Process for preparing foam control composition in particle or powder form

A technology of foam control and foam control agent, which is applied in detergent composition, organic cleaning composition, separation method, etc., and can solve problems such as low efficiency

Pending Publication Date: 2022-06-03
ELKEM SILICONES USA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] However, powdered foam control compositions generally exhibit lower efficacy compared to active ingredients used in liquid form and at the same concentration

Method used

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  • Process for preparing foam control composition in particle or powder form
  • Process for preparing foam control composition in particle or powder form
  • Process for preparing foam control composition in particle or powder form

Examples

Experimental program
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specific Embodiment approach

[0095] In order to facilitate a better understanding of the present invention, the following examples of certain aspects of some embodiments are given. The following examples should in no way be construed to limit or define the scope of the present invention.

Embodiment 1

[0098] Composition 1 is obtained by mixing components (I) and (II):

[0099] (1) Polymer A, 70 g calcium lignosulfonate liquid (Flambeau River Papers)

[0100] (II) 30 grams of foam control agent concentrate, containing:

[0101] a) 40% Silcolapse TM Mixture of 825 & 500, 75:25 wt% (Elkem Silicones),

[0102] b) 25% 5803 (Evonik), and

[0103] c) 35% L-101 (BASF).

[0104] The compositions are mixed together using a high speed mixer. After drying using a conventional rotary evaporator and a 105°C oil bath for about 2 hours, a brittle brown material was produced that was easily ground to a dry powder with a mortar and pestle. The yield of this preparation was 64 grams. On a dry weight basis, this formulation contained 51% antifoam concentrate and contained 19% silicone antifoam compound.

Embodiment 2

[0106] Polymer A: AR-540 Copolymer of acrylic & sulfonated monomers, (45% solids). This predominantly acidic (pH 3-4) copolymer should be salted in situ.

[0107] Composition 2: (in situ salting of the polymer by aqueous triethanolamine solution), obtained by mixing components (I) and (II):

[0108] (1) 70 grams of an aqueous dispersion, comprising:

[0109] a) 50g Aquatreat AR-540 pH 3-4 (Nouryon)

[0110] b) 10 g of triethanolamine (79% in water)

[0111] c) 5 grams of magnesium sulfate (PQ)

[0112] d) 5 grams of dioctyl sulfosuccinate (Dow GR-5M)

[0113] (II) 30 grams of defoamer concentrate

[0114] a) 15g Silcolapse TM 500 (Elkem Silicones),

[0115] b) 3 grams 5803(Evonik)

[0116] c) 12 g polypropylene glycol (PPG) 2000 (Vantage)

[0117] The compositions are mixed together using a high speed mixer. After drying using a conventional rotary evaporator and a 105°C oil bath for about 2 hours, this produced a slightly clumpy pale yellow material that was easi...

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PUM

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Abstract

The present disclosure relates generally to methods of making powder or particulate foam control compositions and methods for reducing or preventing or breaking foam in various applications, such as powder detergents as well as coatings, cement, concrete, plasterboard and other architectural type applications or some agricultural formulations such as fertilizers, herbicides and insecticides.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application is an international application under the Patent Cooperation Treaty, and claims priority to US Provisional Application No. 62 / 886,666, filed on August 14, 2019, the contents of which are incorporated herein by reference in their entirety. technical field [0003] The present disclosure generally relates to methods of making powdered or granular foam control compositions and methods for reducing or preventing or breaking foam in various applications such as coatings, powder detergents, cementing, concrete, Gypsum board and other building type applications or some agricultural formulations such as fertilizers, herbicides and pesticides. Background technique [0004] Foams are dispersions of air bubbles in a liquid or solid matrix. Surfactants or other surface active ingredients such as detergents, wetting agents, emulsifiers or dispersants commonly used in various industries reduce the surface tension of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04C08K3/36C08L25/18C08L33/08C08L83/04C11D3/16
CPCB01D19/0409B01D19/0431B01D19/0445B01D19/045B01D19/0454C08K3/36C08L25/18C08L33/08C08L83/04C11D3/162Y02W30/91C08J3/122C08J3/215
Inventor J·佳丽斯M·哈勒M·蒂蒙斯
Owner ELKEM SILICONES USA CORP
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