Results 151 to 160 of about 179,059 (207)

Zinc fever in a painter and varnisher: a case report. [PDF]

J Med Case Rep
Belting K, Eisenhawer C, Merget R, Brüning T, Monsé C.   +4 more
europepmc   +1 more source

Form, function and functionality of two dimeric toluene-2,4-diisocyanate polymorphs

Acta Crystallographica Section B Structural Science, 2012
2,4-Dioxo-1,3-diazetidine-1,3-bis(methyl-m-phenylene) diisocyanate (dimerized toluene-2,4-diisocyanate, TDI) is one of the most widely used aromatic diisocyanates in the polymer industry, and it crystallizes in at least two polymorphic forms (form A and form B) depending on reaction conditions.
Vella-Zarb, L., Dinnebier, R.
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Catalytic synthesis of toluene-2,4-diisocyanate from dimethyl carbonate

Journal of Chemical Technology and Biotechnology, 2001
AbstractThe process for catalytic synthesis of toluene‐2,4‐diisocyanate (TDI) from dimethyl carbonate (DMC) consists of two steps. Starting from the catalytic reaction between toluene‐2,4‐diamine (TDA) and DMC, dimethyl toluene‐2,4‐dicarbamate (TDC) is formed, and then decomposed to TDI. For the first step, the yield of TDC is 53.5% at a temperature of
Shufang Wang, Xinqiang Zhao, Fang Li
exaly   +2 more sources

Polyurethane foam demonstrations: The unappreciated toxicity of toluene-2,4-diisocyanate

Journal of Chemical Education, 1974
The author describes an accident and the relevant safety precautions resulting from a spill of toluene-2,4-diisocyanate .
G. W. Rayner. Canham, M. B. Hocking
openaire   +1 more source

Toluene diisocyanate (TDI) regulates haem oxygenase-1/ferritin expression: implications for toluene diisocyanate-induced asthma

Clinical and Experimental Immunology, 2010
Diisocyanate is a leading cause of occupational asthma (OA). Diisocyanate-induced OA is an inflammatory disease of the airways that is associated with airway remodelling.
Seung-Hyun Kim, Hae-Sim Park, Y-M Ye
exaly   +2 more sources

Immobilization of antibody to a plastic surface by toluene 2,4-diisocyanate and its application to radioimmunoassay

Clinica Chimica Acta, 1983
A novel procedure to fix antibody on a plastic surface was developed, using a polystyrene tube treated with 0.5% toluene 2,4-diisocyanate (TC) dissolved in carbon tetrachloride. Using 125I-labelled IgG, we found that the rate of immobilization of IgG was significantly higher than that obtained by simple adsorption or coupling by glutaraldehyde in the ...
T, Saito, F, Nagai
openaire   +2 more sources

The effects of toluene diisocyanate and of capsaicin on human bronchial smooth muscle in vitro

European Journal of Pharmacology - Environmental Toxicology and Pharmacology Section, 1994
Toluene diisocyanate contracts guinea-pig bronchial smooth muscle through a mechanism involving capsaicin-sensitive sensory nerves. In the present study, we investigated the effects of toluene diisocyanate, capsaicin and tachykinins on isolated human ...
Leonardo Fabbri, Marina Saetta, C E Mapp   +2 more
exaly   +2 more sources

Blocked isocyanate. Reaction and thermal behaviour of the toluene 2,4‐diisocyanate dimer

Die Angewandte Makromolekulare Chemie, 1996
AbstractDue to the difference in reactivity between free isocyanates and uretdione rings, diisocyanate dimers can be used as blocked isocyanates. They offer the potential advantage that no volatile by‐products are formed. The toluene 2,4‐diisocyanate dimer contains one uretdione ring, formed by dimerization of two isocyanate groups, and two free ...
E. Querat, L. Tighzert, J. P. Pascault, K. Dušek   +3 more
openaire   +1 more source

Evidence that toluene diisocyanate activates the efferent function of capsaicin-sensitive primary afferents

European Journal of Pharmacology, 1990
Isocyanates are an important cause of occupational asthma. The mechanism of isocyanate-induced asthma is still unknown. To determine whether toluene diisocyanate stimulates the 'efferent' function of peripheral endings of capsaicin-sensitive sensory ...
Leonardo Fabbri, Pierangelo Geppetti, Paolo Santicioli   +2 more
exaly   +1 more source

Study on the synthesis of toluene-2,4-diisocyanate via amine and carbonyl fluoride

Journal of Fluorine Chemistry, 2015
Abstract We presented recently a synthesis of toluene-2,4-diisocyanate (TDI) as one of the nine examples to verify the feasibility of an industrial appealing two-step method for isocyanates synthesis via amines and carbonyl fluoride (COF2). Because more investigation was considered to be necessary for future industrial application, the two-step ...
Ni Zhang, Xiaomeng Zhou, Hengdao Quan, Akira Sekiya   +3 more
openaire   +1 more source