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Modeling composition and its use

A composition and mixture technology, applied in the field of furnace-hardenable modeling compositions, can solve the problems of damage to hormones or reproduction, insufficient breaking strength, slow hardening process, etc., and achieve the effect of easy manual operation

Inactive Publication Date: 2008-12-17
STAEDTLER MARS GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of such compositions is that they harden only at very high temperatures, wherein the hardening process takes place slowly
For this reason, the fracture strength of such hardened compositions is insufficient
Furthermore, disadvantageously, such compositions have a content of up to 30% by weight of phthalate-containing plasticizers, which are suspected of having hormonal or reproductively damaging effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Formulation Example 1: Unpigmented Composition

[0042] 65% by weight PVC or PVC copolymer

[0043] 19% by weight of adipic acid-based plasticizer

[0044] 7% by weight stabilizer

[0045] 19% by weight talc

Embodiment 2

[0046] Formulation Example 2: Red Composition

[0047] 63% PVC by weight

[0048] 24% by weight of citric acid-based plasticizer

[0049] 1% by weight stabilizer

[0050] 7% by weight costabilizer

[0051] 4% filler by weight

[0052] 1% by weight Pigment Red 254

Embodiment 3

[0053]Formulation Example 3: Yellow Composition

[0054] 65% PVC by weight

[0055] 21.5% by weight of citric acid-based plasticizer

[0056] 1.5% by weight costabilizer

[0057] 5.5% by weight stabilizer

[0058] 6.0% by weight of fillers (chalk, silica)

[0059] 0.5% by weight of Pigment Yellow 83

[0060] Prior Art: Ocher Color Contrast Formula

[0061] 15kg emulsion PVC

[0062] 17kg suspension PVC

[0063] 2.5kg calcium stearate

[0064] 13.5kg di-n-octyl phthalate (plasticizer)

[0065] 1kg fatty acid octyl ester

[0066] 14kg aluminum silicate

[0067] 0.5kg of pigment (ocher mixture)

[0068] In a preferred embodiment, the content of plasticizer is between 10 and 28% by weight, in a particularly preferred embodiment between 15 and 24% by weight.

[0069] Phthalate-free plasticizers used with preference are based on citric acid and / or adipic acid.

[0070] The desired consistency of the composition can be adjusted without problems by varying the content of ...

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PUM

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Abstract

The invention relates to a modeling composition consisting of binder which is present as a plastisol and optionally further additives, wherein the plastisol is composed essentially of PVC and plasticizer and wherein the composition comprises at least one phthalate-free plasticizer.

Description

technical field [0001] The invention relates to oven-hardenable styling compositions and their use. Background technique [0002] Plastic, oven-hardenable compositions for shaping and molding objects are known in principle. [0003] Styling compositions are also to be understood as so-called clays or, in the case of polymer-containing compositions, polymer clays. [0004] Thus, plastic, hand-mouldable and heat-hardenable compositions are known from DE 25 15 757 C3. Such compositions mainly consist of polyvinyl chloride, fillers and plasticizers. The disadvantage of such compositions is that they harden only at very high temperatures, wherein the hardening process takes place slowly. For this reason, the fracture strength of such hardened compositions is insufficient. Furthermore, it is disadvantageous that such compositions contain up to 30% by weight of phthalate-containing plasticizers, which are suspected of having hormonal or reproductively damaging effects. [0005...

Claims

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Application Information

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IPC IPC(8): C08K5/00
CPCC08J3/18C08J2327/06C08K5/0016C08K5/11C08L27/06C08K5/00C08K5/10C08K5/09
Inventor Y·弗雷泽I·罗伊特H·施诺雷尔
Owner STAEDTLER MARS GMBH & CO KG
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