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:
Nov. 30, 1999
Filed:
Nov. 13, 1998
Applicant:
Inventors:
Herbert W Ulmer, Hoboken, NJ (US);
John A Katirgis, West Caldwell, NJ (US);
Timothy Gillece, Pompton Plains, NJ (US);
Assignee:
ISP Investments Inc., Wilmington, DE (US);
Primary Examiner:
Int. Cl.
CPC ...
A61R / ; A61R / ; A01J / ; A01J / ;
U.S. Cl.
CPC ...
514397 ; 424 7802 ; 424401 ;
Abstract
A process for making derivatized polymers of maleic anhydride containing maleamic acid and its corresponding cyclic imide repeat units, in alcohol solution, at a temperature of about 60-160.degree. C., during a reaction period of about 1-25 hours. The product is a polymer having a predetermined ratio of the above repeat units. The polymers are included in personal care poducts.