公开(公告)号：US20210388136A1

公开(公告)日：2021-12-16

申请号：US17284828

申请日：2019-10-15

Applicant: Arkema France

Inventor： Pierre ESCALE ,  Pierre GERARD ,  Dana SWAN ,  Robert BARSOTTI ,  Nathan BACHMAN ,  Jing-Han WANG

IPC: C08F220/14 ,  C08J5/24 ,  B29B15/12

Abstract: The present invention relates to a (meth)acrylic composition suitable for (meth)acrylic polymeric compositions and (meth)acrylic polymeric composites, its method of preparation and its use. In particular the present invention relates to a (meth)acrylic composition that is slightly crosslinked once polymerized and that is suitable for (meth)acrylic composites and more particular for rebars. More particularly the present invention relates to a (meth)acrylic composition suitable for rebars, preparing such a (meth)acrylic compositions, composite rebar comprising is and method of preparing such a composite rebar. The present invention also relates also to the use of such a (meth)acrylic composition and use of rebars.

公开(公告)号：US20220193983A1

公开(公告)日：2022-06-23

申请号：US17599709

申请日：2020-03-27

Applicant: Arkema France

Inventor： David Shen-Ren LIU ,  Mary K. CALVIN ,  Robert J. BARSOTTI ,  Jing-Han WANG

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/245 ,  B29C64/314 ,  C08L33/08 ,  B33Y70/00 ,  B33Y10/00 ,  C08F220/18

Abstract: The invention relates to an acrylic copolymer composition useful for 3-D printing, that can be formed into a uniform filament and 3-D printed using material extrusion additive manufacturing, into an article having low warpage, low shrinkage, good internal optical properties, and good mechanical properties. The acrylic copolymer has a low Tg, providing the proper stiffness for good 3-D printing. The invention also relates to the printing and processing of the acrylic composition where internally transparent 3-D printed thermoplastic parts can be produced at a reasonable rate (>0.05 mm per layer) with good/great layer adhesion, and near isotropic properties.