公开(公告)号：US20180056635A1

公开(公告)日：2018-03-01

申请号：US15557546

申请日：2016-03-15

Applicant: Sabic Global Technologies B.V.

Inventor： Hendrikus Petrus Cornelis van Heerbeek ,  Matteo Terragni ,  Richard Schouwenaar ,  Amit Kulkarni

IPC: B32B27/18 ,  B32B27/36 ,  C08K5/00 ,  C08K5/101 ,  C08K5/3475 ,  C08K5/524 ,  C09D5/32 ,  C09D7/00

CPC classification number: B32B27/18 ,  B32B27/365 ,  B32B2307/30 ,  B32B2307/412 ,  B32B2605/006 ,  C08K3/04 ,  C08K5/005 ,  C08K5/101 ,  C08K5/3475 ,  C08K5/524 ,  C09D5/32 ,  C09D7/41 ,  G02B5/208 ,  G02B5/223 ,  C08L69/00

Abstract: In an embodiment, an article includes a transparent layer, wherein the transparent layer has a light transmission of greater than or equal to 3%; and a second layer comprising a composition, wherein the composition comprises an infrared transmissive additive, an infrared reflective additive, or a combination comprising one or both of the foregoing and a thermoplastic polymer, and wherein the composition has a light transmission of less than 30%; wherein the transparent layer has a first transparent layer surface and wherein the second layer is located on at least a portion of the first transparent layer surface and at least a portion of the first transparent layer surface is free of the second layer.

公开(公告)号：US11919232B2

公开(公告)日：2024-03-05

申请号：US17058280

申请日：2019-05-10

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Hao Gu ,  Richard Schouwenaar ,  Zahir Bashir ,  Lanti Yang

IPC: B29C64/153 ,  B29C64/223 ,  B29C64/245 ,  B29C64/35 ,  B33Y10/00 ,  B33Y70/10 ,  B29K67/00 ,  B29K105/00

CPC classification number: B29C64/153 ,  B29C64/223 ,  B29C64/245 ,  B29C64/35 ,  B33Y10/00 ,  B33Y70/10 ,  B29K2067/003 ,  B29K2067/006 ,  B29K2067/046 ,  B29K2105/0008 ,  B29K2105/251

Abstract: 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.