Artist Porcupine Tree. Title Voyage Additional Artists. Record Weight G. Record Speed 33RPM. Record Speed Record Size 12". Multi Channel. Stereo 1. Picture Disc. Out of Print 1. Direct to disc. Creation Date Availability Discontinued. Format Vinyl. In the late s, Dr. John Creech and Dr. Maurice Johnson were the first to clearly link and recognize the carcinogenicity of vinyl chloride monomer to humans when workers in the polyvinyl chloride polymerization section of a B.
Goodrich plant near Louisville, Kentucky, were diagnosed with liver angiosarcoma, a rare disease. The link between angiosarcoma of the liver and long-term exposure to vinyl chloride is the only one that has been confirmed by the International Agency for Research on Cancer.
All the cases of angiosarcoma developed from exposure to vinyl chloride monomer, were in workers who were exposed to very high VCM levels, routinely, for many years. A U. Centers for Disease Control and Prevention CDC report concluded that the development and acceptance by the PVC industry of a closed loop polymerization process in the late s "almost completely eliminated worker exposures" and that "new cases of hepatic angiosarcoma in vinyl chloride polymerization workers have been virtually eliminated.
According to the EPA, "vinyl chloride emissions from polyvinyl chloride PVCethylene dichloride EDCand vinyl chloride monomer VCM plants cause or contribute to air pollution that may reasonably be anticipated to result in an increase in mortality or an increase in serious irreversible, or incapacitating reversible illness. Vinyl chloride is a known human carcinogen that causes a rare cancer of the Magnetic Charges - Phase IV - Phase IV (Vinyl). A front-page series in the Houston Chronicle claimed the vinyl industry has manipulated vinyl chloride studies to avoid liability for worker exposure and to hide extensive and severe chemical spills into local communities.
The environmentalist group Greenpeace has advocated the global phase-out of PVC because they claim dioxin is produced as a byproduct of vinyl chloride manufacture and from incineration of waste PVC in domestic garbage.
The European Industry, however, asserts [ citation needed ] that it has improved production processes to minimize dioxin emissions. Dioxins are a global health threat because they persist in the environment and can travel long distances. At very low levels, near those to which the general population is exposed, dioxins have been linked [ citation needed ] to immune system suppression, reproductive disorders, a variety of cancers, and endometriosis. Dioxins created by vinyl chloride production are released by on-site incinerators, flares, boilers, wastewater treatment systems and even in trace quantities in vinyl resins.
The largest well-quantified source of dioxin in the US EPA inventory of dioxin sources is barrel burning of household waste. A survey of international studies consistently identifies high dioxin concentrations in areas affected by open waste burning and a study that looked at the homologue pattern found the sample with the highest dioxin concentration was "typical for the pyrolysis of PVC".
Other EU studies indicate that PVC likely "accounts for the overwhelming majority of chlorine that is available for dioxin formation during landfill fires. The next largest sources of dioxin in the EPA inventory are medical and municipal waste incinerators. The report concludes that "no single material shows up as the best across all the human health and environmental impact categories, nor as the worst" but that the "risk of dioxin emissions puts PVC consistently among the worst materials for human health impacts.
The symbol, or ' SPI code ', for polyvinyl chloride developed by the Society of the Plastics Industry so that items can be labeled for easy recycling is:. Post-consumer PVC is not typically recycled due to the prohibitive cost of regrinding and recompounding the resin compared to the cost of virgin unrecycled resin. Some PVC manufacturers have placed vinyl recycling programs into action, recycling both manufacturing waste back into their products, as well as post consumer PVC construction materials to reduce the load on landfills.
The thermal depolymerization process can safely and efficiently convert PVC into fuel and minerals, according to the company that developed it. It is not yet in widespread use. It strives to be a closed loop system, recycling its key solvent and hopefully making PVC a future technical nutrient.
Categories: Plastics Vinyl polymers Dielectrics Thermoplastics. Read what you need to know about our industry portal chemeurope. Process for the production of morphologically uniform microcapsules and microcapsules that are produced according to this process. Method and apparatus for preparing microparticles using in-line solvent extraction. Induced phase transition method for the production of microparticles containing hydrophobic active agents. Edible films for administration of medicaments to animals, methods for their manufacture and methods for their use for the treatment of animals.
High drug loaded injectable microparticle compositions and methods of treating opioid drug dependence. Methods for modulating dissolution, bioavailability, bioequivalence and drug delivery profile of thin film drug delivery systems, controlled-release thin film dosage formats, and methods for their manufacture and use.
WOA2 en. Method and apparatus for minimizing heat, moisture, and shear damage to medicants and other compositions during incorporation of same with edible films. Therapeutic methods for the treatment of diabetes and related conditions for patients with high baseline HbA1c.
USDS1 en. Methods comprising continuous administration of a GLP-1 receptor agonist and co-administration of a drug. Method of incorporating water-soluble heat-sensitive therapeutic agents in albumin microspheres.
Modified hydrolyzed vegetable protein microspheres and methods for preparation and use thereof. Silver halide photographic process using a developer incorporated in microparticles. Composition comprising alumina particles coated with polymer of ethylenically unsaturated monomer. Microencapsulated 3-piperidinyl-substituted 1,2-benzisoxazoles and 1,2-benzisothiazoles. Microencapsulated 3-piperidinyl-substituted 1,2-benzisoxazoles 1,2-benzisothiazoles. EPA1 en. Compositions including particles including degradable material and anti-microbial agent.
Preparation of biodegradable, biocompatible microparticles containing a biologically active agent. Induced phase transition method for the production of microparticles containing hydrophilic active agents. Controlled release CGRP delivery composition for cardiovascular and renal indications.
Poly lactide-Co-glycolide based sustained release microcapsules comprising a polypeptide and a sugar. Poly lactide-co-glycolide based sustained release microcapsules comprising a polypeptide and a sugar. NLC en. Microspheres and microcapsules, a survey of manufacturing techniques Part II: Coacervation. EPB1 en. Microcapsules, process for their formation and transfer sheet record material coated therewith.
Chong-Kook et al. Preparation Magnetic Charges - Phase IV - Phase IV (Vinyl) evaluation of sustained release microspheres of terbutaline sulfate. Process for producing fine oil-containing microcapsules having strong protective shells and microcapsules produced thereby. DKB en. Preparation and dissolution pattern of Eudragit RS microcapsules containing ketoprofen. KRA en. These groups slowly release NO as water is absorbed into the polymer.
Owing to the potent anti-platelet aggregating activity of NO, the resulting polymers exhibit a dramatic decrease in platelet adhesion compared to blank films during both in vitro Magnetic Charges - Phase IV - Phase IV (Vinyl) in vivo experiments. New materials that contain immobilized Cu II -ligand sites are also being developed as biomimetic catalysts, to generate NO from endogenous nitrite and nitrosothiols already present in blood. Our efforts Magnetic Charges - Phase IV - Phase IV (Vinyl) the area of immunoassay technologies are focused on devising rapid, non-separation electrochemical-based immunoassay methods to quantitate a wide range of species, ranging from small environmental analytes e.
In a collaborative project with researchers in the Electrical Engineering Department, electrically conducting polymers coated on magnetic particles are being used to Magnetic Charges - Phase IV - Phase IV (Vinyl) a new generation of conductometric immunosensors for detecting large proteins as well as intact organisms, without any discrete separation of sample components.
Ralph N. Elving Collegiate Professor of Chemistry. Pietrzak and M. Major, D. Brant, M.
Rotten (Demo-Version) - Neuroticfish - WakeMeUp! (CD), Angel Light - This Ascension - Walk Softly, A Dream Lies Here (CD), China Roses Pt. Vi - Red Bathing Suit - China Roses (File, Album), Rob N Raz Feat. D-Flex - Mona Lisa (CD), Carmen McRae - What Has She Got? / Big Town (Vinyl), Theme From The 3rd Movement Of Sinister Footwear - Frank Zappa - You Are What You Is (Vinyl, LP, Alb, Winelight - Various - Jazzmasters 2 (CD), Windsong - Jorge Reyes & Piet Jan Blauw - Pluma De Piedra (CD, Album), Christploitation - Fear Factory - Mechanize (Vinyl, LP, Album), Tito Puente And His Orchestra - Mambos By Tito Puente (CD, Album), Filipinki - Wala - Twist (Vinyl), Le Petit Perroquet, Boas Festas - Luís Morais* - Best Of (CD), Straight From The Heart - Various - 101% Speed Garage Anthems (CD), Evita Cobo - Invitation (CD, Album)