Use of oligomeric or polymeric compounds according to the general formula I

##STR00001##

as organic synergists of fire and flame retardants in self-extinguishing polymeric compositions.

Use of oligomeric or polymeric compounds according to the general formula I

##STR00001##

as organic synergists of fire and flame retardants in self-extinguishing polymeric compositions.

The present invention relates to a fluorescent polymer cast on the surface of wells of a plate and a plate comprising the fluorescent polymer. The plate is used in a method for calibrating read-out values of plate readers. The method for calibrating the plate readers can effectively reduce the deviation of read-out values among different plate readers.

The present invention relates to a fluorescent polymer cast on the surface of wells of a plate and a plate comprising the fluorescent polymer. The plate is used in a method for calibrating read-out values of plate readers. The method for calibrating the plate readers can effectively reduce the deviation of read-out values among different plate readers.

The present invention relates to a fluorescent polymer cast on the surface of wells of a plate and a plate comprising the fluorescent polymer. The plate is used in a method for calibrating read-out values of plate readers. The method for calibrating the plate readers can effectively reduce the deviation of read-out values among different plate readers.

The filter medium is a filter medium which uses a liquid containing oil and water as a separation target, and has a channel for the liquid. The filter medium includes a base constituting the channel, and one or more of nitrogen-containing fluorine compounds which are provided on at least a portion of a surface of the channel. The nitrogen-containing fluorine compound includes an oil-repellency imparting group and any one hydrophilicity imparting group selected from a group consisting of an anion type, a cation type, and an amphoteric type, in a molecule.

The present invention relates to a halogen-free flame retardant resin composition, according to parts by weight, the resin composition comprises: (A) a mixture of phenoxyphosphazene compound (A1) and compound (A2) having a dihydrobenzoxazine ring, the mixture comprising 45-90 parts by weight, and the weight ratio of the phenoxyphosphazene compound (A1) and the compound (A2) having a dihydrobenzoxazine ring is between 1:25-1:2; (B) an epoxy resin with epoxy equivalent of 500-2000, the epoxy resin comprising 10-45 parts by weight; (C) a phenolic resin comprising 10-25 parts by weight; and (D) an amine curing agent comprising 0.5-10 parts by weight. The prepreg, laminate, and metal-clad laminate for the printed circuit prepared using the halogen-free flame retardant resin composition, have the advantages of high glass transition temperature (T.sub.g), high thermal resistance, low dielectric dissipation factor, low water absorption as well as a low C.T.E.

The present invention relates to a halogen-free flame retardant resin composition, according to parts by weight, the resin composition comprises: (A) a mixture of phenoxyphosphazene compound (A1) and compound (A2) having a dihydrobenzoxazine ring, the mixture comprising 45-90 parts by weight, and the weight ratio of the phenoxyphosphazene compound (A1) and the compound (A2) having a dihydrobenzoxazine ring is between 1:25-1:2; (B) an epoxy resin with epoxy equivalent of 500-2000, the epoxy resin comprising 10-45 parts by weight; (C) a phenolic resin comprising 10-25 parts by weight; and (D) an amine curing agent comprising 0.5-10 parts by weight. The prepreg, laminate, and metal-clad laminate for the printed circuit prepared using the halogen-free flame retardant resin composition, have the advantages of high glass transition temperature (T.sub.g), high thermal resistance, low dielectric dissipation factor, low water absorption as well as a low C.T.E.

In one aspect, build materials and support materials for use with a 3D printer are described herein. Such materials include a phosphor component in combination with other components. In some embodiments, the phosphor component of a build material or support material is present in the material in an amount of 0.001-0.5 wt. % and has a peak photoluminescence (PL) emission wavelength of 430-750 nm and a photoluminescence quantum yield (QY) of 0.10-1.

In one aspect, build materials and support materials for use with a 3D printer are described herein. Such materials include a phosphor component in combination with other components. In some embodiments, the phosphor component of a build material or support material is present in the material in an amount of 0.001-0.5 wt. % and has a peak photoluminescence (PL) emission wavelength of 430-750 nm and a photoluminescence quantum yield (QY) of 0.10-1.