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:
Feb. 13, 1990
Filed:
Aug. 08, 1988
Applicant:
Inventors:
Leon H Chance, New Orleans, LA (US);
Gary F Danna, New Orleans, LA (US);
Bethlehem K Andrews, New Orleans, LA (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C08B / ; C08B / ;
U.S. Cl.
CPC ...
81164 ; 536 95 ; 549476 ; 568603 ;
Abstract
The acetals, 2,3-dihydroxy-1,1,4,4-tetramethoxybutane, 3,4-dihydroxy-2,5-dimethoxytetrahydrofuran, and glyceraldehyde dimethylacetal, when applied to cotton fabric by conventional pad-dry-cure procedures using special combined acid catalysts, were found to crosslink cellulose hydroxy groups at a very rapid rate (e.g., 20 seconds at 160.degree. C.), thereby imparting improved wrinkle recovery in the range of that required for durable press finishing. Cotton fabrics treated with these acetals have the advantage of no formaldehyde release.