Abstract:
A coating composition is described comprising a polymer resin binder and optically variable thin film dichroic pigment flakes. The pigment flakes have a multilayer thin film interference structure comprising a metal reflector layer having first and second parallel planar surfaces and, disposed on at least one of said first and second planar surfaces, at least one transparent dielectric layer. The coating composition further comprises an interference mica pigment having an interference color that is the same as one of the dichroic colors of the optically variable thin film pigment. This coating composition can be used to prepare a variety of coatings, especially color-plus-clear composite coatings such as those used in the automative industry.
Abstract:
A coating composition is described comprising a polymer resin binder and optically variable thin film pigment flakes. The pigment flakes have a multilayer thin film interference structure comprising a metal reflector layer having first and second parallel planar surfaces and, disposed on at least one of said first and second planar surfaces, at least one transparent dielectric layer. The coating composition further comprises a metallic pigment of the same color as the metal in the metal reflector layer of the multilayer thin film interference structure. This coating composition can be used to prepare a variety of coatings, especially color-plus-clear composite coatings such as those used in the automotive industry.
Abstract:
A trilobal synthetic polymeric thermoplastic fiber has a single void extending approximately axially central, a total cross-sectional void area between about 10 and 20 percent void, a modification ratio between about 2 and about 6, and an arm angle between about 5 DEG and about 50 DEG .
Abstract:
A coating composition comprises a polymer which is comprised of the residue of a sterically-hindered monomer. The presence of this sterically-hindered monomer results in the production of a coating which is resistant to environmental etching.
Abstract:
Fiber-reinforced and non-reinforced thermoplastic honeycomb is prepared in a continuous manner one half cell at a time with the aid of formers (1, 4) by laying down a corrugated web of thermoplastic, selectively fusing the node-antinode demes by means of a toothed roller (9), retracting the lowermost set of formers (1) through the use of linear bearings (7) attached to pillar blocks (8), raising the lowermost formers by means of pistons (6) an amount at least equal to the thickness of the fused node-antinode surface, and repeating the process until a honeycomb of the desired depth is prepared. Shaped honeycomb parts are prepared wherein the webs of fiber-reinforced or non-reinforced thermoplastic are slit in a predetermined manner prior to laying on the formers such that the finished honeycomb may be separated by hand into parts having a predetermined geometry.
Abstract:
A high density polyurethane foam composition which exhibits low smoke upon combustion is the reaction product of a reaction of a resin blend and an isocyanate in the presence of reduced levels of melamine as a flame retardant.
Abstract:
Thus, there is provided according to the present invention polyol compositions comprising (A) a polytetramethylene ether glycol, and (B) a difunctional and/or trifunctional active hydrogen compound-initiated polyoxyalkylene polyether polyol having a degree of unsaturation of not greater than 0.04 milliequivalents per gram of said polyether polyol.
Abstract:
Curable coating compositions are described comprising a) a polymer resin comprising active hydrogen-containing functional groups, b) a curing agent having groups that are reactive with said functional groups on (a), and c) a compound comprising at least one carbamate group that is the reaction product of: 1) a hydroxyl group that is the result of a ring-opening reaction between an epoxy group and an organic acid group, and 2) cyanic acid or a compound comprising a carbamate group.
Abstract:
A process is disclosed for producing an aqueous solution of free hydroxylamine. A solution obtained by treating an hydroxylammonium salt with a base is treated with water or water vapour at a temperature >/= 80 DEG C, so as to separate the solution into an aqueous hydroxylamine fraction and a salt fraction. This process is soft and easy to implement on a large scale. The risk of decomposition is minimised because of the low thermal stresses, the low hydroxylamine concentration and the short dwelling time during implementation of the process.
Abstract:
Provided herein is a composition, system and method containing a hydrophobic lubricant and a water soluble solvent. The invention may also contain water. Specific solvents include alkyl or alkoxy pyrrolidones such as N-methyl-2-pyrrolidone which are added to or mixed with loom lubricators. Also provided is a method for inhibiting the increase m viscosity of lubricants used in polyolefin processing methods. Polyolefin compounds such as polyethylene, polypropylene and polybutylene are some of the compounds used in the invention. Provided are solutions, methods and systems used in manufacturing processes that use polyolefins. The manufacturing processes include weaving, extruding and molding.