Patent · US Active

Bioinert article and its use

US10047230B2 · kind B2 · utility

0Cited by

1References

24Claims

0Family size

Assignee

FREIE UNIVERSITÄT BERLIN · DE

Inventors

Rainer Haag · Berlin, DE
Marie Weinhart · Berlin, DE
Qiang Wei · Guiyang, CN
Tobias Becherer · Berlin, DE
Ingo Grunwald · Bremen, DE

Key dates

Filing date	Sep 8, 2014
Grant date	Aug 14, 2018
Priority date	—
Expiry date	Apr 24, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2300/202
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An article, comprising a substrate and a polymer film attached to the substrate is provided, the polymer film comprising a first layer of a first polymer functionalized by a first functionalization compound covalently bound to said first polymer and bearing at least one catecholic group being present on a surface of the first layer. The polymer film is a layered film, a top layer of which is formed by the first layer, the layered film comprising at least one further layer of at least one further polymer functionalized by a further functionalization compound covalently bound to said further polymer and bearing at least one catecholic group being present on a surface of the at least one further layer, wherein an average ratio of catecholic groups per polymer molecule is equal to or less than 1 in case of the first polymer and greater than 1 in case of the further polymer.

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