PROCEDIMIENTO PARA PREPARAR COMPOSICIONES ADHESIVAS.

摘要

1515289 Aqueous water - glass/aminoplast adhesive compositions IMPERIAL CHEMICAL INDUSTRIES Ltd 10 July 1975 [30 July 1974] 33579/74 Heading C3R A liquid composition contains in a weight ratio of 80 : 20 to 20 : 80 an adhesive aqueous solution of a urea- and/or melamine-formaldehyde resin and an adhesive aqueous sodium silicate solution. A resin curing catalyst may be added. In the examples a 50 : 50 mixture of a soluble UF resin and aqueous sodium silicate is used to bond various substrates together, or to size concrete.