High heat acrylics
AssigneeICI Acrylics, Inc.
InventorJyi-Sheng J. Shen
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Abstract
Miscible polymer blends of high heat resistant acrylate-maleimide polymers containing from 1 to 99% or more by weight of the maleimided polymer with conventional poly (methyl methacrylate) polymer, the blends having higher glass transition temperatures than poly (methyl methacrylate) but substantially the same optical and mechanical properties as poly (methyl methacrylate) and compatible blends of high heat resistant acrylate-maleimide polymers, conventional acrylic impact modifier, and, optionally, conventional poly (methyl methacrylate).
Claims8
A polymer blend comprising about 1 to 99% by weight of an acrylate-maleimide polymer and up to 99% by weight of poly (methyl methacrylate) polymer, whereby
- the blend has optical properties substantially equal to the optical properties of conventional poly (methyl methacrylate);
- and
- is miscible.
A polymer blend comprising about 1% to 90% by weight of an acrylate-maleimide polymer, up to about 99% of methyl methacrylate/acrylate/styrene acrylic impact modifier and up to 99% by weight of poly (methyl methacrylate) polymer, whereby
- the blend has higher impact resistance than the impact resistance of conventional poly (methyl methacrylate);
- and
- is compatible.
Dependencies are inferred from the claim text.