Resins from sugar 51 Sulphonamide resins 51 12. The organization of the synthetic resin industry: Horizontal relationships between resin producers 52 Vertical relationships between resin producers: Tar-acid resins for molding 53 Tar-acid resins for laminating 54 Cast phenolic resins 54 Tar-acid resins for coatings 55 Tar-acid resins for miscellaneous uses 55 Alkyd resins made from phthalic anhydride 55 Alkyd resins made from maleic anhydride 55 Urea resins for molding 56 Urea resins for other uses 56 Coumarone and indene resins 56 Other resins 56 Relationship of the resin industry to other industries: The chemical industry 56 The surface-coating industry 57 The electric industry 57 The auto industry 57 13. The United States tariff and international trade in synthetic resins 58 Rapid expansion in home markets 59 The effect of patents on international trade 59 The United States tariff on resins and resin products: Synthetic resins 60 Articles made of synthetic resin 61 14. Synthetic resin prices, properties, and uses: Synthetic resins as substitutes 62 Motives for substitution 63 Materials displaced by synthetic resins 63 Competition between synthetic resins 63 Resins classified by cost 64 The physical properties of a resin and its uses 65 15. Synthetic resins in other countries: Germany: Production 75 Tar-acid resins 75 Alkyd resins 76 Urea resins 76