composition

Abstract

The present invention relates to a composition comprising silicone polyether A and silicone polyether B and one or more of mineral oil, vegetable oil, silicone oil, fatty alcohol, and polyoxyalkylene. The composition of the present invention exhibits excellent synergistic effects in optimizing flow characteristics and removing air from the composite, resulting in a very smooth and virtually non-porous surface after curing. Furthermore, the composition exhibits excellent storage resistance, as evidenced by its performance before and after storage at 50°C for two weeks, and there is no discernible difference when used in mineral building materials.

Description

Technology Field

[0001] The present invention relates to a composition suitable for optimizing mineral building materials to have a positive effect on fluidity and density before curing, as well as surface quality after curing. Background Technology

[0002] Silicone defoamer formulations are well known to be widely used in paints, latex, cement, fertilizers, soaps, and detergents, as well as in various other applications (e.g., pulp and paper, chemicals, textiles, fermentation and sugar beet processing, water treatment, metalworking, etc.). These formulations traditionally contain multiple ingredients, the most important of which is the silicone "defoamer." These agents are sometimes also known as antifoaming agents, foam control agents, sod suppressors, and foam inhibitors.

[0003] Silicone polyethers (SPEs), also known as polyorganosiloxane-polyether block copolymers, polyether siloxanes, or polyether-modified polysiloxanes, are an important class of defoaming agents. Silicone polyethers have long been used as defoaming agents requiring good compatibility, such as in the case of DE-B 22 22 998, optionally mixed with polypropylene glycol. Polyether siloxanes have 6 to 420 polydimethylsiloxane units and 3 to 30 siloxane units having polyether groups. U.S. Patent 5271868 discloses a defoaming agent composition that exhibits high defoaming activity even at high temperatures and has excellent durability suitable for use in dyeing processes. The defoaming composition comprises, in addition to a silicone oil compound and a silica filler, a poly(oxyethylene-oxypropylene) copolymer and a silicone polyether having polyoxyalkylene groups composed of two different types in relation to the molar ratio of oxyethylene units and oxypropylene units.

[0004] U.S. Patent 6605183 discloses an antifoaming agent containing silicone oil and silicone polyether.

[0005] CN114026153B discloses a foam control agent comprising a linear polyorganosiloxane-polyether block copolymer comprising a polyorganosiloxane single block having a DP of 10 to 200 and a single block polyether block having a DP of 2 to 60.

[0006] CN101966403A discloses a vesicle formulation comprising a silicone polyether prepared by mixing an allyl polyether, an allyl polypropoxylate, and a polysiloxane having Si-bonded hydrogen.

[0007] US5543082 discloses defoaming agents containing silicon polyethers for strong acids and strong bases, and the embodiments disclose the use of combinations of various silicon polyethers, but do not mention how silicon polyethers will be applied to mineral building materials.

[0008] Mineral building materials and their importance are known to those skilled in the art and are widely described, for example, in the literature [Leopolder, ZKG International, 32 in No. 4 (2010)] or in the literature [Schumacher M. in Baustoffpraxis, 22, volume 12 (2009)].

[0009] Among mineral building materials, fluid compositions such as screeds, grouting materials, and self-leveling compositions are particularly important.

[0010] Grouting materials are used to fill gaps and holes in building structures and to reinforce them, thereby improving strength, stability, and durability. They are typically mixed with water and grouted into equipment foundations, where they flow and fill the gaps. Grouting materials possess good free-flow characteristics, rapid curing, early strength, high strength, no shrinkage, and micro-expansion.

[0011] A self-leveling composition is a flooring material that flows and levels after being mixed with water or an auxiliary paving material. The self-leveling composition includes a self-levelling overlayment (SLO) and a self-levelling underlayment (SLU).

[0012] Self-leveling overlayment (SLO) is a wear-resistant self-leveling mortar for fine leveling of floors, providing a flat and / or smooth surface that can be used as a decorative layer or after coating with other finishing materials. Therefore, it needs to have specific characteristics: it must be able to flow easily to compensate for floor unevenness while maintaining good processing quality; and after flow, it must harden into a solid and highly strong layer with excellent load-bearing capacity and resistance to wear and abrasion, as well as a very smooth surface.

[0013] Self-leveling underlayments (SLUs) are self-leveling mortars for leveling floors that provide a flat and / or smooth surface that can be used to carry an upper layer of a finishing surface material. Therefore, they need to have specific characteristics: they must be able to flow easily to compensate for floor irregularities while maintaining good processing quality; after flow, they must harden into a solid and highly strong layer with good load-bearing capacity; and at the same time, they must have a surface that is extremely smooth and maintains good adhesion properties, so that the overlay can be reliably and durablely applied to the floor-leveling composition.

[0014] CN103429551A discloses the use of a specific mass ratio of nonionic or amphoteric surfactants to defoaming agents in mineral building materials, which has a particularly favorable effect on the flow characteristics of the composite and the removal of air from the composite, thereby enabling a very smooth and virtually nonporous surface.

[0015] The objective of the present invention was to provide a composition that improves fluidity and density before curing, surface quality after curing, and ease of manufacture and application when used in mineral building materials, particularly in grouting materials or self-leveling compositions.

[0016] The composition of the present invention exhibits excellent synergistic effects in optimizing flow characteristics and removing air from the composite, resulting in a very smooth and virtually non-porous surface after curing. Furthermore, this composition exhibits excellent storage resistance, as evidenced by its performance before and after storage at 50°C, and there is no discernible difference when used in mineral building materials.

[0017] In the present invention, the mineral building material exhibits improved fluidity and higher density before hardening, as well as better surface quality, compressive strength, and wear resistance after hardening.

[0018] A first aspect of the present invention discloses a composition comprising a component (1) silicon polyether and a component (2), and

[0019] Component (1) The silicon polyether comprises silicon polyether A represented by chemical formula I and silicon polyether B represented by chemical formula II;

[0020]

[0021] In the chemical formula, R is independently selected from a hydrocarbon group having 1 to 18 carbon atoms; for example, methyl, ethyl, phenyl, benzyl, preferably a hydrocarbon group having 1 to 12 carbon atoms, for example, methyl, ethyl, phenyl, benzyl, more preferably methyl, ethyl;

[0022] R' is R or P. P=R 1 -(C3H6O) z R 2 Selected independently from;

[0023] R'' is R or G. G=R 1 -[(C2H4O) x (C3H6O) y ] R 2 Selected independently from;

[0024] R 1 = -(CH2) p O-, p=2 to 10, preferably p is 2, 3, 4, 5, 6, more preferably 3 or 4;

[0025] R 2 is selected from hydrogen, alkyl, arylalkyl, aryl, or RC(O)-, preferably hydrogen, methyl, and acetyl, more preferably hydrogen or methyl;

[0026] a, b, c, and d are integers independently selected from 1 to 3;

[0027] m is an integer selected from 1 to 150, preferably 1 to 120, more preferably 5 to 100;

[0028] n is an integer selected from 0 to 50, preferably 0 to 40, more preferably 0 to 30;

[0029] i is an integer selected from 1 to 150, preferably 5 to 120, more preferably 10 to 100;

[0030] j is an integer selected from 0 to 50, preferably 1 to 40, more preferably 1 to 30;

[0031] x is an integer selected from 1 to 60, preferably 5 to 40, more preferably 10 to 30;

[0032] y is an integer selected from 0 to 60, preferably 1 to 40, more preferably 1 to 30;

[0033] z is an integer selected from 1 to 60, preferably 10 to 40, more preferably 15 to 40;

[0034] However, at least one R' is P when n=0, and at least one R'' is G when j=0;

[0035] The component (2) is selected from one or more of mineral oil, vegetable oil, silicone oil, fatty alcohol, and polyoxyalkylene.

[0036] "Silicone polyether" (SPE) contains polyoxyalkylene groups and polysiloxane groups. The silicone polyether of the present invention comprises silicone polyether A represented by Formula I and silicone polyether B represented by Formula II;

[0037]

[0038] In the chemical formula, R is independently selected from hydrocarbon groups of 1 to 18 carbon atoms;

[0039] Examples of R are alkyl groups, e.g., methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl, tert-pentyl; hexyl groups, e.g., n-hexyl; heptyl groups, e.g., n-heptyl; octyl groups, e.g., n-octyl and iso-octyl groups, e.g., 2,2,4-trimethylpentyl; nonyl groups, e.g., n-nonyl; decyl groups, e.g., n-decyl; dodecyl groups, e.g., n-dodecyl; octadecyl groups, e.g., n-octadecyl; cycloalkyl groups, e.g., cyclopentyl, cyclohexyl, cycloheptyl, and methylcyclohexyl; olefin groups, e.g., vinyl, 1-propenyl, and 2-propenyl; Aryl groups, e.g., phenyl, naphthyl, anthracenyl, and phenanthrenyl groups; alkylaryl groups, e.g., o-, m-, and p-thyll groups, dimethylphenyl groups, and ethylphenyl groups; and arylalkyl groups, e.g., benzyl groups, alpha-phenylethyl and beta-phenylethyl groups.

[0040] R is preferably a hydrocarbon group having 1 to 12 carbon atoms, e.g., methyl, ethyl, phenyl, benzyl, more preferably a hydrocarbon group having 1 to 5 carbon atoms, e.g., methyl, ethyl;

[0041] R' is R or P. P=R 1 -(C3H6O) z R 2 Selected independently from;

[0042] R'' is R or G. G=R 1 -[(C2H4O) x (C3H6O) y ] R 2 Selected independently from;

[0043] R 1 = -(CH2) p O-, p=2 to 10, preferably p is 2, 3, 4, 5, 6, more preferably 3 or 4;

[0044] R 2 is selected from hydrogen, alkyl, arylalkyl, aryl, or RC(O)-;

[0045] R 2 Examples of are hydrogen, methyl, ethyl, n-propyl, isopropyl, butyl, hexyl, decyl, dodecyl, 2-phenylethyl, phenyl, acetyl, preferably hydrogen, methyl, and acetyl, more preferably hydrogen or methyl;

[0046] a, b, c, and d are integers independently selected from 1 to 3; preferably 1 to 2;

[0047] m is an integer selected from 1 to 150, preferably 1 to 120, more preferably 5 to 100, e.g., 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95;

[0048] n is 0 to 50; preferably 0 to 40, more preferably 0 to 30; for example, an integer selected from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29;

[0049] i is 1 to 150, preferably 5 to 120, more preferably 10 to 100; an integer selected from, for example, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95;

[0050] j is 0 to 50; preferably 1 to 40, more preferably 1 to 30; for example, an integer selected from 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29;

[0051] x is 1 to 60, preferably 1 to 40, more preferably 1 to 30; for example, an integer selected from 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29;

[0052] y is 0 to 60, preferably 1 to 40, more preferably 1 to 30; for example, an integer selected from 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29;

[0053] z is 1 to 60, preferably 10 to 40, more preferably 15 to 40; for example, an integer selected from 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39;

[0054] However, at least one R' is P when n=0, and at least one R'' is G when j=0.

[0055] Preferably, the silicon polyether A has at least one terminal polyether group, such as the silicon polyether A represented by Formula III, and

[0056]

[0057] In the chemical formula, P, a, b, and m are as defined above.

[0058] Silicon polyether A has polyether groups at both ends, and more preferably, a=b=1.

[0059] Examples of P are groups containing propoxy, e.g., (CH2)3O-(C3H6O) z-H, -(CH2)3O-(C3H6O) z -CH3, -(CH2)3O-(C3H6O) z -C(O)CH3, preferably -(CH2)3O-(C3H6O) z -H, -(CH2)3O-(C3H6O) z -CH3, where z is an integer selected from 1 to 60, preferably 10 to 40, more preferably 15 to 40, and (C3H6O) can be (CH2CH2CH2O) or (CH2CH(CH3)O), preferably (CH2CH(CH3)O).

[0060] Silicon polyether A is 50 to 10,000 mm (when measured according to DIN 51562-1). 2 / s, 25℃, preferably 100 to 5000 mm 2 / s, 25℃, more preferably 300 to 2500 mm 2 / s, 25℃, e.g. 400 mm 2 / s, 500 mm 2 / s, 600 mm 2 / s, 700 mm 2 / s, 800 mm 2 / s, 900 mm 2 / s, 1000 mm 2 / s, 1100 mm 2 / s, 1200 mm 2 / s, 1300 mm 2 / s, 1400 mm 2 / s, 1500 mm 2 / s, 1600 mm 2 / s, 1700 mm 2 / s, 1800 mm 2 / s, 1900 mm 2 / s, 2000 mm 2 / s, 2100 mm 2 / s, 2200 mm 2 / s, 2300 mm 2 / s, 2400 mm 2 It has a viscosity of / s.

[0061] Ideally, component (1) silicone polyether should contain at least 20 wt%, e.g., 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, 50 wt%, 55 wt%, 60 wt%, 65 wt%, 70 wt%, 75 wt%, 80 wt%, preferably in the range of 40 to 80 wt%, more preferably in the range of 50 to 80 wt%, based on 100 wt% of the total mass of component (1) silicone polyether.

[0062] Preferably, the silicon polyether B has at least one branched polyether group, such as the silicon polyether B represented by Formula IV:

[0063]

[0064] In the chemical formula, G, i is as defined above, and j is not 0.

[0065] An example of G is an ethoxy-containing group, e.g. -(CH2)3O-(C2H4O) x (C3H6O) y -H, -(CH2)3O-(C2H4O) x (C3H6O) y -CH3, -(CH2)3O-(C2H4O) x (C3H6O) y -C(O)CH3, -(CH2)3O-(C2H4O) x -H, -(CH2)3O-(C2H4O) x -CH3, -(CH2)3O-(C2H4O) x -C(O)CH3, preferably -(CH2)3O-(C2H4O) x (C3H6O) y -H, -(CH2)3O-(C2H4O) x (C3H6O) y -CH3, -(CH2)3O-(C2H4O) x (C3H6O) y -C(O)CH3, more preferably -(CH2)3O-(C2H4O)x (C3H6O) y -H, -(CH2)3O-(C2H4O) x (C3H6O) y -CH3, x and y are integers selected from 1 to 60, preferably 1 to 40, more preferably 1 to 30, and (C3H6O) can be (CH2CH2CH2O) or (CH2CH(CH3)O), preferably (CH2CH(CH3)O).

[0066] The ratio of x to y is a value selected from 0.01 to 100, preferably 0.1 to 10, more preferably 0.5 to 5, e.g., 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5.

[0067] Silicon polyether B is 50 to 10,000 mm (when measured according to DIN 51562-1). 2 / s, 25℃, preferably 100 to 5000 mm 2 / s, 25℃, more preferably 300 to 2500 mm 2 / s, 25℃, e.g. 400 mm 2 / s, 500 mm 2 / s, 600 mm 2 / s, 700 mm 2 / s, 800 mm 2 / s, 900 mm 2 / s, 1000 mm 2 / s, 1100 mm 2 / s, 1200 mm 2 / s, 1300 mm 2 / s, 1400 mm 2 / s, 1500 mm 2 / s, 1600 mm 2 / s, 1700 mm 2 / s, 1800 mm 2 / s, 1900 mm 2 / s, 2000 mm 2 / s, 2100 mm 2 / s, 2200 mm 2 / s, 2300 mm 2 / s, 2400 mm 2 It has a viscosity of / s.

[0068] Ideally, component (1) silicon polyether should contain at least 10 wt%, e.g. 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt%, 40 wt%, 45 wt%, 50 wt%, 55 wt%, 60 wt%, 65 wt%, 70 wt%, 75 wt%, 80 wt%, preferably in the range of 20 to 60 wt%, more preferably in the range of 20 to 50 wt%, based on 100 wt% of the total mass of component (1) silicon polyether.

[0069] Preferably, the aforementioned component (1) silicone polyether comprises 20 to 90 weight% silicone polyether A and 10 to 80 weight% silicone polyether B based on 100 weight% of the total mass of component (1) silicone polyether, more preferably 40 to 80 weight% silicone polyether A and 20 to 60 weight% silicone polyether B, more preferably 50 to 80 weight% silicone polyether A and 20 to 50 weight% silicone polyether B, and / or

[0070] The weight ratio of silicon polyether A to silicon polyether B is selected from 0.01 to 100, preferably 0.1 to 10, more preferably 0.5 to 10, e.g., 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9; and / or

[0071] The total amount of silicon polyether A and silicon polyether B is greater than 70 weight%, preferably greater than 80 weight%, and more preferably greater than 90 weight% of the silicon polyether component (1), based on 100 weight% of the total mass of the silicon polyether component (1).

[0072] Examples of components (2) are one or more of mineral oil, vegetable oil, silicone oil, fatty alcohol, and polyoxyalkylene.

[0073] Specifically, mineral oil can be more fuel oil, mineral sealing oil, naphthenic oil, and paraffinic oil.

[0074] Vegetable oils are fats and oils obtained from oilseed plants. The starting materials for the production of vegetable oils are oilseeds and oil fruits, where the oil exists in lipid form. Vegetable oils and vegetable fats are primarily esters of glycerol and fatty acids, known as triglycerides. The distinction from vegetable fats is fluidity at room temperature. Similarly, essential oils obtained from plants are not vegetable oils. In contrast to vegetable oils, they do not leave oil stains on paper after drying. Vegetable oils include, for example, sunflower oil, rapeseed oil, safflower oil, soybean oil, corn oil, peanut oil, olive oil, cottonseed oil, palm oil, palm kernel oil, and coconut oil.

[0075] The silicone oil may be a linear or branched polysiloxane having methyl and / or hydroxyl and / or alkyl terminal groups and, preferably, a viscosity greater than 50 mPa·s, particularly preferably 100 mPa·s to 10,000 mPa·s, when measured at 25°C.

[0076] Polyoxyalkylenes, also known as polyethers, are polymers composed of monomers joined together by ether linkages (two carbon atoms bonded to an oxygen atom), such as polyethylene oxide (PEO), polypropylene oxide (PPO), and polytetrahydrofuran, ethylene oxide-propylene oxide copolymers, polybutylene oxide, polytetramethylene oxide, esters and ethers of polyoxyalkylenes. Polyethylene oxide (PEO) is also known as polyoxyethylene (POE) or polyethylene glycol (PEG). Polypropylene oxide (PPO) is also known as polyoxypropylene (POP) or polypropylene glycol (PPG).

[0077] Preferably, the polyoxyalkylene contains any of polypropylene glycol (PPG), polyethylene oxide-polypropylene oxide copolymer, and more preferably polypropylene glycol (PPG).

[0078] The molecular weight of the polyoxyalkylene is preferably 500 to 20000 g / mol, more preferably 1000 to 5000 g / mol, for example selected from 1500 g / mol, 2000 g / mol, 2500 g / mol, and 3000 g / mol.

[0079] The viscosity of the polyoxyalkylene is preferably selected from 50 to 1000 mPa·s, e.g., 150 mPa·s, 200 mPa·s, 250 mPa·s, 300 mPa·s, 350 mPa·s, 400 mPa·s, 450 mPa·s, 500 mPa·s, 550 mPa·s, 600 mPa·s, 650 mPa·s, 700 mPa·s, 750 mPa·s, 800 mPa·s, 850 mPa·s, 900 mPa·s, 950 mPa·s. More preferably, it is selected from 100 to 500 mPa·s.

[0080] The component (2) is preferably selected from one or more of mineral oil, fatty alcohol, polyoxyalkylene, more preferably polyoxyalkylene, and more preferably polypropylene glycol (PPG).

[0081] Preferably, the amount of polyoxyalkylene in component (2) is greater than 50 weight%, more preferably greater than 70 weight%, and more preferably greater than 80 weight%.

[0082] The weight ratio of component (1) silicone polyether to component (2) is selected from 0.001 to 50, preferably 0.005 to 10, more preferably 0.01 to 1, e.g., 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.

[0083] The aforementioned composition may further include a suitable amount of additive (3) selected from (3a) filler particles and / or (3b) organopolysiloxane resin.

[0084] The additive (3) used according to the present invention may be entirely component (3a), entirely component (3b), or a mixture of components (3a) and (3b).

[0085] Component (3a) is preferably a pulverulent, preferably hydrophobic filler.

[0086] Component (3a) is preferably 20 to 1000 m 2 / g, particularly preferably 50 to 400 m 2 It has a BET surface area of ​​ / g.

[0087] The component (3a) preferably has a particle size of less than 10 μm, particularly preferably 10 nm to 5 μm.

[0088] The component (3a) preferably has an aggregate size of less than 100 μm, particularly preferably 1 to 20 μm.

[0089] Examples of components (3a) are silicon dioxide (silica), titanium dioxide, aluminum oxide, metal soap, quartz powder, PTFE powder, fatty acid amide, such as ethylenebisstearamide, and fine hydrophobic polyurethane.

[0090] Preferably, as component (3a), 20 to 1000 m 2 Silicon dioxide (silica), titanium dioxide, or aluminum oxide having a BET surface area of ​​1 / g, a particle size of less than 10 μm, and an aggregate size of less than 100 μm is used.

[0091] As a component (3a), in particular silica, in particular 50 to 800 m 2 It is desirable to have a BET surface area of ​​ / g. Such silica may be fumed or precipitated silica. As component (3a), it is possible to use pretreated silica, i.e., commercially available hydrophobic silica or hydrophilic silica. An example of a standard commercial hydrophobic silica that can be used according to the present invention is HDK® H2000, treated with hexamethyl-disilazane and 140 m 2 Fumed silica having a BET surface area of ​​1 / g (commercially available from Wacker Chemie AG, Germany) and treated with polydimethylsiloxane and 90 m 2 It is precipitated silica having a BET surface area of ​​1 / g (commercially available from Degussa AG, Germany under the trade name "Sipernat D10").

[0092] A second aspect of the present invention discloses a method for preparing the aforementioned composition by mixing component (1) silicone polyether with component (2) to obtain the composition. The form of the composition is not limited and may be an oil mixture, an emulsion, or a powder.

[0093] In one embodiment of the present invention, the composition is an oil mixture comprising component (1) silicone polyether and component (2). The aforementioned oil mixture contains, based on 100 weight% of the total oil mixture mass, 0.01 to 90 weight% of component (1) silicone polyether and 10 to 99.99 weight% of component (2), preferably 0.05 to 80 weight% of component (1) silicone polyether and 20 to 99.95 weight% of component (2), more preferably 0.1 to 60 weight% of component (1) silicone polyether and 40 to 99.9 weight% of component (2).

[0094] In one embodiment of the present invention, the aforementioned composition may be a self-dispersing system comprising component (1) silicone polyether and component (2), in particular an emulsion comprising the same. As used herein, "self-dispersing system" refers to a dispersion or suspension of component (1) silicone polyether and component (2) in an emulsifier, water, or an organic solvent, such as an alkanol, such as ethanol or glycerin, or a non-solvent liquid carrier. The term "emulsion" includes a simple direct emulsion (oil in water), a reverse emulsion (water in oil), or a multiple emulsion (e.g., oil in water, oil in water).

[0095] The emulsion comprises a component (1) silicon polyether, comprising silicon polyether A represented by chemical formula I and silicon polyether B represented by chemical formula II, a component (2), an emulsifier (4), and water (5).

[0096] The content of component (1) silicone polyether and component (2) in the emulsion is not particularly limited, but suitably 20 to 60 weight%, preferably 30 to 55 weight%, more preferably 35 to 50 weight% based on 100% of the total weight of the emulsion.

[0097] The emulsifier (4) may be any emulsifier used to produce a previously used silane dispersion, such as anionic, cationic, nonionic, and amphoteric surfactants, or a mixture thereof, preferably a nonionic emulsifier. Examples of suitable nonionic emulsifiers include fatty alcohol polyoxyethylene ethers, fatty acid polyoxyethylene esters, ethylene oxide-propylene oxide copolymers, sorbitan fatty acid esters, ethoxylated sorbitan fatty acid esters, pentaerythritol fatty acid esters, glycerol fatty acid esters, and mixtures thereof. Preferably, the fatty alcohol polyoxyethylene ethers, fatty acid polyoxyethylene esters, sorbitan fatty acid esters, ethoxylated sorbitan fatty acid esters, and mixtures thereof have 10 to 20 carbon atoms. The nonionic emulsifier preferably comprises at least one nonionic emulsifier having an HLB value of 12 or higher.

[0098] The emulsifier is preferably used in a minimum amount to stabilize the emulsion, for example, 0.01 to 5 weight percent based on 100% of the total weight of the emulsion, or even 0.1 to 3 weight percent, preferably 0.1 to 2 weight percent, more preferably 0.1 to 1 weight percent, because it can reduce the strength of the hardened mineral building material.

[0099] The content of water (5) in the emulsion is not particularly limited and is suitably 35% to 75% by weight, preferably 40% to 65% by weight, more preferably 45% to 60% by weight, based on 100% of the total weight of the emulsion.

[0100] The emulsion may further include appropriate amounts of other optional components (6), such as a pH adjuster, antifreeze, and preservative, as long as this does not impair the realization of the invention.

[0101] An emulsion containing the aforementioned composition can be prepared by a method known in the art.

[0102] The aforementioned emulsion comprises 20 to 60 weight% of component (1) silicone polyether and component (2), 35 to 75 weight% water and 0.1 to 5 weight% emulsifier; preferably 30 to 55 weight% of component (1) silicone polyether and component (2), 40 to 65 weight% water and 0.1 to 5 weight% emulsifier; more preferably 35 to 50 weight% of component (1) silicone polyether and component (2), 45 to 60 weight% water and 0.1 to 5 weight% emulsifier.

[0103] In one embodiment of the present invention, component (1) silicon polyether and component (2) are used in the form of an emulsion for mineral building materials. The emulsion is 0.001 to 10 weight%, preferably 0.01 to 5 weight%, based on the total dry material of the mineral building material, e.g., 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, based on the total dry material of the mineral building material. 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5 weight%, preferably 0.01 to 1 weight%, e.g. 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.3, 0.35, 0.4, 0.45, 0.5, It is mixed into mineral building materials with an input amount of 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, and 1 weight%.

[0104] In one embodiment of the present invention, component (1) silicon polyether and component (2) may also be adsorbed onto a solid carrier and used in powder form for mineral building materials. Considering the difficulty of directly adsorbing component (1) silicon polyether and component (2), comprising silicon polyether A represented by formula I and silicon polyether B represented by formula II, onto a mineral building material, it is preferable to first adsorb them onto a solid carrier (7) and then mix them into the mineral building material. Suitable solid carrier (7) is a porous material that generally includes, but is not limited to, silica fume, silica, alumina, activated carbon, talc, zeolite powder, calcium carbonate, calcium silicate, diatomite, clay, starch, and cellulose ether.

[0105] The powder described above comprises component (1) silicon polyether and component (2) and a solid carrier (7). The content of component (1) silicon polyether and component (2) in the powder is not particularly limited and is suitably 10% to 50% by weight, preferably 15% to 40% by weight, and more preferably 20% to 30% by weight, based on 100% by weight of the total weight of the powder.

[0106] The content of the solid carrier (7) in the powder is not particularly limited and is suitably 50% to 90% by weight, preferably 60% to 85% by weight, more preferably 70% to 80% by weight, based on 100% by weight of the total weight of the powder.

[0107] The powder described above has an amount of water of less than 1 weight%, preferably less than 0.5 weight% or less than 0.2 weight%, more preferably 0.1 weight% or 0.01 weight%, based on 100 weight% of the total weight of the powder.

[0108] The powder described above comprises 10 to 50 weight% of component (1) silicon polyether and component (2) and 50 to 90 weight% of a solid carrier; preferably 15 to 45 weight% of component (1) silicon polyether and component (2) and 55 to 85 weight% of a solid carrier; more preferably 20 to 40 weight% of component (1) silicon polyether and component (2) and 60 to 80 weight% of a solid carrier.

[0109] In one embodiment of the present invention, the composition is used in powder form for mineral building materials. The powder is present in an amount of 0.001 to 10 weight%, preferably 0.01 to 5 weight%, based on the total dry material of the mineral building material, e.g., 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3, 3.1, 3.2, 3.3, based on the total dry material of the mineral building material. 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5 weight%, more preferably 0.01 to 1 weight%, e.g. 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.2, 0.21, 0.22, 0.23, 0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 0.3, 0.35, 0.4, 0.45, 0.5, It is mixed with input amounts of 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, and 1 weight%.

[0110] A third aspect of the present invention discloses a mineral building material comprising a composition of the present invention that exhibits improved fluidity and higher density before curing, as well as better surface quality after curing, and is easy to manufacture and apply. Preferably, the mineral building material is a grouting material or a self-leveling composition, more preferably a self-leveling composition.

[0111] In one embodiment of the present invention, the mineral building material, self-leveling composition, or grouting material is

[0112] Antifoaming agent: Composition of the present invention;

[0113] A binder, preferably one or more of Portland cement, gypsum, or high alumina cement;

[0114] One or more of a filler, preferably calcium sulfate, its hydrate, sand, and / or ground calcium carbonate;

[0115] Selective curing accelerator, preferably one or more of lithium carbonate, lithium sulfate, etc.;

[0116] Selective curing retardant, preferably one or more of citric acid, tartaric acid, etc.;

[0117] Selective plasticizer, preferably cellulose ether, such as hydroxypropyl methylcellulose ether, etc.;

[0118] Selective water-reducing agent, preferably polycarboxylate, etc.;

[0119] Optional additive, preferably redispersible powder;

[0120] Selective stabilizers, etc.

[0121] Includes

[0122] Furthermore, the present invention provides a method for producing mineral building materials, wherein the composition of the present invention is mixed with a binder, preferably Portland cement, gypsum and / or alumina cement, and optionally one or more additional components selected from fillers, additives, hardening accelerators, hardening retardants, plasticizers, water-reducing agents, etc.

[0123] The composition of the present invention comprises 0.0001 to 5 weight%, preferably 0.001 to 2 weight%, based on the total dry material of the mineral building material, e.g., 0.001, 0.002, 0.003, 0.004, 0.005, 0.006, 0.007, 0.008, 0.009, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, based on the total dry material of the mineral building material. 1.9 weight%, more preferably 0.001 to 1 weight%, e.g. 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1 weight% of the active ingredient is mixed into a mineral building material. The active ingredient contains component (1) silicon polyether and component (2), wherein component (1) silicon polyether comprises silicon polyether A represented by chemical formula I and silicon polyether B represented by chemical formula II. Preferably, the active ingredient comprises at least 95% by weight, even at least 98% by weight, and at least 99% by weight of component (1) silicon polyether and component (2) based on the total weight of the active ingredient.

[0124] When component (1) silicon polyether, comprising silicon polyether A represented by chemical formula I and silicon polyether B represented by chemical formula II, and component (2) are used as a defoaming agent in powder form, the input amount is calculated as the mass percentage of component (1) silicon polyether and component (2) relative to the total dry material of the mineral building material.

[0125] The method of adding to mineral building materials is not particularly limited, as long as the aforementioned composition as an antifoaming agent is well mixed into the mineral building materials prior to curing and solidification. The antifoaming agent may be incorporated during the manufacturing or post-processing process of the mineral building materials, or during the post-processing process of the raw materials for manufacturing the mineral building materials. The antifoaming agent may be incorporated into the method of manufacturing a dry mixture or a fluid mixture containing a binder, specifically, it may be added to the method of manufacturing paste, mortar, grout, or concrete; furthermore, the antifoaming agent may also be incorporated into the mixing or post-processing process of the raw materials for manufacturing the mineral building materials.

[0126] In an embodiment of the present invention, after the defoaming agent is added to a method for preparing a fluid mixture, the well-mixed fluid mixture is converted into a solid or nearly solid state through a curing and solidification process. In the case of a defoaming agent in the form of an emulsion that can be mixed with water, the resulting wet mixture is added to the dry material of the mineral building material and mixed well. In the case of a defoaming agent in the form of a powder, it can be mixed into the dry material of the mineral building material, and then water is added and mixed well.

[0127] A fourth aspect of the present invention discloses the use of the aforementioned composition as a storage-resistant defoaming agent in mineral building materials, particularly in self-leveling compositions or grouting materials. The defoaming agent does not exhibit any identifiable difference in use in mineral building materials even after being stored at 50°C for more than 2 weeks, 6 months, or 1 year. Specific details for implementing the invention

[0128] Silicon polyether 1: Belongs to the aforementioned silicon polyether A of chemical formula I, n=0, m=15; a=b=1, viscosity 650 mm 2 / s, 25℃ (measured according to DIN 51562-1), as indicated by the chemical formula V (99% purity).

[0129]

[0130] Silicon polyether 2: A mixture comprising silicon polyethers of n=4.5, m=70 and n=8, m=42, belonging to the aforementioned silicon polyether B of Formula II, with a molar ratio of 2:1 as indicated by Formula VI, and a viscosity of 800 mm 2 / s, 25℃ (measured according to DIN 51562-1) (purity 99%).

[0131]

[0132] The above material was supplied by Wacker Chemical.

[0133] Polyoxyalkylene: Polypropylene glycol (PPG), molecular weight 2000 g / mol.

[0134] A defoaming composition was prepared by mixing the aforementioned silicone polyether and / or polyoxyalkylene, and the form was an oil mixture, emulsion, or powder, but was not limited thereto.

[0135] Preparation of vesicle powder:

[0136] Silicone polyether 1, silicone polyether 2 and / or polyoxyalkylene were added to a container in batches according to the ratios in Table 2 while stirring at a stirring speed of 400 rpm, and mixed for 10 minutes to obtain a homogeneous mixture.

[0137] 75 g of silica fume was added to a container while stirring at 300 rpm, then 25 g of the above mixture was added to the container within 2 minutes, and the mixture was dispersed by continuing stirring at 300 rpm for 8 minutes to obtain a powdered mixture. After stirring, the powdered mixture was sieved through a 40-mesh sieve to obtain a free-flowing powder as a standard defoaming powder.

[0138] Hot-stored foam powder was obtained by storing standard foam powder at 50°C under atmospheric pressure for 2 weeks.

[0139]

[0140] Preparation of a self-leveling composition:

[0141] Based on Table 2, the standard defoaming powder or hot-stored defoaming powder of Table 1 was mixed with powdered self-leveling cement to produce the self-leveling compositions of the examples and comparative examples.

[0142]

[0143] Manufacture of Mortar:

[0144] 95 g of water and 400 g of the above self-leveling composition were added to a mixer, and mixing was started at a low speed (300 rpm) for 60 seconds and stopped for 30 seconds. Next, mixing was done at a high mixing speed (600 rpm) for 60 seconds and stopped for 60 seconds. Next, mixing was done at a high mixing speed (600 rpm) for 15 seconds and stopped for 5 minutes to obtain mortar.

[0145] Determination of mortar fluidity based on JC / T 985-2017 7.3.

[0146] Mortar was introduced into a flow test sleeve (a metal sleeve with a diameter of 30 mm and a length of 50 mm) to fill it, and excess slurry was scraped off from the top of the test sleeve. The filled test sleeve was lifted to a height of approximately 50 mm to 100 mm within 2 seconds and held for 10 to 15 seconds to allow the mortar to flow. After 4 minutes, the diameter was measured in two mutually perpendicular directions, and the arithmetic mean was taken as the reading.

[0147] Determination of mortar density by the pycnometer method with reference to GB / T 6750-2007.

[0148] "Standard" refers to mortar or self-leveling slabs manufactured by adding standard defoaming powder, and "hot-storage" refers to mortar or self-leveling slabs manufactured by adding hot-storage defoaming powder.

[0149] Density drop (%) = (Standard_density - Hot-Storage_density) / Standard_density

[0150]

[0151] As can be seen from Table 3, the mortar of Example 1 had a higher density and better fluidity. Otherwise, the defoaming powder of Example 1 had excellent storage resistance, and the density of the mortar of Example 1 was only 0.49%.

[0152] Manufacture of self-leveling slabs:

[0153] The above mortar was poured into a test mold assembled with foam tape and rolled back and forth 5 times with a foam roller to obtain a flat slab measuring 20 cm x 10 cm x 1 cm. After a setting time of 24 hours, a self-leveling slab was obtained.

[0154] The self-leveling slab surface was visually evaluated; the results are shown in Table 4.

[0155] Surface quality grade criteria:

[0156] 1: Visually, if the surface is uneven and the defect area exceeds 50% of the surface area;

[0157] 2: Visually, the surface is visually smooth and the defect area is less than 30% of the surface area;

[0158] 3: Visually, the surface is smooth and the defect area is less than 5% of the surface area.

[0159]

[0160] As can be seen from Table 4, the self-leveling slab of Example 1 had high surface quality, and the defoaming powder of Example 1 was also not affected by hot storage when used in the self-leveling slab.

Claims

Claim 1 A composition comprising component (1) a silicon polyether and component (2), wherein component (1) a silicon polyether comprises silicon polyether A represented by chemical formula I and silicon polyether B represented by chemical formula II; In the chemical formula, R is a hydrocarbon group having 1 to 18 carbon atoms; preferably a hydrocarbon group having 1 to 12 carbon atoms, for example, independently selected from methyl, ethyl, phenyl, benzyl, more preferably methyl and ethyl; and R' is R or P. P=R 1 -(C3H6O) z R 2 Selected independently from; R'' is R or G. G=R 1 -[(C2H4O) x (C3H6O) y ] R 2 Selected independently from;R 1 = -(CH2) p O-, p=2 to 10, preferably p is 2, 3, 4, 5, 6, more preferably 3 or 4 and R 2 is selected from hydrogen, alkyl, arylalkyl, aryl, or RC(O)-, preferably hydrogen, methyl, and acetyl, more preferably hydrogen or methyl; a, b, c, and d are integers independently selected from 1 to 3; m is an integer selected from 1 to 150, preferably 1 to 120, more preferably 5 to 100; n is an integer selected from 0 to 50, preferably 0 to 40, more preferably 0 to 30; i is an integer selected from 1 to 150, preferably 5 to 120, more preferably 10 to 100; j is an integer selected from 0 to 50, preferably 1 to 40, more preferably 1 to 30; x is an integer selected from 1 to 60, preferably 5 to 40, more preferably 10 to 30; and y is 0 to 60, preferably 1 to 40, more preferably 1 The composition is an integer selected from 1 to 30; z is an integer selected from 1 to 60, preferably 10 to 40, more preferably 15 to 40; provided that at least one R' is P when n=0 and at least one R'' is G when j=0; and the component (2) is a composition selected from one or more of mineral oil, vegetable oil, silicone oil, fatty alcohol, and polyoxyalkylene. Claim 2 In claim 1, silicon polyether A is represented by the chemical formula III; A composition in which, in the chemical formula, R, P, a, b, and m are as defined above; preferably, a=b=1; and more preferably, m is an integer selected from 10 to 50. Claim 3 In claim 1 or 2, silicon polyether B is represented by chemical formula IV; A composition in which, in the chemical formula, R, G, i, and j are as defined above, and j is not 0; preferably, j is an integer selected from 3 to 20, and more preferably, i is an integer selected from 30 to 100. Claim 4 In any one of paragraphs 1 to 3, 50 to 10,000 mm when measured according to DIN 51562-1 2 / s, 25℃, preferably 100 to 5000 mm 2 / s, 25℃, more preferably 300 to 2500 mm 2 The aforementioned silicone polyether A having a viscosity of / s, 25°C, and / or 50 to 10,000 mm 2 / s, 25℃, preferably 100 to 5000 mm 2 / s, 25℃, more preferably 300 to 2500 mm 2 A composition comprising silicone polyether B having a viscosity of / s, 25℃. Claim 5 A composition according to any one of claims 1 to 4, wherein the component (2) is selected from one or more of mineral oil, fatty alcohol, polyoxyalkylene, preferably polyoxyalkylene, more preferably polypropylene glycol. Claim 6 In any one of claims 1 to 5, the component (1) silicone polyether comprises, based on 100 weight% of the total component (1) silicone polyether, 20 to 90 weight% silicone polyether A and 10 to 80 weight% silicone polyether B, preferably 40 to 80 weight% silicone polyether A and 20 to 60 weight% silicone polyether B, more preferably 50 to 80 weight% silicone polyether A and 20 to 50 weight% silicone polyether B; and / or the weight ratio of silicone polyether A to silicone polyether B is selected from 0.01 to 100, preferably 0.1 to 10, more preferably 0.5 to 10; and / or the total amount of silicon polyether A and silicon polyether B is greater than 70 weight%, preferably greater than 80 weight%, more preferably greater than 90 weight% based on 100 weight% of the total component (1) silicon polyether. Claim 7 A composition according to any one of claims 1 to 6, wherein the weight ratio of component (1) silicone polyether to component (2) is selected from 0.001 to 50, preferably 0.005 to 10, more preferably 0.01 to 1. Claim 8 A composition according to any one of claims 1 to 7, comprising, based on 100 weight% of the total composition mass, 0.01 to 90 weight% of component (1) silicon polyether and 10 to 99.99 weight% of component (2), preferably 0.05 to 80 weight% of component (1) silicon polyether and 20 to 99.95 weight% of component (2), more preferably 0.1 to 60 weight% of component (1) silicon polyether and 40 to 99.9 weight% of component (2). Claim 9 A powder comprising 10 to 50 weight% of a composition according to any one of claims 1 to 8 and 50 to 90 weight% of a solid carrier based on 100 weight% of the total powder mass; preferably 15 to 45 weight% of a composition according to any one of claims 1 to 8 and 55 to 85 weight% of a solid carrier; more preferably 20 to 40 weight% of a composition according to any one of claims 1 to 8 and 60 to 80 weight% of a solid carrier. Claim 10 An emulsion comprising, based on 100 weight% of the total emulsion mass, 20 to 60 weight% of a composition according to any one of claims 1 to 8, 35 to 75 weight% of water, and 0.1 to 5 weight% of an emulsifier; preferably, 30 to 55 weight% of a composition according to any one of claims 1 to 8, 40 to 65 weight% of water, and 0.1 to 5 weight% of an emulsifier; more preferably, 35 to 50 weight% of a composition according to any one of claims 1 to 8, 45 to 60 weight% of water, and 0.1 to 5 weight% of an emulsifier. Claim 11 Use of a composition according to any one of claims 1 to 8, the powder of claim 9, or the emulsion of claim 10 in mineral building materials, preferably grouting materials or self-levelling compositions. Claim 12 A mineral building material comprising a composition according to any one of claims 1 to 8, the powder of claim 9, or the emulsion of claim 10. Claim 13 In paragraph 12, a mineral building material containing a binder selected from one or more of Portland cement, gypsum, or alumina cement.

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