Flame retardant brominated styrene-based latices

Details Flame retardant brominated styrene-based latices Flame retardant brominated styrene-based latices

1994-05-16

1995-08-01

Sweet, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524833, 524834, 524835, 526293, C08L 2710

Patent

active

054380960

ABSTRACT:
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.

REFERENCES:
patent: 3072588 (1963-01-01), Vitkuske et al.
patent: 3766189 (1973-10-01), Blackford, Jr.
patent: 3877974 (1975-04-01), Mischutin

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