Diamond Shamrock Corporation

Diamond Shamrock Chemicals Company

The United States of America As Represented by the Department of Energy

Alphonso W Marcellis

Grannis S Johnson

Joseph P Fleming

Reuben H Grinstein

Jose L Villa

Joseph V Sinka

Chester J Grelecki

Aqueous carbonaceous slurries having reduced viscosity, a stabilized network of carbonaceous material in water and improved pumpability are obtained by having present as a dispersant one or more particular water soluble sulfomethylated hydroxy aromatic products. Examples of dispersants are the water soluble sulfomethylation product of the water soluble residue obtained from resorcinol production by the alkaline fusion method, sulfomethylated phenol and sulfomethylated bisphenol A.

Anionic polyhydroxy polyphenyl compounds as dispersants for aqueous

Superplasticizers for cementitious compositions are produced from a raw material mixture of (1) naphthalenesulfonic acid formaldehyde condensate and (2) free sulfuric acid using a 1-step process or a 2-step process. In the 1-step process, the mixture is neutralized with a zinc compound such as zinc oxide to a pH of about 2 to obtain a superplasticizer mixture of the free acid of the naphthalenesulfonic acid formaldehyde condensate and zinc sulfate. In the 2-step process, the mixture is first neutralized with a zinc compound such as zinc oxide to a pH of about 2 and then with a base such as sodium hydroxide to a pH of about 6 to obtain a superplasticizer mixture of the sodium salt of the naphthalenesulfonic acid formaldehyde condensate and zinc sulfate. These superplasticizer mixtures are superior to a low salt content commercial sodium salt of a naphthalenesulfonic acid formaldehyde condensate where sodium sulfate content has been reduced by lime treatment.

Superplasticizers for cementitious compositions

A superplasticizer with improved water reducing properties for cement, cement slurries, mortar, grout and concrete is Penacolite Resin RM-441 as is or sulfonated, sulfomethylated, sulfonated and condensed with formaldehyde, sulfomethylated and condensed with formaldehyde, condensed with formaldehyde, co-condensed with ligninsulfonates and formaldehyde or co-condensed with naphthalenesulfonic acid formaldehyde condensate and formaldehyde. These materials can be used alone or in combination with salts of aromatic sulfonic acid formaldehyde condensates.

Polyhydroxy polyphenyl compounds as additives for cementitious materials

Additives for cementitious compositions which are mixtures of (1) salts such as the sodium salt of a condensation product of naphthalenesulfonic acid and formaldehyde and (2) zinc salts increase compressive strengths and reduce water contents of hardened cementitious compositions. Useful additives include mixtures of from 65% to about 75% by weight of a sodium salt of a condensation product of naphthalenesulfonic acid and formaldehyde and from about 25 to about 35% by weight of a zinc salt such as zinc sulfate, zinc chloride, zinc acetate or the like. Effective amounts of these additives are added to cementitious compositions to improve their properties. Addition of effective amounts of these mixtures in cementitious strengths from 25 to 30% greater over those obtained with a sodium salt of the condensation product.

Additives for cementitious compositions

Superplasticizers with improved water reducing properties for cement, cement slurries, mortar, grout and concrete are formed from synergistic mixtures of (1) aromatic sulfonic acid formaldehyde condensates, such as the sodium salt of naphthalene sulfonic acid formaldehyde condensate and (2) hydroxy aromatic compounds such as pyrogallol and gallic acid. Addition of these mixtures to the same cementitious materials also results in improved compressive strength.

Additives for cementitious materials

1. A novel composition of matter comprising a mixture of pentaborane and s (difluoroamino) fluoromethane.

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Boonton, NJ, United States of America

Alphonso W Marcellis