Reference

Silanes and compositions prepared from them

Silanes and compositions prepared from them. Kreuzer, Franz Heinrich; Glauberman, Gisela; Bosch, Erhard (Consortium fuer Elektrochemische Industrie G.m.b.H., Fed. Rep. Ger.). Ger. Offen. DE 3210337 A1 22 Sep 1983, 24 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07F007-04; C07F007-18; C08L083-04; C08K005-54. APPLICATION: DE 82-3210337 20 Mar 1982. DOCUMENT TYPE: Patent CA Section: 39 (Synthetic Elastomers and Natural Rubber) Section cross-reference(s): 29 The silanes R1nSi(OCR22COZR1)4-n (R1 = hydrocarbyl, R2 = H or hydrocarbyl, Z = O or NH, n = 0 or 1), useful in the manuf. of moisture-curable rubbers, are prepd. from R1nSiX4-n (X = hydrolyzable group) and HOCR22COZR1. Thus, adding 2114 g HOCH2CO2Bu [7397-62-8] over 1 h to 680 g stirred SiCl4, stirring 15 min, and stripping HCl with N at 100° gave 2155 g Si(OCH2CO2Bu)4 [89022-87-7]. A mixt. of this silane 5, OH-terminated di-Me siloxane (viscosity 20 Pa-s at 25°) 95, and liq., basic ion exchanger (Amberlite LA-2) 0.1 g had a skin forming time of 5-10 min in moist air after 0 or 30 days at room temp. or 80°.Except for chemicals metioned above, 89022-90-2 and 10026-04-7 are also used. .

Lacquer composition for preparing serigraphic inks

Lacquer composition for preparing serigraphic inks. Nuta, Maria; Gita, Laura; Andreica, Victoria; Berceanu, Maria (Centrul de Cercetari pentru Protectii Anticorozive Lacuri si Vopsele, Bucuresti, Rom.). Rom. RO 83360 B 30 Sep 1984, 2 pp. (Romanian). (Romania). CODEN: RUXXA3. APPLICATION: RO 82-107402 30 Jan 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 57 Lacquers useful for prepn. of serigraphic inks used in decorating glass with decalcomanias or for direct serigraphy contained glycerol rosin esters 10-20, acrylic-styrene copolymer solns. 45-55, lecithin 2, plasticizer 1-5, 30% hydroquinone (I) [123-31-9] soln. in ethylene glycol (II) 0-6, petroleum-based solvent 10-20, and Bu glycolate (III) [7397-62-8] 10-20 parts. Thus, a typical compn. contained glycerol rosin ester 15, 30% acrylic-styrene copolymer soln. in org. solvent 50, lecithin 1, vegetable oil plasticizer 3, 30% I-II soln. 30, petroleum-based solvent (b.p. 97-190) 15, and III 11 parts and exhibited Afnor 4-mm cup flow time 20-30 s at 20°.