Modified (co)polymer, method for preparing thereof and use of the same
AssigneePublic Joint Stock Company "Sibur Holding"
InventorsSvetlana Igorevna Gustyakova, Egor Evgenievich Popovtsev
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Abstract
The invention relates to the field of modified diene-containing (co)polymers, in particular, to modified butadiene-styrene copolymers that can be used as flame retardants for polymer compositions based on expandable polystyrene. In particular, the invention relates to a modified diene-containing (co)polymer, a method for preparing thereof and the use of the same as a flame retardant for expandable polystyrene. The modified diene-containing (co)polymer according to the invention is characterized by a high heat resistance, in particular, a 5% weight loss temperature of at least 180° C., a molecular weight of at least 1500 g/mol, and a halogen content of at least 35 wt. % based on the total weight of the (co)polymer.
Claims58
A modified diene-containing (co)polymer comprising in its structure halogen atoms, at least one epoxy group, and at least one hydroxyl group, having a 5% weight loss temperature of at least 180° C., a weight-average molecular weight of at least 1500 g/mol, a halogen content of at least 35 wt. % based on the total weight of the (co)polymer,
- wherein the halogen atoms, the at least one epoxy group, and the at least one hydroxyl group are bonded to a straight-chain hydrocarbon portion of the (co)polymer, derived from a diene.
Dependencies are inferred from the claim text.