Isocyanates in Industry
نویسندگان
چکیده
منابع مشابه
Occupational exposure to selected isocyanates in Polish industry.
BACKGROUND Isocyanates constitute a group of highly reactive, low molecular weight chemicals used worldwide for polyurethane manufacturing. The occupational exposure to these compounds is a major cause of occupational asthma, thus it is very important to monitor their concentration in the workplace atmosphere. The aim of the study was to measure the concentration of 4,4'-methylenediphenyl diiso...
متن کاملThe role of isocyanates in fire toxicity
Isocyanates are a group of low molecular weight, highly reactive compounds with a functional isocyanate group. The main human exposure route is via inhalation of airborne isocyanates, although dermal exposure has also been reported. The inhalation of isocyanates is associated with severely adverse health effects such as asthma, inflammation in the respiratory tract and cancer. During thermal de...
متن کاملOccupational asthma due to isocyanates.
162 subjects who had been exposed to isocyanates, who had developed symptoms during the exposure period, or in the evening or night and, therefore, had a history compatible with isocyanate-induced asthma, were studied with inhalation challenge testing to isocyanates (toluene diisocyanate and methylene diphenyl diisocyanate) and methacholine, because they were suspected of having occupational as...
متن کاملHypersensitivity pneumonitis after exposure to isocyanates.
Four patients exposed to isocyanate vapour developed dyspnoea associated with restriction and reduced gas transfer as well as moderate airways obstruction on lung function testing. In one patient bilateral radiographic shadowing was present and an open lung biopsy was performed. The microscopic appearances ranged from acute inflammation to end-stage fibrosis but the centribular accentuation of ...
متن کاملReactivity of Modified Starches with Isocyanates
Varlo.s s.bstitlUmU f«T~ add~d onto starch by m~ans of ~surification or ~th~rification so that thtir ~fftct on rtllCtifJity of starch 'With isocyanatts in a nonpolar solvtnt could bt studi~d. Ma:rim.m rtacti~t, 0/ tht moJifitd starchts 'Was achitf)~d 'When tht dtgrtt of substitution (DS.) 'Was I.bo.t 0.7. C.,td .rtthl.M plastics madt from formulations containing 20 'I, of tht starch dtrl'Pl.t:v...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1970
ISSN: 0035-9157
DOI: 10.1177/003591577006300415