US 6,143,893 AGranted

1,4-bis{.beta.-[N-methyl-N-(2-hydroxyethyl)amino]propionyl}piperazine and process for its preparation

AssigneeTecnobiomedica S.p.A.

InventorMaria Cristina Tanzi

Life of this patent

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Abstract

The compound of formula is useful as chain extender in the preparation of polymers, in particular of linear and cross-linkable, heparinizable, biocompatible polymers.

Claims4

Dependent claims

Compound of formula ##STR2##

Dependencies are inferred from the claim text.

Facts

Application: 09/310,207Filed 12 May 1999 · division
Priority: IT MI97A08028 Apr 1997
Granted: 7 Nov 2000
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

C07D 295/185
Radicals derived from carboxylic acids: from aliphatic carboxylic acids
A61L 33/0011
Use of materials characterised by their function or physical properties: anticoagulant, e.g. heparin, platelet aggregation inhibitor, fibrinolytic…
C08G 18/10
Processes: prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/3825
Containing -N-C=O groups: containing amide groups

Family

Serial055,981Parent of this division · filed 7 Apr 1998
US 5,955,560 AParent of this division
US 6,143,893 AThis patent

From the US filing history. Foreign family members aren’t listed.

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