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. 04, 2005
Filed:
Jul. 24, 2003
William E. Slack, Moundsville, WV (US);
Rick L. Adkins, Hurricane, WV (US);
Hersel T. Kemp, New Martinsville, WV (US);
William E. Slack, Moundsville, WV (US);
Rick L. Adkins, Hurricane, WV (US);
Hersel T. Kemp, New Martinsville, WV (US);
Bayer MaterialScience LLC, Pittsburgh, PA (US);
Abstract
This invention relates to stable liquid modified diphenylmethane diisocyanates which comprise a secondary amine based biuret modified diphenylmethane diisocyanate having an NCO group content of about 12 to about 30% by weight. The present invention also relates to stable liquid biuret allophanate modified MDIs, to stable liquid prepolymers of biuret modified MDIs, to stable liquid prepolymers of biuret allophanate modified MDIs, and to processes for the preparation of these compositions.