Abstract:
The invention relates to a luminous composition including hydraulic cement, a polymer, limestone and micro-capsules of an alkaline earth metal aluminate encapsulated in a light-transmitting resin, light-transmitting glass or combination thereof. The invention is also directed to a method of making a luminous composition. The method includes cooling an alkaline earth metal aluminate encapsulated in a light-transmitting resin, light-transmitting glass or combination thereof to a temperature of about -250 F to about -350 F and rendering the encapsulated aluminate into a powder comprising micro-capsules of the alkaline earth metal aluminate encapsulated in the light-transmitting resin, light-transmitting glass or combination thereof, wherein the micro-capsules range in size from about 0.7 µm to about 200 µm. The method then includes combining the aluminate powder with hydraulic cement, a polymer and limestone.
Abstract:
Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end use applications ranging from the purification of waste chemical and metal process streams to the separation and identification of proteins, peptides, and oligionucleotides.
Abstract:
The invention relates to coloured gloss pigments having specific particle dimensions comprising a transparent core of a silicon oxide of the composition SiO 0.03 to SiO 0.95 and, optionally, further coatings of silicon dioxide, carbon, a partially transparent metal and/or a dielectric of high refractive index, to a coating method suitable therefor wherein metallic silicon is vapour-deposited in the presence of a low oxygen partial pressure, to the use of such gloss pigments in pigmenting plastics, surface coatings, printing inks and cosmetic compositions, and also to pigmented compositions comprising such gloss pigments.
Abstract:
Novel organosilicon-treated cosmetic powders, for example, a pigment, extender pigment or filler are free from residual hydrogen, have a smooth feel, good skin adhesion, good color and spreadability and resistance to acids and alkalis. The treated powders are useful in cosmetics such as powder formulations, oil-in-water and water-in-oil emulsions, anhydrous make-up and lipstick. Treatment can be effected with a linear reactive alkylpolysiloxane having substitued in repeating units in the backbone of the molecule both cationic and anionic groups, for example aminoethylaminopropyl and alkoxy groups. The organosilicon compound can be adsorbed and chemically bonded to the surface of the powder by heat treatment. The alkylpolysiloxane compound can have a degree of polymerization of from 5 to 100, preferably 10-15. A process for producing the treated pigment is also disclosed as are cosmetic formulations made with the treated pigment. The inventive treatment is effective for a wide range of cosmetic powders including inorganic pigments, organic lakes and hard-to-coat powders such as mica-based powders, porous silica and the like.
Abstract:
The invention relates to core-shell structured silicone rubber graft polymers that comprise a core a) from a silicium-organic polymer that corresponds to the general formula (R2SiO2/2)x.(RSiO3/2)y.(SiO4/2)z, wherein x = 0 to 99.5 mole %, y = 0.5 to 100 mole %, z = 0 to 50 mole %, wherein R is the same or different and represents alkyl or alkenyl groups having 1 to 6 C atoms, aryl groups or substituted hydrocarbon groups and at last one shell c) from an organic polymer. The silicone rubber graft copolymers are obtained by producing the organic shell c) by radical polymerization at a temperature of not more than 65 DEG C and adding the initiator in at least two portions to the reaction vessel, with a further addition at least 2 minutes after start of the polymerization.
Abstract:
A wiper blade made of a compound having a methyl vinyl silicone polymer, a filler, and a friction-reducing additive is provided. The friction-reducing additive is present in an amount from between about 5 - 42 weight percent, preferably 11 percent. The average particle size of the friction-reducing additive is preferably less than 6 microns, thereby permitting extrusion of the compound in the shape of a wiper blade. Polytetrafluoroethylene is preferred as a friction-reducing additive, but other substances, such as boron nitride or graphite could be used. In the figure, a windshield wiper (11) according to the present invention includes a wiper frame (13), a spline member (15), and a wiper blade (17). The wiper blade includes each side (35) of a squeegee member (23) and a relatively thick retainer flange (27). The squeegee member (23) includes a relatively thin squeegee blade end (33). Spline member (15) is engaged by a claw (41). The wiper blade (17) removed moisture and debris from the windshield (45).
Abstract:
Heat−expandable microspheres which each has a structure comprising a shell made of a polymer and a blowing agent encapsulated therein, the shell containing an organosilicon compound; and a process which comprises suspension−polymerizing a polymerizable mixture comprising at least a blowing agent and a polymerizable monomer in an aqueous dispersion medium to thereby produce heat−expandable microspheres each having a structure comprising a shell made of the resultant polymer and the blowing agent encapsulated therein. In the process, the suspension polymerization of the polymerizable mixture is conducted in the presence of an organosilicon compound.
Abstract:
A method of coloring a cellulosic material which includes: a) dispersing pulped cellulosic material into water; and b) coloring the pulped cellulosic material by adding a cationic dispersion to the water, where the dispersion includes: (i) at least one pigment; (ii) water; and (iii) at least one quaternary salt of a styrene maleimide imide resin in an amount effective to disperse the pigment. The cationic dispersion may be prepared by (i) mixing, at 500 to 10,000 rpm, at least one pigment; water; and either (a) at least one a quaternary salt of a styrene maleimide imide resin or (b) at least one styrene maleimide imide resin in combination with at least one weak acid, thereby forming a dispersion premix; (ii) milling the dispersion premix in a mixer filled with ceramic, metal or glass beads for a period of time sufficient to reduce pigment agglomerates to primary particles, thereby forming a nonstandardized dispersion; and (iii) standardizing the dispersion against a color standard by adding water. The resulting cationic dispersion can be used to color cellulosic materials such as cotton and paper.
Abstract:
Die Erfindung zeigt einen Baustoffkörper oder -belag, der als wesentliche Bestandteile hydraulisches Bindemittel, Zuschlagstoffe und Glasgranulat enthält, wobei das Glasgranulat oberflächlich mit einer Schutzschicht beschichtet ist, die mindestens eine organische Siliciumverbindung und/oder mindestens einen Duroplasten enthält.
Abstract:
The present invention relates to the silanization or surface treatment of minerals with alkylsilanes and alkylsilane copolymers. More specifically, the present invention relates to alkylsilane copolymers useful for surface treating pigments or fillers. The alkylsilane copolymers comprise at least two different monomers. The copolymers find particular utility for the surface treatment of white pigments, such as titanium dioxide, for improving the dispersibility and processibility of the pigments when compounded with a polymeric material, in particular, when compounded with polyolefins.