Abstract: A portable personal computer printer adapted for printing heavy print media such as tags and label stock by drawing the media vertically through the printer without substantial bending of the media.

Abstract: An aromatic polyphthalatecarbonate resin having a small percentage of phthalate units therein exhibits improved resistance to hazing and yellowing upon exposure to ultraviolet radiation. The polyphthalate carbonate resin is derived from the reaction products of a phthalate compound, a dihydric phenol and a carbonate precursor.

Abstract: Functionalized polyphenylene ether compositions are provided which are particularly useful for effecting compatibility for a blend of polyphenylene ether resin and a polyamide resin. The functionalized-polyphenylene ether is the reaction product of a polyphenylene ether polymer and a compound having the general formula (i)--Z--(ii), wherein group (i) is a polyphenylene ether-philic moiety such as acyl chloride, group (ii) is a polyamide-philic moiety such as dicarboxylic acid anhydride, and Z is a divalent hydrocarbon radical providing a covalent linkage between groups (i) and (ii). An example of the compound having general formula (i)--Z--(ii) is trimellitic anhydride acid chloride.

Abstract: A method is described for the purification of crude human interferon from solutions containing it, which comprises:a) the complete adsorption of the crude interferon in a column of siliceous material which has previously been disinfected with an aqueous solution of formaldehyde;b) the washing of the column with non-pyrogenic, sterile, deionized water;c) the removal of the extraneous residual proteins by the elution of the column successively with a 1.4 M aqueous solution of NaCl in non-pyrogenic, sterile, deionized water, and with an aqueous solution of acetic acid having a molar concentration of 0.001 M to 0.003 M;d) the elution of the interferon from the column with an aqueous solution of acetic acid having a molar concentration of from 0.01 to 0.03 M and finally,e) the recovery and lyophilization of the elution containing the purified interferon.

Abstract: A solid polymeric electrolyte is constituted by a solid solution of an ionic compound in an organic matrix of polyether nature, constituted by a mixture consisting of:a high-molecular-weight poly-(ethylene oxide); andthe product of polymerization of a vinylether having the formula:R--(O--CH.sub.2 --CH.sub.2).sub.n --O--CH.dbd.CH.sub.2wherein:R means the methyl or ethyl radical; andn is an integer within the range of from 2 to 6,with said polyvinylether having a number average molecular weight within the range of from about 1,000 to about 10,000 and the weight ratio of said poly(ethylene oxide) to said polyvinylether being within the range of from 10:90 to 90:10.

Abstract: Flame-resistant thermoplastic branched polycarbonates of high molecular weight are prepared from:(1) a carbonate precursor;(2) at least one dihydroxyaromatic compound of formula: ##STR1## where: R is a single bond, or a substituted or non-substituted linear or branched C.sub.1 -C.sub.5 alkylene radical, or a group chosen from O, S, SO.sub.2 and CO;X and Y, which may be the same or different, are H or CH.sub.3 ;m and n, which may be the same or different, are whole numbers from 1 to 4;(3) at least one halogenated carbonyl compound of formula: ##STR2## where: Z is a group chosen from O, S, and NH;R.sub.1 and R.sub.2, which may be the same or different, are chlorine or bromine;R is hydrogen or chlorine or bromine or a C.sub.1 -C.sub.3 alkyl radical;p is zero or 1 or 2.

Abstract: A drip-type coffee maker adapted for use in a microwave oven. The coffee maker includes a container which can dispense coffee directly into a receptacle therebelow and has an upper reservoir for holding water, a lower filter element for holding coffee grounds and a partition, which separates the reservoir and coffee filter element. The partition includes a portion thereof adapted to close and open communication between the reservoir and the filter element, and a non-toxic heat responsive sealing substance adapted to releasably seal the partition portion in the closed position until water in the reservoir reaches a temperature for brewing coffee.

Abstract: Expandable thermoplastic resin microparticle compositions comprising low intrinsic viscosity polyphenylene ethers and a method for producing foam therefrom are disclosed.

Abstract: Novel polyphenylene ether-polyamide compositions having improved compatibility, elongation and impact properties as well as improved processability are prepared comprising one or more polyphenylene ethers, one or more polyamides and a property improving silane derivative compound having in the molecule both (a) at least one silicon bonded to a carbon through an oxygen link and (b) at least one ethylenic carbon-carbon double bond or carbon-carbon triple bond and/or functional group selected from the group consisting of an amine group or a mercapto group, with the proviso that the functional group is not directly bonded to a silicon atom. These compositions may further comprise a polymeric impact modifier therefore and/or an inorganic reinforcing additive and/or other polymers including alkenyl aromatic polymers.

Abstract: A method of synthesis of a partially retro-inverso peptide incorporating at least one malonyl residue of formula (III) ##STR1## wherein R represents the side chain of an .alpha.-amino acid, is described which is characterized in that said malonyl residue is incorporated by condensing a 5-substituted-2,2-dimethyl-1,3-dioxane-4,6-dione of formula (VI) ##STR2## wherein R' is the side-chain R wherein the functional groups, if any, are suitably protected, with an amino acid, amino acid amide, peptide fragment, or pseudo-peptide fagment wherein the terminal carboxyl group, if present, and the possible side-chain functionalities are suitably protected and the reactive amino group is tri-alkyl-silylated.The new compounds of formula (VI) and a process for the preparation of a partially retro-inverso tuftsin analog which involves use of said method and said intermediate are also described and claimed.

Abstract: A liquid composition stable during storage and polymerizable radically into organic glasses having a high refractive index, containing:(A) from 20 to 80% wt of a mixture of monomer and oligomers of a carbonic allyl derivative representable by the formula (I): ##STR1## where: X=halogen (except fluorine);a and be independently assume the values 1 or 2;n assumes values from 1 to 5 on condition that at least 10% by weight of the mixture consists of carbonic allyl oligomer derivatives (n>1); and(B) from 80 to 20% by weight of a liquid monomer copolymerizable with the component (A) and chosen from diallyl isophthalate, diallyl terephthalate, triallyl cyanurate and triallyl isocyanurate.

Abstract: This invention relates to a device for preventing yarn loop formation and for saving the suctioning yarn on winding units. This device keeps the yarn under tension during the knotting and cone doffing steps. The device has a movable bar which is positioned adjacent to the upper end of a pirn during the unwinding process and which is shifted by an actuator to contact the pirn before the yarn is stopped. This is accomplished by keeping the yarn under tension from the pirn cone to a yarn-tensioning disc at the beginning ot the knotting and doffing cycles to prevent loops from forming. Additionally, this device limits the yarn consumption of the knotting cycle. By frictionally clamping the free end of the yarn with an anti-loop device, yarn is suctioned by a free yarn end feed nozzle in a shortened length thus limiting the amount of yarn removed and lost during a knotting cycle.

Abstract: The method and apparatus for atomizing and spraying liquid substances serves in particular to produce clouds for inhalation purposes. The liquid substance to be atomized is compressed to such an extent that it decreases in volume and that it is then explosively released into the normal atmosphere. Due to its high internal pressure, the liquid substance bursts into extremely small particles.

Abstract: A protection system for the basemat of reactor containment buildings in nuclear power stations. The system comprises a structure located in a cavity below the reactor vessel and submerged in water. The structure comprises staggered layers of stainless steel beams for intercepting molten material escaping from the reactor vessel during meltdown of the reactor core. The system is designed so that the molten material is distributed in thin layers over wings of the beams and transfers its heat to the surrounding water thus affording a rapid quenching of the molten core and safeguarding the integrity of the basemat.

Abstract: The present invention relates to a process for piloting the distribution of thread on a package under formation, in a collection unit for collecting synthetic threads, to prevent ribboning from forming during the continuous overlapping of different winding layers. The present invention further relates to an apparatus to implement the above process. The process comprises setting, instant by instant, values of operational parameters during the thread winding in such a way that the collection unit operates along descending portions of lines. Each line is defined by a constant and non-integer "winding ratio" "K". The line portions are contained inside a range bounded by a maximum threshold value and a minimum threshold value of the winding angle. The maximum and minimum threshold values are symmetrical to the optimum value. The process further relates to piloting a traverse cam to fix any dislocation of the descending line portions at a distance higher than, or at least equal to, a prefixed reference value.

Abstract: Copolymers are prepared by the interaction of a melt mix comprising a high molecular weight poly(alkylene arylate) resin with a high molecular weight polycarbonate or polyester carbonate and a catalyst, such as diphenyl phosphate. The copolymers are tough and are useful as molding compounds and are capable of maintaining dimensional stability at temperatures approaching their singale glass transition temperature. The copolymers are characterized by having substantially no content of polyester homopolymer and a ratio of arylate linkages to dihydric phenol arylate linkages of not substantially less than 20:1.

Abstract: New photochromatic and thermochromatic compounds of the spiro-oxazepin-oxazine class are definable by the general formula (I): ##STR1## where the substituents R and R.sub.1 -R.sub.12 are as defined in the description.The process for the preparation of the compounds (I) is described, as is their use as photochromatic and thermochromatic agents.

Abstract: A control valve includes a first valve having a cylinder and a piston arranged in the cylinder. The piston defines in the cylinder a pressure receiving chamber and first and second output pressure chambers, and is moved by pilot pressure applied to the pressure receiving chamber to change volumes of the first and second output pressure chambers. The output pressure chambers are connected to each other through a throttle control valve which generates pressure difference corresponding to a rate of change in volumes of the output pressure chambers, between the output pressure chambers. A main valve is connected to the throttle control valve and includes an inlet port, output ports, and a valve member located between the input and output ports. The valve member is moved in accordance with the pressure difference between the first and second output pressure chambers to control hydraulic pressure output from the output ports.