C08G18/0852

BRANCHED RHEOLOGY MODIFIER WITH HYDROPHOBIC END-CAPPING GROUPS
20230331900 · 2023-10-19 ·

The present invention is a composition comprising a waterborne hydrophobically modified alkylene oxide urethane thickener comprising structural units of a) a polyalkylene glycol; b) a polyisocyanate; and c) a C.sub.14-C.sub.30-alkyl-O—(CH.sub.2CH.sub.2O).sub.n—H alcohol ethoxylate capping agent. The composition of the present invention is useful as a thickener in formulations requiring high levels of surfactant, such as detergents.

PRIMER FOR POLYURETHANE ADHESIVE

A method is provided for bonding substrates having dissimilar coefficients of thermal expansion, using a thermoset adhesive. The method involves a pre-cure step using radio-frequency energy, followed by a heat-curing step.

GOLF BALL
20230138800 · 2023-05-04 · ·

In a golf ball for professional golfers and skilled amateurs which has a single-layer core, a cover and at least one intermediate layer therebetween, the core is molded from a rubber composition that includes a base rubber, an unsaturated carboxylic acid and/or metal salt thereof, an organic peroxide and, in a specific weight ratio, water and sulfur, and has a hardness profile which satisfies certain specific conditions. The ball achieves an excellent distance on full shots with a driver (W #1) and a middle iron, and is designed for high controllability in the short game.

No-added formaldehyde binder for composite wood product and the composite wood product manufactured by the same

Disclosed a no-added formaldehyde composite wood product binder, a no-added formaldehyde composite wood product manufactured by same, and a preparation method for the composite wood product. The no-added formaldehyde composite wood product binder comprises an agent A and an agent B. The agent A is an isocyanate-based binder, and the agent B is an aqueous dispersion of polyester based aliphatic polyurethane and/or a modified polyester-based aliphatic polyurethane. The no-added formaldehyde composite wood product is formed under hot-pressing after a wooden and/or straw material is mixed with the no-added formaldehyde composite wood product binder. The composite wood product manufactured by the no-added formaldehyde composite wood product binder has excellent water-proof and mechanical properties and a good saw cutting performance, and the amount of isocyanate used is also reduced, thereby reducing costs.

WATER-DISPERSIBLE POLYISOCYANATE, AQUEOUS POLYURETHANE RESIN COMPOSITION, AND ARTICLE

A water-dispersible polyisocyanate contains an isocyanate group and a sulfone group. The water-dispersible polyisocyanate contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component. The polyisocyanate component contains a first polyisocyanate containing pentamethylene diisocyanate and a second polyisocyanate containing polyisocyanate having 6 or more carbon atoms. The hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound. The first polyisocyanate is contained in an amount of 40% by mass or more and 90% by mass or less relative to the total amount of the first polyisocyanate and the second polyisocyanate.

SYNTHESIS OF LINEAR POLYOXAZOLIDINONES USING URETDIONES AS DIISOCYANATE COMPONENT
20230348657 · 2023-11-02 · ·

A process for preparing a thermoplastic polymer involves reacting at least components (a) to (b), in the presence of a catalyst composition (c). Component (a) is an isocyanate composition containing at least one uretdione diisocyanate (a-i), and component (b) is an epoxide composition containing at least one diepoxide (b-i). The catalyst composition (c) contains at least one ionic liquid (c-i), preferably selected from 1-ethyl-3-methyl imidazolium bromide, 1-benzyl-3-methyl imidazolium chloride. 1-butyl-1-methylpiperidinium chloride, 1-ethyl-2,3-dimethylimidazolium bromide, 1-(2-hydroxyethyl)-3-methyl imidazolium chloride, butyl-1-methylpiperidinium acetate, or mixtures of two or more thereof. A thermoplastic polymer obtained or obtainable from the process is useful for the preparation of a fibre or a molded article or as a modifier for another thermoplastic material.

UREA URETHANE COMPOUNDS
20230348731 · 2023-11-02 ·

The presently claimed invention relates to urea urethane compounds obtainable by reacting toluene diisocyanate with a mixture of monohydroxy alcohols followed by reaction with a diamine. The presently claimed invention provides a process for preparing the urea urethane compounds, liquid compositions comprising the urea urethane compounds and the use of the urea urethane compounds as a thickening and thixotropic agent for water based and solvent based paint and coating formulations, lacquer, varnish, paper coating, wood coating, adhesive, ink, cosmetic formulation, detergent formulation, textile and drilling muds plaster formulations, PVC plastisol and cement formulations.

URETHANE RESIN COMPOSITION AND MOISTURE-PERMEABLE FILM
20220298290 · 2022-09-22 · ·

An object of the invention is to provide a urethane resin composition containing a biomass raw material and having excellent moisture permeability and excellent film strength. The invention provides a urethane resin composition containing a urethane resin (X), the urethane resin (X) containing, as essential raw materials, a polyol (A) that contains a polyol (a1) having an oxyethylene group, and a polyisocyanate (B), in which the polyol (A) further contains a polyester polyol (a2) containing a biomass-derived glycol (i) and a crystalline polybasic acid (ii) as raw materials, and the polyol (A) has a hydroxyl equivalent in a range of 400 g/eq to 600 g/eq. In addition, the invention provides a moisture-permeable film which is formed of the urethane resin composition.

Curable film-forming compositions demonstrating increased wet-edge time

The present invention is directed to a curable film-forming composition comprising: (a) a curing agent comprising reactive isocyanate functional groups; (b) a film-forming compound comprising functional groups reactive with the reactive isocyanate functional groups in (a); (c) a photo-latent catalyst; (d) a beta-diketone having a flash point higher than 60 C (140 F); and (e) a beta-diketone having a flash point lower than or equal to 60 C (140 F). The invention is further directed to methods of controlling the rate of cure and increasing the wet-edge time of a curable film-forming composition comprising an isocyanate functional curing agent, by adding to the curable film-forming composition a catalyst component comprising: (i) a photo-latent catalyst; (ii) a beta-diketone having a flash point higher than 60 C (140 F); and (iii) a beta-diketone having a flash point lower than or equal to 60 C (140 F).

SOLVENT BORNE THERMOSET POLYAMIDE URETHANE AND/OR UREA BASED COATINGS

The present invention relates to thermoset polymer solution, such as a polyurethanes and/or polyureas that include sufficient polyamide to give polyamide strength, adhesion, and durability, wherein the polymer solutions can be prepared as a one-component or two component solvent-borne coating composition. The polyamides give a harder, more chemical resistant, and often tougher thermoset, than similar water-borne polyurethanes rich in polyamide. The compositions of this disclosure differ from other polyamides as they have been formulated to be appropriate viscosity to use as coatings and then have crosslinking technology to form hard thermoset films.