1-16. (canceled)
17. A polymer comprising a first polyalkylene glycol chain and a polymer segment including constituent units respectively derived from unsaturated monomers, which polymer segment is bonded to one end of the first polyalkylene glycol chain, wherein the unsaturated monomers constituting the polymer segment include an unsaturated carboxylic acid monomer to provide a carboxyl group in the polymer segment and an unsaturated polyalkylene glycol monomer to provide a second polyalkylene glycol chain in the polymer segment.
18. The polymer according to claim 17,
obtained by polymerization of the unsaturated monomers using at least one member selected from the group consisting of a polymerization initiator having the first polyalkylene glycol chain and a radical generation segment, and a chain transfer agent having the first polyalkylene glycol chain.
19. The polymer according to claim 17, wherein when the unsaturated carboxylic acid monomer is the main component of the unsaturated monomers, the ratio, by mass %, of the amount of the first polyalkylene glycol chain to the total amount of the unsaturated carboxylic acid monomer, the unsaturated polyalkylene glycol monomer, and a copolymerizable monomer is from 4060 to 991.
20. The polymer according to claim 17, wherein when the unsaturated polyalkylene glycol monomer is the main component of the unsaturated monomers, the ratio, by mass %, of the amount of the first polyalkylene glycol chain to the total amount of the unsaturated carboxylic acid monomer, the unsaturated polyalkylene glycol monomer, and a copolymerizable monomer is from 298 to 955.
21. The polymer according to claim 17, wherein the amount of the unsaturated carboxylic acid monomer is in a ratio, by mass %, of the amount of the unsaturated carboxylic acid monomer to the total amount of the first polyalkylene glycol chain, the unsaturated polyalkylene glycol monomer, and a copolymerizable monomer, ranging from 1 to 50from 99 to 50.
22. A cement admixture comprising the polymer according to claim 17.
23. A polymer mixture comprising the polymer according to claim 17.
24. The polymer mixture according to claim 23, further comprising:
a polymer comprising a first polyalkylene glycol chain and two polymer segments, each including constituent units respectively derived from unsaturated monomers, which polymer segments are respectively bonded to both ends of the first polyalkylene glycol chain, wherein the unsaturated monomers constituting each polymer segment include an unsaturated carboxylic acid monomer to provide a carboxyl group in the polymer segment and an unsaturated polyalkylene glycol monomer to provide a second polyalkylene glycol chain in the polymer segment; and
a polymer repeatedly comprising a block polymer unit consisting of a first polyalkylene glycol chain and a polymer segment including constituent units respectively derived from unsaturated monomers, which polymer segment is bonded to one end of the first polyalkylene glycol chain, wherein the unsaturated monomers constituting the polymer segment include an unsaturated carboxylic acid monomer to provide a carboxyl group in the polymer segment and an unsaturated polyalkylene glycol monomer to provide a second polyalkylene glycol chain in the polymer segment.
25. The polymer mixture according to claim 23, further comprising:
a polymer comprising two first polyalkylene glycol chains and a polymer segment including constituent units respectively derived from unsaturated monomers, which polymer segment connects the two first polyalkylene glycol chains, wherein the unsaturated monomers constituting each polymer segment include an unsaturated carboxylic acid monomer to provide a carboxyl group in the polymer segment and an unsaturated polyalkylene glycol monomer to provide a second polyalkylene glycol chain in the polymer segment.
26. The polymer mixture according to claim 25, further comprising:
a polymer comprising constituent units respectively derived from unsaturated monomers including an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer.
27. The polymer mixture according to claim 23,
obtained by polymerization of the unsaturated monomers using at least one member selected from the group consisting of a polymerization initiator having the first polyalkylene glycol chain and a radical generation segment, and a chain transfer agent having the first polyalkylene glycol chain.
28. A cement admixture comprising the polymer mixture according to claim 23.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A culture-vessel adaptor that is detachably fixed to the exterior of a culture vessel capable of holding a culture medium containing a specimen, the culture-vessel adaptor comprising:
a vessel mounting part where the culture vessel is mounted; and
a protruding part disposed so as to extend outward from a side surface of the culture vessel when the culture vessel in mounted in the vessel mounting part.
2. The culture-vessel adaptor according to claim 1, further comprising:
a peripheral wall that is connected to the vessel mounting part around the entire circumference of the vessel mounting part and that is disposed at a certain distance outside the side surface of the culture vessel when the culture vessel is mounted in the vessel mounting part.
3. The culture-vessel adaptor according to claim 1, wherein the protruding part is formed in the shape of a flange.
4. The culture-vessel adaptor according to claim 1, wherein a fitting portion for fitting the culture vessel is provided in the vessel mounting part.
5. The culture-vessel adaptor according to claim 1, wherein the culture-vessel adaptor is formed of a heat-resistant plastic material.
6. The culture-vessel adaptor according to claim 1, wherein at least the vessel mounting part is formed of a transparent material.
7. The culture-vessel adaptor according to claim 1, wherein a through-hole is formed in the vessel mounting part.
8. A culture treatment apparatus comprising:
a treatment chamber containing a treatment apparatus that opens a lid of a culture vessel containing a specimen and that performs predetermined treatment on the specimen in the culture vessel; and
a handling apparatus, provided in the treatment chamber, for transferring a culture-vessel adaptor according to claim 1, in which the culture vessel is mounted, by engaging with the protruding part from below.