公开(公告)号：US20200325323A1

公开(公告)日：2020-10-15

申请号：US16305123

申请日：2017-05-31

Applicant: David Shin-Ren LIU ,  Jack J. REILLY ,  Mark A. AUBART ,  ARKEMA INC.

Inventor： David Shin-Ren Liu ,  Jack J. REILLY ,  Mark A. AUBART

IPC: C08L33/08 ,  C08L67/04 ,  C08L1/12 ,  B29C64/118 ,  B29C64/321

Abstract: The invention relates to an acrylic alloy composition that can be 3-D printed by a material extrusion additive manufacturing process, to an acrylic filament that has a very uniform diameter useful in the extrusion additive manufacturing process, to acrylic articles made from the acrylic alloy composition by a material extrusion additive process, and to a material extrusion additive manufacturing process for producing the acrylic articles. The acrylic alloy composition is an alloy of an acrylic polymer, and a low melt viscosity polymer, such as polylactic acid. The alloy may optionally be impact modified, preferably with hard core core-shell impact modifiers.

公开(公告)号：US10539290B2

公开(公告)日：2020-01-21

申请号：US14431466

申请日：2013-09-27

Applicant: Michael T. Burchill ,  Steven W. Gaskey ,  Robert A. Wanat ,  Jiaxin Ge ,  Mark A. Aubart ,  Arkema France

Inventor： Michael T. Burchill ,  Steven W. Gaskey ,  Robert A. Wanat ,  Jiaxin Ge ,  Mark A. Aubart

IPC: F21V3/06 ,  G02B5/02 ,  G01N21/59 ,  F21V3/04 ,  F21Y115/10

Abstract: The invention relates to optical light diffusers for use with point light sources, such as LED lighting. The optical diffusers achieve an optimum balance of light transmission and hiding power. The optical light diffuser is a transparent plastic matrix, such as Plexiglas® resin from Arkema Inc., having organic particles dispersed within the matrix. The particles are crosslinked beads having specific particle sizes and loading. Different beads can be combined to provide added properties such as a textured surface, and to optimize hiding power and light transmission. The invention also relates to a luminous device containing at least one light-emitting diode and a cover made of the optical light diffuser. The invention further relates to a method for assessing hiding power.

公开(公告)号：US10518508B2

公开(公告)日：2019-12-31

申请号：US14416849

申请日：2013-07-26

Applicant: Florence Mehlmann ,  Robert J. Barsotti ,  Charles C. Crabb ,  Thomas H. Richards ,  Steven B. Lacock ,  Mark A. Aubart ,  Adam N. Toft ,  Arkema France

Inventor： Florence Mehlmann ,  Robert J. Barsotti ,  Charles C. Crabb ,  Thomas H. Richards ,  Steven B. Lacock ,  Mark A. Aubart ,  Adam N. Toft

IPC: B32B27/08 ,  B32B27/20 ,  B32B7/02 ,  C08L33/12 ,  B32B27/36 ,  B32B27/30 ,  B32B27/06 ,  B32B5/18

Abstract: The invention relates to a multi-layer structure having at least one inner layer containing an alloy of a biopolymer and an acrylic polymer and at least one outer layer containing a thermoplastic or thermoset polar polymer matrix. The combination of outer polar layer and an inner biopolymer/acrylic layer provides improved properties, such as improved adhesion, and improved mechanical properties. The multi-layer structure may be in the form of a sheet, a film, a tube or pipe, or a profile, and could be used by itself or as a cap-layer over a substrate.