Download Cosmetic and Pharmaceutical Applications of Polymers by Charles G. Gebelein, Tai Cheng, Victor Yang (auth.), Charles PDF

By Charles G. Gebelein, Tai Cheng, Victor Yang (auth.), Charles G. Gebelein, Tai C. Cheng, Victor C. Yang (eds.)

Polymers proceed to teach nearly awesome versatility. we now have continuously recognized that polymers may be used for trinkets, toys and dishes. Now, notwithstanding, we're now not shocked to come across those adaptable mate­ rials in nearly each position we glance. we discover them in our autos, instruments, digital units, construction fabrics, and so forth. using polymeric mate­ rials in medication can be good documented in earlier books via one of many Editors (Gebelein) and by way of others. Likewise, using polymeric mate­ rials in pharmaceutical purposes, specifically in managed liberate structures, can also be good demonstrated. however, using those ubiquitous chemical substances is much much less ob­ vious within the box of cosmetics, even though glossy beauty arrangements depend seriously on polymers and this pattern is bound to extend. This booklet brings jointly a lot of the elemental details on polymers in cosmetics and compares this utilization with related purposes in pharmaceutical and clinical purposes. Cosmetics, like drugs and pharmacy, dates again to antiquity. we will be able to locate makes use of of perfumes, balms and ointments in quite a few outdated books, reminiscent of the Bible. for instance, using ointments and balms is famous greater than thirty 8 occasions, and perfumes and similar fabrics are brought up no less than twenty 9 occasions within the Bible.

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14. G. T. S. Patent 3,769,398. " 15. R. J. Crawford and C. R. Robbins, J. Soc. Cosmet. , 31, 273-278 (1980). " 46 16. P. J. , 23(3), 124-132 (1984). " 17. P. J. , 57(9), 450-451 (1984). " 18. E. J. Murphy, Soap, Cosmet. Chem. , 56(2), 34, 39, 40, 82 (1980). " 19. P. Flemming, Parfuem. , 61(9), 332-336 (1980). " 20. "GAFQUAT quaternary polymers for the cosmetic industry," Technical Bulletin, 2550-017, GAF Corporation, New York. 21. Y. K. Kamath, C. J. Dansizer and H. D. Weigmann, J. Appl. Polym.

3) An amphoteric polymer which shows a salting-in phenomenon. It is applied to a dilution-deposition type conditioner, which has hair-styling ability. G. , Plemnn Press, New York, 1991 33 EXPERllIElfTAL 1. Materials 1A. Hydrolyzed wool-keratin: Wool fibers were heated with an aqueous solution of phosphoric acid. After neutralization with calcium hydroxide, the unreacted wool and calcium phosphate were removed by filtration to give an aqueous solution of hydrolyzed wool-keratin. The solution was treated with activated charcoal and was freeze-dried to give a pale yellow powder.

Poly(ether)-Poly(siloxane) Copolymers Among the nonionic modified polymers, the products containing one or several -(CH2)3-0-(CnH2nO)xR1 pendent groups have gained considerable significance in cosmetic formulations. 1 These compounds are generally described as poly (ether) -poly (siloxane) copolymers. Their CTFA name is Dimethicone Copolyol (Figure 7). The polyether part in Dimethicone Copolyols can consist of homopolymeric chains of either ethylene or propylene oxide or can contain varying proportions of both ethylene and propylene oxide.

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