Back to results
US 2015/0284615 A1Published application
Low-voc dialkyl-functional alkoxysiloxanes, processes and use thereof as hydrophobizing impregnating agents for mineral building materials
AssigneeEvonik Industries AG
InventorsChristopher STUDTE, Spomenko Ljesic
Life of this patent
Estimating the term…
Abstract
Low-VOC compositions of dialkyl-functional siloxane oligomers, especially of methylalkylalkoxysiloxanes, and processes for producing them are provided. Additionally methods for hydrophobizing porous mineral substrates employing the low-VOC compositions, in the course of which few or no volatile organic compounds are released, are provided.
Claims21
A composition comprising:
- a dialkyl-functional siloxane oligomer of formula (I):
- and, optionally,
- a dialkyl-functional cyclic siloxane oligomer of formula (II):
- wherein
- each R′ is independently a linear, branched or cyclic alkyl group having 3 to 8 C atoms,
- each R″ is independently an alkyl group having 1 to 3 C atoms,
- each R is independently hydrogen or an alkyl group having 1 to 3 C atoms,
- n is an integer from 0 to 10 and
- m is an integer from 2 to 10.
6 more elements
Dependencies are inferred from the claim text.