Great Lakes Chemical Corporation

Jin-liang Wang

Nicolai A Favstritsky

Richard S Rose

David J Honkomp

David E May

Flame retardant latex compositions are disclosed which include natural or synthetic latex grafted with ring-halogenated, ethylenically unsaturated aromatic monomers. The graft latex is used alone or in combination with non-grafted natural or synthetic latex. The compositions are useful as coatings for a wide variety of applications, including fabric backcoatings, carpetings, paints, adhesives, sealants, caulks, non-woven binders and so on.

Flame retardant brominated styrene graft latex compositions

Improved flame retardant polymer latices are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment, the latices include ring-brominated aromatic monomer units and alkyl acrylate and/or alkyl methacrylate monomer units. In a second embodiment, the latices include these first two types of monomer units and further include third monomer units from unsaturated esters of saturated carboxylic acids, halogen-free aromatic monomers or unsaturated carboxylic or dicarboxylic acid monomers. In a third embodiment, the latices include four monomer units, namely ring-brominated aromatic monomer units, alkyl acrylate/methacrylate monomer units, halogen-free aromatic monomer units and unsaturated carboxylic or dicarboxylic acid monomer units. In one aspect, the halogenated aromatic monomers are present in an amount to provide from 7 to 20 weight percent bromine in the final latex composition. In another aspect, the halogenated aromatic monomers include polybrominated monomers, particularly to provide monomers having an average of at least about 1.5 bromines per monomer unit. The latex polymers have glass transition temperature in the -30.degree. to 30.degree. C. range for coating, paint adhesive, sealant and non-woven binder applications.

Flame retardant brominated styrene-based latices

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.

Flame retardant brominated styrene graft latex coatings

Improved flame retardant latex coatings are disclosed which comprise copolymers of ring-halogenated aromatic monomer units and alkyl acrylate/methacrylate monomer units, and which may additionally include at least one other monomer. In a first embodiment, the coatings include ring-brominated aromatic monomer units and alkyl acrylate and/or alkyl methacrylate monomer units. In a second embodiment, the coatings include these first two types of monomer units and further include third monomer units from unsaturated esters of saturated carboxylic acids, halogen-free aromatic monomers or unsaturated carboxylic or dicarboxylic acid monomers. In a third embodiment, the coatings include four monomer units, namely ring-brominated aromatic monomer units, alkyl acrylate/methacrylate monomer units, halogen-free aromatic monomer units and unsaturated carboxylic or dicarboxylic acid monomer units. In one aspect, the halogenated aromatic monomers are present in an amount to provide from 7 to 20 weight percent bromine in the final latex coating. In another aspect, the halogenated aromatic monomers include polybrominated monomers, particularly to provide monomers having an average of at least about 1.5 bromines per monomer unit. The coating polymers have glass transition temperatures in the -30.degree. C. to 30.degree. C. range and are useful, for example, for coating, paint, adhesive, sealant and non-woven binder applications.

Flame retardant brominated styrene-based coatings

Halogenated styrene-based coatings having surprisingly good physical properties in combination with flame retardancy are prepared from copolymers of ring-halogenated, ethylenically unsaturated aromatic monomers and aliphatic conjugated dienes having from 4 to 10 carbon atoms, and from terpolymers of ring-halogenated, ethylenically unsaturated aromatic monomers, halogen-free aromatic monomers, and aliphatic conjugated dienes having from 4 to 10 carbon atoms.

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Lafayette, IN, United States of America

Jin-liang Wang