公开(公告)号：US4983708A

公开(公告)日：1991-01-08

申请号：US350782

申请日：1989-05-12

申请人： Nan L. Yang ,  Andrew Auerbach ,  Rose. Pesce ,  Jerry A. Broussard ,  James L. Paul

发明人： Nan L. Yang ,  Andrew Auerbach ,  Rose. Pesce ,  Jerry A. Broussard ,  James L. Paul

IPC分类号： C08G65/16 ,  C08G2/18 ,  C08G2/22

CPC分类号： C08G2/22

摘要： Cationic copolymerization of trioxane with glycidyl ester derivatives, preferably glycidyl acrylate derivatives, produces thermally stable, usually cross-linked, acetal copolymer. The resulting acetal copolymer will exhibit side chain ester functionality, and particularly side chain vinyl functionality when glycidyl acrylate derivatives are employed, so as to permit its futher reaction with other chemical moieties to achieve an acetal copolymer of modified chemical and/or physical properties.

公开(公告)号：US4906728A

公开(公告)日：1990-03-06

申请号：US181237

申请日：1988-04-13

申请人： Nan-Loh Yang ,  Andrew Auerbach ,  James L. Paul ,  Rose Pesce ,  Shian S. Wang

发明人： Nan-Loh Yang ,  Andrew Auerbach ,  James L. Paul ,  Rose Pesce ,  Shian S. Wang

IPC分类号： C08G65/16 ,  C07D321/06 ,  C08G4/00 ,  G03F7/039

CPC分类号： G03F7/039 ,  C07D321/06 ,  C08G4/00

摘要： The invention concerns a method for producing an acetal copolymer containing backbone bromo-functional groups comprising copolymerizing trioxane with 5,6,-dibromo-1,3-dioxepene. The invention also concerns methods of modifying acetal copolymers containing bromo-functional groups and the copolymers produced by the methods of the invention.

公开(公告)号：US4900783A

公开(公告)日：1990-02-13

申请号：US181047

申请日：1988-04-13

申请人： Nan-Loh Yang ,  Andrew Auerbach ,  James L. Paul ,  Rose Pesce ,  Shian S. Wang

发明人： Nan-Loh Yang ,  Andrew Auerbach ,  James L. Paul ,  Rose Pesce ,  Shian S. Wang

IPC分类号： C08G65/16 ,  C07D321/04 ,  C08F283/06 ,  C08G2/10 ,  C08G2/18 ,  C08G4/00 ,  C08G65/06 ,  C08G65/26

CPC分类号： C08G4/00 ,  C07D321/04 ,  C08G2/18

摘要： Acetal copolymers of trioxane and 1,3-dioxep-5-ene having a high degree of crystallinity and specific mole percent incorporations of 1,3-dioxep-5-ene are synthesized.The invention also provides a process for producing highly crystalline acetal copolymers by copolymerizing triozane and 1,3-dioxep-5-ene and precipitating the copolymer product from solution.The copolymers show much improved stability against halogen degradation.

公开(公告)号：US5071952A

公开(公告)日：1991-12-10

申请号：US181236

申请日：1988-04-13

申请人： Nan-Loh Yang ,  Andrew Auerbach ,  James L. Paul ,  Rose Pesce

发明人： Nan-Loh Yang ,  Andrew Auerbach ,  James L. Paul ,  Rose Pesce

IPC分类号： C07D321/06 ,  C07D498/04 ,  C08G2/24 ,  C08G2/26 ,  C08G4/00 ,  C08G65/22

CPC分类号： C07D321/06 ,  C08G4/00

摘要： Iodoisocyano, iodourea and oxazole modified 1,3 dioxep-5-ene ring monomers are synthesized and used in copolymerization reactions with trioxane to produce acetal copolymers with backbone functional groups. The invention also concerns processes for the production of acetal copolymers containing iodourea and oxazole functional groups from acetal copolymers with backbone double bonds.

公开(公告)号：US4975519A

公开(公告)日：1990-12-04

申请号：US350781

申请日：1989-05-12

申请人： Nan L. Yang ,  Andrew Auerbach ,  Rose Pesce ,  Jerry A. Broussard ,  James L. Paul

发明人： Nan L. Yang ,  Andrew Auerbach ,  Rose Pesce ,  Jerry A. Broussard ,  James L. Paul

IPC分类号： C08G2/20 ,  C08G2/18 ,  C08G4/00

CPC分类号： C08G2/18 ,  C08G4/00

摘要： Cationic polymerization of trioxane and a mixture of ester derivatives of .alpha.,.alpha.- and .alpha.,.beta.-isomers of glycerol formal yields acetal terpolymers having pendant functional groups (i.e., ester groups, or hydroxyl groups obtained by hydrolyzing ester groups, pendent from the polymer's backbone). The glycerol formal monomers employed in this invention may include functional groups selected from ester moieties which are protected from, and thus survive, the polymerization process with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block polymers and/or to chemically bind modifiers to the acetal terpolymer backbone, for example.