Huels Troisdorf Ag

Huels Aktiengesellschaft

Hartmut Muller

Hans Huber

Klaus Bruning

Hot melt adhesives with particularly high setting rates are obtained from the reaction products of polyisocyanates and hybroxypolyesters, the hydroxypolyester preferably being strictly aliphatic and containing at least 12 methylene groups in the polyester unit of diol and dicarboxylic acid.

Rapidly setting, moisture-curable hot melt adhesives and their use

Radiation-setting (meth)acrylate-functional polyesters prepared from base polyesters which are fluid at room temperature and have molecular weights of 1,000 or more as well as aliphatic side chains bound to the main chain by ester bridges and, in some cases, ether bridges, and in which a maximum of 90% of the original hydroxyl groups of the base polyester are functionalized, are usable for coatings and especially as adhesives free of solvents.

Radiation-curable macromers based on (meth)acrylate-functional

Pressure-sensitive adhesives composed of radiation-cured (meth)acrylic-functional polyesters are prepared from base polyesters, fluid at room temperature, which have molecular weights of 1,000 to 10,000 and branched main chain, and/or from new polyesters having aliphatic side chains bound by ester bridges or, in some cases, ether bridges to the main chain, followed by functionalization of a maximum of 90% of the original hydroxyl groups of the base polyesters by reaction with (meth)acrylate compounds, and crosslinked by electron beam or ultraviolet radiation in a thin coating on a support. The new pressure-sensitive adhesives have the property and the advantage of being cross-linkable by radiation without the use of solvents or diluents.

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Troisdorf, Germany

Hartmut Muller