Reference

Polyolefin composition for foaming

Polyolefin composition for foaming. (Asahi Chemical Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59217733 A2 7 Dec 1984 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. 9002-88-4 is the cas registry number of certain chemical which is used as reagents here. CLASS: ICM: C08J009-14. APPLICATION: JP 83-90636 25 May 1983.There are some reagents like 9002-88-4 is used in this study. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) The title compns. are composed of a polyolefin, a volatile org. foaming agent, and 31 compd. of the formula RO(ZO)nH (R = C6-10 hydrocarbon moiety, C6-20 arom. hydrocarbon moiety; Z = C1-6 hydrocarbon moiety; n = 1-30). The compns. provide foams having large section area, good appearance, and independent cells. Thus, high-d. polyethylene [9002-88-4] (d. 0.960 g/cm3) 100, hydroxyethyl octyl ether (I) [10020-43-6] 1, talc 0.1, and 1:1 (mol) CCl2F4-CH2Cl2 32 parts were mixed and extruded to obtain a foam showing expansion ratio 50 and section area coeff. 3.6, vs. 45 and 1.9, resp., for a foam without I. ..

Correlation between the formation of a lamellar liquid crystalline phase and the hydrophile-lipophile balance (HLB) of surfactants

Correlation between the formation of a lamellar liquid crystalline phase and the hydrophile-lipophile balance (HLB) of surfactants. Kunieda, Hironobu (Fac. Eng., Yokohama Natl. Univ., Yokohama 240, Japan). J. Colloid Interface Sci., 114(2), 378-85 (English) 1986. CODEN: JCISA5. ISSN: 0021-9797. DOCUMENT TYPE: Journal CA Section: 66 (Surface Chemistry and Colloids) Section cross-reference(s): 75 The hydrophile-lipophile balance of nonionic surfactants changes from hydrophilic to lipophilic with the rise in temp. and is considered to be just balanced in a temp. range at which a lamellar liq. cryst. phase forms in the surfactant-water system. The mid-temp. of that range is called the liq. crystal temp., TLC. A relation is given between the HLB nos. of nonionic surfactants and the liq.-crystal temp. in aq. systems. This relation is similar to that between the HLB no. and the HLB temp. in a water/nonionic surfactant/oil system. The condition to produce a lamellar liq. crystal at 30° is given. This relation is equiv. to the above equation and is valid for an ionic-nonionic surfactant aq. system.Except for chemicals metioned above, 19327-39-0 and 10020-43-6 are also used. .