SG11202112115XA - Method of extruding linear low-density polyethylene (lldpe) without surface fractures in the melt - Google Patents
Method of extruding linear low-density polyethylene (lldpe) without surface fractures in the meltInfo
- Publication number
- SG11202112115XA SG11202112115XA SG11202112115XA SG11202112115XA SG11202112115XA SG 11202112115X A SG11202112115X A SG 11202112115XA SG 11202112115X A SG11202112115X A SG 11202112115XA SG 11202112115X A SG11202112115X A SG 11202112115XA SG 11202112115X A SG11202112115X A SG 11202112115XA
- Authority
- SG
- Singapore
- Prior art keywords
- lldpe
- melt
- density polyethylene
- linear low
- surface fractures
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/04—Particle-shaped
-
- 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
- B29C48/30—Extrusion nozzles or dies
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92285—Surface properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0625—LLDPE, i.e. linear low density polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0088—Molecular weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0094—Geometrical properties
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962854493P | 2019-05-30 | 2019-05-30 | |
PCT/US2020/033109 WO2020242789A1 (en) | 2019-05-30 | 2020-05-15 | Method of extruding linear low-density polyethylene (lldpe) without surface fractures in the melt |
Publications (1)
Publication Number | Publication Date |
---|---|
SG11202112115XA true SG11202112115XA (en) | 2021-12-30 |
Family
ID=70975933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG11202112115XA SG11202112115XA (en) | 2019-05-30 | 2020-05-15 | Method of extruding linear low-density polyethylene (lldpe) without surface fractures in the melt |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220176592A1 (en) |
EP (1) | EP3976339A1 (en) |
CN (1) | CN113784829A (en) |
CA (1) | CA3141122A1 (en) |
SG (1) | SG11202112115XA (en) |
WO (1) | WO2020242789A1 (en) |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991508A (en) * | 1959-09-23 | 1961-07-11 | Du Pont | Fabrication of thermoplastic resins |
GB1441586A (en) | 1972-07-12 | 1976-07-07 | Ici Ltd | Method for reducing sharkskin on extruded polymeric material |
US4282177A (en) | 1979-01-08 | 1981-08-04 | Union Carbide Corporation | Method for reducing sharkskin melt fracture during extrusion of ethylene polymers |
US4267146A (en) | 1979-01-08 | 1981-05-12 | Union Carbide Corporation | Method for reducing melt fracture during extrusion of ethylene polymers |
US4348349A (en) | 1980-10-01 | 1982-09-07 | Union Carbide Corporation | Method for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer |
US4360494A (en) | 1981-04-01 | 1982-11-23 | Union Carbide Corporation | Process for reducing melt fracture during extrusion of a molten narrow molecular weight distribution, linear, ethylene copolymer |
US4859398A (en) | 1987-07-02 | 1989-08-22 | Mobil Oil Corporation | High shear extrusion of linear low density polyethylene |
US5089200A (en) | 1989-10-06 | 1992-02-18 | E. I. Dupont De Nemours And Company | Process for melt extrusion of polymers |
US5278272A (en) * | 1991-10-15 | 1994-01-11 | The Dow Chemical Company | Elastic substantialy linear olefin polymers |
US5320798A (en) | 1993-02-17 | 1994-06-14 | Exxon Chemical Patents, Inc. | Method for processing polyolefins at high shear rates |
CA2301836C (en) | 1997-08-27 | 2009-02-03 | The Dow Chemical Company | Rheology modification of elastomers |
US6017991A (en) | 1997-09-22 | 2000-01-25 | Minerals Technologies Inc. | Polyolefin film composition and resins useable therefore and related making method |
FR2777502B1 (en) | 1998-04-15 | 2000-06-09 | Ceisa | HIGH-CLARITY HEAT SHRINKABLE POLYETHYLENE FILM FOR PACKAGING PRODUCT GROUPS |
US6474969B1 (en) * | 2000-10-27 | 2002-11-05 | Tds Technologies Inc. | Extrusion die and die assembly for underwater pelletizer |
US7795366B2 (en) | 2002-08-12 | 2010-09-14 | Exxonmobil Chemical Patents Inc. | Modified polyethylene compositions |
US7632086B2 (en) * | 2003-10-03 | 2009-12-15 | Exxonmobil Chemical Patents Inc. | Melt fracture reduction |
US8835569B2 (en) * | 2011-06-30 | 2014-09-16 | Dow Global Technologies Llc | Fractional melt index polyethylene composition and films made therefrom |
US9273170B2 (en) | 2014-03-12 | 2016-03-01 | Chevron Phillips Chemical Company Lp | Polymers with improved toughness and ESCR for large-part blow molding applications |
-
2020
- 2020-05-15 SG SG11202112115XA patent/SG11202112115XA/en unknown
- 2020-05-15 WO PCT/US2020/033109 patent/WO2020242789A1/en unknown
- 2020-05-15 CA CA3141122A patent/CA3141122A1/en active Pending
- 2020-05-15 US US17/600,961 patent/US20220176592A1/en active Pending
- 2020-05-15 EP EP20730364.5A patent/EP3976339A1/en active Pending
- 2020-05-15 CN CN202080032682.8A patent/CN113784829A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220176592A1 (en) | 2022-06-09 |
WO2020242789A1 (en) | 2020-12-03 |
EP3976339A1 (en) | 2022-04-06 |
CA3141122A1 (en) | 2020-12-03 |
CN113784829A (en) | 2021-12-10 |
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