Provided is a method for producing a dental curable composition, the method includes mixing a polymerizable monomer (A); a spherical filler (B) having an average primary particle diameter within a range of 230 nm to 290 nm; a spherical filler (C) having an average primary particle diameter within a range of 100 nm to 500 nm, the spherical filler having an average primary particle diameter different from that of the spherical filler (B); and a polymerization initiator (D), in which 90% or more in number of the individual particles constituting the spherical filler (B) and the spherical filler (C) are present in a range of 5% from the average primary particle diameter, and the refractive indices of the spherical filler (B) and the spherical filler (C) are larger than the refractive index of a polymer of a polymerizable monomer (A).

An object of the present invention is to provide a composition that gives a cured product excellent in heat resistance and solvent resistance. The present invention provides a compound represented by the general formula (I) below and having at least one reactive group in a molecule. In the formula, A represents a hydrocarbon ring having 6 carbon atoms; X.sup.1 and X.sup.2 each represent, for example, an aryl group having 6 to 30 carbon atoms and optionally substituted with a reactive group or a group having a reactive group; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 each represent, for example, a hydrogen atom, a reactive group, or a hydrocarbon group having 1 to 20 carbon atoms and optionally substituted with a reactive group; and R.sup.5 and R.sup.10 each represent, for example, a hydrogen atom, or a hydrocarbon group having 1 to 20 carbon atoms and optionally substituted with a reactive group.

##STR00001##

An object of the present invention is to provide a composition that gives a cured product excellent in heat resistance and solvent resistance. The present invention provides a compound represented by the general formula (I) below and having at least one reactive group in a molecule. In the formula, A represents a hydrocarbon ring having 6 carbon atoms; X.sup.1 and X.sup.2 each represent, for example, an aryl group having 6 to 30 carbon atoms and optionally substituted with a reactive group or a group having a reactive group; R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 each represent, for example, a hydrogen atom, a reactive group, or a hydrocarbon group having 1 to 20 carbon atoms and optionally substituted with a reactive group; and R.sup.5 and R.sup.10 each represent, for example, a hydrogen atom, or a hydrocarbon group having 1 to 20 carbon atoms and optionally substituted with a reactive group.

##STR00001##

The invention relates to a method to prepare a precursor for a polymer or to prepare a polymer, the polymer comprising at least one unit of formula (I) or at least one unit of formula (II) having a tertiary amine and a pendant carboxyl group

##STR00001##

Furthermore the invention relates to a precursor or polymer comprising at least one unit of formula (I) and/or at least one unit of formula (II) and to the use of such precursor or such polymer in extrusion, injection moulding, compression moulding, transfer moulding, foam moulding, thermoforming, rotation moulding or 3D printing

To provide a fluorinated compound capable of obtaining a cured product which is excellent in heat resistance and mold release and has a high Abbe number; a curable composition containing such a compound; and a cured product which is excellent in heat resistance and mold release and has a high Abbe number. The fluorinated compound is represented by the following formula (A):
[ZOCH.sub.2CF.sub.2CF.sub.2CF.sub.2OCFHCF.sub.2X].sub.nQ(A)
where n is an integer of at least 1, Q is a n-valent organic group, X is O, NH or S, and Z is a group having at least one polymerizable functional group.

To provide a fluorinated compound capable of obtaining a cured product which is excellent in heat resistance and mold release and has a high Abbe number; a curable composition containing such a compound; and a cured product which is excellent in heat resistance and mold release and has a high Abbe number. The fluorinated compound is represented by the following formula (A):
[ZOCH.sub.2CF.sub.2CF.sub.2CF.sub.2OCFHCF.sub.2X].sub.nQ(A)
where n is an integer of at least 1, Q is a n-valent organic group, X is O, NH or S, and Z is a group having at least one polymerizable functional group.

In an embodiment, the present disclosure pertains to a method of changing the glass transition temperature of a polymer. In some embodiments, the polymer includes at least one hydrazone-containing compound. In general, the methods of the present disclosure include one or more of the following steps of: (1) applying light to the polymer; and (2) thereby changing the glass transition temperature of the polymer. In another embodiment, the present disclosure pertains to a polymer having a light-adjustable glass transition temperature. In some embodiments, the polymer includes at least one hydrazone-containing compound.

Dual-functional nonfouling surfaces and materials, methods for making dual-functional nonfouling surfaces and materials, and devices that include dual-functional nonfouling surfaces and materials. The dual-functional surfaces are nonfouling surfaces that resist non-specific protein adsorption and cell adhesion. The dual-functional surfaces and materials include covalently coupled biomolecules (e.g., target binding partners) that impart specific biological activity thereto. The surfaces and materials are useful in medical diagnostics, biomaterials and bioprocessing, tissue engineering, and drug delivery.

Dual-functional nonfouling surfaces and materials, methods for making dual-functional nonfouling surfaces and materials, and devices that include dual-functional nonfouling surfaces and materials. The dual-functional surfaces are nonfouling surfaces that resist non-specific protein adsorption and cell adhesion. The dual-functional surfaces and materials include covalently coupled biomolecules (e.g., target binding partners) that impart specific biological activity thereto. The surfaces and materials are useful in medical diagnostics, biomaterials and bioprocessing, tissue engineering, and drug delivery.

The invention relates to novel anisotropic compounds of formula (I) ##STR00001##
as well as liquid crystalline mixtures, films and electro-optical devices comprising the compound.