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Solidification matrix using polycarboxylic acid polymer

A polymer, polycarboxylic acid technology, applied in detergent compositions, organic detergent compositions, inorganic/elemental detergent compositions, etc., can solve the lack of predictability, hinder the successful replacement of environmentally friendly alternatives, and dimensional stability. Lack of predictability, etc.

Active Publication Date: 2014-03-12
ECOLAB INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lack of predictability in the curing process and lack of predictability in dimensional stability in solid form compositions hinder efforts to successfully replace phosphorus- and / or NTA-containing components with environmentally friendly alternatives

Method used

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  • Solidification matrix using polycarboxylic acid polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、2 and 3 and comparative example A

[0094] Examples 1, 2 and 3 are compositions of the present invention using a polycarboxylic acid polymer as part of the curing matrix. In particular, the compositions of Examples 1, 2, and 3 used polyacrylic acid polymers, modified polyacrylic acid polymers, and polymaleic acid polymers, respectively, as part of the curing matrix. In addition, the compositions of Examples 1, 2 and 3 also included sodium carbonate (soda ash or heavy soda ash), sodium bicarbonate, sodium metasilicate, agent, surfactant, defoamer, sodium hydroxide and water. Sodium carbonate, sodium bicarbonate, sodium metasilicate, synergist, surfactant, and defoamer are premixed to form a powder premix, and polycarboxylate polymer, sodium hydroxide, and water are premixed to form a liquid premix mixture. The powder premix and liquid premix are then mixed together to form the composition. About 50 grams of this composition was compressed into tablets at about 1000 psi for about 20 seconds.

[0095] The compo...

Embodiment 1

[0103] The only difference in the compositions of Examples 1, 2 and 3 and Comparative Example A is the presence of the polycarboxylic acid polymer. It is therefore believed that the polycarboxylic acid polymer contributes to the dimensional stability of the products of the compositions of Example 1, Example 2 and Example 3. Since the composition of Comparative Example A does not contain a polycarboxylate polymer, the composition does not include a mechanism to control the movement of water within the solid product. The composition of Comparative Example A would not be suitable for processing and failed the dimensional stability test.

[0104] Dimensional Stability Test of Casting Products

[0105] A batch of approximately 4000 grams of product using polycarboxylate polymer as part of the curing matrix was first poured into capsules. Measure and record the diameter of the capsule. The capsules were kept at room temperature for one day, in an oven at a temperature of about ...

Embodiment 4

[0107] Examples 4, 5 and 6 are compositions of the invention using a polycarboxylate polymer as part of the curing matrix. In particular, the composition of Example 4 uses a polyacrylic acid polymer as part of the curing matrix, the composition of Example 5 uses a modified polyacrylic acid polymer as part of the curing matrix, and the composition of Example 6 uses polymaleic acid polymer. The polymer acts as part of the curing matrix. The compositions of Examples 4, 5 and 6 each also included demineralized water, synergist, water conditioner, sodium hydroxide 50%, sodium carbonate (heavy Soda ash), anionic surfactants and nonionic surfactants. The liquid (demineralized water, builder, water conditioner, polycarboxylate polymer and sodium hydroxide 50%) is premixed to form a liquid premix and the powder (sodium carbonate, anionic surfactant and non- ionic surfactant) to form a powder premix. The liquid premix and powder premix are then mixed to form the composition, which is...

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Abstract

A solidification matrix includes a polycarboxylic acid polymer, sodium carbonate, and water. Exemplary polycarboxylic acid polymers include a polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, a modified polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, and a polymaleic acid polymer having a molecular weight of between about 500 and about 5,000. The polycarboxylic acid polymer, sodium carbonate, and water interact to form a hydrate solid. The solidification matrix may be used, for example, in a solid detergent composition.

Description

technical field [0001] The present invention relates generally to the field of curing and curing matrices. In particular, the present invention relates to polycarboxylic acid polymers as part of a curing matrix. Background technique [0002] SOLID as claimed in Fernholz et al., U.S. Reissue Patent Nos. 32,762 and 32,818 Brand Technology advocates the use of curing technology and solid block detergents in institutional and industrial operations. Additionally, hydrated sodium carbonate cast solid products using substantially hydrated sodium carbonate materials are disclosed in Heile et al., US Patent Nos. 4,595,520 and 4,680,134. [0003] More recently, attention has turned to making highly effective detergent materials from less caustic materials, such as soda ash (also known as sodium carbonate). Early studies in the development of sodium carbonate-based detergents found that hydrated sodium carbonate-based materials often swelled (ie, dimensionally unstable) after curin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/37
CPCC08L33/02C11D3/10C11D17/0065C11D3/3761C11D17/0052C08K3/26C08L31/02C08L33/08C08L35/00C11D3/37
Inventor B·L·特杰尔塔L·M·桑德斯M·E·贝西
Owner ECOLAB INC