公开(公告)号：US10131782B2

公开(公告)日：2018-11-20

申请号：US15505421

申请日：2015-09-03

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Sangita Nandi ,  Susanta Mitra ,  Jelena Bozovic-Vukic ,  Abdulsattar Dawood

IPC: C08K7/14 ,  C08K3/40 ,  C08L59/02 ,  C08L59/04 ,  C08L33/12 ,  C08K5/00 ,  C08L33/00 ,  C08L51/04

Abstract: Reinforced polyoxymethylene compositions including 50 to 90 wt. % of a polyoxymethylene; 10 to 50 wt. % of glass fibers, wherein the weight of the polyoxymethylene and the glass fibers total 100 wt. %; 1 to less than 4.0 wt. % of a (meth)acrylic polymer additive, based on the total weight of the polyoxymethylene and the glass fibers; 0.1 to 5 wt. %, preferably 0.1 to 2.5 wt. % of a heat stabilizer; and 0.1 to 5 wt. % of an antioxidant, wherein the amounts of the (meth)acrylic polymer additive, the heat stabilizer, and the antioxidant are based on the total weight of the polyoxymethylene and the glass fibers.

公开(公告)号：US11192966B2

公开(公告)日：2021-12-07

申请号：US16462370

申请日：2017-11-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Roopali Rai ,  Stephen D. Pask ,  Susanta Mitra ,  Abdulsattar Dawood

IPC: C08F120/44 ,  D01F6/18 ,  C08F220/44

Abstract: The present invention relates to a process for the production of polyacrylonitrile by polymerisation of a reaction mixture comprising acrylonitrile in a solution where the solvent is a eutectic system comprising a quaternary ammonium compound and a hydrogen donor. Such process allows for the production of a polyacrylonitrile having a desirably high molecular weight, whilst polymerisation time is reduced, and where the solvents are environmentally benign, biodegradable and may be reused in the polymerisation process.

公开(公告)号：US20190276569A1

公开(公告)日：2019-09-12

申请号：US16462370

申请日：2017-11-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Roopali Rai ,  Stephen D. Pask ,  Susanta Mitra ,  Abdulsattar Dawood

IPC: C08F120/44 ,  D01F6/18

Abstract: The present invention relates to a process for the production of polyacrylonitrile by polymerisation of a reaction mixture comprising acrylonitrile in a solution where the solvent is a eutectic system comprising a quaternary ammonium compound and a hydrogen donor. Such process allows for the production of a polyacrylonitrile having a desirably high molecular weight, whilst polymerisation time is reduced, and where the solvents are environmentally benign, biodegradable and may be reused in the polymerisation process.