The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 1996
Filed:
Feb. 06, 1995
Neil Tindale, Cleveland, GB;
Imperial Chemical Industries PLC, London, GB;
Abstract
Bottle preforms are made by injection moulding a thermoplastic polymer, preferably a polyethylene terephthalate polymer, which contains metal particles, preferably particles of antimony, which are sufficiently fine for them not to be visible to the eye and which intrinsically absorb radiation in the wavelength region 500 nm to 2000 nm. The metal particles are present in an amount such that the reheat time of the polymer is less than the reheat time of the polymer in the absence of the metal particles. The metal particles contained in the polymer are generated in situ by incorporating into the polymer fine particles of a reducible metal compound and a reducing agent capable of reducing the metal compound to the metal and then reacting the metal compound with the reducing agent so as to produce the metal particles. Bottles are made from the bottle preforms by reheating the bottle preforms and then blow moulding bottles from the reheated preforms.