Mechanical caulking

The room-temperature bonding of large-scale integration (LSI) chips on a resin film made of PEN can be achieved by mechanical caulking of a cone-shaped bump electrode made from gold [94,95]. 

Shuto T, Watanabe N, Ikeda A, Asano T. Room-temperature microjoining of LSI chips on poly(ethylene naphthalate) film using mechanical caulking of au cone bump. Jap J Appl Phys 2012 51. 

Compressed gas systems were originally developed simply to provide a means of expelling a product from its container when the valve was depressed. SemisoHd products such as a cream, ointment, or caulking compound are dispensed as such. A Hquid concentrate and a compressed gas propellant (Fig. 3) produce a spray when a mechanical breakup actuator is used. Nitrogen, insoluble in most materials, is generally used as the propellant. 

Tires, tubes, and other pneumatic products, 83% automotive mechanical goods, 6% adhesives, caulks, and sealants, 6% pharmaceutical uses, 4% miscellaneous, 1%... 

Polysiloxanes (silicones) are one of the most studied classes of polymers. They exhibit a variety of useful properties not common to non-metal-contain-ing macromolecules. They are characterized by combinations of chemical, mechanical, electrical, and other properties that, when taken together, are not found in any other commercially available class of materials. The initial footprints on the moon were made by polysiloxanes. Polysiloxanes are currently sold as high-performance caulks, lubricants, antifoaming agents, window gaskets, O-rings, contact lens, and numerous and variable human biological implants and prosthetics, to mention just a few of their applications. 

Use Sealants and caulking agents adhesives films and linings shoe uppers and heels encapsulation of electronic parts binders for rocket propellants abrasive wheels and other mechanical items automobile bumpers, fenders, and other components. Foams... 

Paradene . [Neville] Coumarone-in-dene resin used in adhesives, coatings for aluminum, citrus fruit emulsion, epoxy, industrial, marine, pqier, traf- wire A cabl rubber (cements, mechanical and mirided goods, tires), and caulking conqxls. 

Isoprene CH—C—CH=CH, 1 CHj cis-1,4-Polyisoprene —f CH2 C=CH-CH2 CH3 Tires, mechanical goods, footwear, sealants, caulking compounds, e.g.. Coral, Natsyn, Clariflex I. 

Sealants and caulks. Sealants and caulks provide a barrier to the passage of gases, liquids, and solids maintain pressure differences and moderate mechanical and thermal shock. While adhesives are used for load transfer and require high tensile and shear strengths, sealants act as insulators and shock attenuators and do not require high tensile and shear strengths. 

The epoxy polysulfide formulations are comparatively fast setting, with a short pot life. In filling a crack on a horizontal slab, the crack is widened by mechanical means to form a slight trough. The mixed compound may then be introduced into the crack by means of a caulking gun, or dispensed through a narrow spout. 

Isoprene Ziegler-Natta-catalyzed chain polymerization Car tires (55%), mechanical goods, sporting goods, footwear, sealants, and caulking compounds... 

Yan et al. [52] explored the use of IPN techniques to produce a composite vinyl-acrylic latex. The first-formed polymer was produced using VAc and divinyl benzene (DVB), while the second formed polymer constituted a BA/DVB copolymer. In both cases the DVB was added at 0.4 wt%. They compared this product with another product, a bidirectional interpenetrating netwodc (BIPN) in which VAc was again polymerized over the first IPN. They noted that the compatibility between the phases was more pronounced in the BIPN than in the IPN as determined using dynamic mechanical measurements and C nuclear magnetic resonance spectroscopy. The concept of polymer miscibility has also been used to produce composite latex particles and thus modify the pafamance properties of VAc latexes. Bott et al. [53] describe a process whereby they bloid VAc/ethylene (VAc/E) copolymers with copolymers of acrylic acid or maleic anhydride and determine windows of miscibility. Apparently an ethyl acrylate or BA copolymer with 10-25 wt% AA is compatible with a VAc/E copolymer of 5-30 wt% ethylene. The information obtained from this woik was then used to form blends of latex polymers by polymerizing suitable mixtures of monomers into preformed VAc/E copolymers. The products are said to be useful for coating adhesives and caulks. 

MAJOR APPLICATIONS ds-l,4-Polyisoprene is used in tires and tire products, foam rubber, rubber sheeting, rubber bands, hoses, gaskets, belts, molded and mechanical goods, footwear and sporting goods, gloves, sealants, adhesives, bottle nipple, caulking, and other typical elastomer applications. 

Uses Flame retardant in adhesives (mastic, pressure sensitive), coatings (aluminum, can drum, emulsion, fabric, industrial, marine, traffic, wire cable), rubber (cements, mechanical and molded goods), textiles, concrete-curing compds., caulking compds. plasticizer for resins EP agent in metalworking fluids Features Stable low vise. exc. sol. 

Uses Emulsion for high solids mastics, caulks, sealants, joint cements, fire-retardant coatings, paper and felt saturation Features Chemical and mechanical stability produces highly loaded formulations with rheological chars. produces films that are clear, transparent, and odorless... 

Polypropylene (PP) is a thermoplastic material that is produced by polymerizing propylene molecules, which are the monomer units, into very long polymer molecules or chains. There are a number of different ways to link the monomers together, but PP as a commercially used material in its most widely used form is made with catalysts that produce crystallizable polymer chains. These give rise to a product that is a semicrystalline solid with good physical, mechanical, and thermal properties. Another form of PP, produced in much lower volumes as a byproduct of semicrystalline PP production and having very poor mechanical and thermal properties, is a soft, tacky material used in adhesives, sealants, and caulk products. The above two products are often referred to as isotactic (crystallizable) PP (i-PP) and atactic (noncrystallizable) PP (a-PP), respectively. 

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