(Photo: http://www.

Manufacturers, suppliers and distributors of raw rubber and rubber compounds.

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Polyethylenes offer a wide range of properties
due to differences in structure and molecular weight, and the Practical Guide
gives the low down on the properties, including, amongst others, rheological,
mechanical, chemical, thermal, and electrical properties. This includes: joining,
assembly /fabrication, machining, joints, mechanical fastening, and decorating. Brittle fracture is a primary concern of the utility
engineer when evaluating the use of composite insulators," said James
Schmiedeknecht , VP International Sales and Marketing at MacLean Power Systems.

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Research and Markets: The Essential Step -By-Step Guide to Polyethylene

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"The major insulator manufacturers have paid particular attention to sealing
the end fitting of the FRP rod, silicone rubber housing junction and several
have designed redundant seal systems.

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2 Basic Types
Describes the basic types of PE available including filled PE, copolymers,
blocka and graft polymers and composites . This section includes:
density, molecular weight and molecular weight distribution, crystallinity ,
thermal properties, mechanical properties, electrical properties, optical
properties, surface properties, hardness and scratch resistance, abrasion
resistance, friction, acoustic properties, degradation, biological behaviour,
biocompatibility, wear, molecular properties, performance in service ,
permeability, and cross linking.
"The use of boron free glass fibers has been a long acknowledged means of
preventing brittle fracture if an insulator's housing has been breached.

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Insulator manufacturers
like MacLean Power Systems can now take full advantage of boron free glass
fibers and also have wicking performance comparable to standard E-glass.

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The Practical Guide to Polyethylene is an indispensable resource for
everyone working with this material

The sections cover:

1 Introduction
Provides a general introduction to the subject and gives information on
price, production and market share.

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DUBLIN, Ireland, Research and Markets
(http://www.
The properties of SE 8400 LS single-end Type 30 roving offers not only the
required exceptionally high electrical resistance from low seed production but
also:

* higher corrosion and temperature resistance of Advantex over
conventional E-glass, reducing brittle fracture failure
* quicker processing than alternatives owing to fast wet-out in polyester,
vinyl ester and epoxy resins
* low migration for improved wet-out and glass to resin bonding
* improved flashover resistance in highly polluted areas
* high mechanical strength (weight ratio)
* greater design flexibility and overall system costs reduction

"While the industry has been working with non-ceramic insulators for
several years, developing and ensuring the consistent manufacture of a non-
corrosive, boron-free glass with seed counts well below . "Avoiding moisture ingress
has been and will continue to be the first line of defense in preventing
brittle fracture. Owens Corning is exhibiting in
Hall 1 Booth M42/N55.

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It describes the
basic types of polyethylene including virgin + filled polyethylene,
copolymers, block and graft polymers and composites, and reviews the types of
additives used in polyethylene.
After extensive beta testing, customers agree.com .

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This Practical Guide describes the processing
issues and conditions for the wide range of techniques used for polyethylene,
and it also considers post-processing and assembly issues.

Owens Corning Introduces New SE 8400 Low Seed Single-End Continuous Roving for High-Voltage Applications

Owens Corning SE 8400 LS roving is available in 113 yield (4400 TEX), 103
yield (4800 TEX ), and 52 yield (9600 TEX).

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7 Considerations of Product Design and Development
Covers product design and development, including: materials selection,
processing techniques, film blowing thermoforming, blow moulding, rotational
moulding compression moulding and injection moulding.6 billion in
2004.owenscorning.

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com/reports/c14677

Laura Wood
Senior Manager
Research and Markets
press@researchandmarkets.

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4 Additives
Lists information about the types of additives used with PE including:
antioxidants, inhibitors, stabilisers, masterbatches , antistatic agents,
EMI/radiofrequency shielding, antifogging agents, biocides, blowing agents,
biosensitisers , coupling agents, crosslinking agents, flame retardants,
fillers/reinforcements/slip and antiblocking agents, metals deactivators,
nucleating agents, and pigments and colorants.

6 Processing of Polyethylene Describes processing of PE including,
injection moulding, extrusion, blow and stretched moulding, compression
moulding, sintering and coating, thermoforming/vacuum forming, rotational
moulding , transfer moulding, casting, and recycling and recyclates. Additional information is available on Owens Corning's Web site at
http://www.

Finished rubber products are found in the subcategory 'Manufactured Product' and its linked categories.

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It discusses the advantages and
disadvantages of working with polyethylene, offering practical comment on the
available types of polyethylene, properties and in -service performance, and
processing. Advantex(R) Type30(R) Roving Provides Non-Corrosive, Dielectric Properties
for Pultruded High-Voltage Electrical Transmission + Distribution Applications;
Prevents Brittle Fracture

PARIS, At the JEC Composites Show, Owens Corning
today introduced SE 8400 LS, a new single-end Type 30(R) roving to meet the
demanding electrical requirements for such pultruded FRP applications as
medium- and high-voltage transmission and distribution (T+D) long-rod
insulators. SE 8400 LS combines the anti-corrosion, electrical, and
mechanical benefits of boron free Advantex(R) E-glass manufactured using
state-of-the-art glass melting technology and advanced low-seed filament
technologies, ensuring seed levels well below .
Owens Corning is a world leader in building materials systems and
composite systems.

,

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It offers guidance
on product design and development issues, including materials selection.

(R) Owens Corning and Advantex are registered trademarks of Owens Corning.

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com/cgi-bin/prnh/20040820 /RESEARCH )
Shampoo bottles, children's toys, and even bullet-proof vests.
Design of a polymeric product for a certain application is a complex task,
and this is particularly true for polyethylene with its variety of forms and
available processing methods.

5 Rheological Behaviour
Covers rheological behaviour including molar mass effects, steady flow
properties , melt flow rates/index, viscosity/shear rate, dynamic rheological
properties, chain structure effects and multiphase systems/inhomogeneous
products.
However, earlier generations of boron free fibers had seed count levels that
were too high and wouldn't consistently pass qualification tests mandated by
insulator standards," continued Schmiedeknecht.

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3 Properties
Gives the low down on the properties of PE.

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8 Post-Processing and Assembly
Covers post processing and assembly.
"Owens Corning has solved that problem with their Advantex corrosion
resistant E -glass fiber that is low in seed count.

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For more information visit
http://www.

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com/reports /c14677) has announced the addition
of Practical Guide to Polyethylene to their offering. This
Practical Guide provides information about every aspect of polyethylene
production and use in a reader-friendly form.
The Practical Guide begins with general background to the polyethylene
family, with price, production and market share information.com
Fax: +353 1 4100 980

5 seeds/gram .
The JEC Composites Show (5-7 April, 2005) is known as the global venue for
the introduction of new technologies in composites and is held annually at the
Expo Porte de Versailles, Paris, France .

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5 seeds per grams has
been the 'tipping point' level this marketplace needs to transform to a new
technology -- and SE 8400 truly delivers that solution," said Wisdom Dzotsi,
Owens Corning Global Product Manager, T30 Direct Roving.
MacLean Power Systems can now offer the utility engineer that extra margin of
safety at a relatively low incremental cost," Schmiedeknecht concluded.

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Minimizing
microscopic bubble voids or "seeds" in the glass avoids the formation of
hollow filaments, which increase conductance, offering the path of least
resistance to the electrical energy, and causing system failure. The 52 yield requires fewer ends
of roving to produce a part of equal glass content , a significant advantage
for pultrusion manufacturers with building or creel size restrictions, who
wish to produce larger parts. Founded in 1938, the company had sales of $5.

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