CN-121986079-A - Amino acid additives and related compositions and methods

Abstract

The amino acid additive may comprise an amino acid, optionally a polysaccharide-based polymer, optionally a efflorescence reducing additive, and optionally a filler. The amino acid additives may be used in building formulations (e.g., cement, mortar, stucco, etc.), redispersible polymer powder formulations, and polymer dispersions. Amino acid additives can increase the open time, increase wettability, and/or increase processing time of the building formulation.

Inventors

• T. Oper
• P. Emenge
• E. BILLER
• S. Shitude

Assignees

• 人造丝瑞士股份公司

Dates

Publication Date

20260505

Application Date

20240906

Priority Date

20230907

Claims (20)

1. 1. A building formulation comprising: An inorganic binder; redispersible polymer powder or polymer dispersion, and 0.01 Wt% to 2wt% of an amino acid additive comprising an amino acid based on the total dry weight of the building formulation; Wherein the building formulation has an adhesive tensile strength (EN 12004, after curing at 23 ℃ C.+ -2 ℃ C. And 50% + -5% relative humidity for 28 days) of greater than 0.5N/mm 2 after 30 minutes open time, and Wherein the adhesive tensile strength after 30 minutes open time is at least 10% greater relative to a comparable building formulation without the amino acid.
2. 2. The construction formulation of claim 1, wherein the amino acid is present at 0.01 wt% to 1 wt% based on the total dry weight of the construction formulation.
3. 3. The building formulation of any preceding claim, wherein the amino acid additive further comprises one or more of a polysaccharide-based polymer, a efflorescence reducing agent, a filler, and any combination thereof.
4. 4. The construction formulation of any preceding claim, wherein the amino acid additive comprises: 20 wt% to 100 wt% amino acid based on the total dry weight of the amino acid additive; 0 wt% to 80 wt% of a polysaccharide-based polymer based on the total dry weight of the amino acid additive; 0 wt% to 25% wt% of a weathering additive based on total dry weight of the amino acid additive, and 0Wt% to 80 wt% of a filler based on the total dry weight of the amino acid additive, wherein at least two of the polysaccharide-based polymer, the weathering-reducing additive and the filler are present.
5. 5. The construction formulation of any preceding claim, wherein the redispersible polymer is present in the construction formulation at 0.01 wt% to 25% wt% based on the total dry weight of the construction formulation.
6. 6. The construction formulation of any preceding claim, wherein the inorganic binder comprises one or more of a hydraulic setting binder, a latent hydraulic binder, a pozzolan binder, and a non-hydraulic binder.
7. 7. The construction formulation of any preceding claim, wherein the construction formulation is one of tile adhesives, thermal insulation mortars, leveling compounds, repair mortars, gypsum and/or lime and/or cement mortars, joint mortars, sealing mortars, leveling mortars, wallpaper mortars, parquet adhesives, powder coatings, waterproof mortars, films, external thermal insulation composite systems, and tile joint compound.
8. 8. The construction formulation of any preceding claim, further comprising a solvent and having a solids content of 30 wt% to 90 wt%.
9. 9. The construction formulation of any preceding claim, wherein the construction formulation has an adhesive tensile strength of 0.5N/mm 2 or greater after a 50 minute open time.
10. 10. The construction formulation of any preceding claim, wherein the inorganic binder is present at 5 wt% to 99 wt% based on the total dry weight of the construction formulation, and wherein the redispersible polymer powder is present at 0.01 wt% to 25 wt% based on the total dry weight of the construction formulation.
11. 11. The construction formulation of any preceding claim, further comprising 1 wt% to 95 wt% filler based on the total dry weight of the construction formulation.
12. 12. Use of an amino acid for increasing the open time of a building formulation, preferably wherein the amino acid is glycine.
13. 13. The use of claim 12 wherein the open time is increased by at least 5 minutes relative to a comparable building formulation without the amino acid.
14. 14. The use of claim 12 or 13, wherein the amino acid is present at 0.01 wt% to 1 wt% based on the total dry weight of the building formulation.
15. 15. Use of an amino acid for improving wetting of ceramic tiles with a construction formulation, preferably wherein the amino acid is glycine.
16. 16. The use of claim 15 wherein the wetting after 20 minutes open time is at least 5% greater surface area relative to a comparable building formulation without amino acids.
17. 17. The use of claim 15 or 16, wherein the amino acid is present at 0.01 wt% to 1 wt% based on the total dry weight of the building formulation.
18. 18. Use of an amino acid for increasing the processing time of a building formulation, preferably wherein the amino acid is glycine.
19. 19. The use of claim 18, wherein the processing time is increased by at least 5 minutes relative to a comparable building formulation without the amino acid.
20. 20. The use of claim 18 or 19, wherein the amino acid is present at 0.01 wt% to 1 wt% based on the total dry weight of the building formulation.

Description

Amino acid additives and related compositions and methods Cross Reference to Related Applications The present application claims priority to U.S. provisional patent application Ser. No. 63/581,125 entitled "AMINO ACID ADDITIVES AND RELATED COMPOSITIONS AND METHODS [ AMINO acid additives and related compositions and methods ]" and filed on 7 at 9 at 2023, the entire contents of which are incorporated herein by reference. Technical Field The present disclosure relates to amino acid additives and related compositions including, but not limited to, building formulations (e.g., cement, mortar, stucco, etc.), redispersible polymer powder formulations, and polymer dispersions. Methods related to amino acid additives and related compositions are also included in the present disclosure. Background Cement compositions are used in a variety of building compositions, like tile cements, mortars, plasters, etc. One important characteristic of a building composition for joining or adhering two structures (e.g., a base surface and a tile) together includes the length of time that the building composition can maintain adhesive strength after exposure to the environment. For example, after the building composition is applied to a surface (e.g., a floor or plank), ambient air may cause reactions at the exposed surface of the building composition that reduce the adhesive properties of the exposed building composition. Then, the structure (e.g., tile) applied thereto may not adhere to the building composition either, which weakens the overall structure of the adhered structure. Open time requirements are defined by european standard EN 12004 by the bond tensile strength values after a defined lay time (or open time). Open time is often reduced by the formation of an undesirable skin on the surface of the building formulation, which prevents satisfactory wetting of the tile even if the adhesive is still soft inside. Open time of at least 30 minutes to maintain a bond tensile strength greater than 0.5N/mm 2 typically indicates good building formulations, especially mortars for ceramic tile laying. While additives have been developed to improve open time, typically the additives adversely affect other characteristics such as early strength adhesion, sag resistance, and setting time. Disclosure of Invention The present disclosure relates to amino acid additives and related compositions including, but not limited to, building formulations (e.g., cement, mortar, stucco, etc.), redispersible polymer powder formulations, and polymer dispersions. Some embodiments of the present disclosure include a construction formulation comprising an inorganic binder, a redispersible polymer powder, and 0.01 wt% to 2 wt% amino acid additive comprising an amino acid based on the total dry weight of the construction formulation, wherein the construction formulation has an adhesive tensile strength after 30 minutes open time of greater than 0.5N/mm 2 (EN 12004 after curing for 28 days at 23 ± 2 ℃ and 50% ± 5% relative humidity). In some cases, the adhesive tensile strength after 30 minutes open time is at least 10% greater relative to a comparable building formulation that does not contain the amino acid. Some embodiments of the present disclosure include the use of amino acids to increase the open time of a building formulation (e.g., a cement-based tile adhesive). Some embodiments of the present disclosure include the use of amino acids to improve wetting of ceramic tiles with a construction formulation (e.g., a cement-based tile adhesive). Some embodiments of the present disclosure include the use of amino acids to increase the processing time of a construction formulation (e.g., cement render and/or cement-based render in a composite insulation system). Some embodiments of the present disclosure include a redispersible polymer powder formulation comprising from 90 wt% to 99.9 wt% of a redispersible polymer powder based on the total dry weight of the redispersible polymer powder formulation, and from 0.1 wt% to 10 wt% of an amino acid additive comprising an amino acid based on the total dry weight of the redispersible polymer powder formulation. Some embodiments of the present disclosure include a polymer dispersion formed by free radical emulsion polymerization comprising a polymer and from 0.1 wt% to 10 wt% of an amino acid additive. Some embodiments of the present disclosure include an amino acid additive comprising 20 wt% to 99 wt% amino acid based on the total dry weight of the amino acid additive, and 1% wt% to 80% wt% polysaccharide-based polymer based on the total dry weight of the amino acid additive. Detailed Description The present disclosure relates to amino acid additives and related compositions including, but not limited to, building formulations (e.g., cement, mortar, stucco, etc.), redispersible polymer powder formulations, and polymer dispersions. Methods related to amino acid additives and related compositions are also included in