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:
Nov. 18, 2014
Filed:
Jan. 28, 2011
Sahar Al-malaika, Sulton Coldfield, GB;
Cezary Lewucha, Mikstat, PL;
Sahar Al-Malaika, Sulton Coldfield, GB;
Cezary Lewucha, Mikstat, PL;
Aston University, Birmingham, GB;
Abstract
The present invention is concerned with the process for preparing a cross-linked stabilized polymer composition using at least one graftable polymer stabilizer, and the subsequent use of that composition for forming pipes, for example PEX pipes. The graftable stabilizer becomes anchored to the polymer such that stabilizer activity is retained in the cross-linked product. Cross-linking can be achieved by conventional processes such as PEXa, PEXb and PEXc. Embodiments demonstrate excellent levels of antioxidant retention (as measured by oxidative induction retention after exhaustive solvent extraction) and the cross-linked product are suitable for portable water applications, including hot water applications.