摘要:
Die vorliegende Erfindung betrifft Zusammensetzungen aus A) silangepfropften, weitgehend amorphen Poly-α-olefinen, die kein organisch gebundenes Chlor enthalten, B) Keton-, Keton/Aldehyd- und/oder Harnstoff/Aldehyd-Harzen und/oder deren hydrierten Folgeprodukten, C) Lösemitteln und D) gegebenenfalls Hilfs- und/oder Zusatzstoffen und deren Verwendung als Primer zur Verbesserung der Haftung von Beschichtungsstoffen wie beispielsweise Farben, Lacken, Kleb- und Dichtstoffen, Tinten sowie Druckfarben auf Kunststoffen, Holz, Papier, Metallen, Glas, Keramik und Beton.
摘要:
A self customizable dental appliance adapted to lie within the mouth of a person including occlusal pads with a connecting arch or a u-shaped style base with upstanding labial and lingual walls. The appliance is formed of a semi-crystalline polyolefin polymer or crystallizable blend. In one embodiment, the appliance is formed of elastomeric propylene-ethylene polypropylene, optionally including high density polypropylene. An optional occlusal lifting pad can be used in the self-customizable dental appliance.
摘要:
According to an aspect of the invention, a polymerized form of formaldehyde is available in granular form containing a polymerized form of formaldehyde, such as paraformaldehyde, a buffer, such as sodium phosphate dibasic anhydrous, and a stabilizer, such as hydroxymethyl cellulose, or hydroxypropyl methyl cellulose. When added to an aqueous solvent, the paraformaldehyde can dissolve in alkaline solution, and depolymerizes into a formaldehyde solution containing a stabilizer. Optionally a second member of the buffer pair or another buffer or pH adjuster can be used. The stabilized depolymerized formaldehyde solution is then ready for use, or can be modified by addition of other substances, such as sodium phosphate monobasic monohydrate. Additionally, an additional buffer may be included in the granular mixture to increase the rate at which the solid dissolves and depolymerizes.
摘要:
A method for fabricating an optical device that uses a robust purified adhesive as a bonding agent is disclosed. Impurity particles greater than or equal to 0.1 microns are removed from liquid precursor materials prior to polymerization or cross-linking. The impurity particles are separated from the precursor by applying a high gravitational centrifugal force. The purified adhesive is used to bond together optical components disposed in the optical path of the device. The purified adhesive resists damage from high-powered lasers because impurity particles that would otherwise absorb and scatter laser light are removed from the adhesive.
摘要:
The present invention provides an electrically conductive sheet molding compound composition adapted for electrostatic painting comprising a resin mixture including about 20 to about 60% by weight of thermoplastic resin based on the total weight of said resin mixture, the thermoplastic resin being selected from the group consisting of styrene-butadiene rubber, polystyrene, saturated polyester resin, and mixtures thereof; fibrous reinforcing material; and conductive material. The conductive material is added to the sheet molding compound composition in a sufficient quantity to render an article molded with said composition with structural integrity and electrically conductive enough to be electrostatically painted.
摘要:
A thermosetting resin composition comprising at least a cycloaliphatic ether oligomer represented by the general formula (I): wherein m and n are each 0 to 30 and 2