USE OF A COMPOSITION FOR THE MANUFACTURE OF A FOAMED ARTICLE

    公开(公告)号:US20220267550A1

    公开(公告)日:2022-08-25

    申请号:US17631689

    申请日:2020-07-17

    Abstract: The present invention relates to the use of a composition comprising 60-98 wt. % of polypropylene, 2-40 wt. % of low density polyethylene, 0.1-10 wt. % of compatibiliser wherein the compatibiliser is a BAB or AB type of block copolymer comprising a polypropylene block A and a polyester block B, or wherein the compatibiliser is a graft copolymer of the type ABn having a polypropylene backbone A and polyester block(s) B grafted thereon, with n being at least 1, and the polyester block(s) B have an average M/F ratio from 8-32, wherein M is the number of backbone carbon atoms in the polyester not including carbonyl carbon atoms, and F is the number of ester groups in the polyester block(s), wherein the wt. % is based on the sum of the amount polypropylene, low density polyethylene and compatibiliser, for the manufacture of a foamed article.

    USE OF A COMPOSITION FOR THE MANUFACTURE OF A FOAMED ARTICLE

    公开(公告)号:US20220153977A1

    公开(公告)日:2022-05-19

    申请号:US17602812

    申请日:2020-03-31

    Abstract: The present invention relates to the use of a composition comprising from 60-98 wt. % of polypropylene, from 2-40 wt. % of aromatic polycarbonate and from 0.1-10 wt. % of compatibiliser for the manufacture of a foamed article, wherein the compatibiliser is a BAB or AB type of block copolymer comprising a polypropylene block A and a polyester or polycarbonate block B, or wherein the compatibiliser is a graft copolymer of the type ABn having a polypropylene backbone A and polyester or polycarbonate block(s) B grafted thereon, with n being at least 1, and wherein the polyester or polycarbonate blocks B have an average M/F ratio from 2-25, wherein M is the number of backbone carbon atoms in the polyester or polycarbonate not including carbonyl carbon atoms, and F is the number of ester or carbonate groups in the polyester or polycarbonate block, and wherein the wt. % is based on the sum of the amount polypropylene, polycarbonate and compatibiliser.

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