Thermoplastic liquid crystal

F. P. LaMantia (ed.), Thermoplastic Liquid Crystal Blends, Technomic Publishing, Lancaster, PA (1993). [Pg.600]

Advanced Thermoplastics Materials. Thermoplastics and linear plastics of finite molecular weight that can be fabricated into very complex structures by hot melt or injection molding are different from the thermoset materials that require cross-linking to build up infinite molecular weight to form network (cross-link) structures. Advances in thermoplastic engineering materials include amorphous thermoplastics, crystalline thermoplastics, liquid crystal thermoplastics, and fluorinated thermoplastics (see Engineering plastics). [Pg.190]

TLGP toxicity characteristic and leaching pro- TPCP thermoplastic liquid crystal polymer/... [Pg.614]

Another lamination approach is the bonding of a film of thermoplastic liquid crystal polymer (LCP) to glass. The LCP layer can be structured with microchannels dry etched in oxygen plasma using an aluminum mask. After removal of the aluminum mask, the LCP can be laminated onto glass, silicon, or a metal under pressures at temperatures around 260-270 °C [9]. Again, the temperature is too high for biomolecule pre-deposition. [Pg.1294]

Kato, S., Naito, T., and Nakamura, K., Gas-barrier and moisture-resistant injection moldings containing thermoplastic liquid crystal resins, Jap. Pat. 05305626 A2, November 19, 1993. [Pg.264]

Aciemo D, Nobile MR (1993) Processing and properties of thermotropic liquid crystalline polymers. In Mantia FPL (ed) Thermoplastic liquid crystal polymer blends. Technomic, New York, p 76... [Pg.262]

Polyester sheet products may be produced from amorphous poly(ethylene terephalate) (PET) or partiaHy crystallized PET. Acid-modified (PETA) and glycol modified (PETG) resins are used to make ultraclear sheet for packaging. Poly(butylene terephthalate) (PBT) has also been used in sheet form. Liquid-crystal polyester resins are recent entries into the market for specialty sheet. They exhibit great strength, dimensional stabHity, and inertness at temperatures above 250°C (see Polyesters,thermoplastic). [Pg.377]

Substitution of chloropolymer is possible using a variety of nucleophiles. The most common are sodium salts of alcohols and phenols. Thermoplastics are obtained using a single substituent, whereas multiple substituents of sufficiently different size lead to elastomers (2). Liquid crystal behavior similar to polysHoxanes has been noted in most homopolymers. The homopolymer formed using trifluoroethanol as a substituent has received a fair amount of academic scmtiny (7). [Pg.525]

Highly aromatic thermoplastic polyesters first beeame available in the 1960s but the original materials were somewhat difficult to process. These were followed in the 1970s by somewhat more processable materials, commonly referred to as polyarylates. More recently there has been considerable activity in liquid crystal polyesters, which are in interest as self-reinforeing heat-resisting engineering thermoplastics. [Pg.695]

Liquid crystal polyesters Polyester Thermoplastic Elastomers Poly(pivalolactone)... [Pg.924]

Liquid crystal polymers (LCP) are a recent arrival on the plastics materials scene. They have outstanding dimensional stability, high strength, stiffness, toughness and chemical resistance all combined with ease of processing. LCPs are based on thermoplastic aromatic polyesters and they have a highly ordered structure even in the molten state. When these materials are subjected to stress the molecular chains slide over one another but the ordered structure is retained. It is the retention of the highly crystalline structure which imparts the exceptional properties to LCPs. [Pg.12]

Linear chain polymers with repeating sequences of hard and soft segments Possibility of formation of liquid crystal polymers and thermoplastic elastomers... [Pg.425]

DuPont Acetal EVA Nylon 6, 6/6, 6/12, Mineral Filled 6/6, Industrial PBT PET Polyethylene Modified Thermoplastic Elastomer Ionomer Liquid Crystal Polymer ... [Pg.628]

Report 3 Advanced Composites, D.K. Thomas, RAE, Famborough. Report 4 Liquid Crystal Polymers, M.K. Cox, ICI, Wilton. Report 5 CAD/CAM in the Polymer Industry, N.W. Sandland and M.J. Sebbom, Cambridge Applied Technology. Report 8 Engineering Thermoplastics, I.T. Barrie, Consultant. Report 11 Communications Apphcations of Polymers,... [Pg.131]

Liquid crystal thermoplastics, 10 8 Liquid dessicants, 8 365-366 Liquid DGEBA resins, 10 460 Liquid diffusion, 9 109, 110-112 Liquid discharge treatment, ion-exchange, 14 422... [Pg.526]

Thermoplastic polyesters, 20 31-95. See also Liquid-crystal polymers (LCPs) blow-molded bottles, 20 45-47 bottles for demanding contents, 20 52-53... [Pg.943]

The class of polyester-based liquid crystal polymers (LCPs) represent one of the most attractive materials in the field of engineering thermoplastics because of their superior mechanical properties, heat resistance, accuracy of dimensions, moldability and the excellent balance of these properties [1-5]. LCPs have been recently expanding their applications, in particular, those for precision electronic parts appropriate for surface mount technology (SMT). [Pg.645]

Connectors, switches, electric distributors, fuse boxes and other electric fittings need a subtle balance of electrical and mechanical properties, durability, cost and aesthetics. This broad field creates fierce competition not only between engineering thermoplastics and SMC/BMC for the main applications but also with polypropylene and polyethylene or PVC for the lower performance parts and, at the opposite end of the scale, with high-tech plastics such as polyetherketone, polyetherimide, liquid crystal polymers. .. For example, without claiming to be exhaustive ... [Pg.112]

Speciality thermoplastics polysulfone (PSU), PPS, fluoroplastics, PEEK, PEI, polyamide imide (PAI), liquid crystal polymers (LCP). [Pg.775]

Injection molded thermoplastic bipolar plates made of Vectra LCP (liquid crystal polymer) and Fortron PPS fabricated by Ticona Engineering Polymers, (http //www.ticona.com/redesign/ index/markets/innovation/fuel cell.htm Ticona Engineering Polymers. 2008 accessed March 2008.)... [Pg.322]

LIQUID CRYSTALLINE MATERIALS] (Vol 15) liquid crystal thermoplastics... [Pg.571]

Some of the common types of plastics that are used are thermoplastics, such as poly(phenylene sulfide) (PPS) (see POLYMERS CONTAINING SULFUR), nylons, liquid crystal polymer (LCP), the polyesters (qv) such as polyesters that are 30% glass-fiber reinforced, and poly(ethylene terephthalate) (PET), and polyetherimide (PEI) and thermosets such as diallyl phthalate and phenolic resins (qv). Because of the wide variety of manufacturing processes and usage requirements, these materials are available in several variations which have a range of physical properties. [Pg.32]

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