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PPAProfessional Photographers of America
PPAProfessional Photographers Association (now the British Institute of Professional Photography)
PPAPower Play Assists (hockey)
PPAPersonal Package Archive (Ubuntu)
PPAPromotional Products Association (International)
PPAPhysical Point of Attachment
PPAPurchase Price Allocation
PPAPrinting Performance Architecture
PPAPrompt Payment Act
PPAPurchased Power Adjustment
PPAPerennial Plant Association
PPAParti du Peuple Algerien
PPAPoker Players Association
PPAPrivate Passenger Auto
PPAPrior Period Adjustment
PPAPrivacy Protection Act of 1980
ppaPer Procura (Latin: by proxy)
PPAPhysiotherapy Pain Association (UK)
PPAPurchase Price Accounting
PPAPeriodic Paralysis Association (est. 1997)
PPAProsthetic Penis Attachment
PPAProfessional Putters Association
PPAPacific Planetarium Association
PPAPer Prokura (German: by proxy)
PPAProperty Protection Area
PPAPlanned Parenthood of Alabama
PPAPERSINS (Personnel Information System) Processing Activity
PPAPlanned Program Accomplishment
PPAPump Package Assembly
PPAPartners in Personal Assistance
PPAPingat Pentadbiran Awam (Public Administration Medal, Singapore)
PPAPreferred Provider Access
PPAPreferred Provider Allowance
PPAProgram in Performing Arts (Georgetown University)
PPAPermeability Plugging Apparatus (drilling industry)
PPAPartial Payment Arrangement
PPAPre-Power Amplifier
PPAProfessional Practices Assessment (Canada)
PPAProcurement Planning Agreement
PPAPennsylvania Petroleum Association
PPAPeasants Per Acre (gaming)
PPAPreferred Prescription Assistance
PPAPiss Poor Attitude (military slang)
PPAPsychophysiological Profile Assessment
PPAPrincipal Planning Agent
PPAProfessional Pharmacy Alliance
PPAPath Profile Analysis
PPAProject Performance Analysis
PPAPastor's Personal Assistant
PPAParlamento del Pueblo Aymara (Spanish: Aymara People's Parliament)
PPAPing-Pong Arbiter
PPAProfessional Programmers Association
PPAPersonal Parachute Assembly
PPAPool Players of America
PPAProgram, Project, and Activities
PPAPrinceton-Pennsylvania Proton Accelerator
PPAPre Pay and Add (purchase orders - freight charges)
PPAPeppercorns Performing Arts (UK)
PPAPatiño & Partners Abogados (Spain)
PPAPrimary Plate Analyzer
PPAPreliminary Planning Authorization
PPAPowered Pitcharound
PPAPer Patron Average (theater/cinema industry)
PPAProcess/Product Audits
PPAPrinciples, Policies and Applicability
PPAPennsylvania Pharmacists Association
PPAPeriodical Publishers Association
PPAPotential Problem Analysis
PPAPower Purchase Agreement
PPAPollution Prevention Act of 1990
PPAPharmaceutical Producers Association
PPAPeripapillary Atrophy
PPAParticipating Provider Agreement (healthcare)
PPAPrimary Progressive Aphasia (form of dementia)
PPAPrescription Pricing Authority (UK)
PPAPlanning Performance Agreement (UK spatial planning)
PPAPublic Procurement Act (various locations)
PPAPremier Bancorp, Inc. (stock symbol)
PPAPiraeus Port Authority (Greece)
PPAPhilippine Ports Authority
PPAPin Point Accuracy
PPAPoker Players Alliance
PPAPension Protection Act of 2006
PPAPlant Patent Act
PPAPolitics and Public Administration (various organizations)
PPApolyphosphoric acid
PPAPlanning Permit Application (Australia)
PPAPartnership for Prescription Assistance
PPAPesticide Producers Association
PPAPersonal Planning Analysis (financial planning)
PPAParticipatory Poverty Assessment
PPAParité de Pouvoir d'Achat (French: purchasing power parity)
PPAPreliminary Plan Approval
PPAPer Person Average
PPAPlanning, Preparation and Assessment (UK education)
PPAPreliminary Project Approval
PPAPolymer Processing Additive
PPAPennsylvania Partners in the Arts
References in periodicals archive ?
The polycondensation of hexamethylene diamine and a mixture of terephthalic and isophthalic acid (T:I = 7:3) to the polyphthalamide PA6T6I (poly[imino-(l,4-co-l, 3-dioxophenylene)-iminohexamethylenel]) was studied.
Engineers at Chrysler Group selected a grade of AMODEL polyphthalamide (PPA) from Solvay Advanced Polymers, Alpharetta, GA, for the thermostat housing on the 2.
Faced with the challenge of getting the best performance possible, engineers at Chrysler Group selected a grade of Amodel polyphthalamide (PPA) from Solvay Advanced Polymers for the thermostat housing on the 2.
One recent case in point: Amodel polyphthalamide (PPA), produced by Amoco Polymers, Alpharetta, GA, as a replacement for a diecast aluminum part used as the base for an ABS pump and motor assembly.
A polyphthalamide (PPA) introduced by Amoco Performance Products, Atlanta, is the first totally new crystalline engineering thermoplastic in the past 10 years, according to George Kwiatowski, Amoco's manager of R&D for engineering polymers.
These are advanced high-strength steels (AHSS), aluminium, magnesium, polypropylene, polyamides (PA6 and PA66), polyurethanes, acrylo-nitrile butadiene styrene (ABS), thermosetting composites, and high-performance polymers {PA11, PA12, PA46, polyphthalamide (PPA), polyphenylene sulphide (PPS), polyetheretherketone (PEEK)}.
A number of specialty resins, such as polyphthalamide (PPA), have significant amounts of aromatic character in their polymeric backbone, which causes them to absorb less moisture than aliphatic nylons like nylons 6 and 66, and do so at a slower rate.
Royal DSM NV has launched a polyphthalamide (PPA) resin named ForTii[R]Ace that it calls "a game-changer in metal replacement.
For improved mechanical properties after conditioning, Evonik offers bio-based VESTAMID Terra polyamides 610 and 1010 as well as VESTAMID HTplus polyphthalamide molding compounds for more demanding requirements with regard to temperature, chemical resistance, and low water absorption.
Evonik has expanded its metal substitute materials range, Vestamid HTplus, to include PA6T-and PA10T-based polyphthalamide (PPA) products in a growing number of compounds, including a new product variant with a glass-fibre content of 45 percent.
Wetted materials for flow transmitters include ETFE and EPDM, ASTM-PPA, Polyphthalamide, and ISO-PA6T/6I, Grivory 40% GF.
This work deals with the amidation of PET at high temperatures to the polyphthalamide PA6T (poly [iminoterephtaloyliminohexane-1,6-diyl]) and derivatives thereof by diamines DA (Scheme 1).