Use of polymers containing urethane and/or urea groups for the modification of surfaces
OwnerValerie Andre, Werner Bertleff +6inventors
InventorsValerie Andre, Werner Bertleff, Karl Häberle, J?uuml;rgen Huff, Ralf Nörenberg, Wolfgang Schrepp, Helmut Meffert, Kati Schmidt
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Abstract
The present invention relates to particulate, linear, sheet-like, or three-dimensional structures which comprise, at least on their surface, a hydrophilicizing amount of at least one polymer which has urethane groups and/or urea groups, and also ammonium groups. The ammonium groups are obtained by quaternizing or neutralizing tertiary amino groups, preferably with carbonic acid.
Claims13
A particulate, linear, sheet-like, or three-dimensional structure comprising, at least on its surface, a hydrophilicizing amount of at least one polymer which has urethane groups and/or urea groups, and also ammonium groups.
A structure as claimed in any of the preceding claims, where the polymer incorporates
- a) at least one polyisocyanate, and
- b) at least one compound having at least two groups reactive toward isocyanate groups and also having at least one tertiary amino group,
- where at least some of the tertiary amino groups are present in the form of the products of their reaction with at least one neutralizing and/or quaternizing agent.
A polymer composed of
- a) at least one incorporated polyisocyanate, and
- b) at least one incorporated compound having at least two groups reactive toward isocyanate groups and also having at least one tertiary amino group,
- where at least some of the tertiary amino groups are present in the form of the products of their reaction with at least one neutralizing and/or quaternizing agent.
The use of polymers which incorporate
- a) at least one polyisocyanate, and
- b) at least one compound having at least two groups reactive toward isocyanate groups and also having at least one tertiary amino group,
- where at least some of the tertiary amino groups are present in the form of the products of their reaction with at least one neutralizing and/or quaternizing agent, for modifying the surface properties of solid substances.
A process for modifying the surface properties of particulate, linear, sheet-like, or three-dimensional structures, by applying, to the surface of these, an effective amount of a polymer which incorporates
- a) at least one polyisocyanate, and
- b) at least one compound having at least two groups reactive toward isocyanate groups and also having at least one tertiary amino group,
- where at least some of the tertiary amino groups are present in the form of the products of their reaction with at least one neutralizing and/or quaternizing agent.
A process for modifying the surface properties of particulate, linear, sheet-like, or three-dimensional structures, by modifying the material of which the structure is composed with an effective amount of a polymer which incorporates
- a) at least one polyisocyanate, and
- b) at least one compound having at least two groups reactive toward isocyanate groups and also having at least one tertiary amino group,
- where at least some of the tertiary amino groups are present in the form of the products of their reaction with at least one neutralizing and/or quaternizing agent, and by producing the structure from this material.
Dependencies are inferred from the claim text.