aqueous based adhesive for industrial applications, process for producing aqueous based adhesives and use of aqueous based adhesive

摘要

Aqueous Base Adhesive for Industrial Applications, Process for Producing Aqueous Base Adhesives and Use of Aqueous Base Adhesive in water with water, whereby the weight ratio of the water-redispersible polymer powder to the water-soluble polymer powder is from 0.001: 1 to 100: 1 and the aqueous-based adhesive has a setting speed of less than 300 seconds when measured with a layer of 36 sym thickness at 23 198 C and 50% relative humidity and 385 sym thickness cardboard panels with a weight of 275 sym 3 g / m ^ 2 ^ and Cobb values on one side of 43 g / min / m ^ 2 ^ and 27 g / min / m ^ 2 ^ on the other side, the adhesive has a solids content of about 7.5 to 70%. by weight and a Brookfield viscosity at 23Â ° C at 20rpm, measured according to standard ASTM D1084 from about 500 to 10,000 mPas. An aqueous based industrial material has the ability to attach a low surface tension substrate to a cellulosic substrate, in particular with a weight ratio of water redispersible polymer powder to a water soluble polymer powder of about 0.5 : 1 to 100: 1 thus can replace conventional aqueous adhesives based on synthetic polymer dispersions. The benefits of the invention are mainly such as faster set speeds and increased machine speeds, logistical advantages due to powder rather than liquid handling, leading to, for example, extended life, no water transport and being an adhesive containing Low VOC environmentally friendly.