US 12,030,811 B2
Rheology modifier for geopolymer foam formulations
Bernhard Feichtenschlager, Trostberg (DE); Maxim Pulkin, Trostberg (DE); Sarunas Turcinskas, Trostberg (DE); and Tatiana Mitkina, Trostberg (DE)
Assigned to SIKA TECHNOLOGY AG, Baar (CH)
Appl. No. 17/424,753
Filed by SIKA TECHNOLOGY AG, Baar (CH)
PCT Filed Jan. 29, 2020, PCT No. PCT/EP2020/052153
§ 371(c)(1), (2) Date Jul. 21, 2021,
PCT Pub. No. WO2020/157123, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 19154091 (EP), filed on Jan. 29, 2019.
Prior Publication US 2022/0119311 A1, Apr. 21, 2022
Int. Cl. C04B 24/26 (2006.01); C04B 28/26 (2006.01)
CPC C04B 24/2611 (2013.01) [C04B 28/26 (2013.01)] 16 Claims
 
1. A method of utilizing at least one cationic copolymer (i) as a rheology modifier in a geopolymer foam formulation, the method comprising:
mixing the at least one cationic copolymer (i) with components of the geopolymer foam formulation during the preparation thereof,
wherein the at least one cationic copolymer (i) comprises
a) 3 to 97 mol-% of a cationic structural unit of formula (I)

OG Complex Work Unit Chemistry
wherein
R1 in each occurrence is the same or different and represents hydrogen and/or methyl,
R2 in each occurrence is the same or different and is selected from the group consisting of

OG Complex Work Unit Chemistry
wherein
R3, R4, and R5 in each occurrence are the same or different and each independently represent hydrogen, an aliphatic hydrocarbon moiety having 1 to 20 carbon atoms, a cycloaliphatic hydrocarbon moiety having 5 to 8 carbon atoms, aryl having 6 to 14 carbon atoms and/or a polyethylene glycol (PEG) moiety,
X in each occurrence is the same or different and represents a halogen atom, a C1-C4-alkyl sulfate, a C1-C4-alkyl sulfonate, a C6-C14-(alkyl)aryl sulfonate and/or a monovalent equivalent of a polyvalent anion, which is selected from a sulfate, a disulfate, a diphosphate, a triphosphate, and/or a polyphosphate, and
n in each occurrence is the same or different and represents an integer from 0 to 10,
l in each occurrence is the same or different and represents an integer from 0 to 2,
m in each occurrence is the same or different and represents 0 or 1,
Y in each occurrence is the same or different and represents an absent group, oxygen, NH, and/or NR3, and
V in each occurrence is the same or different and represents —(CH2)x—,

OG Complex Work Unit Chemistry
wherein
x in each occurrence is the same or different and represents an integer from 1 to 6
b) 97 to 3 mol-% of a macromonomeric structural unit of formula (II)

OG Complex Work Unit Chemistry
wherein
R1, 1, m, Y, and V have the meanings given above,
R6 in each occurrence is the same or different and represents a polyoxyalkylene group of the following formula (IIa)

OG Complex Work Unit Chemistry
wherein
o in each occurrence is the same or different and represents an integer from 1 to 300, and
R3 has the meaning given above.