Invention Grant
- Patent Title: Process for preparing a (meth)acrylate additive, a method of improving the sag resistance of a polyolefin and a sag resistant polyolefin
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Application No.: US16888991Application Date: 2020-06-01
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Publication No.: US11214630B2Publication Date: 2022-01-04
- Inventor: Carlos A. Cruz , Morris C. Wills
- Applicant: Rohm and Haas Company
- Applicant Address: US PA Philadelphia
- Assignee: Rohm and Haas Company
- Current Assignee: Rohm and Haas Company
- Current Assignee Address: US PA Philadelphia
- Main IPC: C08F2/20
- IPC: C08F2/20 ; C08F220/18 ; C08F265/04 ; C08L23/00 ; C08L23/04 ; C08F4/00 ; C08F10/02 ; C08L51/00

Abstract:
A process for preparing a (meth)acrylate comprising preparing an aqueous phase by combining water, one or more stabilizing agents, and one or more surfactants; preparing an oil phase by combining one or more free radical initiators, one or more monomers capable of undergoing radical polymerization, one or more crosslinking and/or graft-linking monomers, and stearyl methacrylate and/or lauryl methacrylate, wherein the free radical initiator is capable of partitioning preferentially into the oil phase; combining the aqueous and oil phases and mixing to form a suspension having oil droplets ranging in size from 1 to 10 microns; raising the temperature of the suspension to effect an initial polymerization forming a core polymer is provided.
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