Search for dissertations about: "isocyanate polyuretan"

Found 5 swedish dissertations containing the words isocyanate polyuretan.

  2. 1. Polyurethane - occupational exposure, biomarkers and symptoms

    Author : Margareta Littorin; Avdelningen för arbets- och miljömedicin; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; spray; polyurethane; nose; metabolites; lung function ; lower airways; inflammation; heat; glue; genetic polymorphism; di isocyanate; Antibodies; biomarkers; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin; symptoms;

    Abstract : Isocyanates may cause occupational asthma, rhinitis, and hypersensitivity pneumonitis. However, the mechanisms behind initiation of the disorders and the relations between exposure and effect are insufficiently elucidated. Means to biomonitor exposure and risk would be valuable. READ MORE

  4. 2. Chemical and Clinical Studies of Isocyanate Contact Allergy with focus on diphenylmethane diisocyanate

    Author : Malin Engfeldt; Yrkes- och miljödermatologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; venereologi; Dermatologi; venereology; Dermatology; occupational; allergic contact dermatitis; polyurethane;

    Abstract : Isocyanates are highly reactive compounds used in the production of polyurethane. Exposure to isocyanates is mainly associated with respiratory disorders, but may also result in allergic contact dermatitis. Reports describing contact allergy to isocyanates are few in number and it has been considered a rare phenomenon. READ MORE

  5. 3. Airborne Isocyanates, Aminoisocyanates and Amines

    Author : Daniel Karlsson; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Environmental health; Miljökemi; Environmental chemistry; amines; aminoisocyanates; isocyanates; polyurethane; exposure; occupational; thermal degradation; chemiluminescence; mass spectrometry; Liquid chromatography; gas chromatography; Miljömedicin; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

    Abstract : Isocyanates are used in the production of polyurethane (PUR). Exposure to isocyanates is associated with respiratory disorders and may occur during production or processing of PUR. During thermal degradation of PUR, amines and aminoisocyanates are formed in addition to isocyanates. READ MORE

  6. 4. On the Determination of Reactive Compounds in Aerosols

    Author : Mårten Spanne; Ergonomi och aerosolteknologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; industrial hygiene; isocyanates; particles; sampling; aerosols; pollution control; Miljöteknik; kontroll av utsläpp;

    Abstract : Many sources of airborne contaminants have always been present in various work environments. With the development of thermosetting plastic systems, the use of reactive chemical compounds was greatly increased and thus also the risk of exposure to reactive and potentially hazardous compounds. READ MORE

  7. 5. Foam, Fire and Free Volume - Chemical and Physical Aspects of Porous Polymers

    Author : Anna Andersson; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Poisson ratio; vibration damping; acoustic impedance; cell morphology; hyperbranched polymer; Polymer foams; free volume; positron annihilation; supercritical fluid.;

    Abstract : Automotive seating has been under continous development since it was described for the first time in 1885. At that time one could read about a “padded leather bench seat sitting on springs mounted directly to the frame of a horse-less carriage”. READ MORE