Patent classifications
C08G18/6607
Tin-free catalysis of silane-functional polyurethane crosslinkers
The present invention relates to a composition at least comprising A) an adduct of isocyanatosilanes with hydroxy-functional compounds and B) a tin-free catalyst, and also to a coating composition comprising at least the composition and to the use of the coating composition.
POLYURETHANE FOR COSMETIC PREPARATIONS, AND METHOD FOR PRODUCING POLYURETHANE FOR COSMETIC PREPARATIONS
This invention provides: a polyurethane for cosmetic preparations, which is obtained by reacting (A) a polyester polyol having two or more hydroxyl groups in each molecule, (B) an aliphatic diol consisting of two hydroxyl groups and an aliphatic hydrocarbon group having 3 to 8 carbon atoms, (C) a carboxyl group-containing diol which has a carboxyl group and two hydroxyl groups in the molecule and has a molecular weight of 100 to 300, (D) a diisocyanate containing at least one compound selected from the group consisting of isophorone diisocyanate, hexamethylene diisocyanate and dicyclohexylmethane-4,4′-diisocyanate, and (E) a chain extender which contains at least one compound selected from the group consisting of water, ethylene diamine and propylene diamine and which has a weight average molecular weight of 50,000 to 300,000; a production method; and a cosmetic preparation which contains this polyurethane for cosmetic preparations.
WATER-BASED POLYURETHANE RESIN AND MANUFACTURING METHOD THEREOF
A water-based polyurethane resin and a method for manufacturing the same are provided. The method for manufacturing the water-based polyurethane includes: a preparation step of a prepolymer, a dilution step of the prepolymer, a water dispersion and chain extension step, and an acrylic synthesis step. The method further includes mixing polyol and polyisocyanate to obtain a prepolymer, and diluting the prepolymer by adding acrylic monomer in the prepolymer. In the water-based polyurethane resin, at least one of the polyhydric alcohol, polyisocyanate, and the acrylic monomer includes a compound with a cyclic structure.
Two-component solventless adhesive compositions and methods of making same
A solventless adhesive is disclosed, the adhesive comprising an isocyanate component comprising at least one isocyanate prepolymer that is the reaction product of reactants comprising at least one isocyanate, at least one polyol, and a branched alkane diol, and a polyol component comprising at least one polyol and a branched alkane diol. The branched alkane diol can comprise a single side alkyl chain, such as 3-methyl-1,5-pentanediol, 2-methyl-1,3-propanediol, and combinations thereof. Further, a method for forming a laminate is disclosed, the method comprising forming a solventless adhesive composition comprising a branched alkane diol, applying a layer of the adhesive composition to a surface of a film, bringing the layer into contact with a surface of another film to form a laminate, and curing the adhesive composition. Still further, a laminate formed by the method is disclosed.
Two-component solventless adhesive compositions and methods of making same
A solventless adhesive is disclosed, the adhesive comprising an isocyanate component comprising at least one isocyanate prepolymer that is the reaction product of reactants comprising at least one isocyanate, at least one polyol, and a branched alkane diol, and a polyol component comprising at least one polyol and a branched alkane diol. The branched alkane diol can comprise a single side alkyl chain, such as 3-methyl-1,5-pentanediol, 2-methyl-1,3-propanediol, and combinations thereof. Further, a method for forming a laminate is disclosed, the method comprising forming a solventless adhesive composition comprising a branched alkane diol, applying a layer of the adhesive composition to a surface of a film, bringing the layer into contact with a surface of another film to form a laminate, and curing the adhesive composition. Still further, a laminate formed by the method is disclosed.
Aircraft Windows
The present invention provides an aircraft window including a polyurethane including a reaction product of components including (a) about 1 equivalent of at least one polyisocyanate; and (b) about 1 equivalent of 1,4-cyclohexane dimethanol based upon the about 1 equivalent of the at least one polyisocyanate, and other aircraft window compositions.
LAMINATED POLYESTER FILM
The invention provides a laminated polyester film that is highly transparent, is resistant to blocking, and has excellent adhesion to a hardcoat layer and UV ink. The laminated polyester film contains a polyester film substrate and a coating layer on at least one surface of the polyester film substrate. The coating layer is formed by curing a composition containing a urethane resin with a polycarbonate structure, a crosslinking agent, and a polyester resin. The maximum value of a nitrogen element distribution curve based on element distribution measurement of the coating layer in the depth direction is present in the vicinity of the surface of the coating layer on a side opposite to the polyester film substrate. The polycarbonate structure is present in a suitable amount at the surface of the coating layer on a side opposite to the polyester film substrate.
Low VOC Polyurethane Adhesive
A low-VOC, two-component polyurethane adhesive is provided. The polyurethane adhesive has an A-side that includes an isocyanate and a non-reactive plasticizer, and a B-side that includes an aliphatic polyester polyol, a non-polyester polyol, and a urethane catalyst. The A-side and the B-side are reacted at a volume ratio of 1:1 and formulated at an NCO/OH index within the range of 0.90 to 1.10. The polyurethane adhesive is solvent-free and is particularly suitable for adhering a polymeric membrane to a substrate.
AQUEOUS POLYURETHANE FUNCTIONAL MASK SUBSTRATE AND APPLICATION THEREOF
Disclosed by the present invention are an aqueous polyurethane functional mask substrate and an application thereof. Two kinds of water-based polyurethane dispersions are used as the main components of the mask substrate. The transdermal penetration and absorption of functional ingredients such as whitening, moisturizing and anti-aging ingredients in facial mask products are promoted by means of the special cross-linked structures of polyurethane films. During use, a mask is evenly applied to the face; and after the mask dries, the entire mask may be removed directly or removed after being moistened using water. The mask substrate according to the present invention is also applicable to body masks such as a hand mask, a neck mask and a back mask.
Low VOC polyurethane adhesive
A low-VOC, two-component polyurethane adhesive is provided. The polyurethane adhesive has an A-side that includes an isocyanate and a non-reactive plasticizer, and a B-side that includes an aliphatic polyester polyol, a non-polyester polyol, and a urethane catalyst. The A-side and the B-side are reacted at a volume ratio of 1:1 and formulated at an NCO/OH index within the range of 0.90 to 1.10. The polyurethane adhesive is solvent-free and is particularly suitable for adhering a polymeric membrane to a substrate.