公开(公告)号：US20130026428A1

公开(公告)日：2013-01-31

申请号：US13621957

申请日：2012-09-18

Applicant: BASF SE

Inventor： Marc Maurer ,  Max Hügin ,  Thomas Raimann ,  Leonhard Feiler ,  Bruno Inderbitzin ,  Andre Fuchs

IPC: G02B5/23

CPC classification number: C09K9/02 ,  C07D491/107 ,  C09B57/00 ,  C09D11/037 ,  C09D11/50 ,  C09K2211/1029 ,  C09K2211/1088 ,  Y10T436/141111

Abstract: The present invention relates to a photochromic ink, the process for its preparation which is based on a spiropyran powder obtainable by melting, cooling and crushing, and to a new form of a spiropyran obtainable thereby.Said process to prepare a photochromic ink comprises the steps of a) heating and melting the spiropyran at a temperature below 250° C., b) cooling the melt to obtain a solidified spiropyran, c) crushing the solidified spiropyran to obtain a powder, d) optionally adding the powder to a binder providing the basis for the photochromic ink.

Abstract translation: 本发明涉及一种光致变色油墨，其制备方法是基于通过熔融，冷却和粉碎获得的螺吡喃粉末，以及由此获得的新形式的螺吡喃。 所述制备光致变色油墨的方法包括以下步骤：a）在低于250℃的温度下加热和熔化螺吡喃，b）冷却熔体以获得固化的吡咯啉，c）将固化的吡咯烷粉碎以获得粉末，d ）任选地将粉末添加到粘合剂中，为光致变色墨水提供基础。

公开(公告)号：US12060657B2

公开(公告)日：2024-08-13

申请号：US16978790

申请日：2019-02-25

Applicant: BASF SE

Inventor： Jordan Thomas Kopping ,  Bruno Inderbitzin ,  Claus Gabriel

IPC: B33Y10/00 ,  B29C64/118 ,  B33Y70/10 ,  B33Y80/00 ,  D01F1/10 ,  D01F8/12 ,  D01F8/18 ,  B29K77/00 ,  B29K101/12 ,  B29K105/16

CPC classification number: D01F1/10 ,  B29C64/118 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00 ,  D01F8/12 ,  D01F8/18 ,  B29K2077/00 ,  B29K2101/12 ,  B29K2105/16

Abstract: The invention relates to a filament comprising a core material (CM) comprising a fibrous filler (FF) and a thermoplastic polymer (TP1), and the core material (CM) is coated with a layer of shell material (SM) comprising a thermoplastic polymer (TP2). Further, the invention relates to a process for the preparation of said filament, as well as to three-dimensional objects and a process for the preparation thereof.