Abstract: The invention relates to continuous processes for making cyclic dimethylsiloxane oligomers by reacting in situ methyl bromide, dimethyl ether and activated silicon particles in a direct process reaction zone to produce methylsiloxanes, wherein the proportion of dimethylsiloxane produced in said reaction zone is greater than 75 mole % of the methylsiloxanes produced and recovering the dimethylsiloxane from the reactions zone. The invention favors making cyclic dimethylsiloxane oligomers by this in situ direct reaction.

Abstract: A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.

Abstract: An enzyme-based aqueous cleaning and/or water clarifying solutions that provide improved cleansing and water clarifying capabilities and are exceptionally stabile to bacterial contamination. The invention also relates to the treatment of aqueous bodies and solid surfaces with the enzyme-based compositions of the invention in order to control the presence of contaminants. The objectives of the invention are achieved by including a small amount of a saponin in an aqueous enzyme-based composition containing a bacterial inhibiting stabilizer.

Abstract: A lighting strike coating composition for composites. The composite is multilayered and comprises (i) a prepreg containing layer, (ii) a lightweight, highly conductive metallic wire screen or foil layer, and (iii) a sheet of lightweight carrier fabric containing (a) on one side a coating of a highly filled, thermoset resin in which the filler comprises a multimodal combination of filler particles, and (b) optionally, on the other side an adhesive joining it to layer (ii); wherein the layers are bonded to each other.

Abstract: A eye exercising process and apparatus for an individual focusing on a viewable object, such as a computer monitor or television screen, and causing the object through means to slowly reciprocate or oscillate, generally at a predetermined rate, whereby the viewer's eye muscles are exercised without visual distraction.

Abstract: A multilayer composite comprising (i) a prepreg containing layer, (ii) a lightweight, highly conductive metallic wire screen or foil layer, and (iii) a sheet of lightweight carrier fabric containing (a) on one side a coating of a highly filled, thermoset resin in which the filler comprises a multimodal combination of filler particles, and (b) optionally, on the other side an adhesive joining it to layer (ii); wherein the layers are bonded to each other.

Abstract: A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.

Abstract: A waterborne structural adhesive bonding primer composition (a) that can be effectively applied to an adherend for structural adhesive applications, (b) that emits a VOC content of less than about 250 grams per liter, (c) is thermally stable, and (d) may be employed with 350.degree. F. (176.7.degree. C.) cure epoxy resin systems, which contains the combination of (i) a dialkanol amine adduct of an oxazolidinone modified polyglycidyl ether of a tris(hydroxyphenyl)alkane dissolved in a water vehicle, and (ii) a rigid ring substituted polyethylenically unsaturated carboxylate, carboxamide or carboximide intimately dispersed in the water vehicle and the dialkanol amine adduct of an oxazolidinone modified polyglycidyl ether of a tris(hydroxyphenyl)alkane. Formulations are described that contain chromate-free corrosion inhibitors.

Abstract: A lens system comprising a frame that fixes to a head of a user of the lens system. Associated with the system are first and second magnifiers that are movable with respect to each other and with respect to the frame. The first and second magnifiers have respective oculars and objectives. The magnifiers are associated with a distance measuring means for measuring the distance from the user to an object to be viewed by the user. They provide a connected control unit with a signal representative of the distance. Driving means connected to the control unit are provided. The control unit provides the driving means with a control signal in response to the signal received from the distance measuring means. There are first displacement transferring means connected to the driving means for displacing the objectives with respect to the first and the second ocular. The focal length of each magnifier is adapted to the distance measured by the distance measuring means.

Abstract: A lightning strike coating composition for composites. The composite is multilayered and comprises (i) a prepreg containing layer, (ii) a lightweight, highly conductive metallic wire screen or foil layer, and (iii) a sheet of lightweight carrier fabric containing (a) on one side a coating of a highly filled, thermoset resin in which the filler comprises a multimodal combination of filler particles, and (b) optionally, on the other side an adhesive joining it to layer (ii); wherein the layers are bonded to each other.

Abstract: Described are a class of chemiluminescent compound characterized by the presence an aryl ester, thioester or amide of a carboxylic acid substituted heterocyclic ring that is susceptible to chemical attack (such as by oxidic attack) to dissociate the heterocyclic ring to a transient compound. The heterocyclic ring is ring carbon-bonded to the carbonyl of the ester, thioester and amide moiety and possesses a heteroatom in an oxidation state that allows chemiluminescence by dissociating a compound ("intermediate") that decays to produce chemiluminescence, at the carbon bonded to the carbonyl. The aryl ring or ring system is ring carbon-bonded to the oxygen, sulfur or nitrogen of the ester, thioester or amide, as the case may be, and contains at least three substituents on a six-member ring. The substitution on the six-member ring comprises three or more groups acting in concert to sterically and electronically hinder hydrolysis of the ester, thioester or amide linkage.

Abstract: A clip system for clamping a panel element against a rebate comprises a bolt which is movable between a first position for clamping the panel element against a rebate and a second position for releasing the panel element, and an operating mechanism for moving the bolt. According to the invention, depending on the position of the bolt, there is a variable transmission ratio between the operating mechanism and the bolt, with a reduction which increases as the bolt in a path near the first position nears said first position. Operation of the bolt consequently requires little force and can be carried out with a short movement. The clip system can be achieved by a simple construction requiring little maintenance.

Abstract: A chemiluminescent label compound and conjugate containing the same, in which the compound involves a fused ring system comprising a(i) hetercyclic ring as a fused member thereof in which the heterocyclic ring contains(a) one or more nitrogen heteroatoms in the ring;(b) at least one saturated or unsaturated ring in fused state with the heterocyclic ring;(c) an available carbon atom in the heterocyclic ring that is adjacent to a carbon forming a fused ring with the heterocyclic ring; and(d) at least one substituent that is peri relative said available carbon of the heterocyclic ring, which substituent serves to enhance the hydrolytic stability of the chemiluminescent label compound; and(ii) a leaving group coupled to the heterocyclic ring through a carbon adjacent to a fused ring carbon such that the leaving group and heterocyclic ring join to form a difunctional carboxy-containing linkage in which the carboxy carbon is directly bonded to the carbon of the heterocyclic ring adjacent to a fused ring carbon,(a)

Abstract: The process of reproducibly making a wholly spuncasted, non-truncated, ballasted soft contact lens containing a compound anterior surface. The process comprises spincasting a polymer-forming, lens forming monomeric mixture in a cavity mold having a surface that is offset to allow for generation of a prismatic ballast, a compound curvature and a central axis that is symmetrical to the peripheral edge of the lens being formed. This is done by rotating the monomer mixture in the mold whereby the mixture replicates the mold's surface while at the same time undergoes polymerization and forms a prismatic lens with the central axis of its posterior surface symmetrical to its peripheral edge, a corneal bowl free of the compound curvature and possessing a thickness profile that is asymmetrical with respect to its geometric center.

Abstract: A novel chemiluminescent labeling compositions comprising an ester, thiolester or amide covalently and jointly bonded to (1) a carbon of a heterocyclic ring or ring system that is susceptible to attack by peroxide or molecular oxygen and (2) an aryl ring or ring system wherein the heterocyclic ring or ring system is distinguished by a heteroatom thereof in an oxidation state which causes the attacked carbon atom to form an intermediate that decays and produces chemiluminescence; the aryl ring or ring system contains at least three substituents on a six-member aromatic hydrocarbon that together sterically and electronically hinder hydrolysis of the linkage, which substituents involve ortho substituent groups on the aryl in conjunction with --NO.sub.2 meta or para substituents thereon.

Abstract: A novel chemiluminescent labeling compositions comprising an ester, thioester or amide covalently and jointly bonded to (1) a carbon of a heterocyclic ring or ring system that is susceptible to attack by peroxide or molecular oxygen and (2) an aryl ring or ring system wherein the heterocyclic ring or ring system is distinguished by a heteroatom thereof in an oxidation state which causes the attacked carbon atom to form an intermediate that decays and produces chemiluminescence; the aryl ring or ring system contains at least three substituents on a six-member aromatic hydrocarbon that together sterically and electronically hinder hydrolysis of the linkage, which substituents involve ortho substituent groups on the aryl in conjunction with meta and/or para substituents thereon that possess an electron withdrawing capacity characterized as a .sigma..sub.p value greater than 0 and less than 1.

Abstract: A chemiluminescent labeling composition comprising an ester, thioester or amide covalently and jointly bonded to (1) a carbon of a heterocyclic ring or ring system that is susceptible to attack by peroxide or molecular oxygen and (2) an aryl ring or ring system wherein the heterocyclic ring or ring system is distinquished by a heteroatom thereof in an oxidation state which causes the attacked carbon atom to form an intermediate that decays and produces chemiluminescence; the aryl ring or ring system contains at least three substituents on a six-member aromatic hydrocarbon that together sterically and electronically hinder hydrolysis of the linkage, which substituents involve ortho substituent groups on the aryl in conjunction with meta and/or para --SO.sub.2 -- substituents thereon.

Abstract: A chemiluminescent compound possessing an aryl ester, thioester or amide of a carboxylic acid substituted heterocyclic ring or ring system that is susceptible to chemical attack to dissociate the heterocyclic ring to a transient compound. The heterocyclic ring is ring carbon-bonded to the carbonyl of the ester, thioester or amide moiety and possesses a heteroatom in an oxidation state that allows chemiluminescence by dissociating a compound at the carbon bonded to the carbonyl that decays to produce chemiluminescence. The heterocyclic ring or ring sustem contains bonded to it through an organic moiety, a functional group that is functionally reactive with an active hydrogen containing compound. The aryl ring is a ring or ring system that is ring carbon-bonded to the oxygen, sulfur or nitrogen of the ester, thioester or amide, as the case may be, and contains substituents on a six-member ring that act to sterically and electronically hinder hydrolysis of the ester, thioester or amide linkage.

Abstract: A novel chemiluminescent labeling compositions comprising an ester or thiolester covalently and jointly bonded to (1) a carbon of a heterocyclic ring or ring system that is susceptible to attack by peroxide or molecular oxygen and (2) an aryl ring or ring system wherein the heterocyclic ring or ring system is distinquished by a heteroatom thereof in an oxidation state which causes the attacked carbon atom to form an intermediate that decays and produces chemiluminescence; the aryl ring or ring system contains at least three substituents on a six-member aromatic hydrocarbon that together sterically and electronically hinder hydrolysis of the linkage, which substituents involve ortho substituent groups on the aryl in conjunction with quaternary ammonium meta or para substituents thereon.