Process of coating consisting of a mixture of vinyl chloride polymer and polyurethane with tertiary amine and/or ammonium groups
First Claim
1. Process for the preparation of organic polymer compositions, which can be used, in particular for producing tubes and catheters, having good compatibility with biological materials, characterized in that a support is coated with a solution of a composition that consists of a mixture of vinyl chloride polymer and of polyether-urethane with tertiary amine and/or ammonium groups with the proportion of the polyether-urethane being from 1 to 99 percent by weight, relative to the total mixture, and in that this coated solution is evaporated.
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Abstract
Polymer compositions comprising a mixture of vinyl chloride polymer and polyetherurethane with tertiary amine and/or ammonium groups. The compositions can be converted into shaped articles, e.g. tubes, cannulae, catheters and the like useful in the medical field.
19 Citations
7 Claims
- 1. Process for the preparation of organic polymer compositions, which can be used, in particular for producing tubes and catheters, having good compatibility with biological materials, characterized in that a support is coated with a solution of a composition that consists of a mixture of vinyl chloride polymer and of polyether-urethane with tertiary amine and/or ammonium groups with the proportion of the polyether-urethane being from 1 to 99 percent by weight, relative to the total mixture, and in that this coated solution is evaporated.
Specification