Water-repellent gypsum mortar

Details Water-repellent gypsum mortar Water-repellent gypsum mortar

1982-02-09

1983-02-01

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106111, 106314, C04B 1100

Patent

active

043713998

ABSTRACT:
A water-repellent gypsum mortar contains an agent conferring hydrophobic properties, which is composed of (a) a fatty amine of the formula ##STR1## in which R.sub.1 is C.sub.8 -C.sub.22 -alkyl, C.sub.8 -C.sub.22 -alkenyl or C.sub.8 -C.sub.22 -alkylphenyl, R.sub.2 and R.sub.3 are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -hydroxyalkyl, phenyl, benzyl or a group of the formula --(CH.sub.2 CH.sub.2 O).sub.n H and n is a number from 0 to 4,

REFERENCES:
patent: 2791511 (1957-05-01), Lipkind et al.
patent: 4042409 (1977-08-01), Terada et al.

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