Invention Grant
- Patent Title: Processing aid for foam molding, a vinyl chloride resin-based foam molding composition comprising the same and a foam molded product
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Application No.: US15753555Application Date: 2016-08-31
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Publication No.: US11584818B2Publication Date: 2023-02-21
- Inventor: Michael T. Petr , Paul R. Van Rheenen
- Applicant: Rohm and Haas Company
- Applicant Address: US PA Philadephia
- Assignee: Rohm and Haas Company
- Current Assignee: Rohm and Haas Company
- Current Assignee Address: US PA Philadephia
- International Application: PCT/US2016/049721 WO 20160831
- International Announcement: WO2017/040679 WO 20170309
- Main IPC: C08J9/00
- IPC: C08J9/00 ; C08F220/18 ; C08L27/06 ; C08F220/14 ; C08L33/12
Abstract:
A processing aid for foam molding comprising a copolymer obtained by the polymerization of 30 to 90% by weight of methyl methacrylate, 10 to 70% by weight total of one or more monomers selected from the group consisting of butyl methacrylate (BMA), pentyl methacrylate (PMA) and hexyl methacrylate (HMA), and 0 to 20% by weight of other copolymerizable monomers, the copolymer having a reduced viscosity measured according to ASTM D2857 at 1 mg/mL in chloroform at 25° C. of greater than 8 dL/g is provided.
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