Imperial Chemical Industries Limited

Other

Leeds Lithium Power Limited

Paul L Carr

Ian MacMillan Ward

Hugh V S Hubbard

William F Tyldesley

John Stancliffe

The invention provides an apparatus and method for producing multilayer laminates of polymeric electrolyte material incorporating one of more electrode layers. The apparatus () comprises an extrusion apparatus () for extruding a polymeric material () and a pair of heated rollers () between which the material () and electrodes () are pressed in order to produce a continuous extrudate (). The method may also include producing a gellable mixture comprising a crystallisable polymer and an aprotic organic liquid, forming the mixture as an elongate tape and contacting the tape with an electrode material. A compression and heating step may be present.

Extruded battery components and manufacturing process

Anti-theft device

A spun polyester yarn containing ethylene terephthalate as the main or only recurring unit characterized by a percentage crystallinity (.beta..times.10.sup.2) of less than 20, a birefringence (.DELTA.n) of at least 50.times.10.sup.-3, a function A greater than 28 and a function B.gtoreq.16 where ##EQU1## and B=(A-100 .beta.) and wherein-IV is the intrinsic viscosity of the spun yarn, .DELTA.n is the birefringence of the spun yarn and (dpf) is the filament decitex of the spun yarn.

Polyester yarns produced by high speed melt-spinning processes

A yarn of a synthetic, fibre-forming, polymeric material comprising a plurality of filaments having a substantially rectangular cross-section and having a birefringence assymetry across the width of the filaments, each of the filaments being twisted about the longitudinal axis of the filament in such a manner that the overall lateral dimension of the twisted filament corresponds substantially with the length of the rectangular cross-section of the filament.

Filament yarn

Manufacture of polyamide yarns by a high speed draw spinning process in which the yarns are passed through defined fluid environments. Yarns are comparable in properties with conventional spin-lag-draw yarns.

Process for the manufacture of polyamide yarns

Manufacture of polyester yarns by a high speed draw spinning process in which the yarns are passed through defined fluid environments. Yarns are comparable in properties with conventional spin-lag-draw hot relax yarns.

Growing community of inventors

Harrogate, United Kingdom

Paul L Carr