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公开(公告)号:US20190264002A1
公开(公告)日:2019-08-29
申请号:US16320228
申请日:2017-07-24
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor: Liang WEN , Benoit LECOUVET , Chaodong JIANG , Azzedine KIOUL , Saad ALHUSSAIN , Faisal AL SUHAIBANI , Jun ZHOU
IPC: C08K5/3462 , C08K5/523 , C08K3/32 , C08K5/3492 , C08L23/12 , C08K13/02 , C09K21/12 , C09K21/04
Abstract: The invention relates to a flame retardant polypropylene composition comprising (A) a polypropylene-based polymer, (B) a first flame retardant in an amount of 15 to 40 wt % of the total composition, wherein the first flame retardant is in the form of particles comprising ammonium polyphosphate and at least one phosphate selected from the group consisting of melamine phosphate, melamine polyphosphate, melamine pyrophosphate, piperazine phosphate, piperazine polyphosphate, piperazine pyrophosphate, 2-methylpiperazine monophosphate, tricresyl phosphate, alkyl phosphates, haloalkyl phosphates, tetraphenyl pyrophosphate, poly(2-hydroxy propylene spirocyclic pentaerythritol bisphosphate) and poly(2,2-dimethylpropylene spirocyclic pentaerythritol bisphosphonate) and (C) a second flame retardant in an amount of 0.1 to 15 wt % of the total composition, wherein the second flame retardant comprises an aromatic phosphate ester.
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公开(公告)号:US20210179311A1
公开(公告)日:2021-06-17
申请号:US17269371
申请日:2018-08-27
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor: Zahir BASHEER , Rajiva JOSHI , Azzedine KIOUL , Fayez Abdullah ALFAYEZ , Abdul Rahim Ahamed ARAFATH
Abstract: The present invention provides a multi-cup arrangement comprising a polypropylene sheet, wherein the polypropylene sheet comprises at least two cavities, the cavities each protruding from the sheet from a bottom surface of the sheet, wherein the cavities are separated from each other via one or more spacer area(s) on the sheet, wherein the spacer area(s) each comprise one or more groove(s) on the bottom surface of the sheet that are positioned to allow the sheet to be broken along the groove by bending the sheet towards the top surface, wherein the grooves are positioned to divide the sheet into multiple segments, each segment comprising one or more cavities, wherein each of the groove(s) has a maximum depth of ≥25% and ≤80% with regard to the thickness of the polypropylene sheet. Such multi-cup arrangement may be separated into individual cup segments by moderate manual force, whilst the arrangement does not undesirably bend nor snap under the action of its own weight.
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