The manifestations of neurofibromatosis are diverse: Some patients develop protruding, disfiguring nodules all over their trunks and limbs, while others have only barely noticeable "cafe au lait" spots discoloring
Patent number 5,405,622 will issue on April 11, 1995, covering the method of manufacturing a water-based gel that can undergo sterilization by gamma radiation without discoloring
, and while retaining its viscosity and clarity.
Used to prevent wilting and discoloring
, these compounds can initiate life-threatening allergic reactions in asthmatics (SN:8/17/85,p.
This non-staining and low discoloring
PPD with various food contact clearances is said to be specially designed to provide effective fatigue, oxidation and ozone protection of vulcanized rubber.
This PES also boasts excellent resistance to discoloring
by tomato-and curry-based ingredients in white (e.
At higher levels, it can cause dental fluorosis, a discoloring
(usually browning) and pitting of teeth (SN: 7/19/80, p.
the influence of light can cause discoloring
, even after the addition of UV-stabilizers.
To prevent the discoloring
anti-quinoid or non-quinoid structures must be used.