Polyurethane refers to a class of polymers composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from a wide range of starting materials. This chemical variety produces polyurethanes with different chemical structures leading to many different applications. These include rigid and flexible foams, and coatings, adhesives, electrical potting compounds, and fibers such as spandex and polyurethane laminate (PUL). Foams are the largest application accounting for 67% of all polyurethane produced in 2016.
![<span class="mw-page-title-main">Silicone</span> Family of polymers of the repeating form [R2Si–O–SiR2]](https://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Caulking.jpg/320px-Caulking.jpg)
In organosilicon and polymer chemistry, a silicone or polysiloxane is a polymer composed of repeating units of siloxane. They are typically colorless oils or rubber-like substances. Silicones are used in sealants, adhesives, lubricants, medicine, cooking utensils, thermal insulation, and electrical insulation. Some common forms include silicone oil, grease, rubber, resin, and caulk.
Petrochemicals are the chemical products obtained from petroleum by refining. Some chemical compounds made from petroleum are also obtained from other fossil fuels, such as coal or natural gas, or renewable sources such as maize, palm fruit or sugar cane.
Turnhout is a Belgian municipality and city located in the Flemish province of Antwerp. The municipality comprises only the city of Turnhout proper. In 2021, its population was 45,874. The total area is 56.06 km2 (21.64 sq mi). The agglomeration is much more populous, with 81,473 inhabitants. It is known for its playing card industry, and houses the head office of the world's largest manufacturer of playing cards, Cartamundi. Turnhout is also the capital of the administrative district with the same name. The city council often promotes the city as "the capital of the Kempen area". This designation is entirely unofficial, since the Kempen area is far larger than the Turnhout district and does not form an administrative unit.
In organic chemistry, a polyol is an organic compound containing multiple hydroxyl groups. The term "polyol" can have slightly different meanings depending on whether it is used in food science or polymer chemistry. Polyols containing two, three and four hydroxyl groups are diols, triols, and tetrols, respectively.
Methylene diphenyl diisocyanate (MDI) is an aromatic diisocyanate. Three isomers are common, varying by the positions of the isocyanate groups around the rings: 2,2′-MDI, 2,4′-MDI, and 4,4′-MDI. The 4,4′ isomer is most widely used, and is also known as 4,4′-diphenylmethane diisocyanate. This isomer is also known as Pure MDI. MDI reacts with polyols in the manufacture of polyurethane. It is the most produced diisocyanate, accounting for 61.3% of the global market in the year 2000.
Lotto–Dstny is a Belgian professional cycling team at UCI ProTeam level sponsored by the Belgian lottery and Dstny, a business communications provider. The same organisations also sponsor a women's cycling team, Lotto–Dstny Ladies.
The Campine or De Kempen is a natural region situated chiefly in north-eastern Belgium and parts of the south-eastern Netherlands which once consisted mainly of extensive moors, tracts of sandy heath, and wetlands. It encompasses a large northern and eastern portion of Antwerp Province and adjacent parts of Limburg in Belgium, as well as portions of the Dutch province of North Brabant and Dutch Limburg around Weert.
Hot-melt adhesive (HMA), also known as hot glue, is a form of thermoplastic adhesive that is commonly sold as solid cylindrical sticks of various diameters designed to be applied using a hot glue gun. The gun uses a continuous-duty heating element to melt the plastic glue, which the user pushes through the gun either with a mechanical trigger mechanism on the gun, or with direct finger pressure. The glue squeezed out of the heated nozzle is initially hot enough to burn and even blister skin. The glue is sticky when hot, and solidifies in a few seconds to one minute. Hot-melt adhesives can also be applied by dipping or spraying, and are popular with hobbyists and crafters both for affixing and as an inexpensive alternative to resin casting.
Sealant is a substance used to block the passage of fluids through openings in materials, a type of mechanical seal. In building construction sealant is sometimes synonymous with caulk and also serve the purposes of blocking dust, sound and heat transmission. Sealants may be weak or strong, flexible or rigid, permanent or temporary. Sealants are not adhesives but some have adhesive qualities and are called adhesive-sealants or structural sealants.
Pidilite Industries Limited is an Indian Multinational adhesives manufacturing company based in Andheri (East), Mumbai. The company is the dominant and leading adhesives company in India. Pidilite also manufactures products across verticals such as art materials and stationery; food and fabric care; car products, adhesives, and sealants; and speciality industrial products like adhesives, pigments; textile resins, leather chemicals, and construction chemicals.
Hip and buttock padding is used to increase the apparent size of the hips and buttocks in order to increase apparent waist-hip ratio which implies more feminine body shape. It is used by people of various genders: cis women wishing to increase their physical attractiveness, trans women and cross-dressers attempting to pass, and performers aiming for exaggerated figure, both men in drag and women. This technique is often used by drag queens to create the illusion of a feminine figure, often taking it to the extreme for comedic value.
A sponge is a cleaning aid made of soft, porous material. Typically used for cleaning impervious surfaces, sponges are especially good at absorbing water and water-based solutions.
Studio 100 NV is a Belgian production company with four television channels, four animation studios and eight theme parks all over the world. The headquarters of the group is in Schelle, along with offices in Breda, Munich, Paris, New York, Sydney and Los Angeles.
DAP Products, Inc. is a manufacturer of latex caulks, silicone sealants, adhesives, insulating foams, and patch & repair products. DAP has been made in the USA since 1864 and headquartered in Baltimore, MD since 1998.
A thermoset polymer matrix is a synthetic polymer reinforcement where polymers act as binder or matrix to secure in place incorporated particulates, fibres or other reinforcements. They were first developed for structural applications, such as glass-reinforced plastic radar domes on aircraft and graphite-epoxy payload bay doors on the Space Shuttle.
UFP Technologies, Inc., founded in 1963 and based in Newburyport, Massachusetts, is a designer and custom manufacturer of components, sub-assemblies, products and packaging utilizing highly specialized foams, films, and plastics primarily for the medical market.
The 2017 Tour of Flanders for Women was the 14th running of the Tour of Flanders for Women, a women's bicycle race in Belgium. It was held on 2 April 2017, as the fifth race of the 2017 UCI Women's World Tour season over a distance of 153.2 kilometres.
Akemi GmbH is a company in the chemical industry which is active worldwide. Its headquarters are in Nuremberg in Germany and its core competence is the manufacturing of two-component adhesive systems. The chemical-technical specialist factory manufactures adhesives, fillers as well as cleaning and care products for the natural stone sector. In addition, it produces fillers and repair materials, sealants, protective coatings, varnishes as well as cleaning and car care products for the automotive branch.
