公开(公告)号：US20170312971A1

公开(公告)日：2017-11-02

申请号：US15531032

申请日：2015-11-24

Applicant: SABIC Global Technologies B.V.

Inventor： Jelle Terpsma ,  Zahir Bashir ,  Rajiva Joshi

IPC: B29C47/92 ,  B29C47/00 ,  B29B7/00 ,  B29C47/08 ,  B29D7/01 ,  B29L7/00 ,  B29K67/00

CPC classification number: B29C48/92 ,  B29B7/00 ,  B29C48/0022 ,  B29C48/022 ,  B29C48/08 ,  B29C48/277 ,  B29C2948/922 ,  B29C2948/92333 ,  B29D7/01 ,  B29K2067/00 ,  B29L2007/007 ,  Y02P70/263

Abstract: The present invention relates to an integrated process for the production of polyester tape, comprising the steps of a) preparing feed polyester comprising a polymerisation reaction in one or more reactors in series and measuring the viscosity of the obtained feed polyester, b) feeding the feed polyester obtained from step a) and optional additives to a melt mixing device, mixing said feed polyester and said optional additives so as to form a molten polyester composition and measuring the viscosity of the obtained polyester composition, c) extruding the molten polyester composition through a film extrusion die thereby forming a molten film of said polyester composition, d) preparing a polyester tape from said molten polyester film, said preparing comprising trimming the edges of the film at a stage where said film is below its melting temperature, e) feeding at least a part of the trimmed edges obtained in step d) in-line to the melt mixing device in step b) wherein the amount of trimmed edges and optional further additives fed to the melt mixing device in step b) is controlled on the basis of the measured viscosity of the polyester composition.

公开(公告)号：US20180148571A1

公开(公告)日：2018-05-31

申请号：US15576341

申请日：2016-05-18

Applicant: SABIC Global Technologies B.V.

Inventor： Robbert Duchateau ,  Jelle Terpsma ,  Henrica Norberta Alberta Maria Steenbakkers-Menting ,  Lidia Jasinska-Walc ,  Miloud Bouyahyi

IPC: C08L23/12 ,  C08L23/06

CPC classification number: C08L23/12 ,  C08L23/06 ,  C08L2203/18 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2205/08 ,  C08L2207/02 ,  C08L23/16 ,  C08L67/00 ,  C08L53/00

Abstract: The present invention relates to a composition comprising: a heterophasic polypropylene containing i) a matrix phase of a propylene homopolymer and/or a propylene copolymer with up to 3 wt. % of ethylene and/or at least one C4-C8 α-olefin, the wt. % based on the weight of the copolymer and ii) a disperse phase of an ethylene-C3-C8 α-olefin copolymer, wherein the ethylene content is at least 40 wt. % based on the weight of the ethylene-C3-C8 α-olefin copolymer, one or more of a compatibiliser, wherein the compatibiliser is i) a non-aromatic polyester having an average M/E ratio of at least 10 and/or ii) a block copolymer comprising a polypropylene block and a polyester block, said polyester being a non-aromatic polyester and having an average M/E ratio of at least 10, wherein M is the number of backbone carbon atoms in the polyester, not including the carbonyl carbons and E is the number of ester groups in the polyester.

公开(公告)号：US10550254B2

公开(公告)日：2020-02-04

申请号：US15576341

申请日：2016-05-18

Applicant: SABIC Global Technologies B.V.

Inventor： Robbert Duchateau ,  Jelle Terpsma ,  Henrica Norberta Alberta Maria Steenbakkers-Menting ,  Lidia Jasinska-Walc ,  Miloud Bouyahyi

IPC: C08L23/12 ,  C08L23/06

Abstract: The present invention relates to a composition comprising: a heterophasic polypropylene containing i) a matrix phase of a propylene homopolymer and/or a propylene copolymer with up to 3 wt. % of ethylene and/or at least one C4-C8 α-olefin, the wt. % based on the weight of the copolymer and ii) a disperse phase of an ethylene-C3-C8 α-olefin copolymer, wherein the ethylene content is at least 40 wt. % based on the weight of the ethylene-C3-C8 α-olefin copolymer, one or more of a compatibilizer, wherein the compatibilizer is i) a non-aromatic polyester having an average M/E ratio of at least 10 and/or ii) a block copolymer comprising a polypropylene block and a polyester block, said polyester being a non-aromatic polyester and having an average M/E ratio of at least 10, wherein M is the number of backbone carbon atoms in the polyester, not including the carbonyl carbons and E is the number of ester groups in the polyester.