Abstract:
this invention relates to storage-stable, liquid, partially trimerized polyisocyanates having an NCO group content of 24 to 40 % by weight, and comprising 20 to 88 % by weight of toulene diisocyanate and 12 to 80 % by weight of a polyisocyanate of the diphenylmethane series. The present invention also relates to a process for the preparation of the storage-stable, liquid, partially trimerized polyisocyanates; to storage-stable, liquid urethane prepolymers of these partially trimerized polyisocyanates; and to a process for the production of these storage-stable, liquid, urethane prepolymers.
Abstract:
The present invention relates to novel hydroxy-ternninated (per)fluoropolyether polymer derivatives comprising urethane moieties and their use as additive in compositions for coating substrates, notably glass, metal and plastic.
Abstract:
The present invention relates to aqueous polyurethane dispersions prepared with no catalyst or very low loading of organic catalyst that can be used as cold sealable adhesives, are surfactant and solvent free and have low VOC emissions, are environmentally friendly, and provide for homogeneous and aging-resistant adhesives that can be used for cosmetic, pharmaceutical and food packaging applications. Also encompassed are processes for their production, compositions containing them and their use as adhesives.
Abstract:
Die vorliegende Erfindung betrifft neue lösemittelfreie monomerenarme Polyisocyanatgemische und deren Verwendung zur Herstellung licht- und wetterbeständiger Polyurethankörper mit hoher Lichtbrechung und geringer optischer Dispersion.
Abstract:
this invention relates to storage-stable, liquid, partially trimerized polyisocyanates having an NCO group content of 24 to 40 % by weight, and comprising 20 to 88 % by weight of toulene diisocyanate and 12 to 80 % by weight of a polyisocyanate of the diphenylmethane series. The present invention also relates to a process for the preparation of the storage-stable, liquid, partially trimerized polyisocyanates; to storage-stable, liquid urethane prepolymers of these partially trimerized polyisocyanates; and to a process for the production of these storage-stable, liquid, urethane prepolymers.