Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Process of storage or protection
Patent
1985-11-15
1987-04-07
Lovering, Richard D.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Process of storage or protection
252383, 524 8, 524 7, 427421, B01J 1118, A23L 100
Patent
active
046560050
ABSTRACT:
A protective product for treating fresh concrete or mortar. The products are a mixture of (a) an aqueous dispersion A of a film-forming synthetic polymer (the synthetic polymer is compatible with fresh concrete or mortar) having little or no permeability to water vapor with (b) at least one coagulant for the film-forming synthetic polymer when in the presence of calcium ions. The coagulant is introduced in the form of an aqueous or aqueous alcoholic solution and/or by means of an aqueous wax emulsion and/or by means of an aqueous dispersion B of a synthetic polymer which is slightly permeable or impermeable to water. The aqueous dispersion B is prepared by polymerization in the presence of the coagulant. When applied by spraying to the surface of fresh mortar, the products form a continuous waterproof film, which is readily removed by peeling.
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Lovering Richard D.
Rhone-Poulenc Specialities Chimiques
Wallen T. J.
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