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Polymer composition or prepolymer composition or embossing paint comprising such composition and use thereof

A technology of prepolymers and compositions, which can be applied to the photolithographic process of patterned surfaces, photosensitive materials for optomechanical equipment, instruments, etc., and can solve problems such as slow hardening process, easy deformation, and low reliability of embossing

Active Publication Date: 2021-06-01
约阿内研究有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, polymer embossing stamps are significantly cheaper to produce, but have the disadvantage that they are usually relatively deformable and can therefore be used only very limitedly as embossing stamps in the sub-micron range
A further disadvantage of polymeric materials crosslinked in the free radical chain reaction in the embossing process is that suitable materials are usually only fully crosslinked with the exclusion of oxygen, which appears to be a problem in the rolling process. problematic because it cannot fully harden sufficiently quickly enough for use in roll embossing, so its embossing reliability ( ) is relatively low, and in addition it suffers from a slow hardening process due to the generally high weight proportion of the urethane acrylate oligomers contained, so it seems impossible to achieve the stamping (Stempel) in the rolling method defect-free self-replication
But for R2R embossing, it is especially therefore necessary to completely convert the reactive C-C double bonds in the polymeric impression material before R2R embossing, since otherwise it is incompatible with the embossing varnish ( ) in the C-C double bond reaction, which inevitably leads to impression and lacquer adhesion

Method used

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  • Polymer composition or prepolymer composition or embossing paint comprising such composition and use thereof
  • Polymer composition or prepolymer composition or embossing paint comprising such composition and use thereof
  • Polymer composition or prepolymer composition or embossing paint comprising such composition and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 The effect of addition of polyfunctional monomeric building blocks with at least two thiol groups on polymerization kinetics is shown.

[0032] Specifically, varying amounts of trithiol (trimethylolpropane tris(3-mercaptopropionate)) were each added to a prepolymer matrix containing 4.5% of a tetrafunctional urethane acrylate oligo Polymer (UAO), 0.5% anti-adhesive additive polydimethylsiloxane, 3% or 5% photoinitiator namely 2-hydroxyl-2-methyl-1-phenyl-propane-1-one and reaction Sexual diluent TMP(EO) 3 T.A. As the ratio of trithiol increases, the reactive diluent TMP(EO) 3 The content of TA decreased to the same extent. Depend on figure 1 It can be clearly seen that the reaction kinetics are significantly accelerated for higher trithiol proportions. In addition, by figure 1 It can be seen that the higher the trithiol content, the higher the converted double bond content. Finally by figure 1 It can be seen that at a trithiol content of 30% complete...

Embodiment 2

[0035] By examining the effect of the chain length of oligomer building blocks having at least one polymerizable double bond on viscosity, the effect of the concentration of monomer building blocks having at least two thiol groups on viscosity, and the effect of reactive diluents on viscosity , according to the change of viscosity test by urethane acrylate oligomer, reactive diluent, photoinitiator, have at least two polyfunctional monomer structural units of thiol groups, especially trithiol and photoinitiator composed of prepolymer mixtures. Depend on image 3 It can be seen that the dynamic viscosity increases depending on the chain length of the oligomer structural unit having at least two polymerizable double bonds. It can be seen from this experiment that the higher the proportion of oligomer structural units, the higher the viscosity of the prepolymer system. Since it is advantageous for the roll-to-roll process if the dynamic viscosity of the prepolymer composition i...

Embodiment 3

[0037] Example 3 It is shown that by using a Waldmann UV source at 5mW / cm 2 Under pre-hardening for 1 minute and at 2.2W / cm 2 After irradiation, ie crosslinking, at 1 min of final hardening, the mechanical strength, ie reduced Young's modulus E*, of the tetrafunctional UAO at 600 g / mol varies depending on the composition.

[0038] Depend on Figure 4 It can be seen that in TMP(EO) by (96.5–x)% 3 TA, where x is an oligomer building block with at least one polymerizable double bond and / or TMP(EO) 9 Amount of TA or trithiol, and 3% of 2-hydroxy-2-methyl-1-phenyl-propan-1-one as photoinitiator and 0.5% of polydimethylsiloxane as anti-adhesive additive In a prepolymer matrix made of acrylate, in oligomer structural units having at least one polymerizable double bond, for example tetrafunctional urethane acrylate oligomers with different molecular weights from 600 g / mol to 1000 g / mol The modulus of elasticity increases as the ratio increases. At a concentration of 80% urethan...

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Abstract

In the case of a prepolymer composition comprising at least one monomeric or oligomeric structural unit having at least one polymerizable C-C double bond and at least one polyfunctional monomeric structural unit, the The multifunctional monomeric structural unit comprises a polyfunctional monomeric structural unit having at least two thiol groups selected from the group consisting of 3-mercaptopropionate, 3-mercaptoacetate, 2-mercaptoacetate and alkylthiol; the monomeric structural unit or oligomer structural unit having at least one polymerizable double bond is selected from the group consisting of acrylate, methyl acrylate, vinyl ether, allyl ether, propenyl Ethers, olefins, dienes, unsaturated esters, allyl triazines, allyl isocyanates, and N-vinyl amides; and comprising at least one surface-active anti-adhesive additive selected from the group consisting of alkyl-(form base) acrylates, polysiloxane (meth)acrylates, perfluoroalkyl‑(meth)acrylates, perfluoropolyether‑(meth)acrylates, alkyl‑vinyl ethers, polysiloxane Alkyl-vinyl ethers, perfluoroalkyl-vinyl ethers and perfluoropolyether-vinyl ethers, and containing photoinitiators; and uses thereof.

Description

technical field [0001] The invention relates to a prepolymer composition comprising at least one monomeric or oligomeric structural unit having at least one polymerizable double bond and at least one polyfunctional monomeric structural unit and the use thereof . Background technique [0002] Due to the rapid development of nanotechnology in recent years, the production of nanostructured components, where such nanostructured components are usually made from photopolymerizable prepolymer compositions, has become significantly more important in industrial manufacturing. Particularly in security technology, in the decorative sector, in product marketing, in the surface modification of various materials and in other areas, extremely fine structures are increasingly being used for specific additional functions, such as self-cleaning of surfaces, Or also to achieve decorative optical effects or anti-reflection etc. For this purpose structures prefabricated by nanotechnology are u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/004G03F7/027G03F7/029G03F7/00G03F7/031G03F7/075
CPCB82Y40/00G03F7/0002G03F7/0275G03F7/028G03F7/0046G03F7/027G03F7/029G03F7/031G03F7/0757C08G75/045
Inventor D·内斯M·莱特格布B·施塔德洛贝尔S·鲁特洛夫A·林彻尼格瓦伦丁·扎青格
Owner 约阿内研究有限责任公司