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:
Jan. 19, 1982
Filed:
Oct. 30, 1980
Applicant:
Inventors:
Ram S Raghava, Ann Arbor, MI (US);
Calvin Richardson, Cincinnati, OH (US);
Assignee:
Formica Corporation, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525 58 ; 260 173 ; 428511 ;
Abstract
A process for preparing a fully hydrolyzed polyvinyl alcohol modified melamine-formaldehyde resin useful in decorative laminates is disclosed. The process comprises reacting melamine, formaldehyde, and fully hydrolyzed polyvinyl alcohol at 80.degree.-90.degree. C. until the reaction product has a water tolerance of about 300% to 1000% in 5.degree. C. water. The mole ratio of melamine to formaldehyde is from about 1:1.5 to about 1:1.8, respectively.