摘要:
The present invention discloses a stable aqueous polyurethane dispersions comprising a reaction product of a water dispersible isocyanate-terminated polyurethane prepolymer (A), an aqueous polyurethane dispersion (B) and water, and a method wherein a water dispersible isocyanate-terminated polyurethane prepolymer (A) is dispersed in at least one aqueous polyurethane dispersion (B) and water, and reacted at about 35.degree. C. to about 95.degree. C. until substantially free of isocyanate. The inventive dispersions are useful in adhesives, coatings, binders, primers and sizers.
摘要:
A method for the preparation of sulfonated polymer compositions wherein water dispersible isocyanate-terminated polyurethane prepolymers are reacted in the presence of aqueous polyvinyl dispersions which may contain active hydrogen atoms. The inventive compositions develop interpenetrating polymer networks, which may form core-shell type structures, and are characterized as having enhanced mechanical and adhesion properties.
摘要:
A method for the preparation of sulfonated polymer compositions wherein water dispersible isocyanate-terminated polyurethane prepolymers are reacted in the presence of aqueous polyvinyl dispersions which may contain active hydrogen atoms. The invention is further directed to a water-based sulfonated polyurethane polyvinyl hybrid latex wherein a sulfonated polyurethane is used as a seed for the polymerization of ethylenically unsaturated monomers and a method for preparing the same. The inventive compositions develop interpenetrating polymer networks or may form core-shell type structures, and are characterized as having enhanced mechanical and adhesion properties.
摘要:
The present invention is directed to aqueous polyurethane dispersions and aqueous polyurethane-acrylic dispersions, especially polymer dispersions formed from norbornane diisocyanate. The dispersions, and the dried polymers therefrom, are useful adhesives that provide enhanced bond strength when subjected to increased thermal and mechanical stress. Additionally, the inventive dispersions form polymers having increased adhesion compared to similar polymers based on cycloaliphatic diisocyanates which are free of a methylene bridge.
摘要:
A transparent force sensor for use in touch panel displays (touch screens) and method for fabricating the same are disclosed. The transparent force sensor is capable of detecting touch by measuring local pressure applied by a touch input to a display area of the touch screen.
摘要:
A device and method eliminates a shadowing effect on a touch input receiving device. The method includes receiving a touch input on a top layer that includes first conducting lines, a first current passing through the first conducting lines. The method includes determining a location of the touch input as a function of the first current passing through an intermediate layer as a second current to second conducting lines orthogonal to the first conducting lines of a bottom layer. The intermediate layer disposed between the top and bottom sides is configured as a resistive layer applying a resistance value to the first current upon the touch input being received. The first current continues through the first conducting lines along a remainder thereof as a third current after passing through the intermediate layer to eliminate the shadowing effect.
摘要:
A system for displaying the listings of files and/or folders in one of a plurality of different views (e.g., gallery view or list view). In particular embodiments, the system determines which of the views to display in the listings in based on: (1) the types of files to be displayed; (2) a specified preference of a content sharer; and/or (3) a specified preference of a content recipient. Various embodiments are particularly useful for displaying lists of files that a content sharer shares with a content recipient via a URL within the context of a synched file sharing system.
摘要:
A scoop has a bowl and a handle. The bowl has a bowl edge and a bowl width. The handle has a proximal handle edge connecting to the bowl edge. The handle has a distal handle edge opposite the proximal handle edge. The handle has a handle width. The handle has a clip with a clip base which connects the clip base to the distal handle edge. The clip protrudes from the distal handle edge toward the proximal handle edge. The clip has a free edge opposite the clip base. The handle width is from about 50% to about 100% of the bowl width.
摘要:
A method of forming a protective layer on a substrate (202) such as glass includes depositing an a magnesium oxide layer (108, 208) and amorphous oxide material (106, 206) on the substrate (202), either simultaneously or in succession, and at a temperature below 300 degrees Centigrade. The amorphous oxide layer (106, 206) may crystallize in some embodiments when deposited.
摘要:
A method for forming a thermal silicon nitride on a semiconductor substrate is disclosed. This method allows formation of thermal silicon nitride that is thick enough for a FET gate dielectric, but has a low thermal budget.