Apparel articles including white polyurethane foams that...

Foundation garments – Breast or chest – e.g. – brassieres – With cup-supplementing means to add volume to breast – e.g.,...

Reexamination Certificate

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Details

C450S054000, C002S267000, C252S182240

Reexamination Certificate

active

07094127

ABSTRACT:
Surprisingly effective additive formulations for the reduction of highly undesirable yellowing or other discoloration of white, uncolored, polyurethane foam articles are provided. White polyurethane foam exhibits a susceptibility to yellowing and discoloration to a great extent, particularly in relatively short periods of time, than other types of polymeric articles. The inventive additives impart excellent low-discoloration properties over appreciable amounts of time of regular exposure to harmful elements, thereby according the pertinent industry a manner of providing white polyurethane foams for longer periods of time. Methods of producing such reliably white-colored polyurethane foams are also provided.

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patent: 6703443 (2004-03-01), Xia et al.

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