Composition, method of making composition, and article

A composition and polymer technology, applied in the direction of microsphere preparation, microcapsule preparation, coating, etc., can solve the problem of reduced light transmittance of windows, and achieve the effect of excellent peeling characteristics

Inactive Publication Date: 2018-10-23
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During assembly of such articles, residues from adhesives and / or sealants used in the manufacture of the articles may accumulate on the windows, resulting in reduced light transmission through said windows

Method used

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  • Composition, method of making composition, and article
  • Composition, method of making composition, and article
  • Composition, method of making composition, and article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0119] All parts, percentages, ratios, etc. in the examples, as well as in the remainder of this specification, are by weight unless otherwise indicated. All chemicals used in the examples are available from general chemical suppliers such as Sigma-Aldrich Corp., Saint Louis, Missouri, unless otherwise noted. In the examples, "% by weight" means percentage by weight, and "mol" means mole.

[0120] Table of materials used in the examples

[0121]

[0122] Tetramethoxysilane (TMOS), tetraethoxysilane (TEOS), methyltriethoxysilane (MTES), ethyltriethoxysilane (ETES), and vinyltriethoxysilane (VTES ) was purchased from Alfa Aesar, Ward Hill, Massachusetts (Alfa Aesar, Ward Hill, Massachusetts)

[0123] 3-Glycidoxypropyltrimethoxysilane, 3-(Acryloyloxypropyl)trimethoxysilane, Chloromethyltriethoxysilane, 5,6-Epoxyhexyltriethoxysilane, Phenyltriethoxysilane, diethylaminomethyltriethoxysilane, (2-triethoxysilylpropoxy)ethoxysulfolane were purchased from Gelest Inc., Tarrytown...

Embodiment 1-25 and comparative example CEI

[0196] Embodiment 1-25 and comparative example CEI-CEP

[0197] Comparative Examples I-P are commercially available polymer latex dispersions without colloidal silica particles as shown in Table 3.

[0198] Examples 1-25 were prepared by following the method for preparing composite particle dispersions - Method I or II. Examples prepared by the method of making composite particle dispersions - Method I and acidified to pH 2-4 using nitric acid are further denoted "A", while those acidified using acetic acid are further denoted "B". Examples prepared by the method for preparing composite particle dispersions - Method II and acidified to pH 2-4 using IE ion exchange resins are further denoted as "C".

[0199] Examples 1-10 were run using polymer latex R966 and the functionalized silica particle dispersions from Preparations 2-9. Silica: % by weight of polymer latex, acidification process and pH change as reported in Table 3.

[0200]Examples 11-21 were run in the same manne...

Embodiment 26C-27

[0207] Embodiment 26C-27C and comparative example CEQ-CER

[0208] Comparative examples CEQ and CER are mixtures of functionalized silica particle dispersion PE2 and polymer latex without acidification. Comparative Example CER also contained PVP. The compositions and cumulative fitting results of comparative CEQ and CER composite particles are reported in Table 4.

[0209] Examples 26C-27C are composite particles made from a dispersion of functionalized silica particles from PE2 and acidification (by ion exchange to pH 2) of the polymer latex through a self-assembly process. The compositions and cumulative fit results for the composite particles of Examples 26C-27CC are reported in Table 4.

[0210] To demonstrate the reversibility of the composite particles and process of the present disclosure, the Example 26C-27C dispersions (pH 2) were titrated to pH 10 with ammonia, and the cumulative fit results for the resulting composite particles were measured and reported in Tabl...

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Abstract

The invention discloses a composition having pH of 5 or less. The composition comprises composite particles dispersed in an aqueous continuous liquid phase. Each composite particle comprises a polymercore surrounded by a silicaceous shell. From 3 to 50 percent of silicon atoms in the silicaceous shells are bonded to respective organic groups via a silicon-carbon covalent bond. The weight ratio ofthe total amount of the silica in the composition to the total amount of the at least one polymer is from 0.1 to 19. The composition is useful for making various articles. A method for making the composition is also disclosed. Silicaceous particles dispersed in an aqueous phase, wherein from 3 to 50 percent of silicon atoms in the silicaceous particles are bonded to organic groups via a silicon-carbon covalent bond are also disclosed.

Description

technical field [0001] The present invention broadly relates to compositions useful for coating substrates, methods of making them and articles made therefrom. Background technique [0002] Many efforts have been made by researchers to develop compositions that can be applied to substrates to provide beneficial protective or functional layers having desirable properties such as one or more of ease of cleaning, stain resistance, antireflection, etc. kind. Many compositions developed for these applications rely on materials (eg, volatile organic solvents) that may present environmental concerns and / or involve complex application processes. Furthermore, problems associated with poor shelf life continue to plague product developers of these compositions. [0003] Any reflection or blocking of incident light transmitted through the transparent sheet is generally undesirable for articles comprising windows of transparent materials through which light must pass, such as glass or ...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08K9/08C08J3/12C08J3/215C08J7/043C08J7/046
CPCC08K5/5419C08K9/06C08J3/128C08J2333/00C08J2375/04C08J2433/00C08J2475/04C08J7/0427C08J7/043C08J7/046C08L75/04C08K5/5415C08K5/5425C08J2383/07C09D7/67C09D7/70B01J13/04C08K3/36C08K2201/005C08K2201/011C09D5/004
Inventor 蒋轩景乃勇吴书鹏喻志刚刘家丰熊明娜
Owner 3M INNOVATIVE PROPERTIES CO
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