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. 01, 1996
Filed:
Aug. 31, 1994
Applicant:
Inventor:
Daniel B Pourreau, Downingtown, PA (US);
Assignee:
Arco Chemical Technology, L.P., Greenville, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; B05D / ;
U.S. Cl.
CPC ...
528373 ; 528374 ; 528381 ; 528387 ; 427340 ; 427341 ; 427343 ; 427352 ; 427353 ; 252364 ; 422901 ;
Abstract
A method for removing cured sulfur-containing polymer sealants from surfaces is disclosed. The method comprises applying to the surface a sealant remover comprising at least about 50 wt. % of a pyrrolidone, especially N-methyl-2-pyrrolidone, and allowing the cured sulfur-containing polymer and the remover to remain in contact until the cured sulfur-containing polymer is loosened and can be easily removed from the surface. The method of the invention enables fast, effective removal of the sulfur-containing polymer sealants commonly used in the aerospace, construction, and insulating-glass industries.