公开(公告)号：US6132657A

公开(公告)日：2000-10-17

申请号：US106488

申请日：1998-06-29

Applicant: Yachin Cohen ,  Dmitry M. Rein ,  Lev Vaykhansky

Inventor： Yachin Cohen ,  Dmitry M. Rein ,  Lev Vaykhansky

IPC: B29C43/02 ,  B29B13/00 ,  B29C43/00 ,  B29C43/32 ,  B29C43/52 ,  B29C43/56 ,  B29C43/58 ,  H05K3/00 ,  H05K3/02 ,  B29C70/34 ,  B29C70/42

CPC classification number: B29B13/007 ,  B29C43/006 ,  B29C43/52 ,  B29C43/56 ,  B29C2791/006 ,  B29K2023/06 ,  B29K2023/0683 ,  B29K2105/25 ,  B29K2105/251 ,  B29K2105/256 ,  B29K2223/06 ,  B29K2223/0683 ,  H05K3/0014 ,  H05K3/022

Abstract: An improved process for producing a consolidated polymeric monolith from an assembly of thermoplastic polymer fibers. The assembly is placed under pressure to fill a majority of the voids thereof by mechanical deformation of the fibers, and heated to a temperature too low to melt the fibers at the deformation pressure but sufficiently high to at least partly melt the fibers at a lower transition pressure. While maintaining the assembly at this temperature, the pressure is reduced to the transition pressure long enough for partial melting of the fibers to fill the rest of the voids, and then is increased to a consolidation pressure at least as high as the deformation pressure. The assembly is cooled slowly to ambient temperature at the consolidation pressure.

Abstract translation: 一种用于从热塑性聚合物纤维的组件生产固结的聚合物整料的改进方法。 将组件放置在压力下以通过纤维的机械变形填充其大部分空隙，并加热到太低的温度，不能在变形压力下熔化纤维，但足够高以至少部分地将纤维熔化在较低的转变 压力。 在将组件保持在该温度的同时，将压力降低到足够长的过渡压力以使纤维部分熔化以填充其余的空隙，然后增加至至少与变形压力一样高的固结压力。 将组件在固结压力下缓慢冷却至环境温度。

公开(公告)号：US20110180751A1

公开(公告)日：2011-07-28

申请号：US13013468

申请日：2011-01-25

Applicant: Dmitry M. Rein ,  Yachin COHEN

Inventor： Dmitry M. Rein ,  Yachin COHEN

IPC: C09K3/00 ,  C07H1/00 ,  C08B1/00 ,  C07H15/04 ,  B29C39/00 ,  B29C43/00

CPC classification number: C08B1/003 ,  C08B15/05 ,  C08J3/075 ,  C08J9/0009 ,  C08J9/28 ,  C08J2201/0544 ,  C08J2301/02 ,  C08L1/02 ,  C09K5/063

Abstract: This invention is directed to polysaccharide based aerogels, related to herein as aeropolysaccharides (aerocellulose) and reinforced aeropolysaccharides, and preparation thereof by an environmentally friendly process.

Abstract translation: 本发明涉及多糖类气凝胶，其与本文中涉及的多糖（航空纤维素）和增强的多孔多糖，以及通过环境友好的方法制备。

公开(公告)号：US06482343B1

公开(公告)日：2002-11-19

申请号：US09424643

申请日：1999-11-26

Applicant: Yachin Cohen ,  Dmitry M. Rein ,  Lev Vaykhansky

Inventor： Yachin Cohen ,  Dmitry M. Rein ,  Lev Vaykhansky

IPC: B29C4314

CPC classification number: B29C43/006 ,  B29C43/52 ,  B29C43/56 ,  B29C2043/5816 ,  B29K2023/06 ,  B29K2105/06 ,  B29K2995/0003 ,  B29K2995/0006 ,  B29K2995/0027

Abstract: An improved process for producing a consolidated polymeric monolith from an assembly of thermoplastic polymer. The assembly is placed under pressure to fill a majority of the voids thereof by mechanical deformation of the fibers, and heated to a temperature too low to melt the fibers at the deformation pressure but sufficiently high to at least partly melt the fibers at a lower transition pressure. While maintaining the assembly at this temperature, the pressure is reduced to the transition pressure long enough for partial melting of the fibers to fill the rest of the voids, and then is increased to a consolidation pressure at least as high as the deformation pressure. The assembly is cooled slowly to ambient temperature at the consolidation pressure. The process allows accurate control of thermal expansion coefficients of the product. Further, products of manufacture produced by the process exhibit improved strength, thermal stability, infrared transparency and unique intrinsic physical characteristics.

Abstract translation: 一种用于从热塑性聚合物的组合产生固结的聚合物整料的改进方法。 将组件放置在压力下以通过纤维的机械变形填充其大部分空隙，并加热到太低的温度，不能在变形压力下熔化纤维，但足够高以至少部分地将纤维熔化在较低的转变 压力。 在将组件保持在该温度的同时，将压力降低到足够长的过渡压力以使纤维部分熔化以填充其余的空隙，然后增加至至少与变形压力一样高的固结压力。 将组件在固结压力下缓慢冷却至环境温度。 该方法允许精确控制产品的热膨胀系数。 此外，通过该方法生产的制品产品具有改进的强度，热稳定性，红外透明度和独特的固有物理特性。