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:
Oct. 26, 1999
Filed:
Jul. 24, 1998
Applicant:
Inventors:
Jawed Asrar, Chesterfield, MO (US);
Jean R Pierre, St-Denis, BE;
Assignee:
Monsanto Company, St. Louis, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528176 ; 528193 ;
Abstract
A nucleant system for polyhydroxyalkanoates and other thermoplastic polyesters comprises a class of organophosphorous compounds having at least two phosphonic acid moieties. The compounds can be used to effectively increase polymer crystallization rates and result in desirable properties in polymer-derived articles of manufacture, particularly when used in combination with effective nucleating agent solvents, organic metal salts, inorganic metal oxides, metal hydroxides or metal carbonates, and/or weak organic bases.