Microporous material exhibiting increased whiteness retention

Details Microporous material exhibiting increased whiteness retention Microporous material exhibiting increased whiteness retention

1992-11-18

1994-07-05

Green, Anthony

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106400, 106401, 811565, 4283179, C08K 722, C04B 1608

Patent

active

053263910

ABSTRACT:
The tendency of microporous material to discolor over a period of time when exposed to the atmosphere during normal usage can be reduced if the microporous material comprises whiteness retaining organic surface active agent.

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R. S. Solvik et al, "Control of yellowing in TiO.sub.2 -pigmented HDPE", Modern Plastics, Jan. 1974, pp. 78-82.
W-H. Hemmpel, "Yellowing of textiles during storage--possible causes and preventative measures", International Textile Bulletin--Dyeing/Printing/Finishing, v. 31, 3rd Quarter, 1985, pp. 21-24.
V. S. Salvin et al, "Yellowingh of White Fabrics due to Air Pollutants" University of North Carolina at Greensboro, pp. 40-51. (no date).
R. K. Iler, The Chemistry of Silica, John Wiley and Sons, (1979), pp. 570-573; 680-681; 686-687; 706-707.
"Barrier Materials, Flexible, Electrostatic Portective, Heat Sealable", Military Specification MIL-B-81705C, pp. 1-31, 1989.

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