公开(公告)号：US20220073730A1

公开(公告)日：2022-03-10

申请号：US17417020

申请日：2019-12-19

Applicant: DSM IP Assets B.V.

Inventor： Peter ROOZEMOND ,  Nancy EISENMENGER ,  Tom Antonius Philomena ENGELS

IPC: C08L67/02 ,  C08J9/12 ,  C08J9/18 ,  A43B13/04 ,  A43B13/18

Abstract: The invention relates to a foamed composition comprising a thermoplastic copolyester elastomer, wherein the foamed composition has a relative solution viscosity of at least 4.1 as measured according to ISO 1628-5:2015 and wherein the thermoplastic copolyester elastomer comprises hard segments built up from polyester repeating units derived from at least one aliphatic diol and at least one aromatic dicarboxylic acid or an ester thereof and soft segments being polytetramethylene oxide. The invention also relates to a process for preparing the foamed composition.

公开(公告)号：US20220073728A1

公开(公告)日：2022-03-10

申请号：US17417027

申请日：2019-12-19

Applicant: DSM IP Assets B.V.

Inventor： Peter ROOZEMOND ,  Nancy EISENMENGER ,  Tom Antonius Philomena ENGELS

IPC: C08L67/02 ,  C08G63/183 ,  C08G63/672 ,  C08J9/00 ,  A43B13/04 ,  C08J9/12

Abstract: The invention relates to a foam comprising thermoplastic copolyester elastomer in an amount of at least 60 wt % with respect to the total weight of the foam, wherein the thermoplastic copolyester elastomer has a number average molecular weight (Mn) of at least 34000 g/mol and a shore D hardness measured at 3 s of between 28 to 50. The invention further relates to a process for preparing the foam and articles comprising the foam.

公开(公告)号：US20180355515A1

公开(公告)日：2018-12-13

申请号：US15781789

申请日：2016-12-12

Applicant: DSM IP Assets B.V.

Inventor： Tom Antonius Philomena ENGELS ,  Gert DE CREMER ,  Romain BERTHOUD ,  Roman STEPANYAN ,  Peter ROOZEMOND ,  Filip Stefan Emiel OOSTERLINCK ,  John Richard SEVERN

IPC: D01F6/04 ,  D01F6/46 ,  D01F6/30 ,  D01D5/06 ,  C08F10/02

Abstract: The invention relates to a process for the preparation of a gel spun UHMWPE fiber comprising the steps of providing an ultra high molecular weight polyethylene composition having an intrinsic viscosity (IV) of at least 8 dl/g, a co-monomer content (CBR) of a least 0.05 SCB/1000TC, a mass averaged distribution of the co-monomer (CMAD) of at least 0.05, wherein the co-monomer has at least 4 carbon atoms, dissolving the composition in a solvent to form a polymer solution having a UHMWPE concentration of between 2 and 40 wt %, spinning the polymer solution through a multi orifice die plate to form a solution fibers, cooling the solution fiber to below 80° C. to form a gel fiber, drawing the fiber in at least one step to form a drawn fiber, removing at least a portion of the solvent before, during or after the drawing, wherein the ratio CMAD to CBR is greater than 1.0. The invention further relates to a gel-spun UHMWPE fiber obtainable by the process and products comprising said gel-spun UHMWPE fiber.

公开(公告)号：US20170130446A1

公开(公告)日：2017-05-11

申请号：US15322600

申请日：2015-06-29

Applicant: DSM IP ASSETS B.V.

Inventor： Rigobert BOSMAN ,  Tom Antonius Philomena ENGELS ,  Martin Pieter VLASBLOM ,  Roelof MARISSEN ,  Benjamin B. ACKERS

IPC: E04B1/28 ,  E04B1/19 ,  D01F6/04

CPC classification number: E04B1/28 ,  B63B2021/505 ,  D01F6/04 ,  E04B1/19 ,  E04B2001/1996

Abstract: The present invention relates a structure comprising rigid elements connected together by interconnecting elements in such a way to form a statically determined or statically over-determined structure, wherein said structure comprises at least one tension element comprising polymeric fibers having a stabilizing creep of at least 0.3% and at most 10% and a minimum creep rate lower than 1×10−5% per second, said stabilizing creep and minimum creep being measured at a tension of 900 MPa and a temperature of 30° C. The present invention also relates to said structure being a framing structure, preferably a space frame; a suspended body; a platform, preferably a marine platform; or a wheel comprising spokes. Furthermore, the invention relates to the use of polymeric fibers having a stabilizing creep of at least 0.3% and at most 10% and a minimum creep rate lower than 1×10−5% per second, said stabilizing creep and minimum creep being measured at a tension of 900 MPa and a temperature of 30° C. for a statically determined or statically over-determined structure, preferably for a framing structure, such as a space frame; for a suspended body; for a platform, preferably for a marine platform; or for a wheel comprising spokes.