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:
Mar. 16, 1999
Filed:
Nov. 19, 1996
Ivan Claeys, Zemst, BE;
Claude Dehennau, Waterloo, BE;
Solvay (Societe Anonyme), Brussels, BE;
Abstract
A poly-.epsilon.-caprolactone film whose weight-average molecular mass is equal to at least 75,000 g/mol having a modulus in tension of at least 600 MPa in the transverse and longitudinal direction and a shrinkage not exceeding 1% in both directions below the poly-.epsilon.-caprolactone melting zone. The process for producing the poly-.epsilon.-caprolactone film comprises online extrusion of the poly-.epsilon.-caprolactone through a die having a temperature not exceeding 160.degree. C. immediately following its polymerization using aluminum trialkoxide as initiator. The films according to the invention are suitable for producing films for packaging, for the protection of produce or for diapers.