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Organic/Inorganic Lewis Acid Composite Materials

a composite material and organic/inorganic lewis acid technology, applied in the direction of dyeing process, coating, chemistry apparatus and process, etc., can solve the problems of lack of understanding regarding the chemistry of producing stable and nontoxic paint systems, and the use of clay suffers from various limitations

Inactive Publication Date: 2007-02-15
BOARD OF RGT THE UNIV OF TEXAS SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018] Other objects, features and advantages of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and the specific examples, while indicating specific embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

Problems solved by technology

Moreover, there was a lack of understanding regarding the chemistry for producing stable and nontoxic paint systems by combining dyes and pigments with fibrous and layered clays.
Though of great interest and value, the use of clays suffers from various limitations that could potentially be eliminated by the use of other materials with which the Maya blue-class of pigments and dyes could be used.

Method used

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  • Organic/Inorganic Lewis Acid Composite Materials
  • Organic/Inorganic Lewis Acid Composite Materials
  • Organic/Inorganic Lewis Acid Composite Materials

Examples

Experimental program
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Effect test

example 1

Materials & Methods

[0068] SiAl-Novaperm Red complex preparation. SiAl (3111) (Silica Alumina, a white zeolite powder) purchased from Davidson Catalysts was mixed with Novoperm Thi red 4G-70 purchased from Clariant corporation 95:5% by weight and mixed in a blender for 5 min. The mixture was then ball milled in a ball mill for 18 hrs and subsequently heated in an oven at 125° C. for 24 hrs. The color change of the ball milled composition changed to a light orange color as shown in FIG. 1.

[0069] Paint Preparation. The above material was used as a pigment in paint at a pigment content of 11.78% and percentage non volatile matter of 38.60%. The formulation is listed in Table 2. The paint was applied on a pre-printed Al panel with a 10 mil wet film applicator and allowed to mature for 7 days.

Results

[0070] Accelerated weather results. The paints were exposed to accelerated UV and condensation weathering chamber (QUV Basic obtained from Q panel instruments) for a period of 146 hours ...

example 2

[0075] Si / Al and zeolites, materials commonly used as chemical and petroleum refining catalysts, have the advantage of being synthesized with known controllable compositions. Cracking catalysts, for example, are made with varying amounts of Al replacing Si in the amorphous SiO2 lattice (i.e., Al substituted SiO2). The amount of Al is adjusted to create Lewis acid sites for various applications. An example of a thioindigo complex with a 10% Al doped amorphous SiO2 is shown in FIG. 5. Again the required color change is apparent but different from the complex formed with palygorskite:

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Abstract

The present invention involves new compositions comprising an organic pigment or dye complexed with a support via a coordinate covalent bond. The support is characterized has having a Lewis acid or Lewis acid substitute.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 60 / 691,683 filed Jun. 17, 2005, which is incorporated by reference in its entirety.[0002] The government may own rights in the present invention pursuant to Grant No. 26-3000-20 from the Department of Energy.BACKGROUND OF THE INVENTION [0003] I. Field of the Invention [0004] The present invention relates to the field of pigment and dye compositions. More specifically, it provides for novel compositions comprising an organic dye or pigment complexed with a support comprising a metal oxide, wherein the complex comprises a coordinate covalent bond between the dye and the support. [0005] II. Description of Related Art [0006] In the scientific literature, the term Maya blue refers to a “turquoise” brilliant shade of blue that is found on murals and archaeological artifacts, for example, throughout Mesoamerica. It is described in the literature as being composed of palygorskite clay and indigo, that when mixed ...

Claims

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Application Information

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IPC IPC(8): D06P5/00
CPCB82Y30/00C01P2006/64C08K3/22C08K5/3417C09B7/00C09B7/04C09B7/10C09B67/0002C09B67/0005C09B67/0007C09C1/3063C09C1/405C09C1/407C09C3/08C09D7/007C09D7/1225C01P2006/62C01P2006/63C01P2002/88C09D7/41C09D7/62C09B67/00C09C1/40C09C1/30
Inventor CHIANELLI, RUSSELLPOLETTE, LORI A.
Owner BOARD OF RGT THE UNIV OF TEXAS SYST
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