摘要:
Objects of the present invention are to provide a base film for cell culture that enables mass production of homogeneous and high-quality cell aggregates even without the use of a biological serum, and to provide a base film-forming agent for forming the base film, and a substrate for producing cell aggregate. The present inventors provide a base film-forming agent for cell culture including a polymer, a cell adhesive substance, and a solvent, wherein the polymer contains a repeating unit derived from a monomer of formula (I) below:
wherein Ua1, Ua2, Ra1, and Ra2 are as described in the specification and the claims.
摘要:
The present invention relates to a water-soluble polymer obtained by polymerization of at least a 2-dimethylaminoethyl acrylate monomer and/or its salts, in presence of at least a tocopherol and/or its derivatives, or a tocotrienol and/or its derivatives, and its uses.
摘要:
A water-soluble cationic polymer is applied to a sanitary product. The water-soluble cationic polymer has a structure including a main chain and a side chain bound to the main chain and has a molecular weight of 2000 or more. The water-soluble cationic polymer is a quaternary ammonium salt homopolymer or a quaternary ammonium salt copolymer. In the water-soluble cationic polymer, the main chain and the side chain are bound to each other at one point, and the side chain has a quaternary ammonium moiety. It is preferable that the quaternary ammonium salt homopolymer has a molecular weight of ten million or less. It is preferable that the quaternary ammonium salt copolymer is a copolymer of a polymerisable monomer having a quaternary ammonium moiety and a cationic polymerisable monomer, an anionic polymerisable monomer, or a nonionic polymerisable monomer, and has a molecular weight of ten million or less.
摘要:
A water-soluble cationic polymer is applied to a sanitary product. The water-soluble cationic polymer has a structure including a main chain and a side chain bound to the main chain and has a molecular weight of 2000 or more. The water-soluble cationic polymer is a quaternary ammonium salt homopolymer or a quaternary ammonium salt copolymer. In the water-soluble cationic polymer, the main chain and the side chain are bound to each other at one point, and the side chain has a quaternary ammonium moiety. It is preferable that the quaternary ammonium salt homopolymer has a molecular weight of ten million or less. It is preferable that the quaternary ammonium salt copolymer is a copolymer of a polymerisable monomer having a quaternary ammonium moiety and a cationic polymerisable monomer, an anionic polymerisable monomer, or a nonionic polymerisable monomer, and has a molecular weight of ten million or less.
摘要:
An optical device having a first optical member, a second optical member, and an antistatic layer disposed between the first optical member and the second optical member wherein the antistatic layer contains the reaction product of a mixture comprising at least one polymerizable onium salt having an anion and at least one non-onium polymerizable monomer, oligomer, or polymer.
摘要:
Monomer compounds comprising several cationic groups are provided. The invention also relates to a process for making these monomer compounds. The process is highly selective and prevents unwanted reactions leading to undesired structures. The invention relates also to polymers, including copolymers, comprising units deriving from said monomer compounds. The monomer compounds comprise several cationic groups, e.g. those having the following formula (I): wherein -R 1 is a hydrogen atom, a methyl group or an ethyl group, - A, which is identical or different, is a group comprising an ester group of formula -A-C(O)-O-A 2 -, or an amide group of formula -A 1 -C(O)-NR 10 -A 2 -, wherein: -R 10 , which is identical or different, is hydrogen or an alkyl, hydroxyalkyl, or aminoalkyl C 1 -C 6 linear or branched group - A 1 , which is identical or different is a covalent bond or a group of formula -(CH 2 ) P1 - wherein p1 is an integer of from 1 to 6, preferably 1, -A 2 , which is identical or different, is a linear or branched hydrocabron group comprising optionally N, O, or S hereroatomes or heterogroups, optionally substituted, optionally forming or comprising a cycle, such as a heterocycle, A 2 preferably being a group of formula -(CH 2 ) p2 - wherein p 2 is an integer of from 1 to 6, - R 1 , R 2 , R 3 , R 5 and R 6 , which are identical or different, are hydrogen, alkyl, hydroxyalkyl, or aminoalkyl C 1 -C 6 linear or branched groups, or, if inside the brackets, form a heterocycle with group A 2 , -m is an integer of from 1 to 10, preferably of from 1 to 2, - n is an integer of from 1 to 6, preferably 2 or 4, Z is -O-, -C(O)O, or -C(O)NH-, B is linear or branched C 2 -C 12 polymethylene chain, preferably a C 3 -C 6 one, optionally comprising heteroatoms or heterogroups, such as O or NH, and optionally substituted with one or several hydroxy or amino groups, and -X - , which are identical or different, are counter ions.