CN103597018A - Disposable lid having polymer composite of polyolefin and mineral filler - Google Patents
Disposable lid having polymer composite of polyolefin and mineral filler Download PDFInfo
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- CN103597018A CN103597018A CN201280019637.4A CN201280019637A CN103597018A CN 103597018 A CN103597018 A CN 103597018A CN 201280019637 A CN201280019637 A CN 201280019637A CN 103597018 A CN103597018 A CN 103597018A
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- mineral filler
- polymer complex
- disposable
- approximately
- polyolefine
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- 239000012764 mineral filler Substances 0.000 title claims abstract description 87
- 229920000642 polymer Polymers 0.000 title claims abstract description 58
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 39
- 239000002131 composite material Substances 0.000 title abstract 2
- 239000004797 high-impact polystyrene Substances 0.000 claims abstract description 44
- 229920005669 high impact polystyrene Polymers 0.000 claims abstract description 43
- 235000012171 hot beverage Nutrition 0.000 claims abstract description 16
- 239000004700 high-density polyethylene Substances 0.000 claims description 48
- 229920001903 high density polyethylene Polymers 0.000 claims description 47
- 239000004743 Polypropylene Substances 0.000 claims description 36
- -1 polypropylene Polymers 0.000 claims description 33
- 229920001155 polypropylene Polymers 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 9
- 239000005431 greenhouse gas Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- 239000010456 wollastonite Substances 0.000 claims description 5
- 229910052882 wollastonite Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 description 17
- 239000011707 mineral Substances 0.000 description 17
- 239000000203 mixture Substances 0.000 description 15
- 241000723377 Coffea Species 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000000454 talc Substances 0.000 description 5
- 229910052623 talc Inorganic materials 0.000 description 5
- 235000012222 talc Nutrition 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003856 thermoforming Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- XUBKPYAWPSXPDZ-UHFFFAOYSA-N [Ba].OS(O)(=O)=O Chemical compound [Ba].OS(O)(=O)=O XUBKPYAWPSXPDZ-UHFFFAOYSA-N 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010423 industrial mineral Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- BPILDHPJSYVNAF-UHFFFAOYSA-M sodium;diiodomethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(I)I BPILDHPJSYVNAF-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/10—Metal compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Table Devices Or Equipment (AREA)
- Laminated Bodies (AREA)
Abstract
A disposable lid comprises a thermoformed sheet in the shape of a lid for a hot beverage container. The sheet comprises a polymer composite of a polyolefin and at least one mineral filler. The sheet has a thickness less than about 0.035 inches and a heat deflection temperature at least comparable to that of high impact polystyrene.
Description
Background technology
the cross reference of related application
The application requires the right of priority of the U.S. Provisional Application that the sequence number of application on April 21st, 2011 is 61/477,886, and its full content is incorporated herein by reference.
prior art
Hot drink, for example, be contained in the ground paper cup with disposable lid conventionally for the coffee of busy personage's fresh brew.Coffee, generally 90-96 ℃ of modulated, keeps and holds at 70-80 ℃ at 82-88 ℃.Coffee cup cover preferably has to bear lid is pushed into the upper required power of cup and the physical strength that keeps dimensional stability at the temperature of coffee.The physical strength of the material within a temperature range can be related to the heat-drawn wire (" HDT ") of material or the texturing temperature (" DTUL ") under load.For the cover closing material of hot drink cup, mainly by high-impact polystyrene (" HIPS "), made at present, due to its amorphous structure, it is easy to processing and between rigidity and intensity, has good balance.But, high-impact polystyrene resin may be subject to chemical erosion and by solvent, caused cracked.In addition, the residual styrene monomer existing in resin can distribute irritating smell.In addition,, in all commercial grade resins, high-impact polystyrene resin has relatively high carbon footprint.Therefore, still need to manufacture the disposable lid of improvement.
Technical field
The application relates generally to be particularly useful for the polymer composition of disposable lid and analogue.Particularly, the application relates to a kind of disposable lid that comprises thermoset sheet material, and this thermoset sheet material has the polymer complex of polyolefine and at least one mineral filler.
summary of the invention
Below will describe the application's object and advantage, by following description and by putting into practice, the application recognizes, can understand significantly objects and advantages of the present invention.The device particularly pointing out in written description and claim and from accompanying drawing, can realize and reach the application's extra advantage.
In order to reach these and other advantage and according to the application's broad sense and concrete object, the application comprises disposable lid, it comprises the thermoset sheet material for the lid shape of hot drink container.This sheet material comprises the polymer complex of polyolefine and at least one mineral filler.The thickness of this sheet material is less than approximately 0.035 inch, and heat-drawn wire is at least suitable with high-impact polystyrene.
According to one side, this heat-drawn wire is at least about the heat-drawn wire that equals high-impact polystyrene.Especially, according to the ASTM D648-06 standard testing method (2006) of the heat-drawn wire of the marginal position plastics under load by bending, heat-drawn wire can be at least approximately 87 ℃.
As implemented herein, mineral filler can comprise the mineral filler of high length-diameter ratio, for example, selects free talcum powder, mica, wollastonite or its group constituting.For example, polymer complex can comprise the mineral filler at least about the high length-diameter ratio of 10 % by weight.In addition or alternatively, mineral filler can comprise the mineral filler of low length-to-diameter ratio, for example calcium carbonate.For example, polymer complex can comprise the mineral filler at least about the low length-to-diameter ratio of 20 % by weight.The optional free homopolymer polypropylene of polyolefine, polypropylene impact copolymer, ethylene-propylene random copolymer, high density polyethylene(HDPE) or its group constituting.
In one embodiment, polyolefine comprises polypropylene, and mineral filler comprises the mineral filler of high length-diameter ratio, and this polymer complex comprises the mineral filler at least about 10 % by weight.In another embodiment, polyolefine comprises polypropylene, and mineral filler comprises the mineral filler of low length-to-diameter ratio, and this polymer complex comprises the mineral filler at least about 20 % by weight.In another embodiment, polyolefine comprises high density polyethylene(HDPE), and mineral filler comprises the mineral filler of high length-diameter ratio, and this polymer complex comprises the mineral filler at least about 20 % by weight.In another embodiment, polyolefine comprises high density polyethylene(HDPE), and mineral filler comprises the mineral filler of low length-to-diameter ratio, and this polymer complex comprises the mineral filler at least about 40 % by weight.
According on the other hand, polyolefine can comprise polypropylene, and mineral filler can comprise the mineral filler of high length-diameter ratio, and the shrinking percentage of this polymer complex can be suitable with high-impact polystyrene.For example, while measuring according to ASTM D955 standard (1996), the shrinking percentage of polymer complex can be approximately 0.5% to approximately 1.0%.In this mode, polymer complex comprises that approximately 20 % by weight are to the mineral filler of approximately 40 % by weight.
According on the other hand, polyolefine can comprise polyethylene, and mineral filler can comprise the mineral filler of high length-diameter ratio, and the shrinking percentage of this polymer complex can be suitable with polypropylene.For example, while measuring according to ASTM D955 standard (1996), the shrinking percentage of polymer complex can be approximately 1.25% to approximately 1.75%.In this embodiment, polymer complex comprises that approximately 30 % by weight are to the mineral filler of approximately 50 % by weight.
According to disclosed theme aspect, polymer complex mainly consists of polyolefine and at least one mineral filler.But this polymer complex can further comprise additive, it selects free tinting material, processing aid and the group constituting thereof.
As implemented herein, hot drink container can be coffee cup, but also can envision a kind of lid for other suitable vessel.
According to another aspect, the carbon footprint (footprint) of this polymer complex is lower than high-impact polystyrene.For example, the greenhouse gas emission of this polymer complex is lower than high-impact polystyrene.
It is only exemplary being to be understood that above-outlined and below describing in detail, the claim that is intended to further explain the application.
The accompanying drawing that is incorporated to this specification sheets and forms this specification sheets part is intended to diagram the application's device, and the further explanation to the application's device is provided.Accompanying drawing is used for explaining the application's principle together with written description.
Accompanying drawing explanation
Fig. 1 is pure high-impact polystyrene according to disclosed theme, pure polypropylene, pure high density polyethylene(HDPE) and polymer complex that some is mineral-filled heat-drawn wire figure separately.
Fig. 2 is pure high-impact polystyrene according to disclosed theme, pure polypropylene, pure high density polyethylene(HDPE) and polymer complex that some is mineral-filled shrinkage character figure separately.
preferred implementation describes in detail
With detailed reference to the application's preferred embodiment, diagram the application's embodiment in accompanying drawing.The disposable lid presenting herein is generally intended to and holds high temperature hot drink, and for example the cup of coffee or other container are used in conjunction with.Although herein with reference to the lid for hot drink cup, also can be contemplated to other similar or suitable purposes.
Typically, polyolefinic heat-drawn wire, lower than high-impact polystyrene (" HIPS "), is therefore not suitable for independent (for example pure) as the cover closing material of hot drink cup.Yet according to disclosed theme, polyolefinic heat-drawn wire can be by adding at least one mineral filler to improve to form polymer complex.The heat-drawn wire of the polymer complex obtaining can, at least about the heat-drawn wire that equals high-impact polystyrene, therefore can be used as the cover closing material of hot drink cup or analogue.
According to the disposable cover attached bag of disclosed theme, draw together the thermoforming sheet for the lid shape of hot drink container.Described sheet material comprises the polymer complex of polyolefine and at least one mineral filler.Sheet thickness be less than approximately 0.035 inch and heat-drawn wire at least suitable with the heat-drawn wire of high-impact polystyrene.
In one embodiment, mineral filler can comprise for improving the mineral filler of any appropriate of polyolefinic heat-drawn wire.Such as but not limited to, mineral filler can comprise the filler of high length-diameter ratio, the filler of low length-to-diameter ratio, or both mixtures.For ease of understanding, " length-to-diameter ratio " of term particle is defined as to the overall dimension of particle divided by the ratio of the minimum size of particle herein.The outside surface that is scanned and visually observed particle by electron microscope (amplifying 2,000 times) is determined length and the thickness of particle, thereby determines length-to-diameter ratio.
High length-diameter ratio filler is defined as to length-to-diameter ratio herein and is at least the approximately filler of 5: 1.The length-to-diameter ratio of the high length-diameter ratio filler of theme disclosed herein is generally approximately 5: 1 to approximately 40: 1, preferably approximately arrives approximately 20: 1 at 10: 1.High length-diameter ratio filler can comprise talcum powder, mica, wollastonite or its combination.Commercially available talcum powder material includes, but not limited to can be from Luzenac Amer ica of Eng lewood, and Colorado buys
575.Commercially available mica material comprises can be from Zemex Indust rial Minerals, and Inc. buys
325-PP.Commercially available wollastonite includes, but not limited to can be from NYCO Mineral s Inc.of Calgary, Alberta, and Canada buys
series wollastonite.
The length-to-diameter ratio of the low length-to-diameter ratio filler of disclosed theme is generally 1: 1 to approximately 3: 1, is preferably 1: 1 to approximately 2: 1.Low length-to-diameter ratio filler can comprise calcium carbonate, barium sulfate or its combination.Commercially available calcium carbonate includes, but not limited to can be from OMYA Inc.of Cincinnat i, the OMYACARB that OH buys
, or can be from Imerys Performance Minera l s Inc.of Alpharet ta, Ga. buys
an example of commercial sulfuric acid barium is can be from Polar Minerals in Mentor, the BARITE that Ohio buys
When at least one described filler comprises the mixture of high length-diameter ratio and low length-to-diameter ratio filler, described filler mixture can comprise high length-diameter ratio filler and the low length-to-diameter ratio filler of any appropriate weight percent.For example, described filler mixture can comprise the high length-diameter ratio filler of at least 50 % by weight.In one embodiment, described filler mixture can have the low length-to-diameter ratio filler that the approximately 50 high length-diameter ratio fillers and approximately 20 that arrive about 80wt.% arrive about 50wt.%.
According to one side, described polyolefine can be the polyolefine of any appropriate.Such as but not limited to, the optional free homopolymer polypropylene of polyolefine, polypropylene impact copolymer, ethylene-propylene random copolymer, high density polyethylene(HDPE) or its group constituting.Described polyolefine can be homo-polypropylene and the weight percent of crushing-resistant copolymerization polypropylene to need arbitrarily, and for example 60/40 mixes, or mixes enough to reach the blending ratio of the required impact properties of mixture.
According to an aspect, polymer complex can mainly be comprised of polyolefine and at least one mineral filler.But polymer complex can further comprise additive arbitrarily well known by persons skilled in the art.Such as, but not limited to, additive, can comprise tinting material, processing aid is for example usually used in those of processing compositions, or its combination.
According to an aspect, can use multiple conventional manufacture and moulding process to form this disposable lid, comprise thermoforming or injection molding technique, but use thermoforming process herein.According to a kind of manufacture method, the agglomerate of molten polyolefin resin in twin screw extruder.The powder of at least one mineral filler is mixed with polyolefin melt and/or join in polyolefin melt, to form mixture.This mixture is extruded by mould, to form extrusion sheet.Then extrudate piece is thermoformed into the shape of required disposable lid.Optionally, can from typical chemical technology, manufacture the mineral-filled compound with high filler content of agglomerate form, in sheet material expressing technique, make this agglomerate further be diluted to the filler content needing.
Can select as required the thickness of lid, but be generally less than approximately 0.15 inch, preferably be less than approximately 0.035 inch.Preferably, the thickness of lid can be approximately 0.01 to approximately 0.025 inch.Lid can be the natural colour of polyolefine/filler mixture, or the combination of shades of colour or color.As known in the art, can select as required height, weight, shape and the design of lid, for example, to coordinate suitable hot drink container, coffee cup.For example, the weight of lid can be approximately 3 to approximately 4 grams.Exemplary cap design comprises, but be not limited to, at U.S. Patent number 7, 819, 271, 7, 789, 260, 7, 691, 302, D556, 573, D544, 793, D541, 651, D541, 650, D541, 153, D540, 675, D540, 674, D540, 673, D540, 672, D540, 166, D540, 165, D539, 646, D533, 778, D635, 855, 7, 731, 047, 7, 513, 382, 7, 246, 715, D540, 167, D539, 650, D539, 649, D536, 249, D535, 561, 7, 159, 732, 7, 156, 251, 7, 134, 566, 7, 131, 551, D530, 602, 7, 063, 224, D514, 445, D514, 444, 6, 874, 649, 6, 732, 875, D489, 260, D485, 578, 6, 679, 397, 6, 644, 490, D478, 006, D477, 223, D476, 891, D476, 566, 4, 753, 365, D287, 919, 4, 615, 459 and 4, 589, in 569, describe and show, its content separately by reference integral body is incorporated herein.
According to the one side of disclosed theme, heat-drawn wire (" HDT "), being also known as texturing temperature (" DTUL ") under load can measure according to the ASTM D648-06 standard testing method (2006) in the heat-drawn wire of marginal position plastics under load by bending.For illustrated object and be not restriction, table 1 comprises the pure high-impact polystyrene measured according to ASTM D648-06 standard (2006), pure polypropylene (" PP "), pure high density polyethylene(HDPE) (" HDPE ") and the heat-drawn wire of the polymer complex of filling according to the multi mineral of disclosed theme.Nominally the data that table 1 provides are to be that 12.7mm, thickness are the injection-molded rod that 3.17mm and span are 101.6mm based on width.Apply 2.5N load to reach the fiber pressure of 0.455MPa (66PSI).The temperature of heat transmission medium is with the speed oblique ascension of 2.0 ℃/min.At 30 ℃, distortion is reset to 0, to allow any low-temperature creep.The temperature that sample is additionally out of shape under 0.25mm is considered to heat-drawn wire.For illustrated object and be not restriction, the diagrammatic representation of the heat-drawn wire data that provide in table 1 is provided Fig. 1.Especially, Fig. 1 demonstration is compared in contrast with pure HIPS, and heat-drawn wire increases along with the content of the mineral filler of polypropylene or high density polyethylene(HDPE) and talcum powder or four kinds of various combinations of calcium carbonate.
DTUL and the IM molding shrinkage of table 1.HIPS, PP, HDPE and mineral-filled mixture
1high-impact polystyrene, Tota l Petrochemicals940E
2high density polyethylene(HDPE), density=0.963g/cc
3pP homopolymer PP/ impact copolymer mixture, blending ratio 60/40
4pP impact copolymer
5pP homopolymer
6dTUL-is according to the texturing temperature of (66psi) under the load of ASTM D648
Data by table 1 and Fig. 1 can find out, the heat-drawn wire of pure high-impact polystyrene is 87 ℃, fall in the temperature range of coffee modulation and supply.The heat-drawn wire of the mixture of polypropylene copolymer or homopolymer polypropylene/multipolymer is about 79-80 ℃, the heat-drawn wire providing lower than the high-impact polystyrene by pure.Yet the heat-drawn wire that shows pure high density polyethylene(HDPE) is approximately 69 ℃, not in the lid of being made by pure high density polyethylene(HDPE) can be brought into play the temperature range of gratifying effect.
According to the disclosed theme of table 1, embodiment 1-20 has shown the heat-drawn wire of multiple polyolefine and mineral filler combination under different mineral filler levels.In different polyolefine and mineral filler combination, along with the increase of mineral content, calcium carbonate-filled polyolefine is not with respect to filling separately the polyolefine of (pure), and its heat-drawn wire increases gradually.By contrast, along with the increase of mineral filler content, the polyolefinic heat-drawn wire increasing degree of talc is larger.Unexpectedly, even if talcous content is low to moderate approximately 10%, the polyacrylic heat-drawn wire increase of talc is more remarkable.
Shown in the data of table 1 and Fig. 1, according to the heat-drawn wire of the heat-drawn wire of the polymer complex of disclosed theme and high-impact polystyrene quite, equate or larger.For example, in order to reach, equate with high-impact polystyrene or larger heat-drawn wire, for example, if mineral filler comprises the mineral (talcum powder) of high length-diameter ratio, described polymer complex can include as few as the mineral filler (referring to embodiment 12) of approximately 10 % by weight.In fact, as shown in Figure 1, when using polypropylene, only need to just can reach the heat-drawn wire identical with high-impact polystyrene even less than the talcum powder of 10 % by weight.By contrast, for example, if mineral filler comprises the mineral filler (calcium carbonate) of low length-to-diameter ratio, polymer complex can comprise at least about the mineral filler of 20 % by weight (referring to embodiment 17) and equating with high-impact polystyrene or larger heat-drawn wire to reach.
As described in Example 2, when polyolefine comprises high density polyethylene(HDPE), mineral filler comprises the mineral filler (for example talcum powder) of high length-diameter ratio, and polymer complex is while comprising the mineral filler at least about 20 % by weight, and its heat-drawn wire will be greater than the heat-drawn wire of high-impact polystyrene.As described in Example 10, when polyolefine comprises high density polyethylene(HDPE), mineral filler comprises low length-to-diameter ratio mineral filler (for example calcium carbonate), and polymer complex is while comprising the mineral filler at least about 50 % by weight, and its heat-drawn wire will be greater than the heat-drawn wire of high-impact polystyrene.As described in Example 12, when polyolefine comprises polypropylene, mineral filler comprises high length-diameter ratio mineral filler (for example talcum powder), and polymer complex is while comprising the mineral filler at least about 10 % by weight, and its heat-drawn wire will be greater than the heat-drawn wire of high-impact polystyrene.As described in Example 17, when polyolefine comprises polypropylene, mineral filler comprises low length-to-diameter ratio mineral filler (for example calcium carbonate), and polymer complex is while comprising the mineral filler at least about 20 % by weight, and its heat-drawn wire will be greater than the heat-drawn wire of high-impact polystyrene.
For object rather than the restriction of illustrating, table 1 and Fig. 2 have shown the shrinkage character of polypropylene, high density polyethylene(HDPE), high-impact polystyrene and mineral filled polypropylene and mineral-filled high density polyethylene(HDPE).Can, according to ASTM D955 (1996) standard, use according to this standard and the injection-molded rod that is of a size of 12.7mm * 3.2mm * 127mm well known in the art and measure shrinking percentage.Compare with high-impact polystyrene, mineral-filled polypropylene can overcome the shortcoming of polypropylene (pure) contraction mismatch, and therefore permission processes to prepare the parts of the similar shrinking percentage with approximately 0.5% to approximately 1.0% with existing high-impact polystyrene.For example, as shown in Figure 2, from the angle of shrinking percentage, the polypropylene of the talc that talcum powder content is 20-40% is applicable to replacing high-impact polystyrene.Similarly, compare with polypropylene, mineral-filled high density polyethylene(HDPE) can overcome the shortcoming that high density polyethylene(HDPE) shrinks mismatch, therefore allows to process to prepare with existing polypropylene to be similar to the mineral-filled high density polyethylene(HDPE) parts that polypropylene has approximately 1.25% to approximately 1.75% shrinking percentage.For example, as shown in Figure 2, from shrinking percentage angle, the high density polyethylene(HDPE) of the talc that talcum powder content is 30-50% is applicable to replacing pure polypropylene.
According on the other hand, the carbon footprint of this polymer complex is lower than high-impact polystyrene.For example, the greenhouse gas emission of this polymer complex is lower than high-impact polystyrene.For object rather than the restriction of illustrating, table 2 has shown with high-impact polystyrene lid to be compared, according to the lid of disclosed theme from being fabricated onto the greenhouse gas emissions of discarded whole length of life.As hot drink bowl cover, two kinds of lids have similar rigidity and the similar performance of performance.Comparative example is to be made by the high-impact polystyrene sheet material of approximately 0.0214 inch, and weight is about 3.83 grams.According to the embodiment of disclosed theme, comprise 40% talcum powder-filled polypropylene, its sheet material by 0.0167 inch is made, and weight is approximately 3.32 grams.Use is calculated greenhouse gas emission by the elementary cell of 10,000.Many factors causes significantly reducing according to the greenhouse gas emission of the embodiment of disclosed theme.These factors comprise the GHG discharge of density polymer, base polymer and mineral and the content of the mineral that mixture comprises.As can be seen from Figure 2, compare with the lid with similar performance of being made by high-impact polystyrene, the greenhouse gas emission of the polypropylene cap of talc reduces nearly 50%.
The greenhouse gas emission of the typical hot drink bowl cover of table 2.
Although herein describe the application from the angle of certain preferred embodiment, one of skill in the art will appreciate that and can make multiple modification or improvement not departing under the application's scope.For example, the application has described a kind of for the hot drink container disposable lid of coffee cup for example, according to the application's polymer complex, can be used in other the application of the heat-drawn wire that need to improve mineral-filled polymkeric substance except capping.Therefore, the application is intended to be included in additional claim and the modification in equivalent scope and variation.In addition, although this paper describes or shown the feature separately of an embodiment of the application in the accompanying drawing of an embodiment, and in other embodiment, do not show, but it should be understood that feature separately in an embodiment can combine with one or more features of another embodiment or from the feature of a plurality of embodiments.
Except the specific embodiment asking for protection below, the application is also for other the embodiment that may combine arbitrarily with the subsidiary characteristic of asking for protection below and above-mentioned disclosed feature.Equally, appended claims and above disclosed specific feature can combine mutually with the alternate manner within the application's scope, therefore should be appreciated that the application also can be especially for thering is any other embodiment that other may combine.Therefore, the foregoing description of the application's specific implementations is intended to illustrate and explain.It is not intended to the application is exhaustive or is limited in those disclosed embodiments.
Claims (25)
1. disposable lid, comprising:
The thermoset sheet material that is used for the lid shape of hot drink container, this sheet material comprises the polymer complex of polyolefine and at least one mineral filler;
Wherein, the thickness of this sheet material is less than approximately 0.035 inch, and heat-drawn wire is at least suitable with the heat-drawn wire of high-impact polystyrene.
2. disposable lid according to claim 1, wherein said heat-drawn wire is at least about the heat-drawn wire that equals high-impact polystyrene.
3. disposable lid according to claim 1, wherein according under bending load in the ASTM D648-06 standard testing method (2006) of the heat-drawn wire of the plastics of marginal position, described heat-drawn wire is at least approximately 87 ℃.
4. disposable lid according to claim 1, wherein said mineral filler comprises the mineral filler of high length-diameter ratio.
5. disposable lid according to claim 4, wherein said mineral filler selects the group of free talcum powder, mica, wollastonite or combinations thereof.
6. disposable lid according to claim 4, wherein said polymer complex comprises the mineral filler at least about 10 % by weight.
7. disposable lid according to claim 1, wherein said mineral filler comprises the mineral filler of low length-to-diameter ratio.
8. disposable lid according to claim 7, wherein said mineral filler comprises calcium carbonate.
9. disposable lid according to claim 7, wherein said polymer complex comprises the mineral filler at least about 20 % by weight.
10. disposable lid according to claim 1, wherein said polyolefine selects the group of free alfon, polypropylene impact copolymer, ethylene-propylene random copolymer, high density polyethylene(HDPE) or combinations thereof.
11. disposable lids according to claim 1, wherein said polyolefine comprises polypropylene, described mineral filler comprises the mineral filler of high length-diameter ratio, and described polymer complex comprises the mineral filler at least about 10 % by weight.
12. disposable lids according to claim 1, wherein said polyolefine comprises polypropylene, described mineral filler comprises the mineral filler of low length-to-diameter ratio, and described polymer complex comprises the mineral filler at least about 20 % by weight.
13. disposable lids according to claim 1, wherein said polyolefine comprises high density polyethylene(HDPE), described mineral filler comprises the mineral filler of high length-diameter ratio, and described polymer complex comprises the mineral filler at least about 20 % by weight.
14. disposable lids according to claim 1, wherein said polyolefine comprises high density polyethylene(HDPE), described mineral filler comprises the mineral filler of low length-to-diameter ratio, and described polymer complex comprises the mineral filler at least about 40 % by weight.
15. disposable lids according to claim 1, wherein said polyolefine comprises polypropylene, described mineral filler comprises the mineral filler of high length-diameter ratio, and the shrinking percentage of described polymer complex is suitable with the shrinking percentage of high-impact polystyrene.
16. disposable lids according to claim 15, while wherein measuring according to ASTM D955 standard (1996), the shrinking percentage of described polymer complex is approximately 0.5% to approximately 1.0%.
17. disposable lids according to claim 15, wherein said polymer complex comprises that approximately 20 % by weight are to the mineral filler of approximately 40 % by weight.
18. disposable lids according to claim 1, wherein said polyolefine comprises high density polyethylene(HDPE), described mineral filler comprises the mineral filler of high length-diameter ratio, and the shrinking percentage of described polymer complex is suitable with polyacrylic shrinking percentage.
19. disposable lids according to claim 18, while wherein measuring according to ASTM D955 standard (1996), the shrinking percentage of described polymer complex is approximately 1.25% to approximately 1.75%.
20. disposable lids according to claim 18, wherein said polymer complex comprises that approximately 30 % by weight are to the mineral filler of approximately 50 % by weight.
21. disposable lids according to claim 1, wherein said polymer complex is mainly comprised of polyolefine and at least one mineral filler.
22. disposable lids according to claim 1, wherein said polymer complex further comprises additive, the group that this additive selects free tinting material, processing aid and combination thereof to form.
23. disposable lids according to claim 1, wherein said hot drink container is coffee cup.
24. disposable lids according to claim 1, the carbon footprint of wherein said polymer complex is lower than high-impact polystyrene.
25. disposable lids according to claim 1, the greenhouse gas emission of wherein said polymer complex is lower than high-impact polystyrene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710185875.7A CN106905612A (en) | 2011-04-21 | 2012-04-18 | The disposable lid of the polymer complex with polyolefin and mineral filler |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161477886P | 2011-04-21 | 2011-04-21 | |
| US61/477,886 | 2011-04-21 | ||
| PCT/US2012/034018 WO2012145359A1 (en) | 2011-04-21 | 2012-04-18 | Disposable lid having polymer composite of polyolefin and mineral filler |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710185875.7A Division CN106905612A (en) | 2011-04-21 | 2012-04-18 | The disposable lid of the polymer complex with polyolefin and mineral filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103597018A true CN103597018A (en) | 2014-02-19 |
Family
ID=46025947
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280019637.4A Pending CN103597018A (en) | 2011-04-21 | 2012-04-18 | Disposable lid having polymer composite of polyolefin and mineral filler |
| CN201710185875.7A Pending CN106905612A (en) | 2011-04-21 | 2012-04-18 | The disposable lid of the polymer complex with polyolefin and mineral filler |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710185875.7A Pending CN106905612A (en) | 2011-04-21 | 2012-04-18 | The disposable lid of the polymer complex with polyolefin and mineral filler |
Country Status (8)
| Country | Link |
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| US (1) | US20120267368A1 (en) |
| EP (1) | EP2699630A1 (en) |
| JP (1) | JP2014512444A (en) |
| CN (2) | CN103597018A (en) |
| CA (1) | CA2832644A1 (en) |
| MX (1) | MX2013012104A (en) |
| TW (1) | TW201300229A (en) |
| WO (1) | WO2012145359A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2014512444A (en) | 2014-05-22 |
| TW201300229A (en) | 2013-01-01 |
| EP2699630A1 (en) | 2014-02-26 |
| CA2832644A1 (en) | 2012-10-26 |
| WO2012145359A1 (en) | 2012-10-26 |
| CN106905612A (en) | 2017-06-30 |
| US20120267368A1 (en) | 2012-10-25 |
| MX2013012104A (en) | 2014-05-27 |
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