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What does PA stand for?

PA stands for Polyamide

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 249 other meanings of PA in our Acronym Attic

Samples in periodicals archive:

Although polyamides are often used for the production of films, hot-melt adhesives, binders, insulation, fiberglass and filaments, polyamide resins are most often used in the United States for the manufacture of extruded and molded parts, including gears, bearings, bushings, sprockets, wear pads, sheaves, pulleys, guides, tooling fixtures, cams, feed screws, wear rails, wear strips, housings, wear shoes, conveyer wheels, sleeves, insulators, scraper blades, rollers, die wear plates, telescoping boom, wear pads, slipper blocks, supports, form tools, star wheels, valve seats, wear rings, seals, wheels and rubbing blocks.
The polyamide contains 60 to 100 mole% terephthalic diamine, up to 40 mole% 1,9-nonamethylenediamine or 2-methyl-1,8-octamethylenediamine.
7,338,986 B2 Ashland Licensing and Intellectual Property LLC has received a patent for a low gloss, UV curable overprint varnish composition comprised of the reaction product of a low gloss additive, comprised of a liquid Michael addition resin, comprised of the reaction product of Michael donor and a Michael accepter, and a polyamide polymer powder, and a reactive acrylate monomer, wherein the overprint varnish composition has a lower gloss value as determined by ASTM 523-89 at 60[degrees] than an overprint varnish composition without the combination of the Michael addition resin and the polyamide powder.
Figure 1 shows a generalized structure of a polyamide built from more than one building block, wherein X, Y and Z can be any positive integer (which need not have the same value) and the "blocks" can occur in any sequence, although the amide group "link" is always the same.