Detail of "2083-91-2"

Reference

Siloxylated metal-containing catalysts for urethane foams and elastomers

Siloxylated metal-containing catalysts for urethane foams and elastomers. Baskent, Feyyaz Omar; Reedy, James Dale (Union Carbide Corp. , USA). Eur. Pat. Appl. EP 84183 A2 27 Jul 1983, 34 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07F007-08; C07F007-22; C07F007-10; C07F003-12. ICA: C08G018-22; C08G018-24. APPLICATION: EP 82-112116 30 Dec 1982. PRIORITY: US 81-335612 30 Dec 1981. DOCUMENT TYPE: Patent CA Section: 39 (Synthetic Elastomers and Natural Rubber) Section cross-reference(s): 29, 37 Siloxylated metal-contg. catalysts for urethane foams and elastomers are prepd. by reaction of silylamines having the formula R4-nSi(NR1R2)n ( R is alkyl, alkaryl, alkenyl, alkynyl, aryl, cycloaliph., siloxy, or heteroatom substituted aliph., cycloaliph., or aryl group; R1 and R2 are H, alkyl, alkaryl, alkenyl, alkynyl, aryl, cycloaliph. or heteroatom substituted aliph., cycloaliph. or aryl groups; R1 and R2 cannot both be H; n = 1-4) with a metallic carboxylate having the formula M(OCOR3)xR4y (M is a metal with an oxidn. state; R3 and R4 are alkyl, alkaryl, alkenyl, alkynyl, aryl, cycloaliph. 87707-25-3 and 1600-27-7 are also in the experiment. or heteroatom substituted aliph., cycloaliph., or aryl group; x is at least 1 but no more than the oxidn. state of M ; y is equal to the oxidn. state of M minus x. The catalysts produce acceptable quality, cure, and desired cream rise profiles in foams, such as high-resilience, flexible, and rigid polyurethane foam, polyester foam, and reaction injection molding of urethane elastomers. The catalysts can also be prepd. in situ and have the same effect on foam properties. Thus, 0.168 mol Bu2Sn(OAc)2 [1067-33-0] reacted with 0.395 mol (dimethylamino)trimethylsilane [2083-91-2] at 80° for 2 h to give dibutylbis(trimethylsiloxy)stannane [86878-54-8]. Siloxylated Hg- and Pb-contg. catalysts were similarly prepd. .

Surface resistivity of different silylated glasses

Surface resistivity of different silylated glasses. Deyhimi, F.; Munoz, J. L. (Hop. Cantanol, Univ. Geneve, Geneva 1211/4, Switz.). J. Appl. Electrochem., 14(6), 803-6 (English) 1984. CODEN: JAELBJ. ISSN: 0021-891X. DOCUMENT TYPE: Journal CA Section: 57 (Ceramics) Section cross-reference(s): 76 Silylation of soda-lime, borosilicate, aluminosilicate and fused SiO2 glasses was investigated using treatment with N,N-trimethyl(dimethylamino)-silane [2083-91-2] and of the borosilicate glass also with hexamethyldisilazane [999-97-3] and with MeOH [67-56-1]. The surface resistivity values of the treated glass were similar for all 3 silylation methods. However the surface resistivity varied with type of glass and increased for glasses in the order: soda-lime, borosilicate, aluminosilicate, and fused SiO2. The results confirm that the main role of the silylation reaction is the manuf. of electrodes would be to avoid the formation of a continuous conductive film at the surface of the glass.