ES481656A1 - Prepn. of propylene! copolymer for foaming sealable foils - by catalytic random copolymerisation to high reduced specific viscosity and degradation by melt extrusion - Google Patents

Prepn. of propylene! copolymer for foaming sealable foils - by catalytic random copolymerisation to high reduced specific viscosity and degradation by melt extrusion

Info

Publication number
ES481656A1
ES481656A1 ES481656A ES481656A ES481656A1 ES 481656 A1 ES481656 A1 ES 481656A1 ES 481656 A ES481656 A ES 481656A ES 481656 A ES481656 A ES 481656A ES 481656 A1 ES481656 A1 ES 481656A1
Authority
ES
Spain
Prior art keywords
copolymer
melt extrusion
specific viscosity
reduced specific
prepn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES481656A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of ES481656A1 publication Critical patent/ES481656A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/04—Monomers containing three or four carbon atoms
    • C08F210/06—Propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

A C3H6 copolymer, (I), is produced in 2 steps, by (I) preparing a random copolymer having reduced specific viscosity, RSV, 4-8 dl./g., by copolymerising a mixt. contg. by wt., either (a) 94-5-99.5% C3H6 with 0.5-6.5% C2H4 or (b) 85-97.5% C3H6, 0.5-5% C2H4 and 2-10%, w.r.t. total mixt., of another l-olefin having formula CH2=CHR (where R is 2-6C alkyl) in the presence of H2 as mol. wt. regulator, a catalyst and opt. a dispersant, and (2) degrading the copolymer by melt extrusion at 200-300 degrees C. in the absence of O2 and radical-donors, to reduce mol. wt. to RSV 1.8-3.5 dl./g. The catalyst in (1) consists of a Ti-contg. solid component, an organic Al component and opt. 1 or more cpds. having electron-donor character. (I) forms foils which retain their sealability also after preliminary printing. By controlling RSV in step (1), soluble polymer quantity is no higher than that obtd. by C3H6 homoplymerisation. The suspension is easily pumped and polymer powder is easily separated.
ES481656A 1978-06-24 1979-06-18 Prepn. of propylene! copolymer for foaming sealable foils - by catalytic random copolymerisation to high reduced specific viscosity and degradation by melt extrusion Expired ES481656A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2827764A DE2827764C2 (en) 1978-06-24 1978-06-24 Process for the production of a polypropylene suitable for sealable films

Publications (1)

Publication Number Publication Date
ES481656A1 true ES481656A1 (en) 1980-02-16

Family

ID=6042643

Family Applications (1)

Application Number Title Priority Date Filing Date
ES481656A Expired ES481656A1 (en) 1978-06-24 1979-06-18 Prepn. of propylene! copolymer for foaming sealable foils - by catalytic random copolymerisation to high reduced specific viscosity and degradation by melt extrusion

Country Status (5)

Country Link
AU (1) AU526083B2 (en)
DE (1) DE2827764C2 (en)
ES (1) ES481656A1 (en)
FR (1) FR2429231B1 (en)
ZA (1) ZA792833B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384024A (en) * 1981-03-19 1983-05-17 Imperial Chemical Industries Limited Composite heat-sealable films
DE4000695C2 (en) * 1990-01-12 1997-07-03 Huels Chemische Werke Ag Largely amorphous polyalphaolefins with a narrow molecular weight distribution, process for their production and use for carpet heavy-duty coating compositions or hot melt adhesives
BE1012068A3 (en) 1998-07-10 2000-04-04 Solvay HOLLOW bioriented BASED terpolymers PROPYLENE AND METHOD FOR MAKING SUCH HOLLOW.
DE602006004987D1 (en) 2006-07-10 2009-03-12 Borealis Tech Oy Electrical insulating film
EP2208749B1 (en) 2006-07-10 2015-12-16 Borealis Technology Oy Biaxially oriented polypropylene films
EP1967547A1 (en) 2006-08-25 2008-09-10 Borealis Technology OY Extrusion coated substrate
ATE432165T1 (en) † 2006-12-18 2009-06-15 Borealis Tech Oy HIGH MELTING POINT TERPOLYMER

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL298986A (en) * 1963-01-09 1900-01-01
GB1135542A (en) * 1966-02-23 1968-12-04 Asahi Chemical Ind Process for producing polyolefin fibres
US3562788A (en) * 1967-06-08 1971-02-09 Eastman Kodak Co Thermal degradation of polyolefins
AT290114B (en) * 1968-08-12 1971-05-25 Basf Ag Process for the production of easily further processable granular propylene polymer
DE2637990A1 (en) * 1976-08-24 1978-03-02 Hoechst Ag PROPYLENE TERPOLYMER
DE2637978B2 (en) * 1976-08-24 1979-10-25 Hoechst Ag, 6000 Frankfurt Heat-sealable plastic film and process for its production
DE2637991A1 (en) * 1976-08-24 1978-03-02 Hoechst Ag PLASTIC FILM MADE OF COPOLYMERS AND METHOD FOR MANUFACTURING THE SAME

Also Published As

Publication number Publication date
DE2827764A1 (en) 1980-01-10
AU4826179A (en) 1980-01-03
FR2429231A1 (en) 1980-01-18
ZA792833B (en) 1980-07-30
DE2827764C2 (en) 1988-01-21
FR2429231B1 (en) 1986-03-14
AU526083B2 (en) 1982-12-16

Similar Documents

Publication Publication Date Title
CA2157361A1 (en) Aqueous graft copolymer pigment dispersants
EP0334993A3 (en) Semiconductive resin composition
ES481656A1 (en) Prepn. of propylene! copolymer for foaming sealable foils - by catalytic random copolymerisation to high reduced specific viscosity and degradation by melt extrusion
AU2840389A (en) Catalyst composition for polymerizing alpha-olefin polymers of narrow molecular weight distribution
EP0343986A3 (en) Process for the suspension polymerization of 4-acetoxystyrene and hydrolysis to 4-hydroxystyrene polymers
GB1375731A (en)
ES8207561A1 (en) The Preparation of High Molecular Weight Hydrophilic Polymer Gels
IE791043L (en) Polymers with imide groups
KR910006386A (en) Electrostatic coating method of resin molding
IE46228L (en) Imide polymers
JPS5329291A (en) Cation exchange membrane and production of the same
ES448159A1 (en) Blends of copolyesters, ethylene/carboxylic acid copolymers and a polycarbodiimide
JPS5721409A (en) Production of ethylene copolymer
GB1477372A (en) Polymeric thickeners
EP0228777A3 (en) Melt extrudable composition of perfluorocarbon polymers
KR930000551A (en) Binder composition for ceramic bodies comprising ethylene oxide / propylene oxide block copolymer
CA2099139A1 (en) Aqueous coating composition and its preparation
EP0376689A3 (en) Polymeric films of metalloporphyrins as conductive materials for electrocatalysis
JPS5750535A (en) Nonaqueous solvent type dispersant
JPS5753512A (en) Water-based resin composition
KR910006381A (en) Conductive Modification Method of Resin Molded Body
JPS6469678A (en) Method for improving surface smoothness of electrodeposit
KR910015594A (en) Electrochemical polymerization of 5-ring heterocyclic monomers
EP0714962A4 (en) Coating resin composition
EP0379076A3 (en) Use of mixed polymeric surfactants for improved properties