SE2230251A1 - A recyclable thermoplastic material blend comprising poly(ethylene terephthalate) - Google Patents
A recyclable thermoplastic material blend comprising poly(ethylene terephthalate)Info
- Publication number
- SE2230251A1 SE2230251A1 SE2230251A SE2230251A SE2230251A1 SE 2230251 A1 SE2230251 A1 SE 2230251A1 SE 2230251 A SE2230251 A SE 2230251A SE 2230251 A SE2230251 A SE 2230251A SE 2230251 A1 SE2230251 A1 SE 2230251A1
- Authority
- SE
- Sweden
- Prior art keywords
- pet
- recycled
- thermoplastic
- laminated
- laminate
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 34
- 229920000139 polyethylene terephthalate Polymers 0.000 title claims abstract description 22
- 239000005020 polyethylene terephthalate Substances 0.000 title claims abstract description 22
- -1 poly(ethylene terephthalate) Polymers 0.000 title claims abstract description 16
- 239000012815 thermoplastic material Substances 0.000 title claims abstract description 15
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 25
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 22
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229920001577 copolymer Polymers 0.000 claims abstract description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002648 laminated material Substances 0.000 claims description 9
- 238000004064 recycling Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- 239000012792 core layer Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 claims description 4
- 238000010101 extrusion blow moulding Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000001304 sample melting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/042—Mixing disintegrated particles or powders with other materials, e.g. with virgin materials
-
- 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
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
Abstract
A recycled thermoplastic composition with improved processing properties comprising laminated thermoplastic material, having two or more strata wherein at least one strata is composed of a copolymer a) between;a,i) 1 ,2-ethanediol (EG),a,ii) β,β,β'β'-tetramethyl-3,9-(2,4,8,10-tetraoxaspiro[5.5]undecane)diethanol ( PSG ) and a,iii) benzene- 1,4-dicarboxylic acid (PTA)and,b) at least one strata is derived from the said laminated thermoplastic material composed of poly(ethylene terephthalate) (PET),wherein the thermoplastic composition is grinded into flakes and possibly pelletized.The invention also relates to a laminate composition comprising recycled blend material.
Description
A recyclable thermoplastic material blend comprising poly(ethylene terephthalate)
FIELD OF THE INVENTION
The present invention relates to a therrnoplastic material blend comprising poly(ethylene
terephthalate) Which is recyclable and easy to process.
BACKGROUND OF THE INVENTION
It is well known in the art to produce different types of containers from poly(ethylene terephthalate) commonly abbreviated as PET. Among the containers produced bottles and trays can be mentioned. One problem with PET is that it is not able to withstand temperatures used for so called hot-fill application which historically have meant that the industry have been left with the only choice of glass, polycarbonate or polystyrene. These materials are all questionable from an environmental point of view. In an aim to solve the drawbacks different PET-like polymers with improved high temperature properties have been developed. These PET-like polymers are most often used together with traditional PET in a so-called A-B-A type laminate where the more temperature resistant PET-like polymers form the outer layers (A) and the traditional PET form the core layer (B). This core layer (B) most often constitutes more than 60% by weight of the laminate.
One problem with these kind of laminates are connected to recycling of the material. The possibility for recycling is indeed very important from an environmental point of view as a good material is reused and limited resources are saved. Typically the used laminate products are grinded into flakes, thoroughly rinsed and melted and formed into pellets for use in new products. As with many polymers, also the herein described polymers need to be dehumidified before they can be processed in injection molding or extrusion molding as blistering or even more severe problems in production will occur. It is known that many known such recycled materials as described above will agglomerate during the dehumidifying and will be impossible to process further due to this. Many of these polymers are also known to become hazy after recycling which means that they can only be used in new low-end packaging. There is thus a great need for a polymer composition that is easier to process after recycling and have mechanical and visual properties that are closer to so-called
virgin material.
DETAILED DESCRIPTION OF THE INVENTION
It has, through the present invention been made possible to recycle and process laminated products, where the resulting product has mechanical and processing properties that is on pair with Virgin material. The invention accordingly refers to a recycled thermoplastic composition with improved processing properties. The invention is characterized in that it comprises laminated thermoplastic material, said laminated therrnoplastic material comprising two or more strata wherein at least one strata is composed of a copolymer a) between;
a,i) LZ-ethanediol (hereinafter EG),
a,ii) ß,ß,ß'ß'-tetramethyl-3,9-(2,4,8, l0-tetraoxaspiro[5.5]undecane)diethanol (hereinafter PSG) and
a,iii) benzene-1 A-dicarboxylic acid (hereinafter PTA)
and wherein,
b) at least one strata is derived from the said laminated thermoplastic material composed of poly(ethylene terephthalate) (hereinafter PET),
wherein the thermoplastic composition is grinded into flakes and possibly pelletized.
The copolymer a) component is preferably present in the recycled thermoplastic composition
in the range 0.5 - 40 % by weight.
The laminate, i.e. the material to be recycled, comprising EG, PSG, PTA and PET, is present in a mix together with mono layer sheet material or bottles made from PET, wherein the laminate material comprises 1- 40 % by weight and monolayer PET material comprises 60 -
99% by weight of the mix.
The recycled thermoplastic composition is used for injection molding, extrusion molding
and/or blow molding by using the same range of processing parameters as for PET.
The invention also relates to a laminated thermoplastic laminate produced through co- extrusion having a core layer B and at least one outer layer A. The core layer B comprises at least 10% by weight of a recycled thermoplastic laminated material. Said recycled thermoplastic laminated material comprises at least two strata, before the recycling wherein
at least one strata is composed of a copolymer a) between;
a,i) 1,2-ethanediol (EG),
a,ii) ß,ß,ß'ß'-tetramethyl-3,9-(2,4,8,10-tetraoxaspiro[5.5]undecane)diethano1 (PSG) and a,iii) benzene-1,4-dicarboxylic acid (PTA)
and Wherein,
b) at least one strata derived from the said laminated thermoplastic material is composed of po1y(ethy1ene terephthalate) (PET).
Said recycled thermoplastic material is, after being mixed With PET, coextruded into a
laminate together With copolymer composed of EG, PSG and PTA.
The laminate is of A-B-A type, Where B comprises the recycled thermoplastic material and A is the copolymer composed of EG, PSG and PTA.
The layer(s) A preferably constitutes 5 -50% by Weight of the laminate.
According to one embodiment of the invention the layer(s) A is/are made from Virgin material and B comprises 0.5 - 10% by Weight of recycled laminate material, remainder being
ordinary PET.
According to another embodiment of the invention the 1ayer(s) B comprises 1 - 8 % by
Weight of recycled laminate material, remainder being ordinary PET.
The ordinary PET is suitably at least 50% by Weight of recycled PET, more suitably at least 75% by Weight of recycled PET.
EMBODIMENT EXAMPLES
A number of different thermoplastic laminates of A-B-A type Which Were produced through coextrusion Were grinded into flakes and then pelletized, The composition of the A layer of the laminate is a co-polymer made from;
ai) LZ-ethanediol (EG),
a,ii) ß,ß,ß'ß'-tetramethyl-3,9-(2,4,8,10-tetraoxaspiro[5.5]undecane)diethanol (PSG) and
a,iii) benzene-1 ,4-dicarboxylic acid (PTA).
The above copolymer is known on the market as AkestraTM. AkestraTM exist in three different qualities; AkestraTM 90, AkestraTM 100 & AkestraTM 110.
The B layer of the laminate is made from po1y(ethy1ene terephthalate) (PET).
Four different recycling compositions where tested with different ranges of standard PET
material mixed with the A-B-A laminate in accordance with the below table 1. These tests
where made to simulate PET recycling where for example PET bottles could be mixed with
different levels of other type of PET based laminated packaging such as herein disclosed.
Table I Sample number (PET) A-B-A laminate* A= share of the blend (% by weight) (% by weight) (% by weight) 1 90 10 2 2 80 20 4 3 70 30 6 4 60 40 8
*The A-B-A laminate comprises; A = EG/PSG/PTA, B= PET
The resulting pellets from samples 1, 3 & 4 where then analyzed for melting peak
temperature, melting enthalpy, crystallization peak temperature and crystallization enthalpy,
in comparison with 100% PET. The results are shown in Table 2.
Table 2 Sample Melting peak Melting Crystallization Crystallization (°C) enthalpy peak enthalpy Delta H (°C) delta H (J/g) (J/g)
PE T First heating 252 3 8 206 41 (100%) Second heating 245 43
1; (90/10) First heating 251 41 196 37 Recycled blend Second heating 243 37
3; (70/30) First heating 250 39 188 38 Recycled blend Second heating 246 35
4; (60/40) First heating 251 41 191 3 8 Recycled blend Second heating 247 35
It showed that the recycled blends have properties very similar to pure 100% PET and can
accordingly be processed using the same range of process settings as with PET.
The recycled blends were further tested for agglomeration properties. Agglomeration is not
desired and is known to occur during drying (de-hydration) of the pellets before
manufacturing. Manufacturing includes injection molding, extrusion molding and blow
molding. Any remaining water in the pellets will cause problems during molding. The most
common is so-called blistering.
Two containers With the diameter of 130 mm and height of 160 mm were covered With aluminum foil on the bottom. Pellets from sample 2 (of table 1) were filled to a height of 50 mm in a first container while pellets from sample 4 (of table 1) where filled to a height of 50 mm in a second container. The top of the pellets where then covered with aluminum foil whereupon 9.5 kg weights, one for each container, with the diameter 125 mm were arranged on top of the aluminum foil covered pellets. The two prepared containers were then placed in an oven at the temperature of 210 °C for 90 minutes. After this 90 minute baking the containers with samples and weight were removed from the oven and allowed to cool. After the cooling period the weights were removed and the pellets were carefully poured out of the container under inspection to check for signs of ag glomeration. It was found that the sample pellets did not show any tendency to agglomerate.
The above result show that any type of molding with the recycled blend material could be processed in all common types of manufacturing without modifying this equipment with no
risk of clogging of feeding or plasticization units in the molding equipment.
The recycled blends were further tested for tensile strength and elongation. The tensile tests were done according to ISO 527-2 1 B to measure yield stress and strain, tensile strength and elongation at break. The equipment used was a Zwick Z10 Table top machine with a 10 kN load cell. A uniaxial extension rate of 50 mm/min has been used. Measurements were performed at 23 °C and 50% RH. Dog-bone-shaped sample specimens, ISO 527-3 type 5, for the tensile tests were injection moulded, with a thickness of approximately 4 mm. Specimens for all tests were conditioned for at least three days at 23 “C and 50% RH before measurements. The tensile results are the average values of 5 specimens. Sample 1 - 4 refers to table 1, while PET* (for comparison) in the table refers to Virgin non-recycled PET. The
results are shown in table 3.
Table 3 Sample Stress at yield Tensile strength at Elongation at yield Elongation at maximum maximum 1 (90/10) 57 57 8.9 9 2 (80/20) 57 57 8.8 9 3 (70/30) 58 58 8.8 9 4 (60/40) 57 57 8.7 9 PET* 57 57 8.8 9
The results show that the mechanical properties of recycled laminated thermoplastic composition according to the present invention is very close, if not identical to Virgin PET material. This shows that laminated thermoplastic material in accordance With the present invention can be recycled to a full extent. The latter is of course very advantageous from an
environmental point of view.
The samples l - 4 (of table l) Where finally tested for optical appearance. The samples l - 4 where injection molded into 2.2 mm thick plates and extrusion molded into 0.4 mm thick plates respectively. Samples from Virgin PET material Was prepared using the same process for comparison. The samples Where then optically evaluated for haziness. No notable difference in haziness could be detected on the set of 0.4 mm plates. On the 2.2 mm plates sample no l Was found to be slightly less hazy than the PET comparison While sample no 2 was very similar to the PET comparison. Samples 3 and 4 Was found to be slightly more hazy
than the PET comparison.
Claims (5)
- l. A recycled thermoplastic composition With improved processing properties characterized in that it comprises laminated thennoplastic material, said laminated thermoplastic material comprising two or more strata wherein at least one strata is composed of a copolymer a) between; a,i) l,2-ethanediol (EG), a,ii) ß,ß,ß'ß'-tetramethyl-3,9-(2,4,8,l0-tetraoxaspiro[5.5]undecane)diethanol (PSG) and a,iii) benzene-l A-dicarboxylic acid (PTA) and wherein, b) at least one strata is derived from the said laminated thermoplastic material composed of poly(ethylene terephthalate) (PET), wherein the thermoplastic composition is grinded into flakes and possibly pelletized.
- 2. A recycled thermoplastic composition according to claim l wherein the copolymer a) component is present in the recycled thermoplastic composition in the range 0.5 - 40 % by Weight.
- 3. A recycled thermoplastic composition according to claim l wherein the laminate comprising EG, PSG, PTA and PET, is present in a mix together with mono layer sheet material or bottles made from PET, Wherein the laminate material comprises l- 40 % by weight and monolayer PET material comprises 60 - 99% by weight of the mix.
- 4. A recycled thermoplastic composition according to any of the claims l - 3 wherein the recycled therrnoplastic composition is used for injection molding, extrusion molding and/or blow molding by using the same range of processing parameters as for PET. ll. A laminated thermoplastic laminate produced through co-extrusion having a core layer B and at least one outer layer A Wherein the core layer B comprises at least 10% by Weight of a recycled thermoplastic laminated material, said recycled therrnoplastic laminated material comprising at least two strata, before the recycling Wherein at least one strata is composed of a copolymer a) between; a,i) 1,2-ethanediol (EG), a,ii) ß,ß,ß'ß'-tetramethyl-3,9-(2,4,8,10-tetraoxaspiro[
- 5.5]undecane)diethanol (PSG) and a,iii) benzene-1,4-dicarboxylic acid (PTA) and Wherein, b) at least one strata derived from the said laminated thermoplastic material is composed of poly(ethylene terephthalate) (PET), that said recycled thermoplastic material, after being mixed With PET, is coextruded into a laminate together With copolymer composed of EG, PSG and PTA. A laminated thermoplastic laminate according to claim 5 Wherein the laminate is of A-B-A type, Where B comprises the recycled thermoplastic material and A is the copolymer composed of EG, PSG and PTA. _ A laminated thermoplastic laminate according to claim 5 or 6 Wherein A constitutes 5 - 50% by Weight of the laminate. A laminated thermoplastic laminate according to any of the claims 5 - 7 Wherein A is made from Virgin material and B comprises 0.5 - 10% by Weight of recycled laininate material, remainder being ordinary PET. A laminated thermoplastic laminate according to claim 8 Wherein B comprises 1 - 8 % by Weight of recycled laminate material, remainder being ordinary PET. A laminated thermoplastic laminate according to claim 8 or 9 Wherein the ordinary PET is at least 50% by Weight of recycled PET. A laminated thermoplastic laminate according to claim 8 or 9 Wherein the ordinary PET is at least 75% by Weight of recycled PET.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2230251A SE2230251A1 (en) | 2022-08-01 | 2022-08-01 | A recyclable thermoplastic material blend comprising poly(ethylene terephthalate) |
| PCT/SE2023/050723 WO2024030058A1 (en) | 2022-08-01 | 2023-07-10 | Pa recyclable thermoplastic material blend comprising poly(ethylene terephthalate) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2230251A SE2230251A1 (en) | 2022-08-01 | 2022-08-01 | A recyclable thermoplastic material blend comprising poly(ethylene terephthalate) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE2230251A1 true SE2230251A1 (en) | 2024-02-02 |
Family
ID=89849684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE2230251A SE2230251A1 (en) | 2022-08-01 | 2022-08-01 | A recyclable thermoplastic material blend comprising poly(ethylene terephthalate) |
Country Status (2)
| Country | Link |
|---|---|
| SE (1) | SE2230251A1 (en) |
| WO (1) | WO2024030058A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06255645A (en) * | 1993-03-02 | 1994-09-13 | Shokuhin Sangyo Ekorojikaru Packing Gijutsu Kenkyu Kumiai | Bottle of regenerated polyethylene terephthalate resin |
| JP3021372B2 (en) * | 1996-11-21 | 2000-03-15 | 守 加茂 | How to Recycle Synthetic Resin Containers |
| JP4739931B2 (en) * | 2005-11-30 | 2011-08-03 | 電気化学工業株式会社 | Multilayer resin sheet and vending machine display using the same |
| US20130126462A1 (en) * | 2011-11-17 | 2013-05-23 | Wisys Technology Foundation, Inc. | Ultraviolet-Blocking Recyclable Plastic Container |
| JP2013177544A (en) * | 2012-01-31 | 2013-09-09 | Toray Ind Inc | Aromatic polyester resin foam |
| JP6535178B2 (en) * | 2015-02-20 | 2019-06-26 | 東洋製罐株式会社 | Method for producing polyethylene terephthalate flake |
| US10076888B2 (en) * | 2015-04-28 | 2018-09-18 | Sabic Global Technologies B.V. | Multi-layer materials and articles made therefrom and methods of making |
| ES2894959T3 (en) * | 2017-12-05 | 2022-02-16 | Point Plastic S R L | Procedure for the extrusion of a film based on thermoplastic material |
| DE102018122210B4 (en) * | 2018-09-12 | 2023-06-29 | Rittec Umwelttechnik Gmbh | Process and use of a device for recycling waste containing polyalkylene terephthalate |
-
2022
- 2022-08-01 SE SE2230251A patent/SE2230251A1/en unknown
-
2023
- 2023-07-10 WO PCT/SE2023/050723 patent/WO2024030058A1/en unknown
Non-Patent Citations (2)
| Title |
|---|
| Akestra - Packnews * |
| Trossaert L. et al. Lifting the Sustainability of Modified Pet-Based Multilayer Packaging Material with Enhanced Mechanical Recycling Potential and Processing Polymers 2022, 14, 196. https://doi.org/ 10.3390/polym14010196 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024030058A1 (en) | 2024-02-08 |
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