Reference

Aqueous polyurethane dispersions

Aqueous polyurethane dispersions. Sugawara, Eiichi; Shioume, Satoshi; Yorikane, Kenji; Kanazawa, Kumiko (Dainichiseika Color and Chemicals Mfg. Co., Ltd., Japan). Japan. Kokai JP 52008060 21 Jan 1977 Showa, 5 pp. 105-60-2 and 30322-28-2 are also occured in this study. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L075-08. APPLICATION: JP 75-83849 8 Jul 1975. DOCUMENT TYPE: Patent CA Section: 39 (Textiles) An aq. dispersion of a polyurethane capped with .epsilon.-caprolactam (I) [105-60-2] or acetone oxime [127-06-0] contg. a crosslinkable polymer of a poly(oxyethylene) deriv. (A) with .gtoreq.1 mol of a polyisocyanate capped with I or PhOH [108-95-2] was useful for waterproofing and creaseproofing of polyester-cotton blends or manuf. of leather substitutes for clothing. Thus, a polymer [62292-91-5] prepd. by polymg. 100 parts of the reaction product of caprolactone with diethylene glycol with 39 parts hexamethylene diisocyanate for 4 h at 70-80.degree. was treated with I for 2 h at 70-80.degree. to give a product (II). Polyester-cotton blend () was immersed in an aq. dispersion (solid content 2-4%) of a mixt. of 100 parts II and 40 parts of a product (III) contg. 0.03% Sn laurate, dried, and cured 1 min at 160.degree. to give a water-resistant and creaseproofed fabric with good hand. III was prepd. by polymg. 100 parts polyethylene-polypropylene glycol with 18.8 parts xylylene diisocyanate and treating the polymer [62355-60-6] formed with I for 3 h at 70-80.degree.. .

Compound for controlling weeds

Suchy, Milos (Hoffmann-La Roche, F., und Co. A.-G., Switz.). Braz. Pedido PI BR 7903159 25 Nov 1980, 36 pp. (Portuguese). (Brazil). CODEN: BPXXDX. CLASS: IC: C07C131-00; C07C079-22; C07C059-223; A01N037-163. APPLICATION: BR 79-3159 790521. DOCUMENT TYPE: Patent CA Section: 5 (Agrochemicals) The herbicides I (R1 = H, C1-6 alkyl, or phenyl; R2 H, C1-6 alkyl, C2-6 alkene, or Ph; R3 = H, F, Cl, Br, F3C, or NO2; R4 and R5 = H or Cl; R1 and R2 can be cyclized into a cyclohexane ring, which can be mono-, di-, or trisubstituted with C1-3 alkyls; R1 and R2 cannot be H simultaneously) are prepd. Thus, 5 g of acetone oxime [127-06-0] and 5.6 g of pyridine were dissolved in 80 mL THF before dropwise of 15 g 2-bromopropionic acid bromide [563-76-8]. The mixt. was left at room temp. (with stirring) for 3 h, chilled, and extd. with ether. The ether ext. was dried, and the 2-bromopropionylacetone oxime [72131-70-5] purified by absorption on silica gel. Fifteen mL tetrahydrofuren was added to 5 mL of a 50% suspension of NaH in petroleum before dropwise addn. of 5 g p-(p-chlorophenoxy)phenol [21567-18-0] in 30 mL DMF and of 5.2 g 2-bromopropionyl acetone oxime in 20 mL of DMF. The mixt. was refluxed for 2 h, chilled, extd. with either, and the product acetone O-[2-(p-chlorophenoxy)phenoxy)propionyl]oxime [72131-78-3] was purified by absorption on silica gel. Acetone O-2-[p-(p-bromophenoxy)phenoxy]propionyl oxime [72131-95-4] (625 g/ha) totally controlled Alopecurus myosuroides, and partially Digitaria floziodana.