CAS No.139-25-3,Benzene,1,1'-methylenebis[4-isocyanato-3-methyl- Suppliers,MSDS download

MSDS Download
CAS Number:
139-25-3
Name:
Benzene,1,1'-methylenebis[4-isocyanato-3-methyl-
Formula:
C17H14 N2 O2
Molecular Structure:
Synonyms:
Isocyanicacid, methylenebis(2-methyl-p-phenylene) ester (7CI,8CI);3,3'-Dimethyldiphenylmethane 4,4'-diisocyanate;4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane;4,4'-Diphenyl-3,3'-dimethylmethane diisocyanate; NSC 84203; Nacconate 310
Molecular Weight:
278.33
Density:
1.1 g/cm³
Boiling Point:
410.4 °C at 760 mmHg
Flash Point:
169.5 °C
Safety:
Poison by intravenous route. A sensitizer. When heated to decomposition it emits toxic fumes of NO_x and CN⁻.Details

Total:3 Page 1 of 1 1

Please post your buying leads,so that our qualified suppliers will soon contact you!
*Required Fields

Reactive polyester-amide polymers as coreactants or curing agents for polyepoxides and polyisocyanates: Reactive polyester-amide polymers as coreactants or curing agents for polyepoxides and polyisocyanates. Simon, Eli (USA ). U.S. US 4042546 16 Aug 1977,5 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08G069-44. NCL: 260022000R. APPLICATION: US 76-682474 3 May 1976. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) The title polymers are prepd. from a 1:1:2 mol ratio trihydric alc.-monoamino-monohydric alc.-aliph. dibasic acid mixt., and are cured at low temps. with polyepoxides and polyisocyanates to yield tough products with usable temp. ranges -40.degree. to +200.degree.. Thus, 257 g 1:1:2 2-amino-2-butanol-glycerol-sebacic acid polymer [64386-71-6] at acid no. 40 was treated with 138 g Epon 826 [25068-38-6] (av. oxirane equil. 184) and 35 g 3,3'-dimethyldiphenylmethane 4,4'-diisocyanate [139-25-3] (isocyanate equil. 139). The compn. could be cured at <80.degree., and could be cured within 1 h at 120.degree. to yield tough, flexible products. Without the epoxy or isocyanate, a curing temp. of .apprx.200.degree. was required for the polyester-amide.

The study of the reactivity of epoxy resins in the reactions with diisocyanates by DTA method: The study of the reactivity of epoxy resins in the reactions with diisocyanates by DTA method. Gromakov, N. S.; Hozin, V. G.; Voskresenskii, V. A. (V. A. Voskresenskii Civ.-Eng. Inst., Kazan, USSR). Therm. Anal., [Proc. Int. Conf.], 5th, 279-82. Edited by: Chihara, H. Heyden: London, Engl. (English) 1977. CODEN: 38WRAM. DOCUMENT TYPE: Conference CA Section: 36 (Plastics Manufacture and Processing) Differential thermal anal. (DTA) and IR spectroscopy show that 2-oxazolidones and urethanes are formed when epoxy resins are treated with diisocyanates. The reactivities of the epoxy resins increased as follows: 3,4-epoxycyclohexylmethyl 3,4-epoxcyclohexanecarboxylate polymer [25085-98-7] < bisphenol A diglycidyl ether polymer [25085-99-8] < triglycidyl isocyanurate [2451-62-9] < diglycidylaniline [32144-31-3]. The reactivities of the diisocyanates increased as follows: 3,3'-dimethyl-4,4'-diphenylmethane diisocyanate [139-25-3] < 4,4'-diphenylmethane diisocyanate [101-68-8] < TDI [26471-62-5].

[Hangzhou]86-571-85317600,85317603,85317620