公开(公告)号：US10711070B1

公开(公告)日：2020-07-14

申请号：US15465945

申请日：2017-03-22

Applicant: U.S. Government as Represented by the Secretary of the Army

Inventor： Subhash Patel ,  Viral Panchal ,  Ming-Wan Young

IPC: C08B15/00 ,  C08B15/06 ,  B01F17/00

Abstract: A wet chemistry method for preparing spherical celluloid beads by mixing a water-based suspension solution and a solvent based celluloid solution that is immiscible in the suspension solution. The two combined solutions create an “oil-in-water” type mixture where the dispersed phase consists of celluloid dissolved in solvent and co-solvent that is suspended in the continuous water phase. Agitation and removal of the solvent and co-solvent mixture produces spherical shaped celluloid beads.

公开(公告)号：US11287229B1

公开(公告)日：2022-03-29

申请号：US16775307

申请日：2020-01-29

Applicant: U.S. Government as Represented by the Secretary of the Army

Inventor： Viral Panchal ,  Chong Peng ,  Dale Conti ,  Ming-Wan Young ,  Tianyi Huang

IPC: B29C44/12 ,  F42B5/188 ,  C08J9/12 ,  F42B5/192 ,  B29C44/34 ,  B29L31/00 ,  B29K1/00

Abstract: The present invention is directed to a process for making combustible foam celluloid munition parts having high aspect ratios, different densities or having an insert embedded into the foam celluloid munition part. The process for making such foam celluloid munition part requires pre-soaking dry particles of celluloid, placing the celluloid particles into a munition part mold, exposing the celluloid particles to high heat and pressure until the celluloid particles expand and fuse into the shape of the mold. Varying the density or the size of the celluloid particles used in the process produces munition parts having different densities. In addition, the placement of inserts into the particles prior to exposure to high heat and pressure produces munition parts having inserts that are useful for identification and tracking of such parts.