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：US12122919B2

公开(公告)日：2024-10-22

申请号：US17427403

申请日：2020-01-17

Applicant: BASF SE

Inventor： Leonhard Feiler ,  Thomas Ruch ,  Frank Bachmann ,  Marie-Pascale Perritaz ,  Gerardus De Keyzer

IPC: C09B31/053 ,  C09B31/043 ,  C09B31/26 ,  C09B31/30 ,  C09K19/60

CPC classification number: C09B31/053 ,  C09B31/043 ,  C09B31/26 ,  C09B31/30 ,  C09K19/601

Abstract: Azo-azomethine dyes, a dichroic dye mixture including azo-azomethine dyes, a liquid crystal composition with the azo-azomethine dyes, and methods for producing the dyes and dye compositions. The dyes can be used in liquid crystal systems, transmissive displays, and smart windows.

公开(公告)号：US08962140B2

公开(公告)日：2015-02-24

申请号：US13705389

申请日：2012-12-05

Applicant: BASF SE

Inventor： Martin Müller ,  Didier Bauer ,  Thomas Ruch ,  Leonhard Feiler ,  Wolfgang Schlenker ,  Christian Cremer

IPC: B32B5/16 ,  B05D7/00 ,  C08K5/5455 ,  C07F7/18 ,  B82Y30/00

CPC classification number: C08K5/5455 ,  B82Y30/00 ,  C07B2200/11 ,  C07F7/1804 ,  C09B69/008 ,  Y10S977/773 ,  Y10T428/2991 ,  Y10T428/2998 ,  Y10T428/31663

Abstract: Functionalized nanoparticles, which are obtainable by combining in a first step a functionalized dyestuff, a silicon-based spacer and a catalyst, and in a second step reacting the product obtained in the first step with a co-reactive organic silicon, aluminum, zirconium or titanium compound. Optionally, the thus obtained functionalized nanoparticles can be combined or encapsulated with a polymer. The functionalized nanoparticles are useful as colorants and fluorescents in plastics, paints, inks, electronic materials, cosmetic articles, and the like.

Abstract translation: 官能化纳米颗粒，其可通过在第一步骤中结合官能化染料，硅基间隔物和催化剂获得，并且在第二步骤中使得第一步骤中获得的产物与共反应性有机硅，铝，锆或 钛化合物。 任选地，如此获得的官能化纳米颗粒可以与聚合物组合或包封。 官能化纳米粒子可用作塑料，油漆，油墨，电子材料，化妆品等中的着色剂和荧光剂。