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:
Jun. 30, 1992
Filed:
Mar. 01, 1991
Applicant:
Inventor:
Geoffrey Hand, Halesowen, GB;
Assignee:
Albright & Wilson Limited, Oldbury, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524118 ; 524117 ; 524119 ; 524131 ; 2524002 ; 25240022 ; 252609 ;
Abstract
A flame retardant composition comprises at least one cyclic phosphonate ester and at least one phosphono amide. The ester and the amide are present in a ratio by weight of 0.1 to 2:1. A co-curing agent (e.g. urea, ethylene urea or an amino-triazine) may be included. The composition may also contain a non-rewetting agent and/or a softening or conditioning agent. The composition is used for the flame retardant treatment of a fabric by first impregnating the fabric with an aqueous solution of the composition and then heating the impregnated fabric at at least 100.degree. C. and under acid pH conditions.