Sulfo-containing phenol-formaldehyde condensates

Details Sulfo-containing phenol-formaldehyde condensates Sulfo-containing phenol-formaldehyde condensates

1975-04-30

1978-03-14

Hoke, V. P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 293, 260 38, 260 51R, C08G 828

Patent

active

040790401

ABSTRACT:
Spreadability and/or strength of water-setting inorganic bonding compositions are improved by incorporating in them a water-soluble condensation product of formaldehyde with a diphenol ##STR1## The condensation can also take place in the presence of a water-soluble sulfite, a water-soluble sulfamate, a water-soluble pyrosulfite, a phenol sulfonic acid or a naphthalene sulfonic acid.

REFERENCES:
patent: B465955 (1976-02-01), Schaupp
patent: 2357798 (1944-09-01), Neiderhauser et al.
patent: 2621164 (1952-12-01), Nagy
patent: 3065039 (1962-11-01), Komarek
patent: 3221079 (1965-11-01), Harris
patent: 3502610 (1970-03-01), Thompson
patent: 3640932 (1972-02-01), Schnur
patent: 3644269 (1972-02-01), Hoyt et al.
patent: 3931083 (1976-01-01), Sasaki et al.

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