公开(公告)号：US20220220274A1

公开(公告)日：2022-07-14

申请号：US17656899

申请日：2022-03-29

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Ove NORDIN ,  Magnus JONSSON

IPC分类号： C08J9/20 ,  C08J9/00 ,  C08J9/14 ,  C08J9/228

摘要： The present invention relates to thermally expandable microspheres at least partially prepared from bio-based monomers and to a process of their manufacture. The microspheres comprise a thermoplastic polymer shell encapsulating a blowing agent, wherein the thermoplastic polymer shell comprises a polymer being a homo- or copolymer of a lactone according to formula (1): wherein each of R1, R2, R3, R4, separately from one another, is selected from the group consisting of H and an alkyl group preferably with 1-4 carbon atoms. The invention further provides expanded microspheres, which can be used in a variety of applications.

公开(公告)号：US20200216631A1

公开(公告)日：2020-07-09

申请号：US16644448

申请日：2018-09-04

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Ove NORDIN ,  Magnus JONSSON

IPC分类号： C08J9/20 ,  C08J9/228 ,  C08J9/14 ,  C08J9/00

摘要： The present invention relates to thermally expandable microspheres at least partially prepared from bio-based monomers and to a process of their manufacture. The microspheres comprise a thermoplastic polymer shell encapsulating a blowing agent, wherein the thermoplastic polymer shell comprises a polymer being a homo- or copolymer of a lactone according to formula (1): wherein each of R1, R2, R3, R4, separately from one another, is selected from the group consisting of H and an alkyl group preferably with 1-4 carbon atoms. The invention further provides expanded microspheres, which can be used in a variety of applications.

公开(公告)号：US20200347197A1

公开(公告)日：2020-11-05

申请号：US16758637

申请日：2018-11-20

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Ove NORDIN ,  Anna EKMARKER ,  Evelina WALTERSSON

IPC分类号： C08J9/232 ,  C08J9/20 ,  C08J9/00 ,  C08J9/14

摘要： The present invention relates to thermally expandable microspheres at least partially prepared from bio-based monomers and to a process of their manufacture. The microspheres comprise a thermoplastic polymer shell encapsulating a blowing agent, wherein the thermoplastic polymer shell comprises a copolymer of an itaconate dialkylester and at least one aliphatic or aromatic mono-ethylenically unsaturated comonomer, wherein the itaconate dialkylester is according to formula (1): wherein each of R1 and R2, separately from one another, is an alkyl group preferably with 1-4 carbon atoms, and wherein the copolymer contains 0-50 wt. % of vinyl aromatic comonomers, based on the total weight of the comonomers. The invention further provides expanded microspheres, which can be used in a variety of applications.