A stretch-blown plastic container, includes a container body which encloses a filling volume with a container bottom; a container neck which adjoins an opposite end of the container body, having a container opening and an integrated handle region, the handle region being hollow and joined to the filling volume which is enclosed by the container body; and between the handle region and the container body, a through opening recessed and bordered over its entire periphery by wall parts of the container body and of the handle region which have been welded to one another.

A stretch-blown plastic container, includes a container body which encloses a filling volume with a container bottom; a container neck which adjoins an opposite end of the container body, having a container opening and an integrated handle region, the handle region being hollow and joined to the filling volume which is enclosed by the container body; and between the handle region and the container body, a through opening recessed and bordered over its entire periphery by wall parts of the container body and of the handle region which have been welded to one another.

Methods produce a three-dimensional dental block of material from a dental, polymerizable material. The methods include at least: transferring the polymerizable dental material into a radiolucent three-dimensional casting or press mold; irradiating the polymerizable dental material substantially from all sides with light in the UV/Ms spectral region forming polymerized outer surfaces of the dental material in the form of a solid outer shell of the dental material, wherein the shell is present in the defined three-dimensional geometry of the material whilst the inner region of the material is not polymerized or partially polymerized; heating the material with solid shell being present in defined three-dimensional geometry, to 60 C. to 150 C. for at least 90 minutes; and obtaining a dental, polymerized block of material having defined three-dimensional geometry.

A polymethacrylate composition, an optical device made therefrom, and a display apparatus are provided. The polymethacrylate composition includes 50 to 85 parts by weight of methacrylate series polymer, 15 to 50 parts by weight of styrene series-maleic anhydride series copolymer, and an aromatic compound having a phosphite group. The methacrylate series polymer includes methacrylate series monomer unit and acrylate series monomer unit and has a weight average molecular weight (Mw) in a range between 20,000 and 200,000. The styrene series-maleic anhydride series copolymer includes 65 wt %-85 wt % of styrene series monomer unit, 15 wt %-35 wt % of maleic anhydride series monomer unit, and 0-20 wt % of second copolymerizable monomer unit. The content of the aromatic compound having a phosphite group in the polymethacrylate composition is 200 ppm-900 ppm.

An ophthalmic device is disclosed that is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more non-silicone-containing hydrophilic monomers; (b) a crosslinking agent mixture comprising (i) one or more first crosslinking agents containing at least two ethylenically unsaturated reactive end groups, wherein the at least two ethylenically unsaturated reactive end groups are (meth)acrylate-containing reactive end groups and (ii) one or more second crosslinking agents containing at least two ethylenically unsaturated reactive end groups wherein at least one of the ethylenically unsaturated reactive end groups is a non-(meth)acrylate reactive end group, and (c) one or more hydrophilic polymers or copolymers comprising one or more hydrophilic units and a thio carbonyl thio fragment of a reversible addition fragmentation chain transfer (RAFT) agent wherein the ophthalmic device has an equilibrium water content of at least about 45 weight percent.

Disclosed are: a polyalkylene terephthalate resin composition comprising (A) a polyalkylene terephthalate resin and (B) an acrylic-based core-shell polymer which has an average particle size of 2 m or greater and in which an amount of the core layer component is more than 80% by mass but less than 100% by mass relative to a total mass of the core layer component and a shell layer component; and a molded article which is obtained by molding the polyalkylene terephthalate resin composition.

A functional polymeric cutting edge structure and methods for the manufacturing cutting edge structures using polymeric materials are provided. A razor blade for use in a razor cartridge or a blade box for assembly in a razor cartridge frame may be formed using the present invention.

An ophthalmic device is disclosed that is a polymerization product of a monomeric mixture comprising: (a) a major amount of one or more non-silicone-containing hydrophilic monomers; (b) a crosslinking agent mixture comprising (i) one or more first crosslinking agents containing at least two ethylenically unsaturated reactive end groups, wherein the at least two ethylenically unsaturated reactive end groups are (meth)acrylate-containing reactive end groups and (ii) one or more second crosslinking agents containing at least two ethylenically unsaturated reactive end groups wherein at least one of the ethylenically unsaturated reactive end groups is a non-(meth)acrylate reactive end group, and (c) one or more hydrophilic polymers or copolymers comprising one or more hydrophilic units and a thio carbonyl thio fragment of a reversible addition fragmentation chain transfer (RAFT) agent wherein the ophthalmic device has an equilibrium water content of at least about 45 weight percent.

A functional polymeric cutting edge structure and methods for the manufacturing cutting edge structures using polymeric materials are provided. A razor blade for use in a razor cartridge or a blade box for assembly in a razor cartridge frame may be formed using the present invention.

Provided are a methacrylic resin composition that has adequate optical properties for practical use and excellent heat resistance, thermal stability, external appearance, and shaping processability, and a shaped product containing the same. The composition comprises a methacrylic resin, the methacrylic resin comprising: 50 mass % to 97 mass % of a methacrylic acid ester monomer unit (A); 3 mass % to 30 mass % of a structural unit (B) having a cyclic structure-containing main chain; and 0 mass % to 20 mass % of another vinyl monomer unit (C) that is copolymerizable with a methacrylic acid ester monomer, wherein the methacrylic resin satisfies a specific condition; and the composition has a weight average molecular weight residual ratio of 80% or more upon heating under a nitrogen atmosphere at 280 C. for 1 hour, and has a weight average molecular weight residual ratio of 80% or more upon heating in air at 280 C. for 0.5 hours.