C08L2201/10

POLYCARBONATE/POLYORGANOSILOXANE COPOLYMER AND RESIN COMPOSITION INCLUDING SAID COPOLYMER
20230052441 · 2023-02-16 · ·

Provided is a polycarbonate-polyorganosiloxane copolymer, which is produced by using a diol monomer (a1) and a polyorganosiloxane (a2) satisfying the following condition, including: a polyorganosiloxane block (A-1) including a specific repeating unit; and a polycarbonate block (A-2) formed of a specific repeating unit: a mixture, which is obtained by bringing the diol monomer (a1), the polyorganosiloxane (a2), a carbonic acid diester, and a basic catalyst present at the same amount ratio as that at a time of production of the polycarbonate-polyorganosiloxane copolymer into contact with each other at from 100° C. to 250° C. for from 0.5 hour to 5 hours, has a haze value of 30 or less measured under conditions of 23° C. and an optical path length of 10 mm in conformity with ISO 14782:1999.

THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE INCLUDING THE SAME

The present invention relates to a thermoplastic resin composition and a molded article including the same. More particularly, the present invention relates to a thermoplastic resin composition including 100 parts by weight of a base resin that includes an acrylic graft copolymer and an acrylic non-graft copolymer; and greater than 0.3 parts by weight and less than 1.2 parts by weight of a zinc-based antimicrobial agent, and a molded article including the same, wherein the zinc-based antimicrobial agent has an average particle diameter of greater than 3 μm to 30 μm. In accordance with the present invention, a thermoplastic resin composition providing superior transparency and excellent initial antimicrobial activity and persistent antimicrobial activity while providing the same mechanical properties as existing resin compositions, and a molded article including the same are provided.

High refractive index, high Abbe compositions

Disclosed are hydrophobic, acrylic materials having both high refractive index and a high Abbe number. The materials may have an internal wetting agent, are well suited for use as implantable ophthalmic devices, and have a refractive index which may be edited through application of energy. When used for an intraocular lens, the high refractive index allows for a thin lens which compresses to allow a small incision size.

Compositions obtained from recycled polyolefins

A polyolefin composition made from or containing: T1) 70-95 wt %, a polyolefin component containing: a1) from 30 wt % to 70 wt % of a propylene based polymer; and a2) from 30 wt % to 70 wt % of an ethylene based polymer; the sum of a1) and a2), being referred to the total weight of a1) and a2), being 100; and T2) 5-30 wt % of a propylene ethylene copolymer containing from 2.0 wt % to 10.0 wt %; of ethylene derived units and having a melt flow rate (230° C./2.16 kg) ranging from 0.5 to 20.0 g/10 min, and having a fraction soluble in xylene at 25° C. lower than 20 wt %.
the sum of the amount of T1) and T2), being referred to the total weight of T1) and T2), being 100.

BIODEGRADABLE POLYESTER AND ADHERENT PACKAGING FILMS MADE THEREFROM

A biodegradable aliphatic-aromatic polyester for the production of packaging films, having a Poisson's ratio (RVE) between 800 and 1700, comprising units of at least one dicarboxylic acid and at least one diol, in which Mn≥40000 and Mw/q≤90000, in which q is the percentage by weight of polyester oligomers having a molecular weight≤10000.

REINFORCED BIOPOLYMERS
20230002614 · 2023-01-05 ·

Various aspects of the present disclosure are directed toward devices, methods, and systems that include a reinforced biopolymer including a synthetic support membrane and a biopolymer. The reinforced biopolymer may have a measured optical transparency of at least 85%, a thickness of about 100 μm or less, and a toughness of at least 30 KJ/m.sup.3.

TRIAZINE RING-CONTAINING POLYMER AND FILM FORMING COMPOSITION CONTAINING SAME
20230002555 · 2023-01-05 · ·

For example, a triazine ring-containing polymer containing a repeating unit structure represented by Formula (24) below,

##STR00001## wherein R.sup.102 represents a crosslinking group.

THERMOPLASTIC RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME

The present disclosure relates to a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. For example, the present disclosure relates to a thermoplastic resin composition including 35 to 85% by weight of an alkyl acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A) containing alkyl acrylate rubber having an average particle diameter of 50 to 120 nm and 15 to 65% by weight of a polymethacrylate resin (B). The thermoplastic resin composition has an alkyl acrylate coverage value (X) of 70% or more as calculated by Equation 1. The thermoplastic resin composition may have beneficial mechanical properties, such as impact strength, tensile strength, and flexural strength, surface hardness, transparency, and colorability and may be capable of preventing occurrence of whitening during bending due to beneficial non-whitening properties.

METHOD OF PREPARING VINYL CHLORIDE-BASED POLYMER COMPOSITE

Provided is a method of preparing a vinyl chloride-based polymer composite, which includes: bulk-polymerizing vinyl chloride-based monomers to prepare a vinyl chloride-based polymer; and preparing a vinyl chloride-based polymer composite including the vinyl chloride-based polymer and polyvinylpyrrolidone.

SURFACE COATING COMPRISING MICROFIBRILLATED CELLULOSE OR NANOCELLULOSE

Articles comprising a surface or porous substrate and having on said surface or porous substrate a coating comprising microfibrillated cellulose or nanocellulose, methods of applying a coating comprising microfibrillated cellulose or nanocellulose to a surface or porous substrate, compositions comprising microfibrillated cellulose or nanocellulose, and the use of such compositions in methods of preparing an antimicrobial surface coating, and improving filtration efficiency and preparing an antimicrobial surface and/or antiviral surface coating.