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and phenol, in the proportion of : , are reacted under acidic conditions, a resin (often known as a novalac resin) is produced, where n = to . with higher proportions of methanal and with the -position vacant, branching is possible, the methanal providing additional -ch - links. on heating a resin is...
depth: - mm ÿ uses / mm staples kw-trio sb kw-trio ÿ long reach stapler ÿ max sheets: ÿ throat depth: mm ÿ use staples / - / ÿ size: x x mm ÿ adjustable stapling depth: - mm ÿ heavy duty stapler ÿ max sheets: ÿ throat depth: mm ÿ use staples / - / ÿ size: x x mm ÿ sheet capacity: kinds of...
in europe. today, thanks to technological innovations and the constant development of new products, the admixtures for concrete line now offers solutions for the most varied range of construction needs, from large-scale projects to residential buildings. select a product category sub-category or select...
chemistry, american chemistry council, manufacture of poly(phenylethene) (polystyrene) poly(phenylethene) is manufactured from its monomer, phenylethene. phenylethene, in turn, is produced from benzene and ethene via ethylbenzene. there are thus three stages: a) the manufacture of ethylbenzene from...
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conduct sustainability un global compact responsible care integrated management system whistle-blower system contact contact location locations biesterfeld group client industries personal care & cleaning personal care & cleaning quality and know-how in the sectors of personal care and household cleaning...