Rheology control agent
AssigneeBYK-Chemie GmbH
InventorsChristiane Knappke-Bongartz, René Nagelsdiek, Sylvia Bühne, Kathrin Moellers, Verena Boeckmann
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Abstract
The invention relates to the use of a composition as rheology control agent comprising (A) silicate and (B) a polyethylenimine comprising the structure (I), wherein R1 is formula (I), or part of the polyethylenimine, and wherein R2 is H or an organic group, R3 is H or an organic group, with the proviso that one of R2 or R3 is H and wherein the polyethyleneimine has a weight average molecular weight Mw in the range of 40000 to 300000 g/mol before the reaction with the epoxide compound.
Claims20
A process of controlling rheology of a liquid preparation, the process comprising:
- adding a silicate (A) to the preparation, and
- adding a reaction product (B) to the preparation, the reaction product (B) obtained by reacting a polyethylenimine with at least one compound having at least one epoxide group, the reaction product (B) comprising structure (I)
- wherein R1 is H,
- or part of the polyethylenimine, and wherein R2 is H or an organic group, R3 is H or an organic group, with the proviso that one of R2 or R3 is HL and wherein the polyethyleneimine has a weight average molecular weight Mw in the range of 40000 to 300000 g/mol before the reaction with the at least one compound having at least one epoxide group.
(canceled)
(canceled)
A kit of parts comprising:
- at least one binder module and at least one crosslinking module, wherein one or more of the at least one binder module and the at least one crosslinking module comprises a silicate (A) and a reaction product (B), the reaction product (B) obtained by reacting a polyethylenimine with at least one compound having at least one epoxide group, the reaction product (B) comprising structure (I)
- wherein R1 is H,
- or part of the polyethylenimine, and wherein R2 is H or an organic group, R3 is H or an organic group, with the proviso that one of R2 or R3 is HL and wherein the polyethylenimine has a weight average molecular weight Mw in the range of 40000 to 300000 g/mol before the reaction with the at least one compound having at least one epoxide group.
A process comprising:
- applying a preparation to at least part of a surface of a three-dimensional article, wherein the preparation comprises at least one binder, a silicate (A), and a reaction product (B), the reaction product (B) obtained by reacting a polyethylenimine with at least one compound having at least one epoxide group, the reaction product (B) comprising structure (I)
- wherein R1 is H,
- or part of the polyethylenimine, and wherein R2 is H or an organic group, R3 is H or an organic group, with the proviso that one of R2 or R3 is HL and wherein the polyethyleneimine has a weight average molecular weight Mw in the range of 40000 to 300000 g/mol before the reaction with the at least one compound having at least one epoxide group, wherein the preparation optionally further comprises at least one crosslinking agent, and
- optionally curing the preparation.
A three-dimensional article comprising a preparation, wherein the preparation comprises at least one binder, a silicate (A), and a reaction product (B), the reaction product (B) obtained by reacting a polyethylenimine with at least one compound having at least one epoxide group, the reaction product (B) comprising structure (I)
- wherein R1 is H,
- or part of the polyethylenimine, and
- wherein R2 is H or an organic group, R3 is H or an organic group, with the proviso that one of R2 or R3 is HL and wherein the polyethyleneimine has a weight average molecular weight Mw in the range of 40000 to 300000 g/mol before the reaction with the epoxide compound, wherein the preparation optionally further comprises at least one crosslinking agent.
Dependencies are inferred from the claim text.