Patent classifications
C08G18/4833
FOAMED POLYURETHANE COMPOSITIONS
Disclosed are low-viscosity foamable polyurethane-forming compositions containing a polyol composition having monomeric and higher polyol components and optionally a polyhydroxylated aromatic compound; a polyisocyanate or latent polyisocyanate component or a combination thereof; a blowing agent; and optionally a cyclic carbonate having one or more hydroxyl groups. The monomeric and higher polyols each contain three or more hydroxyl groups, the higher polyol containing residues of the monomeric polyol and optionally residues of the polyhydroxylated aromatic compound, the residues being linked by one or more carbonate and/or ether groups. The Disclosed foamable polyurethane-forming compositions may contain the polyol compositions disclosed; an isocyanate functional component; and a blowing agent. The foamable compositions afford high strength, heat-resistant, low to moderate density foamed-polyurethane compositions useful in a variety of applications including construction, vehicle and packaging applications.
THERMOPLASTIC POLYURETHANE FILM AND MULTILAYER FILM
Problem to be Solved
A thermoplastic polyurethane film that is capable of achieving a stress relaxation property regardless of the type of polyol, while having good pasting workability, as well as a multilayer film using the same, is provided.
Solution
The thermoplastic polyurethane film is constituted by a reaction product obtained by using dicyclohexylmethane diisocyanate (H.sub.12MDI). This enables the thermoplastic polyurethane film and the multilayer film to have a good stress relaxation property regardless of the type of polyol, and to have excellent pasting workability.
COATED RESIN PARTICLES AND METHOD FOR PRODUCING COATED RESIN PARTICLES
One aspect of the present invention relates to a coated resin particle including: a water-absorbent resin particle; and a coating layer that coats at least a part of a surface of the water-absorbent resin particle, in which the coating layer contains a water-soluble component in which a solubility in 100 g of water is in a range of 1.0 g or more and 150 g or less at 25° C.
HEAT-STABILISING AGENT
Polyurethane heat-stabilizing agents may help resist temperature changes and preparations of an aqueous composition which may be resistant to temperature changes due to the use of such an agent (P). The viscosity may be thermally stabilized by such an aqueous composition in a wide temperature range and for many shear gradient values.
PHOSPHONIUM-CONTAINING POLYURETHANE COMPOSITIONS
The present disclosure describes phosphonium-containing polyurethane compositions, coating compositions, and coated fabric media. In one example, a phosphonium-containing polyurethane composition can include an aqueous liquid vehicle and polyurethane particles. The polyurethane particles can include a polyurethane polymer devoid of end cap groups. The polyurethane polymer can include a polyurethane backbone having a polymerized diamine chain extender forming a portion of the backbone. The polyurethane polymer can also include side chain groups along the polyurethane backbone. The side chain groups can collectively include aliphatic phosphonium salts and polyalkylene oxide groups.
CURABLE COMPOSITION, URETHANE RESIN, AND HEAT DISSIPATION MEMBER
The present invention aims to provide a urethane resin and a heat dissipation component each having excellent thermal conductivity and excellent flexibility. The present invention relates to a curable composition containing: a polyol (A); a polyisocyanate (B); at least one dispersant (C) for inorganic fillers selected from the group consisting of a phosphate ester (C1), a C12-C24 fatty acid (C2), a sucrose fatty acid ester (C3), a sorbitan fatty acid ester (C4), and a glycerol fatty acid ester (C5); and an inorganic filler (D), the curable composition satisfying the following requirements (1) to (3) that (1) the polyol (A) contains a polyalkylene glycol (A1) having a chemical formula weight or number average molecular weight of 1000 or less in an amount of 50% by weight or more based on the weight of the polyol (A); (2) the inorganic filler (D) is contained in an amount of 70 to 97% by weight based on the weight of the curable composition; and (3) the total weight of the dispersant (C) for inorganic fillers is 1 to 5 parts by weight per 100 parts by weight of the inorganic filler (D), the phosphate ester (C1) being represented by the following formula (1):
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SILYLATED POLYMER-BASED MOISTURE-CROSSLINKABLE COMPOSITION
The present invention relates to a moisture-crosslinkable composition comprising: at least one polymer (A) comprising at least one alkoxysilane group; at least 25% by weight of at least one carbonate filler (B) relative to the total weight of said composition; at least one compound chosen from bis(alkoxysilane)s or tri(alkoxysilane)s (C) having a molar mass ranging from 250 to 1000 g/mol; at least one crosslinking catalyst (D);
said composition being characterized in that it comprises a plasticizer content of less than or equal to 1% by weight relative to the total weight of the composition.
Water soluble waxy support materials for three-dimensional printing applications
In one aspect, urethane waxes are described herein comprising a reaction product between monofunctional polyethylene oxide and polyisocyanate. In some embodiments, the urethane waxes are combined with other components to provide support materials for use in three-dimensional printing applications. A support material ink, for example, comprises a urethane wax comprising a reaction product between monofunctional polyethylene oxide and polyisocyanate. The support material ink, in some embodiments, further comprises monomeric curable material, oligomeric curable material, or mixtures thereof.
Aqueous Polyurethane Resin Dispersion
An aqueous polyurethane resin dispersion, the polyurethane resin is obtainable by reacting an allophanate based isocyanate according to general formula I or II, optionally a polyether diol, a polyol containing a quaternary N-atom or tertiary amino group and a polyol selected from the group consisting of polyester polyol, polyether polyol, polycarbonate polyol, a polyacrylate polyol, a polyolefin and a polyamide polyol. The polyurethane resin is suitable as a resin in treatment liquids of substrates and images made by inkjet printing.
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THERMOPLASTIC POLYURETHANE FOAM AND IMPACT RESISTANT COMPOSITE LAMINATE COMPRISING THE SAME
Provided are a thermoplastic polyurethane foam and an impact resistant composite laminate. The thermoplastic polyurethane comprises a structural unit represented by Formula (I):
##STR00001## wherein each R independently is an alkylene group having 2 to 8 carbon atoms or —CH.sub.2CH.sub.2OCH.sub.2CH.sub.2— or —CH.sub.2CH.sub.2OCH.sub.2CH.sub.2OCH.sub.2CH.sub.2—; n is a number from 2 to 13; and the structural unit has a Mn ranging from 700 g/mole to 2500 g/mole. The impact resistant composite laminate comprises a base layer and a first impact resistant layer formed by the thermoplastic polyurethane foam, and the first impact resistant layer overlaps the base layer.