公开(公告)号：DD134533A5

公开(公告)日：1979-03-07

申请号：DD20370078

申请日：1978-02-14

Applicant: STAMICARBON

Inventor： SCHOEN LOEWHARDT A A ,  VAN ASPEREN PIETER J ,  BRULS WILHELMUS G M ,  DEBETS WILHELMUS A M

IPC: C08F8/00 ,  C08F8/20 ,  C08F8/22 ,  C08F110/02

Abstract: An improved process for chlorinating high density polyethylene "in bulk" is described, with a two-stage reaction, the first at temperatures below the crystalline melting point, and the second above that temperature, and using a polyethylene starting material having a critical combination of characteristics, as described.

公开(公告)号：CA1165940A

公开(公告)日：1984-04-17

申请号：CA373813

申请日：1981-03-25

Applicant: STAMICARBON

Inventor： GAYMANS REINOUD J ,  VAN ASPEREN PIETER J

IPC: C08L77/00 ,  B29C33/38 ,  B29C67/24 ,  C08G69/00 ,  C08G69/26 ,  C08G69/28 ,  C08G69/48 ,  C08L77/06 ,  C08J5/00

Abstract: A process for producing shaped objects of a polyamide is described wherein the polyamide used is a polyamide substantially consisting of ?NH-(CH2)4-NH-CO(CH2)4-CO? units and having a relative viscosity, measured at 20.degree.C. on a 1.0% wt. solution in 96% sulfuric acid, of at least 2.0.

公开(公告)号：DE3272616D1

公开(公告)日：1986-09-18

申请号：DE3272616

申请日：1982-11-22

Applicant: STAMICARBON

Inventor： VAN BOKHOVEN PETRUS H M ,  VAN ASPEREN PIETER J

IPC: C08L51/00 ,  C08L7/00 ,  C08L21/00 ,  C08L25/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/02 ,  C08L51/04 ,  C08L55/02 ,  C08L69/00

Abstract: The invention is directed to a polymer composition based on a polycarbonate and a graft copolymer of a vinyl aromatic compound and an unsaturated nitrile compound on a rubber-like polymer. To improve the flow properties thereof, the invention is characterized in that the polymer composition contains: A. one or more graft copolymers obtained by polymerizing 40-80 parts by weight of a monomer mixture consisting of: 20-40 wt-% of acrylonitrile 60-80 wt-% of styrene, and 0-20 wt-% of one or more other monomers in the presence of 20-60 parts by weight of rubber (with respect to 100 parts by weight of graft copolymer), B. one or more graft copolymers obtained by polymerizing 75-90 parts by weight of a monomer mixture consisting of: 20-40 wt-% of acrylonitrile 60-80 wt-% of styrene and 0-20 wt-% of one or more other monomers in the presence of 10-25 parts by weight of rubber (with respect to 100 parts by weight of graft copolymer), C. a copolymer of styrene and acrylonitrile obtained by polymerizing 60-80 parts by weight of styrene and 20-40 parts by weight of acrylonitrile, and D. one or more polycarbonates, the rubber content of the polymer composition being between 5 and 30 wt-% and the difference between the rubber contents of the graft copolymers being at least 5 wt-%.

公开(公告)号：AT21412T

公开(公告)日：1986-08-15

申请号：AT82201483

申请日：1982-11-22

Applicant: STAMICARBON

Inventor： VAN BOKHOVEN PETRUS H M ,  VAN ASPEREN PIETER J

IPC: C08L51/00 ,  C08L7/00 ,  C08L21/00 ,  C08L25/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/02 ,  C08L51/04 ,  C08L55/02 ,  C08L69/00

Abstract: The invention is directed to a polymer composition based on a polycarbonate and a graft copolymer of a vinyl aromatic compound and an unsaturated nitrile compound on a rubber-like polymer. To improve the flow properties thereof, the invention is characterized in that the polymer composition contains: A. one or more graft copolymers obtained by polymerizing 40-80 parts by weight of a monomer mixture consisting of: 20-40 wt-% of acrylonitrile 60-80 wt-% of styrene, and 0-20 wt-% of one or more other monomers in the presence of 20-60 parts by weight of rubber (with respect to 100 parts by weight of graft copolymer), B. one or more graft copolymers obtained by polymerizing 75-90 parts by weight of a monomer mixture consisting of: 20-40 wt-% of acrylonitrile 60-80 wt-% of styrene and 0-20 wt-% of one or more other monomers in the presence of 10-25 parts by weight of rubber (with respect to 100 parts by weight of graft copolymer), C. a copolymer of styrene and acrylonitrile obtained by polymerizing 60-80 parts by weight of styrene and 20-40 parts by weight of acrylonitrile, and D. one or more polycarbonates, the rubber content of the polymer composition being between 5 and 30 wt-% and the difference between the rubber contents of the graft copolymers being at least 5 wt-%.

公开(公告)号：CA1257944A

公开(公告)日：1989-07-25

申请号：CA459107

申请日：1984-07-18

Applicant: STAMICARBON

Inventor： VAN ASPEREN PIETER J ,  VROOMANS HUBERTUS J

IPC: C08L23/26 ,  C08L23/00 ,  C08L23/16 ,  C08L77/00 ,  C08L77/02 ,  C08L77/06 ,  C08L101/00

Abstract: The invention relates to an impact resistant polymer composition based on a polyamide and an ethylene-propylene rubber modified with carboxyl groups. The invention is characterized in that the polymer composition consists of 50-99 parts by weight polyamide substantially consisting of units having the formula (CO-C4H8-CO-NH-C4H8-NH), and 1-50 parts by weight ethylene-propylene rubber treated with ethylenically unsaturated compound containing or capable of supplying one or more carboxyl groups.

公开(公告)号：CA1098249A

公开(公告)日：1981-03-24

申请号：CA296889

申请日：1978-02-15

Applicant: STAMICARBON

Inventor： SCHOEN LOEWHARDT A A ,  VAN ASPEREN PIETER J ,  BRULS WILHELMUS G M ,  DEBETS WILHELMUS A M

IPC: C08F8/00 ,  C08F8/20 ,  C08F8/22 ,  C08F110/02 ,  C08F10/02

Abstract: An improved process for chlorinating high density polyethylene "in bulk" is described, with a two-stage reaction, the first at temperatures below the crystalline melting point, and the second above that temperature, and using a polyethylene starting material having a critical combination of characteristics, as described.