Medical contact adhesive comprising a two phase adhesive...

Details Medical contact adhesive comprising a two phase adhesive... Medical contact adhesive comprising a two phase adhesive...

2005-08-30

2005-08-30

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S222000, C525S227000, C525S228000, C525S230000, C428S352000, C428S3550AC, C428S3550CN

Reexamination Certificate

active

06936661

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.

REFERENCES:
patent: 5977242 (1999-11-01), Origuchi et al.
patent: 44 29 791 (1994-08-01), None
patent: 199 18 105 (2000-09-01), None
Database WPI Section Ch, Week 199506, Derwent Publications LTd., London GB; XP002183812 & JP 06 322342 A (Konishi Co Ltd), Nov. 22, 1994

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