Medical adhesive for stemming bleeding

US9393345B2 · kind B2 · utility

Assignee

• Adhesys Medical GmbH · DE

Inventors

• Heike Heckroth · Odenthal, DE
• Christoph Eggert

Key dates

• Filing date: Apr 17, 2012
• Grant date: Jul 19, 2016
• Expiry date: Aug 17, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/73
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a polyurea system comprising as component A) isocyanate-functional prepolymers obtainable by reaction of aliphatic isocyanates A1) with polyols A2), which in particular can have a number-average molecular weight of ≧400 g/mol and a mean OH functionality of from 2 to 6, as component B) an amino-functional compound of the general formula (I) in which X is an organic radical containing a secondary amino function, Y is an organic radical that contains a tertiary amino group and does not contain Zerewitinoff-active hydrogen, R1 is a CH2—COOR3 radical in which R3 is an organic radical that does not contain Zerewitinoff-active hydrogen, a linear or branched C1- to C4-alkyl radical, a cyclopentyl radical, a cyclohexyl radical or H, R2 is an organic radical that does not contain Zerewitinoff-active hydrogen, a is 1 or 2, b is 1 or 2, and a+b=2 or 3, for stemming the escape of blood, and to a metering system for the polyurea system according to the invention.