Composition for laminated material used for medical lubricating member, laminated material used for medical lubricating member, medical lubricating member, and medical device

1. A composition for a laminated material used for a medical lubricating member, the composition comprising:

a polymer b1 including a polysiloxane structure; and

a crosslinkable polymer b2 having a reactive group that forms a crosslinked body with the polymer b1,

wherein the reactive group is at least one reactive group in Group I of reactive groups,

the crosslinkable polymer b2 is at least one of polysaccharides, polyethyleneimines, polyesters, polyethers, polyamides, polyurethanes, polyureas, or polyimides,

the crosslinkable polymer b2 has a number-average molecular weight of 1000 or more, and

the polymer b1 is a graft polymer having the polysiloxane structure in a graft chain, Group I of reactive groups

hydroxy group, carboxy group, amino group, isocyanate group, oxazolinyl group, epoxy group, vinyl group, ethynyl group, sulfanyl group, azide group, trialkoxysilyl group, halogenated methyl group, and acid anhydride structure.

2. A laminated material used for a medical lubricating member, the laminated material comprising:

a substrate a; and

a layer b disposed on the substrate a,

wherein the layer b is a layer including a crosslinked body formed from a polymer b1 including a polysiloxane structure and a crosslinkable polymer b2 having at least one reactive group in Group I of reactive groups,

the crosslinkable polymer b2 is at least one of polysaccharides, polyethyleneimines, polyesters, polyethers, polyamides, polyurethanes, polyureas, or polyimides,

the crosslinkable polymer b2 has a number-average molecular weight of 1000 or more, and

the polymer b1 is a graft polymer having the polysiloxane structure in a graft chain, Group I of reactive groups

hydroxy group, carboxy group, amino group, isocyanate group, oxazolinyl group, epoxy group, vinyl group, ethynyl group, sulfanyl group, azide group, trialkoxysilyl group, halogenated methyl group, and acid anhydride structure.

3. The laminated material used for a medical lubricating member according to claim 2 , wherein the crosslinkable polymer b2 is at least one of polysaccharides, polyethyleneimines, polyesters, polyethers, polyamides, or polyurethanes.

4. The laminated material used for a medical lubricating member according to claim 2 , wherein a content of a constituent component derived from the crosslinkable polymer b2 in the crosslinked body is 30 to 90 mass %.

5. The laminated material used for a medical lubricating member according to claim 2 , wherein the layer b has a surface subjected to hydrophilic treatment.

6. The laminated material used for a medical lubricating member according to claim 2 , wherein the substrate a is formed of at least one of a urethane resin, a silicone resin, a fluorocarbon resin, an olefin resin, or an acrylic resin.

7. The laminated material used for a medical lubricating member according to claim 2 , wherein the substrate a is formed of a silicone resin.

8. The laminated material used for a medical lubricating member according to claim 2 , wherein the medical lubricating member is used as a member of a medical device selected from the group consisting of a medical tube, a guide wire, an endoscope, a surgical needle, a surgical suture, forceps, an artificial blood vessel, an artificial heart, and a contact lens.

9. The laminated material used for a medical lubricating member according to claim 2 ,

wherein the polymer b1 has a structural unit represented by formula (1) below and has at least one of a structural unit represented by formula (2) below, a structural unit represented by formula (3) below, or a structural unit represented by formula (4) below,

wherein R 1 to R 6 represent a hydrogen atom or an organic group, L 1 represents a single bond or a divalent linking group, and n1 represents 3 to 10000,

wherein R 7 and R a represent a hydrogen atom or an organic group,

wherein R 8 , R b1 , and R b2 represent a hydrogen atom or an organic group, and

wherein R 9 represents a hydrogen atom or an organic group, and R c1 to R c5 represent a hydrogen atom, a halogen atom, or an organic group.

10. The laminated material used for a medical lubricating member according to claim 9 ,

wherein R a represents a group represented by formula (5) below or a nitrogen-containing organic group,

wherein n2 represents 1 to 10000, R 10 represents a hydrogen atom or an organic group, and * represents a bonding site.

11. The laminated material used for a medical lubricating member according to claim 9 , wherein n1 represents 135 to 10000.

12. A medical lubricating member comprising:

the laminated material used for a medical lubricating member according to claim 2 ; and

a layer c that is disposed on the layer b constituting the laminated material and that includes a hydrophilic polymer.

13. A medical device comprising:

the medical lubricating member according to claim 12 ,

wherein the medical device is selected from the group consisting of a medical tube, a guide wire, an endoscope, a surgical needle, a surgical suture, forceps, an artificial blood vessel, an artificial heart, and a contact lens.