Sabic Global Technologies B.v.

Lanti Yang

Robbert Duchateau

Miloud Bouyahyi

Lidia Jasinska-walc

Lidia Jasinska-Walc

Hao Gu

Johannes Peter Antonius Martens

Peter Degenhart

Jakub Kruszynski

Richard Schouwenaar

Jana Hrachová

Nydia Badillo Sampedro

Bartosz Prokopowicz

Zahir Bashir

Artur Rozanski

Thomas Defize

Katrien Veerle Bernaerts

Yingxin Liu

Troisi Enrico

Zahir Basheer

The invention relates to a polyacrylate-based graft copolymer comprising a polyacrylate backbone and polyolefin side chains grafted thereon, wherein the graft copolymer is prepared by reacting a first polymer and a second polymer, wherein the first polymer comprises recurring units having the structure (I) and optionally further recurring units having the structures (II): Formulae (I), (II) wherein R, Ris H or CHand Ris a hydrocarbon moiety comprising 1 to 6 carbon atoms, one of Rand Ris H and the other one of Rand Ris COOR, C≡N, Cl, or an aliphatic or aromatic hydrocarbon moiety optionally containing one or multiple hetero atom functionalities, wherein Rin (I) is different from Rin (II) and the second polymer is a functionalized polyolefin having one or multiple hydroxyl functional groups, wherein the graft copolymer is formed by transesterification of the COORgroup of (I) or (II) with the hydroxyl functional group of the functionalized polyolefin.

Polyacrylate-based graft copolymer

Hot melt adhesive including a polar group-containing olefin copolymer has: number average molecular weight (M) between 10 to 50 kg/mol, crystallinity (X) content below 30%, enthalpy (ΔH) between 5 to 65 J/g, polydispersity index (PDI) from 2 to 6, melting temperature (T) between 40 and 120° C., and including at least 80 mol % of a constituent unit of formula (1), optionally a constituent unit of formula (2), and between 0.1 to 1 mol %, of a constituent unit of formula (3):

Hot melt adhesive comprising functionalized polyolefins

The invention relates to a film Film comprising a random graft copolymer having a polypropylene (PP) backbone and from 3 to 8 polyester segments covalently bonded to said backbone, wherein the number average molecular weight (Mn) of the polypropylene backbone ranges between 10.000 and 100.000 Dalton (as determined with HT-SEC in o-DCB at 150° C.), wherein the Mn of each polyester segment ranges between 5.000 and 25.000 Daltons, wherein the amount of PP ranges between 45 and 80 mol %, wherein the amount of polyester segments ranges between 55 and 20 mol %, wherein the film has a thickness in the range of 0.01-10 mm, wherein the polypropylene and polyester domains form independently continuous phases, and wherein the mol % is calculated relative to the total moles of monomer units present in the copolymer. The invention further relates to a nano porous PP membrane and its use.

Polypropylene backbone, and nanoporous polypropylene membrane

The present invention relates to a process for moulding a polymeric object, the process comprising the steps of: (a) providing a substantially flat horizontally positioned layer of a material, the layer being a film or sheet; (b) providing a layer of a thermoplastic powder onto the layer provided under (a); (c) subjecting a pre-defined part of the thermoplastic powder to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of material; (d) terminating the exposure to irradiation; (e) providing a further layer of the thermoplastic powder onto the layer provided under (b); (f) subjecting a pre-defined part of the thermoplastic powder of the layer provided under (e) to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of the material fused under (c); (g) terminating the exposure to irradiation; (h) repeating steps (e)-(g) for as many cycles as required to complete the shape of the desired polymeric object; (i) removing the fraction of thermoplastic powder that has not been fused or sintered; and (j) optionally removing the substantially flat layer as provided under (a) from the polymeric object; wherein the surface area of the substantially flat layer of material is at least 200% of the surface area of that layer produced under steps (c)-(h) having the largest surface area. Such process allows for the production of small series or uniquely designed objects at low energy consumption wherein the objects exhibit high dimensional stability.

Process for shaping a polymeric object

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Geleen, Netherlands

Lanti Yang