C08G63/199

POLYESTER RESIN CONTAINING FEWER FOREIGN BODIES AND COATING COMPOSITION OR ADHESIVE COMPOSITION USING THE SAME
20230077683 · 2023-03-16 · ·

An object of the present invention is to provide a polyester resin having good producibility and color tone, containing fewer foreign bodies, and showing good adhesion to a metal substrate and curability.

A polyester resin containing 2 to 10 ppm by mass of titanium in terms of metal and 50 to 100 ppm by mass of zinc in terms of metal, in which the number of foreign bodies contained in the polyester resin is 15 or less per 5 g of the polyester resin.

Bio-based polycarbonate ester resin for eyeglass frame
11479640 · 2022-10-25 · ·

A bio-based polycarbonate ester resin is environment friendly by not containing a bisphenol, and exhibits excellent heat resistance, transparency, strength, hardness, dimensional stability and chemical resistance. Thus, the bio-based polycarbonate ester resin is suitable for use in an eyeglass frame. In addition, various colors may be painted and coated on during post-processing, a separate additive is not required during a molding process, and processing is undergone at a temperature lower than that for conventional plastic materials for an eyeglass frame, and thus manufacturing costs may be reduced.

CRYSTALLIZABLE SHRINKABLE FILMS AND THERMOFORMABLE SHEETS MADE FROM RESIN BLENDS

The present disclosure relates to crystallizable shrinkable films and thermoformable film(s) or sheet(s) comprising blends of polyester compositions which comprise residues of terephthalic acid, neopentyl glycol (NRG), 1,4-cyclohexanedimethanol (CHDM), ethylene glycol (EG), diethylene glycol (DEG) and/or 2,2,4, 4-tetramethyl-1,3-butanediol (TMCD), in certain compositional ranges having certain advantages and improved properties.

PROCESS FOR THE PREPARATION OF POLYESTERS WITH RECYCLED MONOMERS FROM PYROLYSIS AND METHANOLYSIS

A process for producing recycle polyesters made from organic compounds, e.g., acids and alcohols, derived from recycled, reused or other environmentally favored raw materials by obtaining a recycle monomer composition derived directly or indirectly from cracking a recycle content pyrolysis oil composition and reacting the recycle monomer with recycle DMT obtained directly or indirectly from the depolymerization of terephthalate polyesters to prepare a recycle polyester.

PROCESS FOR THE PREPARATION OF POLYESTERS WITH RECYCLED MONOMERS FROM PYROLYSIS AND METHANOLYSIS

A process for producing recycle polyesters made from organic compounds, e.g., acids and alcohols, derived from recycled, reused or other environmentally favored raw materials by obtaining a recycle monomer composition derived directly or indirectly from cracking a recycle content pyrolysis oil composition and reacting the recycle monomer with recycle DMT obtained directly or indirectly from the depolymerization of terephthalate polyesters to prepare a recycle polyester.

CURABLE ADHESIVE BASED ON SILANE FUNCTIONALIZED RESIN

Disclosed are curable adhesive compositions comprising hydroxyl functional polymers and silane functionalized resins. Such adhesive compositions are capable of providing unexpected properties for various uses and end products. The adhesive may be used for woodworking, automotive, textile, appliances, electronics, bookbinding, and packaging. Suitable substrates can be metal, polymer film, plastics, wood, glass, ceramic, paper, and concrete.

POLYESTER ARTICLES HAVING AN IMPROVED HARD-COAT

A hard coating composition comprising an adhesion enhancing solvent component, wherein the adhesion enhancing solvent component comprises methoxy-2-propanol (PM) and ethylene glycol butyl ether (EB), a method for improving a single layer hard-coat on a polyester article using the hard coating composition, and a hard coated polyester article are described.

COMPOSITIONS AND METHODS FOR BIODEGRADABLE, BIOMASS-BASED POLYESTERS
20230124025 · 2023-04-20 ·

The disclosure relates to biomass-based polyester materials; methods of making biomass-based polyester materials; polyester compositions comprising the disclosed biomass-based polyester materials; polymer compositions comprising the biomass-based polyester materials and one or more additional polymer, including a conventional or non-biomass-based polymer; and articles comprising the disclosed biomass-based polyester materials or disclosed polymer compositions comprising a disclosed biomass-based polyester materials.

FILM AND LAMINATE FOR ELECTRONIC SUBSTRATE, AND ELECTRONIC SUBSTRATE INCLUDING SAME
20220330423 · 2022-10-13 ·

A film for an electronic substrate according to an embodiment has a moisture-absorption rate of less than 0.3% of the initial weight when immersed in water for 24 hours, and thus is less susceptible than existing films for electronic substrates are to changes in dimension or degradation in electrical characteristics caused by containing moisture according to changes in temperature and humidity. Also, the film for an electronic substrate is equal or superior to existing films in terms of flexibility and physicochemical characteristics, and thus may be applied to the manufacture of laminates with a conductive film such as FCCL and electronic substrates such as FPCB to improve processability, durability, transmission capacity, etc.

Methods and compositions for biorenewable polyesters derived from camphoric acid

In one aspect, the disclosure relates to biorenewable polyesters and polyester copolymers derived from camphoric acid, methods of making same, and articles comprising same. The disclosed biorenewable polyesters can have a Mn of from about 5,000 Da to about 500,000 Da. Also disclosed herein is the preparation of various monomers useful in the reactions disclosed herein, e.g., cis-1,4-anhydroerythritol and bis(2-hydroxyethyl) camphorate. In various aspects, the disclosed biorenewable polyesters and polyester copolymers can be used to the production of various articles utilizing a conventional polyester or polyester copolymer, that is, to replace, in part or in whole, a conventional nonbiorenewable polyester or polyester copolymer. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.