RESINOGRAPHY 



The technology is almost certain to develop 

 as the microscopy, interpretations and con- 

 clusions develop. 



Nature of Information Obtained Micro- 

 scopically 



The nature of resinographical information 

 has been discussed in terms of four kinds of 

 architectural units and four kinds of micro- 

 scopes. In conclusion, reference is made to 

 the finished product, in terms of fabrication, 

 end-use and gross-texture (1). These can 

 only be suggested because of restricted 

 space. 



In rubber tires, for example, (Figure 13) 

 one may be interested in the thickness of 

 tread or retread, occurrence of reclaimed 

 rubber, distribution of carbon or white re- 

 inforcing agent, layers of gum-stock, num- 

 ber of plies of cord, kinds of cordage fibers, 

 construction of bead, etc. In these and other 

 rubber products one may be interested in 

 variations in texture of the rubber due to 

 poor distribution of accelerator, retardant 

 or antioxidant. The distributions of sizes 

 and shapes of pigments, fillers or abrasives 

 may be important in rubber products, (Fig- 

 ure 14) writing boards, floor and table cover- 

 ings, pavements, and paints. 



Related to paints is the resinographic 

 examination of inks, lacquers, pohshes, ad- 

 hesives, mastics and casting resins. Mold- 

 able resins are generally solids, as powders, 

 grains or preforms. Some polymeric cements 

 and adhesives are also marketed dry. 



In painted, inked, varnished or lacc^uered 

 surfaces there may be the question of num- 

 ber, thickness, uniformity and adherence of 

 layers. There are similar problems with 

 laminates of wood, paper, cardboard, fabrics, 

 poljTiieric foils and adhesive tapes. Coatings 



may also be important on leather, fabrics, 

 and other materials of decoration, safety, 

 clothing, upholstery, housing, packaging and 

 industry. Resins and/or high polymers are 

 an inherent part of non-woven fabrics and 

 papers of high wet and dry strength. 



Whatever the state of fabrication and use 

 of the resin or high polymer the resinog- 

 rapher must be prepared to show the texture 

 and structure of its units in situ. 



REFERENCES 



1. RocHow, T. G., AND Gilbert, R. L., "Resin- 



ography," Chap. 5, Vol. V, "Protective and 

 Decorative Coatings," edited by J. J. Mat- 

 tiello, Wiley, New York, New York (1946). 



2. Clark, G. L., Editor-in-Chief, "The Encyclo- 



pedia of Chemistrj'," pp. 220-3, Reinhold 

 Publishing Corporation, New York, (1957). 



3. Chamot, E. M., and Mason, C. W., "Handbook 



of Chemical Microscopy," Vol. I, 3rd edition, 

 Wiley, New York, (1958). 



4. BoTTY, M. C, Felton, C. D., and Anderson, 



R. E., "Microscopy of Experimental Fibers," 

 /. Textile Research Institute (1960). 



5. Thomas, W. M., Thomas, A. ]M., and Deich- 



ERT, W. G., "Microscopical Study of Heter- 

 ogeneous Polymerization," International 

 Symposium on Macromolecules (Interna- 

 tional Union of Pure and Applied Chemis- 

 try), Wiesbaden, Germany, October, 1959. 



6. Saylor, C. p., "The intangible isolation of con- 



taminants within purified substances," 

 Gordon Research Conference on Separation 

 and Purification, 1954, Science 119, 6 (Apr. 16, 

 1954). 



7. RocHOW, T. G., RocHOW, E. G., "The Size of 



Silicone Molecules," Science, 111, 271-275 

 (1950). 



8. Moore, L. D., Peck, V. G., "Study of Particles 



Present in Some High Pressure Polyethyl- 

 enes," J. Polymer Sci., 36,141-153 (1959). 



9. RocHow, T. G., Thomas, A. M., Botty, M. C, 



review on "Electron Microscopy'," Anal. 

 Chem., 32, 99R (1960). 



T. G. RocHow 



537 



