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4,4 -Dicyclohexylmethane diisocyanate

Stadler IC, Karol MH. 1985. Use of dose-response data to compare the skin sensitizing abilities of dicyclohexylmethane-4,4 -diisocyanate and piciyl chloride in two animal species. Toxicol Appl Pharmacol... [Pg.179]

Weyel, D.A., Schaffer, R.B. (1985). Pulmonary and sensory irritation of diphenylmethane-4,4 - and dicyclohexylmethane-4,4 -diisocyanate. Toxicol. Appl. Pharmacol. 77 427-33. [Pg.312]

DICYCLOHEXYLMETHANE-4,4 -DIISOCYANATE HYDROGENATED MDI METHYLENE BIS(4-CYCLOHEXYLISOCYANATE) (ACGIH.OSHA) NACCONATE H 12... [Pg.918]

OSHA PEL CL 0.01 ACGIH TLV TWA 0.005 ppm NIOSH REL (Dicyclohexylmethane 4,4 -diisocyanate) TWA CL 0.01 ppm SAFETY PROFILE Poison by inhalation. Mildly toxic by ingestion. When heated to decomposition it emits very toxic fumes of NOx and CN . [Pg.918]

BRN 2217800 CP 99173 Cyclohexane, 1,1 -methylenebis(4-isocyanate- Dicyclohexylmethane 4,4 -diisocyanate EINECS 225-863-2 Hydrogenated MDI Hylene W Isocyanic acid, methylenedi-... [Pg.206]

Synonyms/Trade Names Dicyclohexylmethane 4,4 -diisocyanate DMDi bis(4-isocyanatocyciohexyi)methane HMDI Hydrogenated MDI Reduced MDI Saturated MDI ... [Pg.207]

Alternative Names/Abbreviations Hydrogenated MDl, dicyclohexylmethane-4, 4-diisocyanate, bis(4-isocyanatocycyclohexyl) methane, HDl... [Pg.242]

Dicyclohexylmethane-4,4 -diisocyanate. See Methylene bis (4-cyclohexylisocyanate) N,N-Dicyclohexylmethylamine. See N-Methyldicyclohexylamine Dicyclohexyl peroxide carbonate. See Dicyclohexyl peroxydicarbonate Dicyclohexyl peroxydicarbonate CAS 1561-49-5... [Pg.1286]

CAS 5124-30-1 EINECS/ELINCS 225-863-2 Synonyms Bis (4-isocyanatocyclohexyl) methane Cyclohexane, 1,1 -methlenebis (4-isocyanato-) Dicyclohexylmethane-4,4 -diisocyanate 4,4 -... [Pg.2618]

Polymer Synthesis. Polyethylene glycol (PEG) 600,1000, and 1500 were obtained from Aldrich Chemical Company and dried by azeotroping with toluene. Molecular weights for the polyethylene glycols were determined from hydroxyl numbers. DieSiylene glycol (DEG) from Fisher Scientific was purified by vacuum distillation over metallic sodium. Hexamethylene diisocyanate (HMDI) from Aldrich Chemical Company was vacuum distilled. Dicyclohexylmethane-4,4 -diisocyanate (DCDI) (Desmodur W) from Mobay Chemical Company was used as received. Dibutyltin bis-(2-ethylhexanoate) from Kodak was stored over phosphorus pentoxide. N,N-dimethylformamide (DMF) from EM Science and 4-methyl-2-pentanone from Aldrich Chemical Company were dried over 3A molecular sieves. [Pg.87]

Imashiro et al. (3) prepared polycarbodiimides using 4,4,-dicyclohexylmethane diisocyanate terminated with moisture-resistant diisocyanates. [Pg.28]

Figure 7.7 SAXS profiles for two hydroxyl-terminated oligomers crosslinked by alkoxysilane sol-gel chemistry. First, 1 mole of macrodiol, SS (hydrogenated polybutadiene, HPBD or polycaprolactone, PCL, Mn= 2 kg mol-1), was reacted at 80°C with 2 mole of dicyclohexylmethane diisocyanate, H12 MDI. After complete reaction, the prepolymer was dissolved in tetrahydro-furan and the y-aminosilane, yAPS was added dropwise at room temperature. After 1 h of reaction, the solvent was removed under pressure. The final network was obtained in the absence of a solvent by hydrolysis and condensation of the ethoxysilane groups by the addition of 0.1 mol% TFA, trifluor-oacetic acid. After stirring at room temperature, the mixture was cast into a mold and cured for 24 h at 100°C under pressure, and then postcured at 150°C for 12 h. (Cuney et al., 1997 - Copyright 2001, Reprinted by permission of John Wiley Sons, Inc.)... Figure 7.7 SAXS profiles for two hydroxyl-terminated oligomers crosslinked by alkoxysilane sol-gel chemistry. First, 1 mole of macrodiol, SS (hydrogenated polybutadiene, HPBD or polycaprolactone, PCL, Mn= 2 kg mol-1), was reacted at 80°C with 2 mole of dicyclohexylmethane diisocyanate, H12 MDI. After complete reaction, the prepolymer was dissolved in tetrahydro-furan and the y-aminosilane, yAPS was added dropwise at room temperature. After 1 h of reaction, the solvent was removed under pressure. The final network was obtained in the absence of a solvent by hydrolysis and condensation of the ethoxysilane groups by the addition of 0.1 mol% TFA, trifluor-oacetic acid. After stirring at room temperature, the mixture was cast into a mold and cured for 24 h at 100°C under pressure, and then postcured at 150°C for 12 h. (Cuney et al., 1997 - Copyright 2001, Reprinted by permission of John Wiley Sons, Inc.)...
Definition Copolymer of PEG-8 and sat. methylene diphenyidiisocyanate (dicyclohexylmethane diisocyanate) monomer Formuia [C15H22N2O2 (C2H40)nH20]x Toxicoiogy TSCA listed Uses Film-former, emollient, spreading agent, deposition and delivery system for topical cosmetics... [Pg.3180]

Hexamethylene diisocyanate 2.2.4- Trimethylhexamethylene diisocyanate Hydrogenated xylylene diisocyanate 1.4- Cyclohexane diisocyanate 4,4 -Dicyclohexylmethane diisocyanate Xylylene diisocyanate Tetramethylxylylene diisocyanate Tolulene diisocyanate Diphenylmethane diisocyanate Poly(ethylene glycol) Poly(propylene glycol) Poly(tetramethylene ether glycol) Poly(hexamethylene ether glycol) Poly(ethylene adipate) Poly(butylene adipate) Poly(neopentyl adipate) Poly(3-methylpentyl adipate) Poly(caprolactone) diol... [Pg.99]

Only the diisocyanates are of interest for urethane polymer manufacture and relatively few of these are employed commercially. The most important ones used in elastomer manufacture are the 2,4- and 2,6-toluene diisocyanates (TDl) 4,4 -diphenylmethane diisocyanates (MDI) and its aliphatic analogue 4,4 -dicyclohexylmethane diisocyanate (Hi2 MDI) 1,5-naphthalene diisocyanate (NDI) 1,6-hexamethylenediisocyanate (HDI) xylyene diisocyanate (XDI), isophorone diisocyanate (IPDI) and 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate (TMDI). Also manufactured commercially are various monoisocyanates, including methyl, /7-propyl, /7-butyl, cyclohexyl, phenyl, and 4-chloro- and 3,4-dichlorophenyl isocyanates which are used for substituted ureas and carbamates important as herbicides and crop protection agents. [Pg.7]

Aliphatic diisocyanates can have strong, adverse skin irritation effects and two are well known for this problem, namely dicyclohexylmethane diisocyanate (H12MDI) (Desmodur W by Bayer) and hexamethylene diisocyanate (HDI). Usually care in handling and good hygiene prevents undue problems. Occasionally a more serious effect has been observed in one instance a chemical worker exposed her face to the hot vapour of dicyclohexylmethane diisocyanate and within 24 h her head had swollen to 20% of its original size and characteristic red spots with a white centre were present over the exposed area. Recovery took place slowly over a period of 3 weeks with cortisone-type ointment treatments. Her central nervous system was also affected and took some months to become normal. This was a very unusual and unique incident and is recorded to show that occasionally the unexpected human response can occur with diisocyanates. [Pg.414]

Polyurethanes (PUs), one of the most commonly used polymers for various blood-contacting biomedical applications, are generally prepared by the polycondensation reactions of diisocyanates with diols or amines [35, 36]. Reactions of diisocyanates with diols result in the formation of urethane linkages while diisocyanates reactions with amines result in urea linkages. Both aliphatic, as well as aromatic diisocyanate monomers, are commonly used for preparing polyurethane biomaterials. Examples include 1,4-butane diisocyanate (BDI), 1,6-hexamethylene diisocyanate (HDI), 4,4-dicyclohexylmethane diisocyanate (HMDI), and 4,4-diphenylmethane diisocyanate (MDl) [37]. Commonly used diols (or termed as polyols) for preparing polyurethanes includes poly ethers, polycaprolactone, and polyesters with molecular weights up to 5000 Da. [Pg.31]

Speckhard T, et al. Properties of polyisobutylene polyurethane block copolymers 3. Hard segments based on 4, 4 -dicyclohexylmethane diisocyanate (H12MDI) and butane diol. Polymer 1985 26(l) 70-8. [Pg.17]

Nonaromatic isocyanates such as isophorone diisocyanate (IPDI), hexamethylene diisocyanate prepolymers, and dicyclohexylmethane diisocyanate prepolymers have also gained some importance. Guidelines for the use of isocyanates are given in [27]. [Pg.14]

Time of flight secondary ion mass spectrometry (SIMS) has been used to carry out structure characterizations on polyurethanes based on diols (ethylene glycol, 1,4 butane diol, 1.6-hexanediol) and diisocyanates, (methylene disocyanate, toluene diisocyanate, dicyclohexylmethane diisocyanate). Fragments and oligomers produced in the m/z range 500 - 3200 enabled characterizations to be carried out. [Pg.36]

ABA ABS ABS-PC ABS-PVC ACM ACS AES AMMA AN APET APP ASA BR BS CA CAB CAP CN CP CPE CPET CPP CPVC CR CTA DAM DAP DMT ECTFE EEA EMA EMAA EMAC EMPP EnBA EP EPM ESI EVA(C) EVOH FEP HDI HDPE HIPS HMDI IPI LDPE LLDPE MBS Acrylonitrile-butadiene-acrylate Acrylonitrile-butadiene-styrene copolymer Acrylonitrile-butadiene-styrene-polycarbonate alloy Acrylonitrile-butadiene-styrene-poly(vinyl chloride) alloy Acrylic acid ester rubber Acrylonitrile-chlorinated pe-styrene Acrylonitrile-ethylene-propylene-styrene Acrylonitrile-methyl methacrylate Acrylonitrile Amorphous polyethylene terephthalate Atactic polypropylene Acrylic-styrene-acrylonitrile Butadiene rubber Butadiene styrene rubber Cellulose acetate Cellulose acetate-butyrate Cellulose acetate-propionate Cellulose nitrate Cellulose propionate Chlorinated polyethylene Crystalline polyethylene terephthalate Cast polypropylene Chlorinated polyvinyl chloride Chloroprene rubber Cellulose triacetate Diallyl maleate Diallyl phthalate Terephthalic acid, dimethyl ester Ethylene-chlorotrifluoroethylene copolymer Ethylene-ethyl acrylate Ethylene-methyl acrylate Ethylene methacrylic acid Ethylene-methyl acrylate copolymer Elastomer modified polypropylene Ethylene normal butyl acrylate Epoxy resin, also ethylene-propylene Ethylene-propylene rubber Ethylene-styrene copolymers Polyethylene-vinyl acetate Polyethylene-vinyl alcohol copolymers Fluorinated ethylene-propylene copolymers Hexamethylene diisocyanate High-density polyethylene High-impact polystyrene Diisocyanato dicyclohexylmethane Isophorone diisocyanate Low-density polyethylene Linear low-density polyethylene Methacrylate-butadiene-styrene... [Pg.958]

See other pages where 4,4 -Dicyclohexylmethane diisocyanate is mentioned: [Pg.322]    [Pg.160]    [Pg.160]    [Pg.259]    [Pg.260]    [Pg.1623]    [Pg.114]    [Pg.206]    [Pg.705]    [Pg.739]    [Pg.136]    [Pg.1243]    [Pg.307]    [Pg.307]    [Pg.156]    [Pg.1356]    [Pg.447]    [Pg.610]    [Pg.295]    [Pg.327]    [Pg.328]    [Pg.53]    [Pg.12]    [Pg.13]    [Pg.62]    [Pg.192]    [Pg.597]    [Pg.14]    [Pg.149]    [Pg.20]    [Pg.14]    [Pg.149]    [Pg.150]    [Pg.651]    [Pg.724]    [Pg.390]    [Pg.744]    [Pg.744]    [Pg.322]    [Pg.160]   
See also in sourсe #XX -- [ Pg.469 ]



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Dicyclohexylmethane

Dicyclohexylmethane diisocyanate H12MDI)

Dicyclohexylmethane-4,4 -diisocyanate HMDI)

Diisocyan

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