Resumes
Resumes
George Palethorpe Phones & Addresses
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9 Minuteman Ln, Exeter, NH 03833 (603) 778-9050
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9 Minuteman Ln #49, Exeter, NH 03833 (603) 778-9050
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Decatur, AL
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Cockeysville, MD
Publications
Us Patents
Method For Stabilizing Brightened Modacrylic Fibers
View pageUS Patent:
41264126, Nov 21, 1978
Filed:
Sep 6, 1977
Appl. No.:
5/830738
Inventors:
James C. Masson - Decatur AL
George Palethorpe - Durham NC
George Palethorpe - Durham NC
Assignee:
Monsanto Company - Decatur AL
International Classification:
D06P 138
US Classification:
8 1W
Abstract:
The method of preventing color-degrading interactions between certain optical brighteners and filaments made from a modacrylic polymer containing as a copolymer a halogenated ethylenically unsaturated monomer, the optical brightener preferably having the formula: ##STR1## where X and Y are basic groups selected from the group consisting of --NH. sub. 2, --H(CH. sub. 3). sub. 2, and --N. sup. + (CH. sub. 3). sub. 3 Z, where Z is selected from the group consisting of chloride, sulphate and bromide anions, n is 0 to 3, and R is an alkyl group containing 1 to 4 carbon atoms, wherein an aqueous liquid is applied to the filaments, the liquid containing 0. 01 to 0. 5 weight percent of a compound having the formula: ##STR2## wherein R is a member selected from the group consisting of an alkyl radical having 1 to 11 carbon atoms, a phenyl radical and an alkyl phenyl radical containing no more than eight carbon atoms.