Polymer composite, method and polymer composition
First Claim
1. A polymer composite suitable for use as at least one of a dye, coloring agent and chemical indicator polymer, the polymer composite comprising a polymer resin and at least one colorant capable of being dispersed on a molecular level without aggregates in the polymer resin, the colorant is caused to migrate into the polymer resin by relaxation of a thermodynamically metastable polymer resin layer having a film of the colorant thereon to a thermodynamically stable state to form a polymer precursor.
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Abstract
A polymer composite contains colorant molecules dispersed therein. The colorant molecules can be dispersed in the polymer or bound to the polymer molecules. When the polymer is a polyamide, the polyamide is in a noncrystalline state due to the inhibition of crystallization imparted by the size and shape of the colorant molecules because the colorant is separated on a molecular level. A high colorant availability is obtained. A method of producing the polymer composite includes the steps of forming a metastable polymer resin layer, applying a film of colorant to the layer, stabilizing the layer, dissolving the stable layer in a solvent, aspirating the solution to remove impurities and aggregates and then removing the solvent. A polymer composition can be produced by mixing the polymer composite with a polymer.
22 Citations
22 Claims
- 1. A polymer composite suitable for use as at least one of a dye, coloring agent and chemical indicator polymer, the polymer composite comprising a polymer resin and at least one colorant capable of being dispersed on a molecular level without aggregates in the polymer resin, the colorant is caused to migrate into the polymer resin by relaxation of a thermodynamically metastable polymer resin layer having a film of the colorant thereon to a thermodynamically stable state to form a polymer precursor.
- 12. A polymer composite suitable for use as at least one of a dye, coloring agent and chemical indicator polymer, the polymer composite comprising a polymer resin and at least one colorant selected from the group of porphyrin derivatives, metallo-porphyrin derivatives, phthalocyanine derivatives, metallo-phthalocyanine derivatives, naphthalocyanine derivatives, metallo-naphthalocyanine derivatives azobenzene, 4-phenylazobenzene, 4-dimethylaminoazobenzene, 4-dimethylamino-4'"'"'-methylazobenzene, 4-nitro-4'"'"'-dimethylaminoazobenzene, 1-phenylazonaphthalene, 4-phenylazoazobenzene, (naphthylazo)-1,1'"'"'-azonaphthalene, trisazobenzene, stilbene, 4-dimethylamino-4'"'"'-nitrostilbene, coumarin, 4-methyl-7-dimethylaminocoumarin, 3,3'"'"'-diethyldicarbocyanine iodide, 3,3'"'"'--methyloxatricarbocyanine iodide, 3-ethyl-5-[4-(3-ethyl-2-benzothiazolylidene)-2-hexenylidene]rhodanine, squarilium, spiropyran, fulgide, indigo, anthracene, perylene and 1,4-benzoquinone dispersed without aggregates in the polymer resin by migration of a film of the colorant on a thermodynamically metastable polymer resin layer into the polymer resin layer by relaxation to a thermodynamically stable state to form a polymer precursor.
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20. A polymer composite suitable for use as at least one of a dye, coloring agent and chemical indicator polymer, the polymer composite comprising a polymer resin and at least one colorant dispersed in the polymer resin by the migration of the colorant into a thermodynamically metastable polymer resin layer from a film of the colorant thereon by relaxation to a thermodynamically stable state to form a polymer precursor, dissolution of the precursor in a solvent to form a solution, filtration of the solution to form a filtrate and solidification the filtrate to form a substantially aggregate free polymer composite.
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21. A polymer composite suitable for use as at least one of a dye, coloring agent and chemical indicator polymer, the polymer composite comprising a polymer resin and at least one colorant capable of being dispersed on a molecular level without aggregates in the polymer resin by:
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depositing a thermodynamically metastable polymer resin layer; depositing a film of the at least one colorant onto the metastable layer; relaxing the polymer layer to cause migration of the colorant into the polymer layer to disperse the colorant in the polymer layer; and removing aggregates or impurities from the polymer resin layer having colorant dispersed therein using a solvent. - View Dependent Claims (22)
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Specification