Mortar of inorganic binder and formaldehyde condensation product

Details Mortar of inorganic binder and formaldehyde condensation product Mortar of inorganic binder and formaldehyde condensation product

1974-05-01

1976-12-14

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 90, 260 49, C08L 6100

Patent

active

039975029

ABSTRACT:
A mortar comprising an inorganic binder such as anhydrite, gypsum or cement is rendered more flowable and processible by incorporating therein a condensation product of formaldehyde with a sulfonated aromatic ether, imine or sulfone, e.g. preferably about 0.3 to 2% by weight of the binder of the condensation product of formaldehyde with sulfonated ditolyl ether. There may also be present an auxiliary such as FeSO.sub.4 . 7 H.sub.2 O, Al.sub.2 (SO.sub.4).sub.3. 18 H.sub.2 O or KA1(SO.sub.4).sub.2, as well as an additive such as a plasticizer, hardening accelerator, retarder, air-entraining agent, thickener, activator or anti-foam agent, and/or an aggregate such as sand, gravel, perlite, pumice or foamed plastic beads.

REFERENCES:
patent: 2315951 (1943-04-01), Fox et al.
patent: 3240736 (1966-03-01), Beckwith
patent: 3720529 (1973-03-01), Jordon
patent: 3788868 (1974-01-01), Kitsuda et al.

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