Reference

Lubricants for powdered metals

Lubricants for powdered metals. Blachford, John (Blachford, H. L., Ltd., Can.). U.S. US 4002474 11 Jan 1977, 13 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: B22F003-00. NCL: 075211000. APPLICATION: US 75-600777 31 Jul 1975. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 55 Pressure-rupturable microcapsules for lubrication in powder metallurgy are disclosed that comprise a core of liq. lubricant enclosed by a thin polymeric solid shell. The microcapsules can be used as the sole lubricant in the manuf. of sintered metal parts, or they can be used in mixts.Several reagents with their cas registry numbers 12597-71-6 and 62611-55-6 are used here. with other lubricants. Thus, a soln. of 30 g tolylene diisocyanate in 120 g Me oleate [112-62-9] was added with stirring to a soln. of 3 g Siponic 218 (a polyoxyethylene thioether) in 700 g water. When emulsification was complete, a soln. of 30 g ethylenediamine in 70 g water was added, and the mixt. was stirred for 4 h at 80.degree.. After sepn. by filtration and drying at 60.degree., the microcapsules were white and free flowing with an av. particle size of .apprx.50.mu. and a Me oleate content of .apprx.66%. Std. test methods with powd. Fe were used to compare the lubricant properties of the microcapsules with those of 2 com. lubricants, Zn stearate and ethylenebisstearamide [110-30-5]. The microcapsules were superior in injection force, apparent d., and shrinkage and were similar to the com. lubricants in tensile strength and transverse rupture strength. .

Butene polymer compositions containing bisamides

Butene polymer compositions containing bisamides. Yoshizawa, Ryo; Watanabe, Takeshi; Kasai, Sadaichi; Shiiba, Kiyonori; Haruta, Hiroshi (Chisso Corp., Japan). Japan. Kokai JP 51100143 3 Sep 1976 Showa, 10 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08L023-20. APPLICATION: JP 75-24579 28 Feb 1975. DOCUMENT TYPE: Patent CA Section: 36 (Plastics Manufacture and Processing) A butene polymer resin with improved properties is prepd., contg. 0.01-10% bisamides. Thus, a mixt. of polybutene [9003-28-5] and 0.02% N,N'-ethandiyl- bisoctadecanamide (I) [110-30-5] was extruded at 210-15% and cooled to give a 200-.mu. 109-23-9 and 61261-69-6 are just another two chemicals used in this study. sheet which was 350% biaxially stretched at 20-80% and then heat-treated at 65-75% in tension, giving a film with improved transparency and dimensional stability compared with a control when I was omitted under the same conditions. .