公开(公告)号：CA2027004A1

公开(公告)日：1991-03-01

申请号：CA2027004

申请日：1990-10-05

Applicant: CHAPMAN GEORGE R ,  PRIESTER DONNAN E ,  STEWART CHARLES W ,  TARNEY ROBERT E

Inventor： CHAPMAN GEORGE R JR ,  PRIESTER DONNAN E ,  STEWART CHARLES W ,  TARNEY ROBERT E

IPC: C08L23/02 ,  C08L25/06 ,  C08L27/12 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C08L57/00 ,  C08J3/28 ,  B29C47/00

Abstract: The subject invention provides a composition having excellent extrusion characteristics comprising a difficulty-melt-processible polymer and 0.002-0.5 wt. % of one or more fluoropolymer process aids wherein the fluoropolymer has a fluorine to carbon ratio of at least 1:2, is capable of forming a die-coating film under the prevailing conditions of extrusion temperature and pressure, and contains an effective amount of polar functional polymer chain end groups, -W, wherein -W is selected from -COF, -SO2F, -SO3M, -OSO3M, -COOR, and -COOM, wherein R is C1-3 alkyl and M is hydrogen, a metal cation, preferably an alkali or alkaline earth metal cation, or a quaternary ammonium cation.

公开(公告)号：CA2027098A1

公开(公告)日：1991-04-07

申请号：CA2027098

申请日：1990-10-05

Applicant: CHAPMAN, GEORGE R., JR. ,  PRIESTER, DONNAN E. ,  MCMINN, RITA S. ,  PHILLIPS, WILLIAM L.

Inventor： CHAPMAN, GEORGE R., JR. ,  PRIESTER, DONNAN E. ,  MCMINN, RITA S. ,  PHILLIPS, WILLIAM L.

IPC: C08K3/20 ,  B29C48/30 ,  B29K101/00 ,  C08K3/16 ,  C08L23/02 ,  C08L101/00 ,  D01D4/02

Abstract: Process of melt extruding through an extrusion die whose surface is coated with one or more metal oxides, MxOy, wherein M is a metal selected from the group consisting of Ti, Zr, Cr, Fe, Ni, Pd, Pt, Cu, Ag, Au, Al and Si, and x and y are selected to satisfy the valencies of M, a difficultly-melt-processible polymer containing 0.002-2 parts by weight, based on the weight of the polymer, of at least one melt-processible fluorocarbon polymer processing aid having a fluorine to carbon ratio of at least 1:2 and having metal oxide-reactive sites capable of reacting with or physically associating with the metal oxide of the die surface.

公开(公告)号：CA2027099A1

公开(公告)日：1991-04-07

申请号：CA2027099

申请日：1990-10-05

Applicant: CHAPMAN GEORGE R ,  PRIESTER DONNAN E

Inventor： CHAPMAN GEORGE R JR ,  PRIESTER DONNAN E

IPC: B29C47/00 ,  C08L23/02 ,  C08L23/04 ,  C08L27/00 ,  C08L27/18 ,  C08L23/00

Abstract: An extrusion process for difficultly-melt-processible resins, for example, a difficulty-melt-processible hydrocarbon polymer, having improved processibility and having incorporated therein an elastomeric fluorocarbon copolymer, for example, an amorphous vinylidene fluoride copolymer and a crystalline vinylidene fluoride polymer.

公开(公告)号：CA2027007A1

公开(公告)日：1991-04-07

申请号：CA2027007

申请日：1990-10-05

Applicant: PRIESTER, DONNAN E. ,  TARNEY, ROBERT E.

Inventor： PRIESTER, DONNAN E. ,  TARNEY, ROBERT E.

IPC: B29C47/00 ,  B29C48/30 ,  B29K27/12 ,  B29K101/00 ,  C08L23/00 ,  C08L23/02 ,  C08L27/12 ,  C08L27/18 ,  C08L101/00

公开(公告)号：CA2027003A1

公开(公告)日：1991-07-05

申请号：CA2027003

申请日：1990-10-05

Applicant: CHAPMAN GEORGE R ,  PRIESTER DONNAN E ,  STEWART CHARLES W

Inventor： CHAPMAN GEORGE R JR ,  PRIESTER DONNAN E ,  STEWART CHARLES W

IPC: B29C47/00 ,  C08J3/28 ,  C08L57/00 ,  C08L67/00 ,  C08L77/00

Abstract: TITLE Processing Aid For Polymers Polymer blend composition having improved processibility and comprising: (a) a major portion of a difficultly melt-processible polymer, and (b) a minor portion of: (1) at least an effective amount, to improve processibility, of a fluorocarbon copolymer which at the melt-processing temperature of (a) is either in a melted form if crystalline, or is above its glass transition temperature if amorphous, and (2) at least an effective amount, to improve processibility, of at least one tetrafluoroethylene homopolymer or copolymer of tetrafluoroethylene and at least one monomer copolymerizable therewith, wherein the mole ratio of fluorine to hydrogen is at least 1:1, and which is solid at the melt-processing temperature of (a); masterbatches comprised of the processing aid: and processes utilizing the processing aid.