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:
Jul. 03, 2001
Filed:
Apr. 17, 1998
Applicant:
Inventors:
Amanda Jane Dutton, Warrington, GB;
Robert Craig Wasson, Wirral, GB;
Ivan Lode André Maria Claeys, Zemst, BE;
Assignee:
Solvay Interox Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/308 ;
U.S. Cl.
CPC ...
C08G 6/308 ;
Abstract
Poly(lactones) are provided. The poly(lactones) are obtained by polymerization of a lactone with an initiator system comprising at least one polyfunctional initiator. The poly(lactones) have a shear viscosity at some temperature in the range of from 35 to 45° C. above the melting temperature of the poly(lactone) of at least 6 kPas at 0.1 s,shear rate and no greater than 3.5 kPas at 100 s,shear rate, and a shear viscosity activation energy of greater than 40 kJ/mol. Preferably, the poly(lactone) is poly(caprolactone).