Polyurethane technology

P. F. Bmins, Polyurethane Technology, Wiley-Interscience, New York, 1969, pp. 1—37. 

Technical Data Sheet — Polyester Diol S-105. Ruco Polymer Corporation, Oct. 1995. Trappe, G., In Buist, J. and Gudgeon, H. (Eds.), Advances in Polyurethane Technology. Maclaren, 1968, p. 80. 

Weil, E. D. in Polyurethane Technology Conference (preprints) Clemson University, Clemson, SC, April 1987. 

We will discuss the colonization of polyurethane by Uving cells. Two examples will be presented one using bacterial cells and the other involving mammalian cells. The application of polyurethane technology is different for each situation but similar enough so that the reader will learn from both situations regardless of specific interest or responsibility. 

Consider the procedure for immobilizing an enzyme using polyurethane technology. A solution of the enzyme is produced in water. The solution is then emulsified with a hydrophilic polyurethane prepolymer. The emulsion is applied to the structural members of a reticulated foam by means of nip rollers. After curing... 

We will discuss several examples in subsequent chapters, but for now, we continue our primer on basic polyurethane technology in order to develop further skills required to build polyurethanes. This chapter covers traditional polyurethanes with physical design features in an exploration of how polyurethanes are designed. We will also discuss most of the parameters that define the current state of the art. 

In this regard, polyurethane technology offers a product designer a particular advantage. An aqueous solution or dispersion can be emulsified conveniently with a hydrophilic prepolymer and thus incorporated into the polyurethane matrix. The incorporation is accomplished by covalently bonding within the polyurethane backbone and by entrapping it within the matrix. Both methods are evident in foams produced by this technique. 

Pruckmayr, G. "FTIR in Polyurethane Technology." Paper presented at the Polyurethane Manufacturers Association, Portland, Oregon, 10/19/1993. 

Buist JM, Gudgeon H (1970) Advances in polyurethane technology, Elsevier, Amsterdam... 

This characteristic feature of cationic polymerization of THF allows the important synthetic application of this process for preparation of oli-godiols used in polyurethane technology and in manufacturing of block copolymers with polyesters and polyamides (cf., Section IV.A). On the other hand, the cationic polymerization of THF not affected by contribution of chain transfer to polymer is a suitable model system for studying the mechanism and kinetics of cationic ring-opening polymerization. 

Polyurethanes were discovered in 1937 by Otto Baryer and his co-workers at the laboratory of LG. Farbenindustrie in Leverkusen (Ulrich, 1982). Since their discovery polyurethanes have attained substantial commercial importance. The development of polyurethane technology was delayed by the Second World War. With the shortage of natural rubber during the war their wide versatility enabled them to be developed in a number of application areas. It became clear that urethanes offered greater latitude, and many new products were created. 

Remarkable advances have been made in the past two decades in polyurethane technology. Advanced technologies geared to the needs of today s construction industry ensure effective protection for concrete structures. The properties that make polyurethanes useful in construction applications are ... 

Kaplan, M. (1969) Urethane foams, in Polyurethane Technology (ed. P.F. Bruins), Interscience, New York, pp. 77-93. 

Buist, J.M., and Gudgeon, H., Advances in Polyurethane Technology, Maclaren Sons, London, (1968). 

This book is part of the Kunstoff-Handbook series and has been translated horn the German. It has fifteen (15) chapters. Chapters particularly relevant to foams are Chapter 5— Flexible Foams, Chapter 6— Polyurethane Rigid Foams, and Chapter 7— Polyurethane In-tegral Skin Foams. The many authors are internationally known experts in the field of polyurethane technology. 

Initial work in the development of polyurethane technology, like nylon 6 development, was also stimulated by an interest in producing a nylon 6,6 fiber type by a polymer chemistry that did not infringe on the Du Pont patents. Polyurethane fiber from hexamethylene diisocyanate and 1,4-butanediol chemistry did have properties similar to nylon 6,6 fiber, but high-diisocyanate cost made this commercially unattractive (Eq. 21.19). 

In 2002 Dow Chemical announced their initial market offering of an elastomeric fiber based on monofilament polyethylene to be called Lastol. This is resistant to chlorine and is to be priced to compete directly with Spandex fiber derived from polyurethane technology [8]. 

Polyurethane Technology, Ed., P.F. Bruins, Interscience Publishers, London, UK, 1969. 

Elsevier Trapps, London, 1982. G. In Advances in Polyurethane Technology Buist,... 

Buist, J. M. Gudgeon, H. "Advances in Polyurethane Technology" Wiley-Interscience New York, 1968,... 

Urethanes. The ability of the tin dicarboxylates to promote addition of alcohols to isocyanates suits well for the synthesis of urethanes and in polyurethane technology. ... 

Efforts are being done in our institute to screen alternative polyurethane technologies, such as water-based, (reactive) hotmelts or high solid polyurethanes (Govaert, 2014). 

---