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. 06, 2019
Filed:
Jan. 10, 2014
Applicant:
Norner Ip As, Stathelle, NO;
Inventors:
Carlos Barreto Soler, Porsgrunn, NO;
Rodney W. Rychwalski, Bollebygd, SE;
Siw Bodil Fredriksen, Skien, NO;
Assignee:
NORNER IP AS, Stathelle, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/42 (2006.01); C08J 3/24 (2006.01); C08K 3/04 (2006.01); C08K 3/26 (2006.01); C08K 3/34 (2006.01); C08K 9/04 (2006.01);
U.S. Cl.
CPC ...
C08J 3/24 (2013.01); C08G 64/42 (2013.01); C08K 3/04 (2013.01); C08K 3/041 (2017.05); C08K 3/042 (2017.05); C08K 3/26 (2013.01); C08K 3/346 (2013.01); C08K 9/04 (2013.01); C08K 2003/265 (2013.01); C08K 2201/011 (2013.01);
Abstract
A process for the manufacture of a modified poly(alkylene carbonate) comprising compounding i) at least one poly(alkylene carbonate) and at least one modifying agent having at least three carboxylic acid groups, or ii) at least one carboxylic acid group and at least one anhydride group, or iii) at least two anhydride groups, at a temperature of 120 to 240° C.