Abstract: N-substituted, N-(polysubstituted-4-piperidinyl)-.alpha.-(3,5-dialkyl-4-hydroxyphenyl)-.a lpha., .alpha.-disubstituted acetamide ("3,5-DHPIPA") generates an exceptionally stable hindered acetamide aroxyl radical which is far more stable than the "blue aroxyl radical" derived from 2,4,6-tri-tert-butyl-phenol, which radical was heretofore adjudged the standard of superior stability and resistance to degradation due to heat, oxygen and light, the compound having been specifically disclosed as a uv-stabilizer. The hindered aroxyl amide radical which is at least ten times more stable than the "blue aroxyl radical" heretofore deemed stable, may be generated by 3,5-DHPIPA compounds prepared by a peculiarly effective synthesis known as the ketoform reaction. This ketoform reaction is unexpectedly well-adapted to produce the 3,5-DHPIPA compounds which we have been unable to produce by any other synthesis known to us.

Abstract: A simple, easily affordable and portable, yet rugged and reliable, collapsible anchor is disclosed for use with small water craft, particularly those susceptible to damage by sharp edges or protuberances of a conventional non-collapsible anchor stower aboard. When snagged, the anchor is self-tripped by a force exerted in a direction upstream from where the craft was anchored. The force trips a release mechanism which allows a pair of flukes to rotate in an "A"-shaped spring yoke in which they are held, and unsnag the anchor. The flukes are nonrotatably disposed on a fluke shaft which is journalled in the lower terminal portions of the yoke's two spring arms. The upper terminal portions (apex) of the yoke are held together by a fulcrum pivot (shoulder bolt) means.

Abstract: The problem of recycling scrap radial tires is addressed by providing many uses for a laminate made by bonding two or more belt sections of a radial tire, the sidewalls of which have been cut away, the tire then cut open, and de-treaded. The result is a multi-ply structure which is sensibly rigid in all three directions because each belt ply in a belt is reinforced with cords at an angle, the cord angle in one belt ply being opposed to the angle in the other. A slat, bar, or beam, formed with plural belts is essentially rigid in a direction at right angles to its longitudinal axis, because for bending to occur, one belt must be in tension and the other in compression. Neither condition is favored because of the opposed cord angles and belt geometry. Though essentially rigid because of the cord geometry, the amount of rubber in the laminate allows it to be deformable relative to wood or steel having the same thickness.

Abstract: Oligomers of polyarylene polyethethers (PAPE) having a mol wt Mn in the range from 1000 to about 10,000 are converted to monofunctionalized macromers, so as, in the first instance, to provide a reactive double bond (for example, a vinylbenzyl group) at only one end of the PAPE; and, in the second instance, to provide a triple bond (benzylethynyl group) at only one end of the PAPE. The macromer may be a polysulfone, a polyketone, or a copolymer containing both sulfone and ketone-containing units; or, the macromer may be monofunctionalized PPO. The synthesis of macromers with terminal double bonds is carried out with a fast and quantitative modified Williamson etherification of the PAPE with an electrophilic haloalkyl reactant ("HAR") such as chloromethylstyrene ("C1MS") in the presence of a major molar amount (more than 50 mol % based on the number of moles of OH group originally present in the oligomer) of a phase transfer catalyst such as tetrabutylammonium hydrogen sulfate ("TBAH").

Abstract: An essentially single stage reaction has been discovered in which a disubstituted ethanolamine, that is, a 2,2'-substituted-2-aminoethanol, may be reacted with a haloform and a carbonyl containing compound selected from the group consisting of monoketones and benzaldehyde, in the presence of an alkali metal hydroxide, and optionally in the presence of a phase transfer catalyst, to produce an alkali metal hydroxyethylaminoacetate ("HEAA") which has N-adjacent C atoms on which there are a total of at least three substituents (hence "polysubstituted"), and one or both pairs of substituents on each N-adjacent C atom may be cyclized. The HEAA may be cyclized by the action of a mineral acid to produce a 2-morpholone hydrochloride which is characterized by having a total of at least three substituents on the N-adjacent C atoms of the ring. The 2-morpholone so produced may be reduced to a polysubstituted aminodiol.

Abstract: A carcass for a self-sealing pneumatic tire is constructed by starting with an extruded thin flat strip of puncture sealant both surfaces of which are detackified. The strip is place on a building drum and its upper surface is wiped clean so that an inner liner may be adhered to it. Thereafter, the carcass is conventionally completed with superimposed successive layers of belts, and tread along with bead rings, etc. The carcass is then cured in a conventional curing press so that the sealant is cured by contact with the curing bladder. The curing sealant is not restrained in any way, but does not flow. Alternatively, a laminate of the sealant is formed with the inner liner, with only the exposed surface of the sealant detackified so that it adheres neither to the building drum nor to the curing bladder. The detackifier remains on the sealant.

Abstract: A known "spark cup process" may be operated without the spark cup if the violent fluctuations in the melt surface with which the electric arc is struck are accommodated so as to allow the electric arc to be maintained substantially continuously. Controlling the dynamic profile of the melt surface without a spark cup allows continuous operation of the electric arc which generates enough plasma to permit addition of as much as 1000 lb/hr of a spray of superheated feed material to a flowing stream of melt which assimilates the feed material.

Abstract: A split tire mold having a tread ring in which provision is made for venting air circumferentially across the inner surface of the tread ring so that the air escapes from the parting line of the mold halves, dispenses with widely used, conventional, radially protruding vent stubs. The air is vented through "butterfly-shaped" or "double-wedge-shaped" arch-vents which provide passage for trapped air above each tread block of the tread as it is moved against the inner surface of the tread ring. The shape of the arch-vent passages and the angulation of the wedges is critical to the effectiveness of the arch-vent which forms an arch-vent bridge of cured rubber in a cured tire. The configuration of the bridge allows as cured tire to be easily removed from the mold cavity without leaving a broken-off piece of the rubber bridge to plug the arch-vents. This arch-vent design leaves unobtrusive flat-sided, narrow wedge-shaped pieces of rubber as the arch-vent stubs, tapered in two directions.

Abstract: A stabilizer compound for synthetic resinous materials is a tri-substituted triazine in which each substituent is a N.sup.4 -methylated 2-keto-1,4-diazacyclohexane connected to the triazine ring through an alkylene bridge. This bridge permits efficient methylation of the N.sup.4 atom in every substituent under conditions which yield crystals having at least 90% purity. These crystals may be further purified to at least 95% purity at which purity level they contain less than 500 ppm ash. The stabilization effect of 95% pure compound in a polyacetal is such that, even with an ash content of 50 ppm, it has better stabilization properties than its 99.2% pure precursor (the non-methylated tri-substituted triazine) with an ash content of 10 ppm, as evidenced by lower formaldehyde evolved and better color retention, that is, developing less color in a water white sample after testing at 259.degree. C.

Abstract: A deck of cards is coded by marking each card on its face with a bar code which is essentially invisible to the human eye, but can be read by a detector matched to the source of wavelength of the light used to irradiate each card as it is passed over the surface of a portable housing which houses the detector and the associated reading means. Appropriate hardware is also housed in the housing to process the coded information read. The software provided stores a number of predetermined "hands" which are to be dealt. It can also deal a random deal, more random than can be dealt by human shuffling of the deck. A method is provided to deal a preselected "deal" to a chosen number of players, typically four, the apparatus indicating to the human dealer to which location each card is to be dealt.

Abstract: A comb-shaped polymer ("comb" for brevity) of a polymerizable olefinically unsaturated monomer, preferably a vinyl, styryl, or acryloyl monomer, and a macromolecular monomer of a polylactone having an acryloyl or metharcryloyl "head" is effected at low temperature in an emulsion or suspension polymerization process. The processes are capable of producing a comb with a hydrocarbon backbone and pendant polyactone chains, which comb has a number average molecular weight of at least 10,000 without the use of a co-solvent. A comb with such high mol wt is not produced with a conventional solution polymerization process. A compatible blend is produced of a comb having a backbone incompatible with a synthetic resin, on the condition the polyactone chains are long enough to be compatible in the resin. A compatible blend of first and second resins, irrespective of whether they are compatible with each other, is also produced using a comb in which the backbone is compatible with one of the resins.

Abstract: A water massage apparatus is provided for use in a spa which is provided with at least one inlet port through which is flowed an aerated jet of water under pressure. The conventionally provided casing or annular locking ring used to couple a conventional water jet device, is replaced with a hollow bushing which couples an aspirating adapter to a recessed receptacle in the interior wall of the spa. The adapter is connected to a head by a flexible plastic hose, the head being provided with apertures through which aerated water is flowed. The head is provided with a pendant finger which provides a valve means for selectively placing the apertures in the head in open flow communication with the jet of water exiting the receptacle in the spa's wall.

Abstract: A staged process is disclosed for forming a tri-substituted triazine ring in which the substituents are cyclic amines referred to as hindered amines. A prior art process for making such amines in a reaction mixture of aqueous and organic phases has been modified to produce a stabilizer with desirable whiteness, at the same time avoiding the loss of the cyclic amine reactant which is water-soluble. Conversion of the amine to yield at least 90% of the tri-substituted product having at least 90% purity allows the reaction to be commercially significant despite the high cost of the reactants. The staged process is preferably conducted in two sequences in two reactors, with an intermediate step in which the aqueous saline and basic solution from the first sequence is withdrawn. In the first sequence, a mono-chloro intermediate ("MCI") is formed at ambient temperature, but below 100.degree. C. to yield a colored solution.

Abstract: A simple construction of a two-component adhesive film, external wound dressing, comprises a backing sheet of thin, preferably elastomeric and water vapor-permeable film protected by a release layer comprising two release sheets. The sheets not only protect the adhesive coating on the front face of the film, but also are instrumental in allowing the film to be precisely positioned over a wound, then gradually tensioned with a force no greater than the peel strength for the release sheets, while the dressing is applied. This feature of the dressing allows it to be smoothly applied over the wound with a predetermined amount of force while conforming the film to the contours of an injured body. This features is the result of providing each first and second release sheets with a relatively wide margin, at least 1.25 cm (0.5 inch) wide. The peel strength for each release sheet is essentially identical.

Abstract: Excellent color stabilization as well as fiber integrity is obtained in bright sunlight and at relatively high temperature, in polyolefin (PO) articles pigmented with phthalocyanine pigments, by combining the pigment with two `large molecule` primary stabilizers, the first a hindered amine light stabilizer (HALS) and the second a metal-organic phosphonate. The first contains at least one triazine ring, and each substitutable position on each triazine ring is substituted with an oxo-piperazinyl group; the second is a 2.1 complex of an alkylated phenol phosphonate with a Group VIII or Group IIA metal, e.g. a metal bis[O-alky(3,5-di-t-butyl-4-hytdroxybenzyl)] phosphonate ("35-DHBP"). Stabilization of the PO's color is obtained for as long as the PO articles themselves are stabilized by the combination of primary stabilizers. With the combination, phthalocyanine pigmented articles are not only thermooxidatively and light-stabilized, but there is exceptionally low color fade.

Abstract: The operation of a fluid-bed reactor in which the catalyst has a proclivity to stickiness deleterious to efficiently carrying out a reaction of the gaseous components fed to the reactor, is controlled by monitoring the fluctuations in temperature at various locations in the bed, and computing the standard deviation of temperature at predetermined intervals of time. When the fluid-bed consists essentially of a supported catalyst performing at peak efficiency, near which it has a proclivity to "stickiness", slight fluctuations, less than 1.degree. F., of operating temperature are correlatable to the quality of fluidization and the risk of an uncontrollable upset in the reactor.

Abstract: Excellent stabilization to bright sunlight, is obtained in polypropylene (PP) fibers pigmented with Red 144, by combining the pigment with N-(substituted)-1-(piperazin-2-one alkyl)-.alpha.-(3,5-dialkyl-4-hydroxyphenyl)-.alpha.,.alpha.-substituted acetamide ("3,5-DHPZNA" for brevity). Stabilization of the red color is obtained for as long as the PP fibers themselves are stabilized by the 3,5-DHPZNA. 3,5-DHPZNA is a known hybrid stabilizer having a hindered amine N-(substituted)-1-(piperazin-2-one alkyl) group at one end, and a hindered phenol (3,5-dialkyl-4-hydroxyphenyl) group at the other. This particular hybrid, containing a piperazinone group, combined through a disubstituted alpha carbon atom of the acetamide in a single molecule, affords the advantages of each group with respect to its stabilization of the fiber against degradation, but without the expected adverse interaction of each group with Red 144 pigment. With 3,5-DHPZNA and Red 144 pigment, essentially no secondary stabilizer is necessary.

Abstract: A process is disclosed for making a 1,4-diazacyclo-heptan-2-one from a mixture (`first` mixture) of alkylated 1,3-propanediamines one of which (referred to as the `target` diamine) has substituents at specified positions and contains (i) a terminal primary amine group adjacent to a disubstituted C atom (hence, referred to as having a `hindered` N atom), and (ii) a terminal secondary amine group. The target diamine, other diamines and oligomeric polyamines in the first mixture, are made by alkylating an acyclic (`starting` ) 1,3-propanediprimaryamine having the hindered N atom. The first mixture of alkylated diamines, preferably containing a major molar proportion of the target diamine relative to any other alkylated diamines, is reductively alkylated, which unexpectedly results in the reductive alkylation of only the unwanted diamines, allowing the target diamine which is not reductively alkylated, to be removed from the mixture of reductively alkylated diamines.

Abstract: A process is taught for recovering a white reaction product of a cyanuric halide with an amine reactant (white being indicative of the product's high purity), in high yield. In the absence of a solvent for either reactant, the first step comprises reacting the cyanuric halide, as a finely divided solid, with a liquid amine which is to provide a saturated heterocyclic amine group, such as a polysubstituted piperazinone, piperazine, or piperidine as the substituent for each of the three halogen atoms of the cyanuric halide used. This solventless process carried out under essentially anhydrous conditions, with a large molar excess of the amine reactant chosen, not only shortens the long time required to make the desired tri-substitution in a conventional solvent process, but also obviates using a pressurized reactor.

Abstract: A non-elastomeric epoxy having a mol wt less than about 10,000 and curing agent therefor ("epoxy-curing-agent"), both of which (epoxy/epoxy-curing-agent) are liquid while at curing temperatures, provide a continuous liquid phase in which a polyimide (PI) generally, and a bisimide (BI) in particular, may be homogeneously dispersed to form a fluidized dispersion. In one embodiment, the less viscous epoxy/epoxy-curing-agent is the dispersive medium (continuous phase) and the PI the dispersed or discontinuous phase. In the more preferred embodiment, the epoxy/epoxy-curing-agent and PI are miscible, forming a single liquid phase in which the PI is homogeneously dispersed. In each embodiment, the epoxy is essentially unreactive with the PI. Upon curing the epoxy in a first stage, to form a polymeric epoxy matrix (also referred to as "cured epoxy resin" herein) at a temperature below 150.degree. C.