Reference

Modified polysaccharide

Modified polysaccharide. Reid, Albert Richard (Hercules Inc., USA). Ger. Offen. DE 2647420 28 Apr 1977, 40 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C08B015-06. PRIORITY: US 75-625332 23 Oct 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) The amt. of homopolymer formed in the grafting of cellulose [9004-34-6] with acrylamide (I) [79-06-1] and other sol. monomers is reduced by simultaneously crosslinking with a divinyl compd. and using an inert, liq. continuous phase for the reaction medium. Thus, 32.4 g Me2CO-moistened oxidized cellulose was slurried with 400 mL PhMe and Me2CO to total 200 mL, stirred 10 min at 25.degree., treated over 15 min with a soln. contg. K2S2O8 0.06, I 15, N,N'-methylenebisacrylamide [110-26-9] 0.25, and acrylic acid [79-10-7] 26.9 g in 152 mL water adjusted to pH 7.5, and stirred 1 h at 25.degree.. The mixt. was then polymd. at 50.degree. with addn. of more catalyst soln. until polymn. was complete. The product, contg. 61% vinyl polymer, gelled in 10 s, gelld in 15-20 s, gelled, and nearly gelled when mixed with water in ratios of , , , and , resp., and gelled in 15-20 when mixed with 1% NaCl soln. in a ratio .

Polyamide compositions with improved transparency and gloss

Polyamide compositions with improved transparency and gloss. Ohhashi, Sadao; Kyoda, Osamu; Matsuki, Akira (Mitsubishi Chemical Industries Co., Ltd., Japan). Japan. Kokai JP 52040566 29 Mar 1977 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L077-00. APPLICATION: JP 75-116804 26 Sep 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) A polyamide compn. with improved transparency and gloss is prepd., contg. a methylenebisamide. Thus, a mixt. of 100 parts polycaproamide [25038-54-4] chips and 0.1 part methylenebisacrylamide (I) [110-26-9] was stirred 1 h and molded to give a film with haze 6.0% and friction coeff. 0.48 compared with 6.2% and 0.87, resp., for a control contg. no I.