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Silicone rubber is a reliable solution (as opposed to rubber and thermoplastic elastomers) for migration or interaction problems between the main active ingredients. Its chemical stability prevents it from affecting any substrate it is in contact with (skin, water, blood, active ingredients, etc.). [15]
The Fitzpatrick scale has been criticized for its Eurocentric bias and insufficient representation of global skin color diversity. [9] The scale originally was developed for classifying "white skin" in response to solar radiation, [2] and initially included only four categories focused on white skin, with "brown" and "black" skin types (V and VI) added as an afterthought.
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TPE is commonly used to make suspension bushings for automotive performance applications because of its greater resistance to deformation when compared to regular rubber bushings. Thermoplastics have experienced growth in the heating, ventilation, and air conditioning ( HVAC ) industry due to the function, cost effectiveness and adaptability to ...
A reborn doll is a hand made art doll that resembles a human infant with as much realism as possible. The process of creating a reborn doll is referred to as reborning and the doll artists are referred to as reborners. [1] [2] Reborn dolls may be created from a blank kit or from a manufactured doll and are also known as lifelike dolls or reborn ...
The doll has very black skin, eyes rimmed in white, clown lips, and frizzy hair, and has been described as an anti-black caricature. [42] Early mass-produced black dolls were typically dark versions of their white counterparts. The earliest American black dolls with realistic African facial features were made in the 1960s.
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Sheet of synthetic rubber coming off the rolling mill at the plant of Goodrich (1941) World War II poster about synthetic rubber tires. Production of synthetic rubber in the United States expanded greatly during World War II since the Axis powers controlled nearly all the world's limited supplies of natural rubber by mid-1942, following the Japanese conquest of most of Asia, particularly in ...