Patent classifications
C08G18/722
METHOD FOR PRODUCING AND USING AQUEOUS POLYURETHANE DISPERSIONS AND USE OF SAME IN COATING AGENTS
The present invention relates to the use of aqueous hybrid dispersions, wherein (a) an aqueous polyurethane dispersion is prepared and (b) said polyurethane dispersion is used as raw material for the additional synthesis of a polyacrylate dispersion and the resulting hybrid dispersion is used as binder in filled coating materials, in particular, as binder for the flexible roof coating.
Coating Resin Composition
An ultraviolet curing type coating resin composition having all of respective beneficial features of excellent state in chemical resistance, under high temperature, against human skin protection creams containing a mixture of alkyl esters of benzoic acid, as represented by Neutrogena Cream (registered trademark), excellent state in gas barrier property against metal-corrosive gases as represented by sulfur-containing gases, and excellent state in flexibility that accommodates three-dimensional shape forming processing is demanded, includes an ultraviolet curing type coating resin composition containing an unsaturated-group-containing acrylic resin, with a weight average molecular weight of 5000 to 70000, a number of (meth)acrylate functional groups per molecule of 5 to 40, a hydroxyl value of 2 to 200 mgKOH/g, and with a glass transition temperature of 20 to 90° C., a volatile organic solvent, and a photopolymerization initiator.
DISPERSION ADHESIVES
The invention relates to formulations of aqueous dispersion adhesives based on aqueous polyurethane or polyurethane-urea dispersions, and to the use of the adhesive formulations for the adhesive bonding of foam substrates by the spray coagulation process. The dispersion comprises as disperse phase at least one polymer which after drying is semicrystalline or crystalline and has a melting temperature in the range from 30 to 80° C. and an enthalpy of fusion of ≥35 J/g. The formulation comprises at least one plasticizer and optionally at least one tackifier resin.
AQUEOUS POLYURETHANE DISPERSION
The present invention relates to an aqueous polyurethane dispersion and a process for preparing the same, an adhesive containing the same, and an adhesion article obtained by bonding with the adhesive. The aqueous polyurethane dispersion comprises a polyurethane having an anionic group dispersed therein, the polyurethane has a fusion enthalpy of 3 J/g-100 J/g at 20° C.-100° C. of the first temperature rising curve measured with the DSC according to DIN 65467, a weight-average molecular weight of 31,000-95,000, and the aqueous polyurethane dispersion has an acid value of 0.5 mg KOH/g-8.5 mg KOH/g. The adhesive comprising the aqueous polyurethane dispersion of the present invention has an excellent initial bonding force.
Solid electrolyte composition, solid electrolyte-containing sheet and manufacturing method therefor, all-solid state secondary battery and manufacturing method therefor, and polymer and non-aqueous solvent dispersion thereof
Provided are a solid electrolyte composition containing an inorganic solid electrolyte (A) having a conductivity of an ion of a metal belonging to Group I or II of the periodic table and a binder (B), in which the binder (B) is a polymer having at least one bond of a urethane bond, a urea bond, an amide bond, an imide bond, or an ester bond in a main chain and having a graft structure, a solid electrolyte-containing sheet and a manufacturing method therefor, an all-solid state secondary battery and a manufacturing method therefor, and a polymer having a specific hard segment and a graft structure and a non-aqueous solvent dispersion thereof.
Method for preparing optical lenses
The present invention relates to a composition comprising 10 to less than 50 wt.-% of at least one oligomeric polyisocyanate a-1) based on hexamethylene diisocyanate and more than 50 to 90 wt.-% of at least one polyisocyanate a-2) based on isophorone diisocyanate, comprising monomeric isophorone diisocyanate and at least one oligomeric isophorone diisocyanate, and an isocyanate-reactive component selected from the group consisting of polyester polyol, polyether polyol and mixtures thereof. It has been shown that the above mentioned mixture of the specific isocyanate group containing components improves the thermal and mechanical properties of a cured composition. Thus prepared molded articles are particularly suitable for the preparation of spectacle lenses, inter alia due to these properties.
METHODS FOR PRODUCING AND USING AQUEOUS POLYURETHANE/POLYACRYLATE HYBRID DISPERSIONS AND USE OF SAID AQUEOUS POLYURETHANE/POLYACRYLATE HYBRID DISPERSIONS IN COATING AGENTS
The present invention provides an aqueous polyurethane (PU)-polyacrylate hybrid dispersion obtainable by free radical polymerization of at least one acrylate polymer (A1) in the presence of at least one polyurethane (P1), a process for preparing these aqueous polyurethane-polyacrylate hybrid dispersions, wherein said process comprises a) preparing an aqueous polyurethane dispersion and b) using the polyurethane dispersion thus prepared as raw material for the further synthesis of a polyacrylate dispersion, and the use of the hybrid dispersion thus obtained as binder in filled coating materials, particularly as a binder for flexible roof coatings.
NON-SOFTENING RESILIENT THERMOPLASTIC POLYURETHANES
The thermoplastic polyurethane (TPU) compositions described herein have a very good snap back properties (also called rebound resilience) while still maintaining a good combination of other properties, including hardness, low-temperature flexibility, abrasion resistance, weather-ability, low density, or any combination thereof. This combination of properties make the TPU compositions described herein useful materials for applications where polyamide copolymers (COPA) and/or polyether block amide (PEBA) materials have traditionally been used over TPU.
POLYMERIZABLE COMPOSITION, MOLDED PRODUCT, AND USE THEREOF
The polymerizable composition of the present invention includes at least one isocyanate compound (A) having a cyclic structure, selected from compounds represented by the following Formulae (1), (2), and (3), and aliphatic isocyanate compound (B) having 4 to 11 carbon atoms, and a thiol compound (C).
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POLYMERIZABLE COMPOSITION, TRANSPARENT RESIN, OPTICAL MATERIAL, PLASTIC LENS, AND METHOD FOR MANUFACTURING TRANSPARENT RESIN
A polymerizable composition which can suppress generation of turbidity, optical distortion, and striae in a transparent resin obtained therefrom, a transparent resin obtained from the polymerizable composition, an optical material containing the transparent resin, a plastic lens containing the optical material, and a method for manufacturing the transparent resin. The present disclosure is a polymerizable composition containing a polythiol compound having at least three mercapto groups and a polyiso(thio)cyanate compound. The polyiso(thio)cyanate compound contains only a polyiso(thio)cyanate compound having no aromatic ring, and a thiol equivalent ratio which is a measured value of a thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.900 or more and less than 1.000.