公开(公告)号：EP0938027A1

公开(公告)日：1999-08-25

申请号：EP99301109.7

申请日：1999-02-16

Applicant: Lucent Technologies Inc.

Inventor： Chandross, Edwin Arthur ,  Kuck, Valerie Jeanne ,  Taylor-Smith, Ralph E.

IPC: G03F7/00

CPC classification number: G03F7/0042 ,  G03F7/001 ,  G03F7/0757

Abstract: An improved photorecording medium suitable for use in holographic storage systems contains a glassy hybrid inorganic-organic, three dimensional matrix, in which is distributed a photoimageable system comprising one or more photoactive, organic monomers. The medium is fabricated by providing a precursor of the hybrid inorganic-organic matrix, mixing the matrix precursor with the photoimageable system, and curing the matrix precursor to form the matrix in situ . The matrix and photoimageable system exhibit independent chemistries, such that the step of matrix formation does not substantially affect the photoimageable system. The hybrid matrix precursor is typically an oligomer derived from a compound represented by R n M(OR') 4-n , where M is a metallic element having a valence of three or higher, such as silicon, titanium, germanium, zirconium, vanadium, or aluminum, R is an alkyl or aryl, R' is a lower alkyl, and n ranges from 1 to 2. The hybrid nature of the matrix material provides several advantages. The inorganic character offers thermal, mechanical, and chemical stability, and also reduces both the bulk viscoelastic creep and the bulk polymerization-induced shrinkage typically exhibited by media utilizing organic polymer matrices. The organic character provides compatibility between the matrix precursor and the organic components (e.g., the photoactive monomer) of the photoimageable system, allowing homogeneous mixing during fabrication of the medium. The organic moieties also offer some flexibility to the matrix, and, it appears, ease diffusion of the photoactive monomer within the matrix during exposure, thereby improving the process of storing data.

Abstract translation: 适用于全息存储系统的改进的光记录介质包含玻璃状混合无机 - 有机三维基质，其中分布有包含一种或多种光活性有机单体的可光成像系统。 通过提供混合无机 - 有机基质的前体，将基质前体与可光成像的系统混合并固化基质前体以原位形成基质来制备介质。 基质和可光成像系统表现出独立的化学物质，使得基质形成步骤基本上不影响光致成像系统。 杂化基质前体通常是衍生自由RnM（OR'）4-n表示的化合物的低聚物，其中M是三价以上的金属元素，例如硅，钛，锗，锆，钒或 铝，R是烷基或芳基，R'是低级烷基，n在1至2的范围内。基质材料的混合性质提供了几个优点。 无机特性提供热，机械和化学稳定性，并且还减少了通常使用有机聚合物基质的介质表现的体粘弹性蠕变和本体聚合诱导的收缩。 有机特征提供了基质前体与可光成像系统的有机组分（例如光活性单体）之间的相容性，允许在制备介质期间均匀混合。 有机部分还为基质提供了一些灵活性，并且看来，在曝光期间光滑活性单体在基质内的扩散，从而改善了存储数据的过程。

公开(公告)号：EP0902067A1

公开(公告)日：1999-03-17

申请号：EP98306989.9

申请日：1998-09-01

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Bautista, Jerry Rodolfo ,  Kuck, Valerie Jeanne ,  Chandross, Edwin Arthur

IPC: C09D183/04 ,  C03C25/02

CPC classification number: C09D183/04 ,  C03C17/30 ,  C03C25/106 ,  C03C25/40 ,  C08G77/04 ,  C08K5/07 ,  C08K5/5317 ,  Y10T428/249953 ,  Y10T428/2962 ,  C08L83/04 ,  C08L83/00 ,  C08L2666/28

Abstract: The invention provides a method for coating an article with a siloxane-based coating composition that results in a coating with high thermal mechanical stability, the method also allowing commercially acceptable speeds to be employed while inhibiting beading of the coating prior to cure. In one embodiment, an article is coated with a composition containing a first methylsilsequioxane oligomer having an initial viscosity of about 2000 cp or less, a second methylsilsequioxane oligomer having an initial viscosity of about 40,000 to about 90,000 cp, a viscosity-lowering additive of a lower aliphatic ketone, and a catalyst. In another embodiment, the invention provides a method for coating an article with a modified methylsilsequioxane coating suitable for higher temperature applications than an all-methyl coating. This embodiment involves coating an article with a composition comprising an oligomer characterized by A:B:C, where A represents the number of methyl pendant groups in the oligomer and is about 13 to about 67, B represents dimethyl pendant groups and is about 0 to about 33, and C represents phenyl pendant groups and is about 10 to about 80, a lower aliphatic ketone viscosity-lowering additive, and a catalyst of a moderately strong protic acid. In a third embodiment, it is possible to attain an even higher temperature coating. The method involves a step of applying a coating containing modified methylsilsequioxane oligomer that was prepared by mixing methyltriethoxysilane monomer with dimethyldiethoxysilane monomer that has already been partially hydrolyzed and oligomerized.

Abstract translation: 本发明提供了制品用基于硅氧烷的涂层组合物的涂层的方法没有导致具有高的热机械稳定性的涂层，所述方法因此允许抑制而对固化前涂层的卷边待使用商业上可接受的速度。 在一个实施方案中，在制品上涂敷包含具有在约2000厘泊或更小的初始粘度的第一methylsilsequioxane低聚物的组合物，其具有在约40,000初始粘度至约90,000厘泊，的粘度降低添加剂的第二methylsilsequioxane低聚物 脂族低级酮，和催化剂。 在另一个实施方式本发明提供了具有适合于较高温度的应用比所有甲基涂料的改性methylsilsequioxane涂层制品的涂层的方法。 这个实施例涉及涂覆到制品用的组合物包含低聚由已表征的：B：C，其中A darstellt低聚物中的甲基侧基的数目，为约13至约67，B darstellt二甲基侧基和为约0至 约33，和C darstellt苯基侧基和为约10至约80，低级脂肪族酮降低粘度的添加剂，和适度强质子酸的催化剂。 在第三实施例，能够达到甚至更高的温度的涂层。 该方法涉及通过没甲基三乙氧基硅烷单体与二甲基二单体混合并已部分水解和低聚制备什么施加涂层含有修饰methylsilsequioxane低聚的步骤。