Abstract: A building system includes a plurality of building tiles and/or connecters that are magnetically and releasably connectable to one another. The magnetic building tiles are comprised of a tile frame and a tile panel. The tile frame, by one approach, is comprised of two connectable frame portions or elements having magnets embedded therein. The first frame element and the second frame element are connectable to one another through a snap, clip, or another similar connection mechanism. The first and second frame elements are connectable around or into the tile panel, which is removable from the magnetic building tile. The tile panel or the tile frame has a channel into which the other of the tile panel or tile frame extends to secure the two pieces together.

Abstract: A hoop suitable for producing bubbles is constructed by forming an arcurate hollow loop by a connector, filling the hoop with a low surface tension liquid, feeding the liquid through a channel in the connector to a film forming element. The film is removed by an air flow through the film forming element to form a bubble. The liquid is moved through the hoop and into the film forming element by centrifugal force and subsequently removed by an air flow through the film forming element caused by rotation of the hoop by gyration of the hips.

Abstract: Atactic or amorphous poly-alpha-olefins containing 100%–65% propylene and optionally up to about 35% ethylene and/or up to about 15% of a C4–C8 alpha-olefin are prepared by polymerizing the monomer(s) at 180–450° F. and at a pressure sufficient to substantially maintain the monomer(s) in the liquid phase. The polymerization is carried out in the presence of catalyst system consisting of (a) a transition metal halide selected from the group consisting of (i) a titanium trihalide and an aluminum alkyl, (ii) a titanium halide on a comminuted magnesium halide support, and (iii) a titanium halide sandwich compound and (b) aluminum alkyl as a co-catalyst. No stereoregulator or only minor amounts of a stereoregulator are used.

Abstract: Atactic or amorphous poly-alpha-olefins containing 100%-65% propylene and optionally up to about 35% ethylene and/or up to about 15% of a C4-C8 alpha-olefin are prepared by polymerizing the monomer(s) at 180-450° F. and at a pressure sufficient to substantially maintain the monomer(s) in the liquid phase. The polymerization is carried out in the presence of catalyst system consisting of (a) a transition metal halide selected from the group consisting of (i) a titanium trihalide and an aluminum alkyl, (ii) a titanium halide on a comminuted magnesium halide support, and (iii) a titanium halide sandwich compound and (b) aluminum alkyl as a co-catalyst. No stereoregulator or only minor amounts of a stereoregulator are used.

Abstract: Atactic, amorphous, and tacky poly-alpha-olefins containing 100%-65% propylene and optionally up to about 35% ethylene are prepared by polymerizing the monomer(s) at 180-450° F. and at a pressure sufficient to substantially maintain the monomer(s) in the liquid phase. The polymerization is carried out in the presence of catalyst system consisting of (a) a transition metal halide selected from the group consisting of (i) a titanium trihalide and an aluminum alkyl, (ii) a titanium halide on a comminuted magnesium halide support, and (iii) a titanium halide sandwich compound and (b) aluminum alkyl as a co-catalyst.

Abstract: Processes for preparing a relatively concentrated aqueous solution of about 700-3000 ppm hyprobromous acid are provided. Hypochlorous acid solutions are prepared by either reacting chlorine gas with water or sodium hypochlorite with an acid. The resulting hypochlorous acid is then reacted with an alkali metal or alkaline earth bromide in order to form the hypobromous acid. Critical parameters are pH, Br/Cl mole ratio, and chlorine concentration. Under optimum conditions, substantially 100% conversion of bromide to hypobromous acid can be attained.

Abstract: An improved process for the polymerization of styrene is provided. The process comprises feeding styrene monomer and a mixture of peroxides, which decompose at progressively higher temperatures, into a prepolymerization vessel maintained at 200.degree.-270.degree. F. About 20-40% of the styrene in this vessel is converted to polymer (depending on temperature and residence time) and then fed to an extruder where the polymer is raised in temperature by passage through a heat exchanger or through the heated throat of the extruder. During this heating, the polymerization is completed in seconds to minutes in an extruder as the peroxides decompose in sequence as the temperature rises. A final devolatilization zone is provided to remove the final traces of monomer. The molten polymer is then passed through a die and stranded or hot die face cut.

Abstract: Provided is a process for the disinfection of raw water with chlorine dioxide and the removal of virtually all disinfection by-products. The process comprises contacting the water to be purified with a sufficient amount of gaseous chlorine dioxide to kill any microorganisms and thereby disinfect the water. The water is then stripped with air to remove ClO.sub.2 and any organic chemicals, with the resulting water then being contacted with a strong anion exchange resin to remove any by-products such as chlorite and chlorate ions formed in the disinfection process. The integrated process efficiently and effectively provides a water product which can contain essentially no chlorine dioxide, chlorite ions, chlorate ions or trihalomethanes, and which also is fully disinfected.

Abstract: Described is a high melt flow rate, high impact thermoplastic polymeric composition comprising the reaction product of a polymerized ethylene propylene diene monomer (EPDM) and an ethylene propylene copolymer and an effective amount of organic peroxide wherein the amount of EPDM ranges from about 2 to about 10% by weight of the composition and the ethylene propylene copolymer ranges from about 90 to about 98% by weight, wherein the reaction product can be characterized as having a no break condition according to the IZOD impact test.

Abstract: Provided is a process for the preparation of chlorine dioxide. The process comprises separately feeding compounds, which when reacted together yield chlorine dioxide, into a diluting water stream. The compounds react to thereby form chlorine dioxide. Shutoff valves are provided in the feed lines of the compounds, which shutoff valves are in cooperation with a supply monitoring system and a pH meter. The supply monitoring system monitors the feed lines of the compounds and the water stream. When the monitoring detects a loss in the supply of the water or one of the compounds, shutoff valves are closed to restrict any further flow of the compounds through the feed lines. The pH meter is located downstream of the reaction and monitors the pH of the chlorine dioxide solution formed by the reaction. When the pH is detected to be outside of a particular range, the shutoff valve are closed to restrict any further flow of the compounds through the feed lines.

Abstract: Provided is a novel composition which is the reaction product of chlorine dioxide and a polymer, and in particular, polymeric N-vinyl-.alpha.-pyrrolidone. The resulting product is an organically stabilized ClO.sub.2 composition which is a powerful microbiocide.

Abstract: A process for the high pressure polymerization of ethylene in a reactor in the presence of conventional free radical generating initiators, wherein the initiator material is admixed with certain additives in small concentrations to lower the polymerization initiation temperature.

Abstract: Propylene, for example, is polymerized with crystalline TiCl.sub.3 --AlCl.sub.3 and diethylaluminum monochloride catalyst at a rate of at least 300 lbs. polymer/lb. catalyst/hr. based on TiCl.sub.3 with partial H.sub.2 pressure of about 150 to about 1000 psi and sufficient total pressure to maintain propylene in liquid form. The resulting propylene homopolymer, while still containing active catalyst residues, is then reacted further with at least one additional alpha-olefin, preferably ethylene or ethylene-containing alpha-olefin mixtures in suitable amounts. The resulting waxy block copolymer has a melt flow of 40 to 400 as determined by ASTM-D-1238-62T at 230.degree.C.