Aqueous organopolysiloxane emulsions

Details Aqueous organopolysiloxane emulsions Aqueous organopolysiloxane emulsions

1987-02-27

1988-07-12

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524501, 524506, 524730, 524731, 10628711, 10628714, 10628716, C08K 524

Patent

active

047571063

ABSTRACT:
Aqueous emulsions of (A) an organopolysiloxane comprising aliphatic radicals that are bonded to silicon via oxygen which have a molecular weight of at least 620 g/mol, and (B) an emulsifier containing a salt of a water-soluble organic or inorganic acid and a polysiloxane which contains siloxane units having monovalent SiC-bonded radicals with basic nitrogen, in which the basic nitrogen is present in an amount of at least 0.5 percent by weight based on the weight of the polysiloxane, and not more than 5 percent by weight of a water-soluble solvent or octanols, based on the weight of the emulsifier (B).
These emulsions may be used to impart hydrophobic properties to mineral substances by applying the emulsions to the mineral substances after they have been molded. These emulsions may also be used to impart hydrophobic properties to inorganic binding agents or they may be used as binding agents for inorganic fibrous materials or as binding agents in aqueous paints.

REFERENCES:
patent: 4288356 (1981-09-01), Huebner et al.
patent: 4657959 (1987-04-01), Bryan et al.
patent: 4661551 (1987-04-01), Mayer et al.

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