BE746887A - DEGRADATION PROCESS, IN BOOSTERS, OF HIGHLY POLYMERIZED POLYISOBUTYLENE - Google Patents

DEGRADATION PROCESS, IN BOOSTERS, OF HIGHLY POLYMERIZED POLYISOBUTYLENE

Info

Publication number
BE746887A
BE746887A BE746887DA BE746887A BE 746887 A BE746887 A BE 746887A BE 746887D A BE746887D A BE 746887DA BE 746887 A BE746887 A BE 746887A
Authority
BE
Belgium
Prior art keywords
boosters
degradation process
highly polymerized
polymerized polyisobutylene
polyisobutylene
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of BE746887A publication Critical patent/BE746887A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/63—Screws having sections without mixing elements or threads, i.e. having cylinder shaped sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
BE746887D 1969-03-06 1970-03-05 DEGRADATION PROCESS, IN BOOSTERS, OF HIGHLY POLYMERIZED POLYISOBUTYLENE BE746887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691911307 DE1911307C2 (en) 1969-03-06 1969-03-06 Process for the degradation of high molecular weight polyisobutylene in screw machines

Publications (1)

Publication Number Publication Date
BE746887A true BE746887A (en) 1970-09-07

Family

ID=5727263

Family Applications (1)

Application Number Title Priority Date Filing Date
BE746887D BE746887A (en) 1969-03-06 1970-03-05 DEGRADATION PROCESS, IN BOOSTERS, OF HIGHLY POLYMERIZED POLYISOBUTYLENE

Country Status (5)

Country Link
AT (1) AT297310B (en)
BE (1) BE746887A (en)
DE (1) DE1911307C2 (en)
FR (1) FR2033134A5 (en)
GB (1) GB1293671A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262489A (en) * 1990-08-23 1993-11-16 White Donald A Process for producing low molecular weight isoolefin polymers
US6420485B1 (en) 2000-08-14 2002-07-16 Dow Corning Corporation Siloxane-grafted hydrocarbon copolymers

Also Published As

Publication number Publication date
AT297310B (en) 1972-03-27
FR2033134A5 (en) 1970-11-27
DE1911307B1 (en) 1970-03-26
DE1911307C2 (en) 1970-12-03
GB1293671A (en) 1972-10-18

Similar Documents

Publication Publication Date Title
BE750611A (en) PERFECTED POLYMERIZATION PROCESS
BE759962A (en) POLYMERIZATION PROCESS
BE744282A (en) NEW POLYMERIZATION PROCESS
BE747748A (en) POLYMERIZATION PROCESS
BE770084A (en) POLYMERIZATION PROCESS
BE746887A (en) DEGRADATION PROCESS, IN BOOSTERS, OF HIGHLY POLYMERIZED POLYISOBUTYLENE
BE755279A (en) POLYMERIZATION PROCESS
CA924448A (en) Process of polymerization
BE763954A (en) POLYMERIZATION PROCESS
BE764157A (en) VINYL-CARBAZOLE POLYMERIZATION PROCESS
BE762138A (en) POLYMERIZATION PROCESS
BE767909A (en) CONTINUOUS POLYMERIZATION PROCESS
BE748465R (en) POLYMERIZATION PROCESS OF
BE764101A (en) VINYL-CARBAZOLE POLYMERIZATION PROCESS
BE774158A (en) POLYMERIZATION PROCESS
ZA706758B (en) Polymerization process
BE747749A (en) POLYMERIZATION PROCESS
BE744085A (en) POLYMERIZATION PROCESS
BE764845A (en) S-ALCENYL-2-AMINOETHYL-THIOETHERS POLYMERIZATION PROCESS
BE768669A (en) POLYMERIZATION PROCESS
BE773384A (en) POLYMERIZATION PROCESS
BE755947A (en) POLYMERIZATION PROCESS
CA829396A (en) Polymerization process
CA829399A (en) Polymerization process
AU448144B2 (en) Polymerization process

Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: BADISCHE ANILIN & SODAFABRIK A.G.

Effective date: 19860331