Patent · US Active

Polyurea-based fabric glue

US9717819B2 · kind B2 · utility

0Cited by

46References

8Claims

0Family size

Assignee

Adhesys Medical GmbH · DE

Inventors

Heike Heckroth · Odenthal, DE
Hartmut Nefzger · Pulheim, DE
Christoph Eggert

Key dates

Filing date	Jun 24, 2016
Grant date	Aug 1, 2017
Priority date	—
Expiry date	Jun 24, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09J175/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a polyurea system, the use of such a polyurea system for sealing, linking, gluing, or covering of cellular tissue, and a dosing system having two chambers for a polyurea system such as this. The polyurea system comprises as components: A) an isocyanate-functioning prepolymer, which can be derived by reacting aliphatic isocyanates with polyoles, and B) an amino-functioning ester of aspartic acid. According to the invention, water and/or tertiary amine is added to the system, in order to increase the reacting speed of the prepolymer with the amino-functioning ester of aspartic acid while decreasing the setting time at the same time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.