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An assortment of polyurethane foam products for cushioning and insulation. Polyurethane foam is a solid polymeric foam based on polyurethane chemistry. As a specialist synthetic material with highly diverse applications, polyurethane foams are primarily used for thermal insulation and as a cushioning material in mattresses, upholstered furniture or as seating in vehicles.
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.
PU telescopic sight from above. The PU scope (ПУ, прицел укороченный, 'Scope short-cut' in comparison to PE/PEM telescopic sight) is a 3.5×21 telescopic sight of Soviet manufacture, widely used since 1940 on the SVT-40 rifle for which it was originally designed and since 1942 on the Mosin–Nagant rifle.
The main decay mode for isotopes heavier than 244 Pu, along with 241 Pu and 243 Pu, is beta emission, forming americium isotopes (95 protons). Plutonium-241 is the parent isotope of the neptunium series, decaying to americium-241 via beta emission. [11] [26] Plutonium-238 and 239 are the most widely synthesized isotopes.
On April 6, 1997, a married couple were attacked and murdered during their fishing trip by a known acquaintance at a fish farm in Charlotte County, Florida. [2]On that day itself, 25-year-old Gregory Philip Malnory Jr. (commonly known as Greg Malnory) and his 26-year-old wife Kimberly Ann Malnory (or Kim Malnory) were invited over to the South Florida Sod Farm by Greg's 37-year-old co-worker ...
The International Loadstar is a series of trucks that were produced by International Harvester from 1962 to 1978. [1] The first purpose-built medium-duty truck designed by the company, International slotted the Loadstar between its light-duty pickup trucks (initially the C-series, later the D-series) and the heavy-duty R-series.
In Chinese, characters for the elements are the last officially created and recognized characters in the Chinese writing system.Unlike characters for unofficial varieties of Chinese (e.g., written Cantonese) or other now-defunct ad hoc characters (e.g., those by the Empress Wu), the names for the elements are official, consistent, and taught (with Mandarin pronunciation) to every Chinese and ...
The Patrol has been available as either a short-wheelbase (SWB) three-door or a long-wheelbase (LWB) five-door chassis since 1951. The LWB version has been offered in pickup truck and cab chassis variants. Between 1988 and 1994, Ford Australia marketed the Patrol as the Ford Maverick.