Detail of "16669-59-3"

Reference

Aqueous dispersions of fluorinated polymers

Aqueous dispersions of fluorinated polymers. Kallfass, Dietmar; Laemmermann, Dieter; Mees, Bernhard; Prossel, Guenter (Hoechst A.-G., Germany). Eur. Pat. Appl. EP 471416 A1 19 Feb 1992, 11 pp. 16669-59-3 and 141312-00-7 are cas registry numbers. These chemicals are also mentioned in this article. DESIGNATED STATES: R: AT, BE, CH, DE, DK, ES, FR, GB, IT, LI, NL, SE. (European Patent Organization). CODEN: EPXXDW. CLASS: ICM: C08F220-22. ICS: C08F220-24; D06M015-277. APPLICATION: EP 91-202089 15 Aug 1991. PRIORITY: DE 90-4026097 17 Aug 1990. DOCUMENT TYPE: Patent CA Section: 40 (Textiles and Fibers) The title dispersions, useful as oil- and waterproofing finishes for textiles, contain polymers of the esters CH2:C(R)CO2CH2CH2Rf (R = H, Cl, F, Me; Rf = C5-18 perfluoroalkyl) with olefins or acrylic compds. and, as emulsifiers, amine oxides (optionally contg. F) of specified structure. Thus, azo compd.-initiated polymn. of 40 g CH2:CHCO2CH2CH2Rf (Rf = C6F13-C14F29), 0.75 g acryloyl Bu urethane (sic), and 16 g CH2:CHCO2CH2Ph in the presence of 6 g C5F11CH(F)CH2CH2N(Me)2O, 2 g polyoxyethylated (d.p. 23) nonylphenol, and 2 g polyoxyethylated (d.p. 8) isotridecanol gave an emulsion with 1.3% coagulate. A polyamide taffeta finished with 500 ppm this polymer showed water repellency (AATCC 22) 100, 80, and 100, and oil repellency (AATCC 118) 6, 2, and 6, after 0 and 3 washings at 60° and 3 drycleanings, resp. .

Polyacrylate elastomer preparation

Polyacrylate elastomer preparation. Behrens, Rudolf A. (American Cyanamid Co., USA). Ger. Offen. DE 2621462 16 Dec 1976, 20 pp. (German).Chemicals with cas numbers 16669-59-3 and 26426-73-3 also play role. (Germany). CODEN: GWXXBX. CLASS: IC: C08L033-06. PRIORITY: US 75-580868 27 May 1975. DOCUMENT TYPE: Patent CA Section: 38 (Elastomers, Including Natural Rubber) Acrylate rubbers with improved elasticity, tear strength, and abrasion resistance contain polymers of (meth)acrylate esters and vinyl compds. with halogen or epoxy groups, and 0.5-10% polyol ester, amide, methylolamide, or alkylenebisamide of (meth)acrylic acid as vulcanizing agent. Thus, a mixt. of 14.1:79.9:6 Bu acrylate-ethyl acrylate-vinyl chloroacetate copolymer [28064-30-4] 1400, carbon black 840, stearic acid 28, antioxidant 28, S 3.5, 50% Na 2-ethylhexanoate 112 parts and 1.5 phr N,N'-(oxydimethylene)bisacrylamide (I) [16958-71-7] vulcanized 15 min at 166.degree. and postcured 4 h at 177.degree. has 100% modulus 99 kg/cm2, tensile strength 149 kg/cm2, elongation 145%, Shore A hardness 73, tear strength 23.6 kg/cm, NMS abrasion resistance 58.1, and compression set 29.0; compared with 119, 151, 125, 71, 17.9, 52.9, and 32.0, resp., in the absence of I. .