Flame retardant brominated styrene graft latex coatings
AssigneeGreat Lakes Chemical Corporation
InventorsJin-liang Wang, Nicolai A. Favstritsky, Richard S. Rose
Life of this patent
Estimating the term…
Abstract
Flame retardant latex coatings are disclosed which include natural or synthetic latex grafted with ring-halogenated, ethylenically unsaturated aromatic monomers. The grafted latex is used alone or in combination with non-grafted natural or synthetic latex. The coatings are useful for a wide variety of applications, including fabric backcoatings, carpetings, paints, adhesives, sealants, caulks, non-woven binders and so on.
Claims34
In a composite material comprising a substrate and a latex coating adhered thereto, the improvement comprising the coating including:
- a flame retardant, graft latex copolymer having the formula:
- ##STR6## wherein n is >1, L is a natural or synthetic latex, and each S is a grafted-on side chain comprising a brominated monomeric unit of the formula:
- ##STR7## wherein x=1 to 4, R.sub.1 is H or CH.sub.3, and R.sub.2 is H or a C.sub.1-4 lower alkyl group, said graft latex copolymer including at least about 1% bromine by weight of the graft latex copolymer.
A composite material comprising:
- a. a substrate adapted to be coated;
- and
- b. a coating adhered to said substrate, said coating comprising a flame retardant, graft latex copolymer having the formula:
- ##STR8## wherein n is >1, L is a natural or synthetic latex, and each S is a grafted-on side chain comprising a brominated monomeric unit of the formula:
- ##STR9## wherein x=1 to 4, R.sub.1 is H or CH.sub.3, and R.sub.2 is H or a C.sub.1-4 lower alkyl group, said graft latex copolymer including at least about 1% bromine by weight of the graft latex copolymer.
Dependencies are inferred from the claim text.