Preparation method of fluorescent waterborne polyurethane emulsion based on chromophore in diisocyanate
A technology of diisocyanate and water-based polyurethane, applied in luminescent materials, chemical instruments and methods, organic chemistry, etc., can solve the problems of color variety, fluorescent function, vividness, migration resistance and weather resistance, and insufficient content of fluorescent conjugated groups control, complex reaction and other issues, to achieve the effect of good fluorescence intensity persistence, not easy to migrate, and uniform distribution
Active Publication Date: 2013-06-26
UNIV OF SCI & TECH OF CHINA +1
4 Cites 34 Cited by
AI-Extracted Technical Summary
Problems solved by technology
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreAbstract
The invention discloses a preparation method of a fluorescent waterborne polyurethane emulsion based on chromophore in diisocyanate. The preparation method is characterized by comprising the following steps of: enabling monoamine or monohydric alcohol containing fluorescent chromophore to be reacted with isocyanate, or enabling diamine or dihydric alcohol containing the fluorescent chromophore to be reacted with diisocyanate with a symmetric structure to synthesize diisocyanate containing the fluorescent chromophore, and then combining the diisocyanate containing the fluorescent chromophore with common diisocyanate to partially or completely substitute for the common diisocyanate to prepare the fluorescent waterborne polyurethane. According to the preparation method disclosed by the invention, the hard segment content and type of the prepared fluorescent waterborne polyurethane and the content (2-40wt%) of the fluorescent chromophore are controllable by adjusting the types and proportions of the diisocyanate and a chain extender, and the prepared fluorescent waterborne polyurethane has the advantages that the fluorescent chromophore is uniformly distributed and difficult to migrate, the fluorescent intensity is good in durability, and improvement in terms of optical, thermal and certain functional characteristics can be achieved while the fluorescent property is achieved.
Application Domain
Technology Topic
Image
Examples
- Experimental program(4)
Example Embodiment
Example Embodiment
Example Embodiment
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Similar technology patents
Method for manufacturing doped optical fibre preform by MCVD (modified chemical vapour deposition)
ActiveCN102515501ALow manufacturing costEvenly distributedGlass making apparatusRare-earth elementComposite material
Owner:HANGZHOU FUTONG COMM TECH CO LTD
Crystalline state alloy spherical particle/amorphous alloy base composite material and manufacturing method thereof
InactiveCN101220444AEvenly distributedMinimize the effect of forming abilityAlloy elementAmorphous metal
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Structure and method for uniform current distribution in power supply module
ActiveUS8299588B1Lower lateral resistanceEvenly distributedSemiconductor/solid-state device detailsSolid-state devicesCopper wireEngineering
Owner:TEXAS INSTR INC
Hair drying device
Owner:HADDEN DAVID M
Fuel-Cell Stack And Fuel Cell
ActiveUS20080113243A1Reduce variationEvenly distributedFuel cells groupingFuel cell auxillariesMembrane configurationAirflow
Owner:PANASONIC CORP
Classification and recommendation of technical efficacy words
- Evenly distributed
- Not easy to migrate
Image denoising method based on generative adversarial networks
InactiveCN108765319AEasy to trainEvenly distributedImage enhancementImage analysisGenerative adversarial networkImage denoising
Owner:DALIAN UNIV OF TECH
Drug-eluting stent (DES) with multicoating
Owner:SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
Digital media recognition apparatus and methods
ActiveUS7474759B2Improve uniformityEvenly distributedDigital data information retrievalCharacter and pattern recognitionStatistical criterionDatabase image
Owner:SYTE VISUAL CONCEPTION LTD
Mould for making glass container
ActiveCN101298355AIncrease temperatureEvenly distributedVacuum and blow machinesGlass containerMaterials science
Owner:CHANGSHU WEIHENG MOLD MFG