New Technologies for Clear Air Care Applications

Transcription

1 New Technologies for Clear Air Care Applications 1

2 Topics Definitions Progression of Technology How Gels are Formed Properties of Modified Polyamide Gellants Performance in Container Candles and Pillar Candles Benefits of Clear Technology Questions & Answers 2

3 About Arizona Chemical.. World s largest manufacturer of pine chemicals Manufacturing facilities located in the U.S. and Europe Sales offices in U.S., Europe, Asia, and Latin America. Headquartered in Jacksonville, Florida Owned by International Paper 3

4 Definitions Wax A low-melting organic mixture or compound of high molecular weight, solid at room temperature, and generally similar in composition to fats and oils, except that it contains no glycerides. Waxes are based on either natural, synthetic, or petroleum sources. Gellant A compound that dissolves in the liquid hot and solidifies, or gels, the bulk when cooled. Gel strength is concentration dependent. Specially modified polyamides, the subject of this presentation, are gellants. Gel A larger amount of a fluid rendered significantly elastic by a smaller amount of a gelling agent (gellant). A gel may be notably elastic and jellylike or solid and rigid. 4

5 Polyamide Gellants Polyamide resins are produced from dimerized fatty acids, a co-product of wood pulping or other fatty acid processing. Use of polyamides as gellants is well known. However, the use of these resins in air care applications has historically been limited due to: Dark color of resins Brittleness of candles Poor burn characteristics Recent advances in polyamide technology have resulted in patented and patent-pending gellants that produce clear gels which overcome past limitations and offer unique characteristics for the air care market. 5

6 Technology Progression The use of standard polyamide resins in clear candles was attempted by several companies in the 1970 s and 1980 s, with little success. These candles were dark in color, brittle, and exhibited syneresis. Mid 1990 s, Union Camp Corporation developed a patented, specially modified polyamide (ester terminated polyamide resin, trade named Uniclear ), which overcame these issues. Clear candles and air fresheners were manufactured and sold globally. Union Camp was acquired by International Paper (owner of Arizona Chemical) in Continuing improvements in the modified polyamide technology, including patented and patentpending next-generation resins (tradenamed Sylvaclear and Uniclear ) offer improvements in gel strength, flexibility, clarity, and compatibility with both polar and non-polar solvents for the air care market. 6

7 Modified Polyamide Gellants. N H O C O C N H R N H O C O C N H R O C N H R Solvent-loving area Gels are formed as a result of hydrogen bonding between the amide groups 7

8 Sylvaclear Modified Polyamide Gellants Unique properties of specially modified Sylvaclear resins Light color (Gardner ) Controllable gel strength Can range from soft, shear thinning gels to wax-like solids Added flexibility to harder gels Solid gels that can bounce, which dramatically improves the tendency to crack at low temperatures High fragrance loading Resins can gel fragrances at up to 50% loading and still maintain hardness Both polar and non-polar fragrances can be gelled, depending on resin selection 8

9 Sylvaclear Polyamide Gellants Unique properties of specially modified Sylvaclear resins Ability to gel both polar and non-polar solvents (mineral oils, vegetable oils) Clear mineral oil or vegetable oil candles possible Excellent mold fidelity/no double pours required Non toxic/non irritating Low viscosity profile Linear fragrance release characteristics 9

10 Viscosity vs. Temperature Profile Sylvaclear Gellants Sylvaclear gellants have low melt viscosities, and thus when formulated into gels, behave more like paraffin wax at the melting/pour point Viscosity (cps) Sylvaclear A200 resin Temperature (degrees C) 10

11 Fragrance Release Specialty Polyamide Resins % weight loss % hexyl acetate/polyamide resin Hexyl acetate day 0 day 1 day 2 day 3 day 4 day 5 time (days) day 10 day 15 day 20 day 25 Linear release: no massive spike or tailing. Volatiles leave at the same rate as ungelled systems. Sylvaclear A200 resin 11

12 Container Candle Attributes Sylvaclear PA20 Blend Sylvaclear PA20 is a pre-blended clear gel designed for use in container candles and air fresheners Melting point 68º C, Viscosity 9 90 C Typical burn pool temperature ºC Light color (Gardner 0.2) Rapid cooling (average under 1 hour for 8 ounce jar, depending on conditions) Base flash point 175 ºC Crystal clear, no entrapped air bubbles Single pour 12

13 Typical Burn Data Sylvaclear PA20 Burn Time Flame Height Pool Temp Wall Temp Smoking Pool Size Syneresis 17 hours 22 mm 69.3 º C 62.5 º C None 1.6 inches None Sample Size: 50 grams in a 2 ounce glass jar, 3% fragrance 13

14 Pillar Candle Attributes Sylvaclear PA50 Blend Sylvaclear PA50 is a pre-blended clear, solid gel designed for use in pillar candles, air fresheners, and other fragranced air care products. Melting point º85 C, Viscosity C Typical burn pool temperature ºC Light color (Gardner ) Rapid cooling (average under 2 hours for 3X4 pillar, depending on conditions) Base flash point 189 ºC Crystal clear, no entrapped air bubbles Single pour 14

15 Typical Burn Data Sylvaclear PA50 Burn Time Flame Height Pool Temp Wall Temp Smoking Pool Size Syneresis 30 hours 20 mm 90 º C 38 º C None 1.6 inches None Sample Size: 250 grams, 3% fragrance, coated with Sylvacote 2228E polyamide blend 15

16 Benefits of Clear Polyamide Gel Technologies New, innovative products to bring to customers unlimited design potential Based on renewable resources Flexibility with finished products Clear candles (vegetable or mineral oil based) Free standing or container Air fresheners and other fragranced articles You select the firmness Manufacturing efficiencies 16

17 Benefits of Clear Polyamide Gel Technologies Lower processing temperatures for container blends Low viscosity easier to handle and pour Single pour products for both pillars and container blends High fragrance loading with excellent fragrance compatibility 17