Abstract: The present invention comprises a radiation immobilizable epoxy formulation which displays improved initial and thermal cycle strengths when bonding different materials such as terephthalate polyesters and aluminum.The composition comprises:(1) a compound or mixture of compounds having a plurality of epoxy groups per molecule;(2) a polyoxyalkylene amine curative for the epoxy;(3) an imide compound selected from those having the formulas; and ##STR1## (4) a photocurable ethylenically unsaturated compound and photoinitiator, said ethylenically unsaturated compound and photoinitiator present in amounts which together are effective to cause the composition to become immobilized when irradiated with actinic radiation.

Abstract: Novel nitrogen-containing calixarene derivatives which are useful for sequestration of transition metals are represented by the formulae ##STR1## wherein m+n=4,6 or 8n=an integer 1-8m=an integer 0-7x=4, 6 or 8R.sup.1 is H, alkyl, aralkyl, alkoxy, aroyl, or alkoyl,R is aliphatic or aromatic, unsubstituted or substituted hydrocarbyl containing nitrogen,R.sup.4 is unsubstituted or substituted hydrocarbyl, carbonyl or aryl;R.sup.5 and R.sup.6 (which may be the same or different) are hydrogen, or unsubstituted or substituted hydrocarbyl.A process for separating transition metals from mixtures containing such metals comprises treating such a mixture with a calixarene derivative of formula I or II as defined above and separating therefrom a complex of the calixarene derivative and the transition metal. The complex may then be broken down, the transition metal recovered and the calixarene derivative recycled for further use in the process.

Abstract: In a process for priming a non-polar substrate such as a polyolefin for bonding with a cyanoacrylate adhesive, the use of an adhesion-promoting primer comprising at least one diazabicyclo or triazabicyclo compound selected from1,5-diazabicyclo[4.3.0]non-5-ene having the formula: ##STR1## 1,8-diazabicyclo[5.4.0]undec-7-ene having the formula: ##STR2## and 1,5,7-triazabicyclo[4.4.0]dec-5-ene having the formula: ##STR3## The primer also contains a solvent.

Abstract: Chemical compositions such as adhesive, sealing or coating compositions containing one or more microencapsulated ingredients are activated by directly contacting an ultrasonic device (2) to the composition (8) and sonicating the composition to rupture the microcapsules. The method may be carried out in a sonication chamber (1) in which the ultrasonic device (2) is immersed in the composition (8) and from which the composition flows before it sets. Alternatively the ultrasonic energy may be applied to the composition in situ.

Abstract: A sealant applicator comprising an enclosure body which is openable to receive structure defining a junction locus into its interior space. Means are provided for introducing a flowable sealant into the interior space of the enclosure, e.g., a fill tube open at one end and joined at its opposite end in closed-flow communication with the enclosure body, to deposit sealant material at the junction locus. A sealant application apparatus is also disclosed, comprising a sealant applicator of the aforementioned type, secured to the nozzle of a pressurized container containing the sealant material. The sealant applicator of the invention is particularly useful for applying electromagnetic interference- and RF leakage-blockingly effective sealant materials to cable junctions, e.g., a junction formed by a coaxial cable and a cable television junction box.

Abstract: Novel Calixarene derivatives useful as accelerators in cyanoacrylate adhesive compositions are represented by the formula ##STR1## wherein m+n=4,6 or 8n=an integer greater than or equal to 1/2 (m+n)R.sup.9 is aryl, hydrocarbylaryl, aryloxy, hydrocarbylaryloxy,substituted aryl, substituted hydrocarbylaryl, substituted aryloxy or substituted hydrocarbylaryloxy; or when R.sup.10 is aryl, hydrocarbylaryl,substituted aryl or substituted hydrocarbylaryl, R.sup.9 is hydrocarbyl,hydrocarbyloxy, substituted hydrocarbyl or substituted hydrocarbyloxy;R.sup.10 is H, hydrocarbyl, aryl, hydrocarbylaryl, substituted hydrocarbyl, substituted aryl or substituted hydrocarbylaryl;R.sup.11 is H, hydrocarbyl or substituted hydrocarbyl;provided that neither R.sup.9 or R.sup.11 is substituted with a basic N-containing group.

Abstract: Modular positive displacement apparatus for dispensing precise quantities of a fluid product including a dispensing unit and an actuator unit. A housing of the dispensing unit defines a reservoir which contains the product under pressure. Within the housing is a ball-type closure mechanism. A deformable diaphragm isolates the reservoir from the mechanism which actuates the valve to prevent undesirable entry of the product. The diaphragm may be of a number of shapes, depending upon the length of the stroke desired for the ball mechanism. The dispensing unit is readily removable from the actuator unit and can be readily replaced with another dispensing unit. Different nozzle sizes can also be accommodated. The extent of the closure opening is adjustable in discrete increments.

Abstract: A structure for providing electromagnetic wave energy primarily in the near infra-red region of the spectrum and having an electroluminescent lamp element which includes a red fluorescent dye material for emitting energy in both the visible and the near infra-red regions of the spectrum, and at least one layer of optical filter material having selected color filter characteristics for transmitting electromagnetic wave energy therefrom in a manner such that the amount of energy transmitted in the near infra-red region is substantially increased and the amount of energy transmitted in the visible region is substantially decreased.

Abstract: Oxacalixarenes of general formula I: ##STR1## wherein m=0-7 and n=1-8 with the proviso that m+n.ltoreq.8;R is hydrogen, halogen, or hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof, and R may be the same or different on each aryl group; andR' is hydrocarbyl, aryl, hydrocarbylaryl, hydrocarbyloxy, aryloxy or hydrocarbylaryloxy or a substituted derivative thereof.The invention also provides a method of preparing oxacalixarenes of formula I, and cyanoacrylate adhesive compositions including as accelerator an oxacalixarene of formula I.

Abstract: Polymerizable acrylic monomer adhesive systems comprising thirty to eighty percent by weight powdered aluminum filler material are disclosed. More specifically, the adhesive compositions comprise at least one polymerizable acrylate monomer system; an effective amount for initiation of a free radical initiator; and elemental (atomized) aluminum metal powder or powdered alumina.

Abstract: An auto-adhering one-component room temperature vulcanizable silicone sealant composition generally utilizing a di-substituted mixed oximealkoxysilyalkyl area adhesion promoter compound. The sealant has low odor, is non-corrosive to ferrous or aluminum substrates, has good adhesion to many types of substrates, and eliminates the need for a silicone resin primer. In addition, it exhibits surprisingly good adhesion to oil contaminated surfaces.

Abstract: Epoxy resin adhesives in which polyoxyalkylene polyamines are used as curing agents possess significantly improved initial adhesion and thermal shock resistance when mono- or bis-unsaturated cyclic imides are present, e.g. maleimides, bis-maleimides, bicycloheptene discarboximides, and bis-bicyloheptene dicarboximides.

Abstract: A composition and method for providing temporary masking of electrical and electronic components compatible with a high speed production operation. The composition is a radiation curable viscous liquid composition which provides minimal adhesion properties and substantial cohesive properties so that when cured, it can be readily removed in the manner of an adhesive tape. In particular, the radiation curable composition is characterized by cured properties a) of positive adhesion to the substrate to which the composition is applied, but insufficient adhesion to resist peeling forces applied by hand; and b) of sufficient cohesive strength to allow substantially all of the cured composition to be stripped mechanically or by hand in a single piece. Suitably the adhesion of the cured composition (22) to the substrate (16) as measured in the tensile shear mode, is between about 5 and 55 psi.

Abstract: An anaerobic sealant composition is employed to seal a pipe joint between pin and box members intended for use in petroleum drilling operations. The composition is applied to one or both of the members. The members are then joined and the composition cured into a solid form which bonds to the members and fills the space between them. The constituents of the composition can be selectively varied to control its lubricity which also affects the make up torque. Additionally, the concentration of the sealant composition can be selectively varied to control the break out torque of the joint to which it is applied, and preferably make the break out torque substantially greater than the make up torque. Excellent seals can be obtained using lower grade pipe, and the pin and box members can be made up with the application of lower torque to the assembly without reducing the sealing capabilty of the connection. The preferred composition also serves as a rust and corrosion inhibitor for the joint.

Abstract: A curable thiol-ene formulation comprising(a) a polythiol(b) a 'ene compound having a plurality of groups of the formula: ##STR1## where Q is CH.sub.2, CHCH.sub.3, C(Ch.sub.3).sub.2, O, S, NR.sup.1 or SO.sub.2 R.sup.1 is H or alkyl, and m is 0-10, and(c) an effective amount of a free radical initiator.

Abstract: Bis-maleimide compounds of the formula: ##STR1## where R' is an alkenylene or alkylene group; the R" groups are independently hydrocarbon or halohydrocarbon groups; and n is an integer, are hydrolytically stable compounds which may be thermally cured, or co-cured with other radically cureable monomers, to provide crosslinked polymer with good thermal properties. Compounds of the formula where n is above about 9 can be used as additives for radically cureable silicone formulations.

Abstract: Apparatus and a process for bonding a core member to a housing member, particularly, in instances in which the members do not mate in a contiguous fashion. The invention includes some manual and some semi-automatic functions, but is largely automated and computer controlled. A conveyor carries an assembly of an initially joined but unbonded core member and housing member along a series of discrete stations. After some preparatory steps in the process, an initial continuous bead of sealant is first applied on one side of the assembly to close off the space between the members and thereby form a cavity between them. The bead is cured, then the assembly is inverted and the cavity is filled with an anaerobic bonding material. A second continuous bead of sealant is then applied on the other side of the assembly to close off the remaining space between the members as well as to isolate the bonding material within the cavity.

Abstract: An instrument panel member comprising a multiple-ply back sheet of fiberglas reinforced material impregnated with a polyester resin, a multiple-ply front sheet of the same material and one or more electroluminescent (EL) lamp elements positioned therebetween. The overall structure is cured at a temperature and pressure selected to provide adequate curing without damage to the EL lamp elements and so as to minimize warpage of the final structure. The thickness of the back sheet is selected to accommodate the dimensions of the EL lamps and any electrical connectors used therewith while the thickness of the front sheet is normally much less and need only be such as to permit light from the EL lamps to be seen therethrough.

Abstract: A curable composition including a monomer having at least one curable acrylic functionality, an accelerator and optionally a free radical initiator, wherein the accelerator is a compound of the formula ##STR1## wherein R' is H or alkyl; when R' is H, R is substituted or unsubstituted cyclohexyl, alkenylamino, or C.sub.3 -C.sub.10 branched alkyl; andwhen R' is alkyl, R is aralkyl.Such compositions are useful as fixturing (e.g., threadlocking) compositions, and overcome the problems of poor solubility in organic non-polar media and temperature constraints associated with the use of saccharin per se as an accelerator in such compositions.Also disclosed is a corresponding method of polymerizing compositions containing acrylic-functional compounds, and a method of making the substituted saccharin compounds from the corresponding substituted benzene sulfonamide.Alkenylamido-substituted saccharin compounds and alkyl, aralkyl-disubstituted saccharin compounds are specifically disclosed.

Abstract: Cyanoacrylate compositions which employ fumed silicas treated with polydimethylsiloxane or trialkoxyalkylsilane are stable and exhibit an unexpectedly high thixotropic ratio. Such compositions are useful in adhesive applications or, when stabilized so as to prevent polymerizaton in contact with moisture, in latent fingerprint developing applications.