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US 2002/0165296 A1Published application
Non-gelling high polymer compositions and thermoplastic blends thereof
AssigneeRohm and Haas Company
InventorsCarlos Alfonso Cruz, Eugene Patrick Dougherty
Life of this patent
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Abstract
Disclosed are compositions and processes for preparing polymeric materials having polymerizable units derived from at least one C8 to C30 alkyl (meth)acrylate monomer, and at least one chain branching unit. The presence of the chain branching unit suprisingly results in the polymeric composition having non-gelled polymer chains. The polymeric compositions are useful as additives for improving the melt strength of thermoplastic resins.
Claims10
A polymeric composition, comprising:
- a) polymerizable units derived from at least one C8 to C30 alkyl (meth)acrylate monomer, and
- b) at least one chain branching unit, said chain branching unit present in an amount not greater than 0.10 weight percent based on total weight of the C8 to C30 alkyl (meth)acrylate monomer,
- wherein said chain branching unit results in the polymeric composition having non-gelled polymer chains, and wherein said non-gelled polymer chains have a weight average molecular weight of at least 100,000 g/mol.
A polymer blend composition, comprising at least the following:
- a) at least one thermoplastic polymer resin, and
- b) at least one polymeric composition, said polymeric composition comprising:
- i) polymerizable units derived from at least one C8 to C30 alkyl (meth)acrylate monomer, and
- ii) at least one chain branching unit, said chain branching unit present in an amount not greater than 0.10 weight percent based on total weight of the C8 to C30 alkyl (meth)acrylate monomer,
- wherein said chain branching unit results in the polymeric composition having non-gelled polymer chains, and wherein said non-gelled polymer chains have a weight average molecular weight of at least 100,000 g/mol.
2 more elements
Dependencies are inferred from the claim text.