Pressure-sensitive manufacture

Some of the information required may be in the form of bar codes. This has stimulated the European Pressure Sensitive Manufacturers Association (EPMSA) in line with the Article Numbering Association (ANA) EAN guidelines, to produce a standard for bar code overprinting on pressure sensitive labels. EAN bar codes can now be successfully printed onto labels using flexographies, or thermal transfer printing. 

Based on estimates of resin sales for film and sheet. Includes estimate of captive use for photographic film and pressure-sensitive tape. Table 7. U.S. Manufacturers or Distributors of Film and Sheet ... 

Uses ndReactions. Some of the principal uses for P-pinene are for manufacturing terpene resins and for thermal isomerization (pyrolysis) to myrcene. The resins are made by Lewis acid (usuaUy AlCl ) polymerization of P-pinene, either as a homopolymer or as a copolymer with other terpenes such as limonene. P-Pinene polymerizes much easier than a-pinene and the resins are usehil in pressure-sensitive adhesives, hot-melt adhesives and coatings, and elastomeric sealants. One of the first syntheses of a new fragrance chemical from turpentine sources used formaldehyde with P-pinene in a Prins reaction to produce the alcohol, Nopol (26) (59). 

Short-chain alkylated biphenyls are the principal biphenyl derivatives in commercial use. They are generally produced by Hquid-phase Friedel-Crafts alkylation of biphenyl with ethylene, propylene, or mixed butenes. A series of mixed ethylated biphenyl heat-transfer fluids (trademarked Therm S-600, 700, 800) is marketed by Nippon Steel. A mixed diethylbenzene—ethylbiphenyl heat-transfer fluid is also available from Dow (63). Monoisopropylbiphenyl [25640-78-2] largely as a mixture of meta- and para-isomers is produced by Koch Chemical Co. Monoisopropylbiphenyl (MIPB) was selected by Westinghouse (64,65) as a PCB replacement in capacitors and this is its primary appHcation today. For a time MIPB was also employed as a PCB replacement in pressure sensitive copy paper, but this outlet has since given way to other dye solvents. A similar product consisting of a mixture of j -butylbiphenyl isomers [38784-93-9] (66) is currently the favored dye solvent for pressure sensitive copy paper (67) manufactured in the United States. 

Strain-gauge pressure transducers are manufactured in many forms for measuring gauge, absolute, and differential pressures and vacuum. Full-scale ranges from 25.4 mm of water to 10,134 MPa are available. Strain gauges bonded direc tly to a diaphragm pressure-sensitive element usually have an extremely fast response time and are suitable for high-frequency dynamic-pressure measurements. 

Although pressure-sensitive and hot-melt adhesives can be manufactured, they are not common because lower-cost formulations using other elastomers can be prepared. 

For clear labels, which arc growing in demand, manufacturers have turned to off-line-produced pressure-sensitive labels, which the labeler purchases and applies to the bottle. However, this option is very expensive, primarily because of the cost of the release paper. The adhesives used for such processes are those used in conventional PSA label manufacturing, as discussed elsewhere in this volume. 

Pressure-sensitive adhesives (PSAs) based on acrylic, natural rubber and silicone are employed primarily for ease of application. To name Just a few applications, PSAs bond decals to surfaces, interior decorative surfaces to interior panels, interior trim pieces in place directly or hook and loop tape for the same purpose, structural shims in place during manufacturing and acoustic (sound deadening) materials to body skin interior surfaces. Tape products with pressure-sensitive adhesive on one or both surfaces are used for such functions as cargo compartment sealing, as a fluid barrier to prevent spills and leaks in the lavatories and... 

In addition to the petrolatum tapes and those based on a laminate of p.e. or p.v.c. with an elastomeric sealant or pressure-sensitive adhesive layer, recent developments have centred around self-adhesive bituminous laminates. These tapes are commonly constructed with a p.v.c. backing, whose thickness ranges from 0 08 to 0 75 mm and a bituminous adhesive compound layer to provide a total tape thickness of up to 2 mm. In order to maintain conformability without compromising impact values, tapes may also be manufactured with a fabric reinforcement within the bituminous layer. 

Poly(dichlorophosphazene), 19 56 Polydicyclopentadiene, 8 231 20 432, 433 manufacture of, 20 430 properties of, 20 4221 Polydicyclopentadiene, 26 946-947 Polydime thy lsilane (PDMS). See also Polydimethylsiloxane entries biodegradability of, 22 604-605 lotus effect in, 22 123 pressure-sensitive adhesives and,... 

Orlando, FL, 6th-8th May, 1998, p.15-24. 6A7 EFFECT OF MAXIMUM ACHIEVABLE CONTROL TECHNOLOGY ON PRESSURE SENSITIVE TAPE MANUFACTURING... 

Johnston, Pressure-Sensitive Tapes AGuide to Their Function, Design, Manufacture and Use, Pressure Sensitive Tape Gouncil, Northbrook, IL, (2003). 

Ethylhexyl acrylate manufacture represented about 15 percent of domestic consumption of the alcohol. The acrylate is the longest chain acrylate ester produced by esterification of acrylic acid. The monomer is used in acrylic copolymers for pressure sensitive adhesives, PVC impact modifiers, and as a comonomer with vinyl acetate and vinyl chloride in latexes for paints and textiles. Growth over the next 5 years is estimated at 6 percent per year. 

Figure 14.13 Example of a line for the manufacture of pressure-sensitive adhesives...

Readers often inquire about relatively easy manufacture of an inexpensive, thin, pressure-sensitive switch that can be slipped under a door or floor mat, in a chair, or into the trunk of a car, which will detonate when heavy luggage is piled on top. Figure 13 shows such a device. 

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