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Polymers in Sport and Leisure

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References <strong>and</strong> Abstracts<br />

coupled with high rigidity of these materials achieves a<br />

reduction <strong>in</strong> motor boat fuel consumption. S<strong>in</strong>ce aramid<br />

fibres (Twaron, manufactured by Akzo Nobel) are now<br />

f<strong>in</strong>d<strong>in</strong>g wide application, certa<strong>in</strong> types of woven <strong>and</strong> nonwoven<br />

fabric can be st<strong>and</strong>ardised, which benefits the cost<br />

structure. Fibre properties, such as light weight, high<br />

tenacity, rigidity <strong>and</strong> impact strength, make these<br />

re<strong>in</strong>forc<strong>in</strong>g materials suitable for boat construction.<br />

EUROPEAN COMMUNITY; EUROPEAN UNION;<br />

NETHERLANDS; WESTERN EUROPE<br />

Accession no.596179<br />

Item 323<br />

Plastics News(USA)<br />

8, No.12, 20th May 1996, p.4<br />

NAUTICRAFT LAUNCHES ROTOMOULDED<br />

BOAT PLAN<br />

Neaville L S<br />

Nauticraft Corp., of Michigan, is to <strong>in</strong>stall its first<br />

rotational mould<strong>in</strong>g mach<strong>in</strong>e to beg<strong>in</strong> convert<strong>in</strong>g a<br />

fibreglass pedal boat to rotomoulded polyethylene. The<br />

article supplies details of the company’s background, its<br />

current activities <strong>and</strong> products. The switch to rotomoulded<br />

PE was brought about because the fibreglass model was<br />

not commercially viable.<br />

NAUTICRAFT CORP.<br />

USA<br />

Accession no.596115<br />

Item 324<br />

Industria della Gomma<br />

39, No.4, April 1995, p.43-7<br />

Italian<br />

WHAT IF THE SEVEN LEAGUE BOOTS HAD<br />

HAD RUBBER SOLES?<br />

Applications of rubbers <strong>in</strong> footwear are exam<strong>in</strong>ed, with<br />

particular reference to PU elastomers. Developments by<br />

a number of Italian companies <strong>in</strong> polymers, compounds<br />

<strong>and</strong> process<strong>in</strong>g mach<strong>in</strong>ery for footwear manufacture are<br />

reviewed, <strong>and</strong> some statistics are presented for the Italian<br />

footwear <strong>in</strong>dustry.<br />

EUROPEAN COMMUNITY; EUROPEAN UNION; ITALY;<br />

WESTERN EUROPE<br />

Accession no.595281<br />

Item 325<br />

Revue Generale des Caoutchoucs et Plastiques<br />

No.740, April 1995, p.71-2<br />

French<br />

ETHER-AMIDE BLOCK COPOLYMERS ON<br />

THE STARTING BLOCKS<br />

Tron L; Chassa<strong>in</strong>g J<br />

Elf Atochem SA; Adidas AG<br />

Applications of Elf Atochem’s Pebax ether-amide block<br />

copolymer thermoplastic elastomers <strong>in</strong> soles for sports<br />

footwear are described. Properties which make these<br />

materials particularly suitable for such applications are<br />

exam<strong>in</strong>ed.<br />

EUROPEAN COMMUNITY; EUROPEAN UNION; FRANCE;<br />

GERMANY; WESTERN EUROPE<br />

Accession no.595263<br />

Item 326<br />

Utech ’92. Conference proceed<strong>in</strong>gs.<br />

Hague, 31st March-2nd April 1992, p.150-5. 43C6<br />

NEW POLYMERIC POLYESTERS AND THEIR<br />

APPLICATION IN MICROCELLULAR<br />

ELASTOMERS FOR SHOE SOLES<br />

Monso J M; Soler J; Blanch J; Escobar P; Rodriguez F<br />

L; Garcia J<br />

Hoocker SA<br />

(Cra<strong>in</strong> Communications Ltd.)<br />

Polyesters suited to the formulation of PU microcellular<br />

elastomers are described. The particle size of the<br />

dispersion exerts an important <strong>in</strong>fluence upon product<br />

stability, as well as its value as a re<strong>in</strong>forc<strong>in</strong>g agent for the<br />

f<strong>in</strong>ished plastic. Parameters <strong>in</strong>fluenc<strong>in</strong>g the synthesis of<br />

products are expla<strong>in</strong>ed, specifically the use of specific<br />

dispersants. The efficiency of three of them is compared<br />

by determ<strong>in</strong><strong>in</strong>g particle size; this study is made by<br />

Scann<strong>in</strong>g Electron Microscopy with a JEOL JSM 840<br />

apparatus, present<strong>in</strong>g a white polymeric polyester with<br />

small particle size (0.2 microns) as an optimised product.<br />

The modification of mechanical properties by us<strong>in</strong>g<br />

polymeric polyesters is studied <strong>in</strong> microcellular<br />

elastomers, <strong>and</strong> tests are made with a GUSBI mach<strong>in</strong>e<br />

P40/D2 <strong>in</strong> an elastomer of 400 Kg/m3 <strong>and</strong> with <strong>in</strong>creas<strong>in</strong>g<br />

quantities of polymeric up to 50%. The <strong>in</strong>crease <strong>in</strong><br />

hardness <strong>and</strong> the variations of tensile strength, elongation,<br />

tear strength <strong>and</strong> flexural properties relat<strong>in</strong>g to the<br />

percentage of polymeric are compared. The economy<br />

obta<strong>in</strong>ed by sav<strong>in</strong>gs of isocyanate requirements <strong>in</strong> systems<br />

us<strong>in</strong>g polymeric polyesters is quantified, select<strong>in</strong>g for this<br />

purpose: low density mid-soles <strong>and</strong> st<strong>and</strong>ard sport shoes<br />

of medium hardness.12 refs.<br />

EUROPEAN COMMUNITY; EUROPEAN UNION; SPAIN;<br />

WESTERN EUROPE<br />

Accession no.594649<br />

Item 327<br />

Injection Mold<strong>in</strong>g<br />

4, No.6, June 1996, p.44<br />

SKI GOGGLE FIT WITH RP TECHNOLOGY<br />

Maniscalco M<br />

The use of stereolithography techniques to solve design<br />

problems with a ski goggle, is described. Prototype<br />

Express collaborated with Smith <strong>Sport</strong> Optics, to avert a<br />

seem<strong>in</strong>g disaster when the goggle’s critical fit between<br />

the nose <strong>and</strong> cheek region left a gap. The use of rapid<br />

prototyp<strong>in</strong>g, enabled a sav<strong>in</strong>g of 125,000 US dollars <strong>in</strong><br />

tool rework costs, <strong>and</strong> 8-10 weeks <strong>in</strong> the project cycle.<br />

82 © Copyright 2001 Rapra Technology Limited

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