Modifying mortars of inorganic binding agents with alkylated sul

Details Modifying mortars of inorganic binding agents with alkylated sul Modifying mortars of inorganic binding agents with alkylated sul

1980-08-06

1982-05-18

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 97, 106109, 106111, 106315, C04B 735

Patent

active

043303340

ABSTRACT:
In a mortar comprising an inorganic binder, water and a sulphonated phenol condensation product modifier therefor, the improvement wherein said condensation product comprises a formaldehyde condensation product of a phenol wherein at least about 40% of the phenolic OH groups are etherified with an alkylating agent, the condensation product being present in about 0.05 to 5% by weight of the binder. Advantageously the condensation product is of the formula ##STR1## in which R is H, C.sub.1-6 -alkyl, C.sub.1-12 -aralkyl, C.sub.1-4 -monohydroxy or dihydroxy alkyl, of C.sub.3-4 -hydroxy chloralkyl, less than 40% of the R groups being H,

REFERENCES:
patent: 4125410 (1978-11-01), Natsuume
patent: 4238236 (1980-12-01), Falcoz et al.
patent: 4247334 (1981-01-01), Falcoz et al.

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