公开(公告)号：US20230167208A1

公开(公告)日：2023-06-01

申请号：US18070124

申请日：2022-11-28

申请人： Braskem S.A.

发明人： Jiahan Xie ,  Márcia Silva Lacerda Miranda ,  Cassandra Gallaschun ,  Marcio Andrade ,  Danniel Panza ,  Marcio Reboucas ,  Richard Caulkins ,  Alicia Brasselle ,  Jan Kalfus

IPC分类号： C08F110/10

CPC分类号： C08F110/10

摘要： A heterogeneous catalyst composition for preparing a highly-reactive polyisobutylene from isobutylene may include a Lewis acid, a support, an initiator, and optionally an electron donor. A method of polymerizing isobutylene to a highly-reactive polyisobutylene may include a heterogeneous catalyst composition including include a Lewis acid, a support, an initiator, and optionally an electron donor.

公开(公告)号：US20240166776A1

公开(公告)日：2024-05-23

申请号：US18517947

申请日：2023-11-22

申请人： Braskem S.A.

发明人： Richard Caulkins ,  Jiahan Xie ,  Alicia Brasselle ,  Richard Opfer ,  Dan Xie ,  Maria Giuliana Torraga Uchiyama ,  Marcio Henrique Dos Santos Andrade ,  João Capistrano Nobre De Abreu ,  Danniel Panza ,  Mauricio Silveira Cadore ,  Suzana Kupidlowski Boaventura ,  Jan Kalfus

IPC分类号： C08F10/10 ,  C08F4/12

CPC分类号： C08F10/10 ,  C08F4/12 ,  C08F2410/06 ,  C08F2500/02 ,  C08F2500/17

摘要： A method of forming a light-polyisobutylene may include polymerizing isobutene or an isobutene-containing monomer mixture in presence of a proton-form zeolite catalyst to form a light-polyisobutylene. A light-polyisobutylene may be formed by the method of polymerizing isobutene or an isobutene-containing monomer mixture in presence of a proton-form zeolite catalyst.