The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Apr. 10, 2007
Kai Su, Midland, MI (US);
Duane R. Bujalski, Auburn, MI (US);
Peter Y. Lo, Midland, MI (US);
Eric Kolb, Acton, MA (US);
Kai Su, Midland, MI (US);
Duane R. Bujalski, Auburn, MI (US);
Peter Y. Lo, Midland, MI (US);
Eric Kolb, Acton, MA (US);
Dow Corning Corporation, Midland, MI (US);
DCE Aprilis, Inc., Maynard, MI (US);
Abstract
A composition includes a siloxane of the formula:(RMeSiO)(MeRSiO)(RSiO)(SiO)wherein a is at least 2, b is from 3 to 20, c is from 0 to 10, d is from 0 to 10, and each R is independently of the formula —CR'—CR′—Y—Z or CR′—CR′—Z, wherein each R′ is independently a hydrogen atom or a Cto Chydrocarbyl free of aliphatic unsaturation so long as at least one R′ is a hydrogen atom, Y is a divalent organic group, and Z is a polycyclic group containing at least one aromatic ring. A method of making the siloxane includes charging (HMeSiO)(MeHSiO)(HSiO)(SiO), a platinum catalyst, and an alkene of the formula CR′═CR′—Y—Z or CR′═CR′—Z into a reactor to form the siloxane. The siloxane is useful as a component in holographic storage media for photopolymer-based holographic data storage applications. The siloxane exhibits excellent compatibility when mixed with a polymerizable component before the polymerizable component is cured. Furthermore, the siloxane exhibits excellent diffusion from polymers of the polymerizable component after partial and complete curing. The siloxane also has a high refractive index while maintaining the excellent compatibility and diffusion properties when mixed with polymerizable component.