior. Other embodiments of the invention relate to methods melt casting films while minimizing birefringence formation. Another embodiment of the invention is directed to films made from the cellulose esters described herein further comprising a plasticizer.

    摘要翻译： 本发明涉及用于光学应用的低羟基含量的纤维素酯，例如液晶显示（LCD）膜。 已经发现具有低羟基水平和给定比例的非乙酰酯与羟基水平的膜具有低固有双折射。 因此，这些膜可以铸造，模制或以其它方式取向，而没有明显的双折射或光学变形（即延迟）。 这些特征使得这些膜可用于偏振器，保护膜和补偿膜以及模制的光学部件，例如透镜。 此外，还发现本发明的树脂也可以通过熔体或溶剂基加工制成具有“+ C板”的行为，这是不是典型的纤维素酯的特征。 这种+ C行为允许制作具有独特补偿行为的胶片。 本发明的其它实施方案涉及熔融流延膜的方法，同时最小化双折射形成。 本发明的另一个实施方案涉及由本文所述的纤维素酯制成的进一步包含增塑剂的薄膜。

    Cellulose ester compositions having low birefringence and films made therefrom comprising a plasticizer
    23.
    发明授权
    Cellulose ester compositions having low birefringence and films made therefrom comprising a plasticizer 有权
    具有低双折射率的纤维素酯组合物和由其制成的膜包含增塑剂

    公开(公告)号：US08344134B2

    公开(公告)日：2013-01-01

    申请号：US12196331

    申请日：2008-08-22

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    IPC分类号： C08B3/16 ,  B29D7/01 ,  D01F1/02

    CPC分类号： G02B5/3033 ,  C08B3/06 ,  C08B3/08 ,  C08B3/16 ,  C08J5/18 ,  C08J2301/14 ,  C08K5/0016 ,  C08L1/14

    摘要： The present invention relates to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films made with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have been found to have low intrinsic birefringence. Therefore, these films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). Such features make these films useful in polarizer, protective, and compensator films as well as molded optical parts, such as lenses. Furthermore, it has also been found that resins of the present invention can also be made to have “+C plate” behavior either by melt or solvent based processing, a characteristic which is not typical of cellulose esters. Such +C behavior allows films to be produced having unique compensatory behavior. Other embodiments of the invention relate to methods melt casting films while minimizing birefringence formation. Another embodiment of the invention is directed to films made from the cellulose esters described herein further comprising a plasticizer.

    摘要翻译： 本发明涉及用于光学应用的低羟基含量的纤维素酯，例如液晶显示（LCD）膜。 已经发现具有低羟基水平和给定比例的非乙酰酯与羟基水平的膜具有低固有双折射。 因此，这些膜可以铸造，模制或以其它方式取向，而没有明显的双折射或光学变形（即延迟）。 这些特征使得这些膜可用于偏振器，保护膜和补偿膜以及模制的光学部件，例如透镜。 此外，还发现本发明的树脂也可以通过基于熔体或溶剂的加工而具有+ C板的性能，这是不是典型的纤维素酯的特征。 这种+ C行为允许制作具有独特补偿行为的胶片。 本发明的其它实施方案涉及熔融流延膜的方法，同时最小化双折射形成。 本发明的另一个实施方案涉及由本文所述的纤维素酯制成的进一步包含增塑剂的薄膜。

    CELLULOSE ESTER COMPOSITIONS HAVING LOW BIFRINGENCE AND FILMS MADE THEREFROM
    24.
    发明申请
    CELLULOSE ESTER COMPOSITIONS HAVING LOW BIFRINGENCE AND FILMS MADE THEREFROM 有权
    具有低分子量和薄膜的纤维素酯组合物

    公开(公告)号：US20100093996A1

    公开(公告)日：2010-04-15

    申请号：US12634731

    申请日：2009-12-10

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    IPC分类号： C08B3/16 ,  C08B3/18

    CPC分类号： G02B5/3033 ,  C08B3/06 ,  C08B3/08 ,  C08B3/16 ,  C08J5/18 ,  C08J2301/14 ,  C08K5/0016 ,  C08L1/14

    摘要： The present invention relates to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films made with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have been found to have low intrinsic birefringence. These films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). Such features make these films useful in polarizer, protective, and compensator films as well as molded optical parts, such as lenses. Furthermore, it has also been found that resins of the present invention can also be made to have “+C plate” behavior either by melt or solvent based processing, a characteristic which is not typical of cellulose esters. Such +C behavior allows films to be produced having unique compensatory behavior. Other embodiments of the invention relate to methods melt casting films while minimizing birefringence formation.

    摘要翻译： 本发明涉及用于光学应用的低羟基含量的纤维素酯，例如液晶显示（LCD）膜。 已经发现具有低羟基水平和给定比例的非乙酰酯与羟基水平的膜具有低固有双折射。 这些膜可以铸造，模制或以其他方式定向，而没有明显的双折射或光学变形（即延迟）。 这些特征使得这些膜可用于偏振器，保护膜和补偿膜以及模制的光学部件，例如透镜。 此外，还发现本发明的树脂也可以通过熔融或溶剂基加工制成具有“+ C板”的行为，这是不是典型的纤维素酯的特征。 这种+ C行为允许制作具有独特补偿行为的胶片。 本发明的其它实施方案涉及熔融流延膜的方法，同时最小化双折射形成。

    Cellulose Ester Compositions Having Low Bifringence and Films Made Therefrom
    25.
    发明申请
    Cellulose Ester Compositions Having Low Bifringence and Films Made Therefrom 有权
    具有低分数和薄膜的纤维素酯组合物

    公开(公告)号：US20090054638A1

    公开(公告)日：2009-02-26

    申请号：US12196333

    申请日：2008-08-22

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    IPC分类号： C08B3/16

    CPC分类号： G02B5/3033 ,  C08B3/06 ,  C08B3/08 ,  C08B3/16 ,  C08J5/18 ,  C08J2301/14 ,  C08K5/0016 ,  C08L1/14

    摘要： The present invention relates to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films made with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have been found to have low intrinsic birefringence. Therefore, these films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). Such features make these films useful in polarizer, protective, and compensator films as well as molded optical parts, such as lenses. Furthermore, it has also been found that resins of the present invention can also be made to have “+C plate” behavior either by melt or solvent based processing, a characteristic which is not typical of cellulose esters. Such +C behavior allows films to be produced having unique compensatory behavior. Other embodiments of the invention relate to methods melt casting films while minimizing birefringence formation.

    摘要翻译： 本发明涉及用于光学应用的低羟基含量的纤维素酯，例如液晶显示（LCD）膜。 已经发现具有低羟基水平和给定比例的非乙酰酯与羟基水平的膜具有低固有双折射。 因此，这些膜可以铸造，模制或以其它方式取向，而没有明显的双折射或光学变形（即延迟）。 这些特征使得这些膜可用于偏振器，保护膜和补偿膜以及模制的光学部件，例如透镜。 此外，还发现本发明的树脂也可以通过熔体或溶剂基加工制成具有“+ C板”的行为，这是不是典型的纤维素酯的特征。 这种+ C行为允许制作具有独特补偿行为的胶片。 本发明的其它实施方案涉及熔融流延膜的方法，同时最小化双折射形成。

    Process for removing moisture and volatiles from pellets in single screw extruders
    26.
    发明授权
    Process for removing moisture and volatiles from pellets in single screw extruders 失效
    在单螺杆挤出机中从颗粒中除去水分和挥发物的方法

    公开(公告)号：US6129873A

    公开(公告)日：2000-10-10

    申请号：US287253

    申请日：1999-04-07

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Douglas Stephens McWilliams

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Douglas Stephens McWilliams

    IPC分类号： B29C47/10 ,  B29C47/76 ,  B29C47/74

    CPC分类号： B29C47/767 ,  B29C47/0009 ,  B29C47/1027

    摘要： In a process for extruding a thermoplastic resin in a single screw extruder, a barrel of a single screw extruder has a channel, a feed section and a first melt seal located after the feed section. The process is improved by supplying solid polymer into the feed section and venting moisture extracted from the polymer during the conversion of the polymer from a solid to a melt into a vent area and through a rear vent positioned in the feed section. An unfilled area within the channel of the barrel between the rear vent and the first melt seal forms the vent area.

    摘要翻译： 在用于在单螺杆挤出机中挤出热塑性树脂的方法中，单螺杆挤出机的筒体具有位于进料部分之后的通道，进料部分和第一熔体密封件。 通过在将聚合物从固体转化为熔体进入通气区域并通过位于进料部分中的后部通风口将固体聚合物供入进料部分并排出从聚合物中提取的水分，从而改进该方法。 在后排气口和第一熔融密封之间的桶的通道内的未填充区域形成通气区域。