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. 06, 1999
Filed:
Jul. 24, 1998
Applicant:
Inventor:
Nicholas M Irving, Mixco, GT;
Assignee:
Rio Oeste, S.A., Guatemala City, GT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08G / ;
U.S. Cl.
CPC ...
525480 ; 528129 ; 528153 ; 528155 ; 525480 ; 525508 ; 524 81 ; 524424 ; 524425 ; 524426 ; 524442 ; 524451 ; 524706 ; 524742 ; 524773 ; 428482 ;
Abstract
Disclosed are novel crosslinked polymers derived from methylol phenols and maleic acid species, and methods of synthesizing these macromolecules. Polyesters and chromandicarboxylic groups are the dominant linkages in the structure of general formula: ##STR1## R is H or a spacing group between aromatics, R.sub.1 is an aldehyde substituent, R.sub.2 a spacing group belonging to multihidric alcohols, a maleyl grouping, and n a whole number either 0 or 1.