Bizarre Patents
A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
US Patent 5278115 - Method for preparing a pillared layered oxide material
US Patent Issued on January 11, 1994
Estimated Patent Expiration Date:
May 4, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
May 4, 2012Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractThere is provided a method for preparing a pillared layered material, designated MCM-36, with a characteristic X-ray diffraction pattern. Upon calcination of the swollen, non-pillared form of this material, the layers collapse and condense upon one another in a somewhat disordered fashion to form a non-swellable material. However, when the swollen layered material is intercalated with polymeric oxide pillars, the layer separation is maintained, even after calcination. A combination of tetraethylorthosilicate and zirconium alkoxide is used as a pillaring agent for treating the swollen material. | InventorsAssigneeApplicationNo. 887811 filed on 05/04/1992US Classes:502/84, And metal, metal oxide, or metal hydroxide423/328.2, Crystalline423/329.1, X-ray diffraction pattern502/242Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb)Field of Search423/328.2, Crystalline423/329.1, X-ray diffraction pattern502/80, Clay502/84, And metal, metal oxide, or metal hydroxide502/242Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb)ExaminersPrimary: Breneman, R. BruceAttorney, Agent or FirmUS Patent References4439409, Crystalline aluminosilicate PSH-3 and its process of preparationIssued on: 03/27/1984 Inventor: Puppe , et al.4859648, Layered metal chalcogenides containing interspathic polymeric chalcogenides Issued on: 08/22/1989 Inventor: Landis , et al.4954325Composition of synthetic porous crystalline material, its synthesis and use Issued on: 09/04/1990 Inventor: Rubin, et al. International ClassB01J 021/06 |
