Blood-compatible and bacteria-repellent block copolymer

Details Blood-compatible and bacteria-repellent block copolymer Blood-compatible and bacteria-repellent block copolymer

C - Chemistry, Metallurgy

08

G

C08G 81/02 (2006.01) A61L 15/24 (2006.01) A61L 27/16 (2006.01) C08G 18/62 (2006.01) C08G 18/83 (2006.01) C08G 63/91 (2006.01) C09D 153/00 (2006.01) C09D 167/02 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2241381

Disclosed are a block copolymer comprising a blocks A which carries sulfonate and carboxyl groups and a polyurethane or polyester block B, and a composition of this block copolymer and a further polymer. Also disclosed is a process for the preparation of the block copolymer in which a copolymer C having a hydroxyl group or amino group in addition to sulfonate and carboxyl groups is reacted with a polyurethane D having terminal isocyanate groups or a polyester D having terminal carboxylic acid chloride groups. Further disclosed is a product which is coated entirely or partly with the block copolymer or is made entirely or partly of the block copolymer for medical, hygiene, industrial, foodstuffs or bioengineering purposes.

Divulgation d'un copolymère séquencé comprenant un bloc A portant des groupements sulfonates et carbonyles et un bloc B de polyuréthane ou de polyester; d'une composition de ce copolymère séquencé; et d'un polymère nouveau. On divulgue aussi un procédé pour la préparation de ce copolymère séquencé au cours duquel un copolymère C, ayant des groupements hydroxyles ou amino en plus de groupements sulfonates et carboxyles, réagit avec un polyuréthane D, ayant des groupements terminaux isocyanates, ou un polyester D, ayant des groupements terminaux chlorures d'acide carboxylique. On divulgue de plus, un produit entièrement ou partiellement recouvert par ce copolymère séquencé ou entièrement ou partiellement fait de ce copolymère séquencé, pouvant avoir des applications médicales, hygiéniques, industrielles, alimentaires ou biotechniques.

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