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Thermoplastic polyurethane (TPU) is any of a class of polyurethane plastics with many properties, including elasticity, transparency, and resistance to oil, grease, and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.
The child-resistant locking closure for containers was invented in 1967 by Dr. Henri Breault. [7]A history of accidents involving children opening household packaging and ingesting the contents led the United States Congress to pass the Poison Prevention Packaging Act of 1970, authored by U.S. Senator Frank E. Moss of Utah.
Poison Prevention Packaging Act of 1970; Long title: An Act to amend the Federal Hazardous Substances Act to provide for child resistant packaging to protect children from serious personal injury or serious illness resulting from handling, using, or ingesting a hazardous substance, and for other purposes.
Polyurethane synthesis, wherein the urethane groups −NH−(C=O)−O− link the molecular units A kitchen sponge made of polyurethane foam . Polyurethane (/ ˌ p ɒ l i ˈ jʊər ə ˌ θ eɪ n,-j ʊəˈr ɛ θ eɪ n /; [1] often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links.
National Program for Playground Safety helps the public create safe and developmentally appropriate play environments for children. Consumer Product Safety Commission "Public Playground Safety Checklist" provides an open forum for the development of high-quality, market-relevant international standards used around the world.
Polylactic acid (polylactide) is a compostable thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States), sugar beet pulp (in Europe), tapioca roots, chips or starch (mostly in Asia), or sugarcane. It is the most common material used for 3D printing with fused deposition modeling (FDM ...
What's a safe age? The American Academy of Pediatrics recommends waiting until age 5 to introduce gum to children. This is usually the age when children can chew well, ...
Tygon 2075 Ultra Chemical Resistant Tubing is a plasticizer-free material that is known for its high degree of chemical resistance. It can be used in ink and printing fluid dispensing, paint and solvent production, and is resistant to MEK and other chemicals. When properly incinerated it releases only carbon dioxide and water.