Patent · US Expired

Medical contact adhesive comprising a two phase adhesive matrix of polyacrylates and polyamine salts

US6936661B2 · kind B2 · utility

9Cited by

1References

21Claims

0Family size

Assignee

LTS Lohmann Therapie-Systeme AG · DE

Inventors

Andreas Koch · Heiligenhaus, DE
Stefan Bracht · Hohen Neuendorf, DE
Christoph Schmitz · Euskirchen, DE

Key dates

Filing date	Jul 11, 2001
Grant date	Aug 30, 2005
Priority date	—
Expiry date	Jul 11, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2891
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A medical pressure sensitive adhesive based on polyacrylates and neutral polyamine salts is characterized in that it has a pressure-sensitive adhesive matrix of two polymer components A and B, with polymer component A being a polyacrylate pressure-sensitive adhesive containing carboxyl groups, the carboxyl groups of which are neutralized; the polymer component B being a neutral polyamine salt obtained by reacting a polyacrylate copolymer containing amino groups with an acid, with the polymer component B being dispersed in the polymer component A, and the two components forming a two-phase system.

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