Floral foams

Flophemsyl reagents Floral bouquet Floral foam Floral fragrances Floral odor... 

Foam. PhenoHc resin foam is a cured system composed of open and closed ceUs with an overall density of 16—800 g/cm. Principal appHcations are in the areas of insulation and sponge-like floral foam. The resins are aqueous resoles cataly2ed by NaOH at a formaldehyde phenol ratio of ca 2 1. Free phenol and formaldehyde content should be low, although urea may be used as a formaldehyde scavenger. 

Floral Foam. In the U.S. and Western European countries the most popular use of phenol foam for floral applications is a water-soaked foam using a resol-type composition. It is important to maximize the open-cell content in order to inq)rove its water penetration. Floral foam is produced as laige block or slab by a batch process. The foam is easily cut and packaged with a minimum of loss due to waste. Floral foam is commonly used for living flowers, but is not used for dried and artificial flowers. 

Rigid foams tend to be closed cell in nature, and this characteristic is necessary for some of the typical application areas such as thermal insulation and floatation aids. Some rigid foams do exist however with an open cell structure such as the phenol-fonnaldehyde-based horticultural and floral foams. 

Cellular plastics, mainly polystyrene, are used for display and novelty pieces because of ease of fabrication, light weight, attractive appearance, and low cost. Phenolic foam is used in floral displays, where it can hold large amounts of water for long periods. Polyurethane and polystyrene foams are also used in other floral applications. Cellular poly(vinyl chloride) is used in toys and athletic goods. 

Shredded foam may be used as void liII material or thermal insulation or construchon products. Ground PS foam is used in floral vase stuffing, lawn furniture fill, and in plant nurseries as soil lightener to improve aeration. PS foam beads can also be used with concrete to make lightweight insulating material for use in highway road beds, railroad beds, and airport runways. PS foam can also be an oil spill clean-up material. 

Toxicology LD50 (oral, rat) > 5 g/kg, (skin, rabbit) > 5 g/kg TSCA listed Uses Fragrance in cosmetics, shampoos, foam baths, soaps, acid cleaners, alcoholic lotions, antiperspirants, deodorant sticks, bleaches, detergents, fabric softeners, hard surf, cleaners flavoring agent in foods, floral and fruit flavors Use Level Up to 10%... 

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