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:
Aug. 21, 2018
Filed:
Dec. 19, 2011
Applicants:
John Goulbourn, Liverpool, GB;
Andrew Stuart Overend, Bolton, GB;
Christine Leeming, Manchester, GB;
Inventors:
John Goulbourn, Liverpool, GB;
Andrew Stuart Overend, Bolton, GB;
Christine Leeming, Manchester, GB;
Assignee:
COLORMATRIX HOLDINGS, INC., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/215 (2006.01); C08K 5/092 (2006.01); C08J 3/20 (2006.01); C08J 3/205 (2006.01);
U.S. Cl.
CPC ...
C08J 3/203 (2013.01); C08J 3/2053 (2013.01); C08J 2367/00 (2013.01);
Abstract
A method of introducing an additive into a polymeric material comprises using a liquid formulation comprising an additive, for example a colorant, and a vehicle comprising an aliphatic or aromatic tri- or di-carboxylic acid covalently linked by ester bonds to two or more chains. The method involves contacting the liquid formulation with the polymeric material in a melt processing apparatus. The cavity transfer mixer may be used in the process. A fiber is suitably subsequently produced.