CN117280060A - 5xxx aluminum plate for can making - Google Patents

Abstract

The invention relates to a 5xxx series aluminum plate made of an alloy, in terms of weight percentage, the alloy contains: Mg: 2.5-4.0, Mn: 0.7-1.2, Fe: 0.25-0.55, Si: 0.20-0.50, Cu : 0.10‑0.25, Cr: up to 0.1, Zn: up to 0.25, Ti: up to 0.1, the remainder is aluminum and unavoidable impurities, each impurity up to 0.05 and the total amount up to 0.15. The method for preparing the 5xxx series aluminum plate of the present invention includes the following steps: casting an ingot having the composition of the present invention, preheating the ingot, rough hot rolling on a reversing rolling mill at a rough hot rolling entry temperature higher than 440°C, to The ingots are finish hot rolled at a hot rolling exit temperature of at least 300°C and cold rolled to obtain cold rolled plates. The invention also relates to can ends and beverage cans.

Description

5xxx aluminum plate for can making

Technical field

The present invention relates to 5xxx series alloy aluminum plates that are particularly suitable for the can-making industry and their preparation methods.

Background technique

Recognized as an efficient and environmentally friendly beverage packaging solution, aluminum beverage cans are extremely popular.

To keep _CO2 emissions to a minimum, can manufacturers are taking action to reduce the weight of can bodies and can ends and trying to increase the amount of their solutions that can be recycled. It is worth emphasizing that using 1 ton of scrap instead of 1 ton of primary metal reduces _CO2 emissions by 10 tons.

Regarding the can end, also known as the lid, can manufacturers have gradually reduced the can end diameter from 68.3mm to 54mm and then 50.8mm using optimized designs. The combination of the smaller diameter and the new can end design made it possible to reduce the thickness from 223 μm to approximately 203 μm and the associated significant weight reduction.

However, in the past few years, can end lightweighting has reached a "plateau" and it is now increasingly difficult to reduce thickness to less than 200μm.

The alloy used to make can ends is typically alloy AA5182. Due to its high mechanical properties, AA5182 requires a high level of purity (e.g. Fe, Si) to obtain the necessary molding properties. This high level of purity in AA5182 limits the amount of it that can be recycled and means that the production of AA5182 can ends relies on primary aluminum. The more primary aluminum used, the greater the significant _CO2 emissions.

Since the amount of metal in the can body is greater than the amount of metal in the can end, it is also preferred to have the possibility of recycling the can end together with the can body. Specific can end and body alloys have been developed for this purpose.

Patent application WO2013/103957A2 discloses an aluminum alloy and a recycling method, wherein the recycled used beverage containers form an alloy composition whose composition can be used as body stock with less adjustment.

Patent application WO2014/107188A1 discloses an aluminum alloy and a recycling method, wherein the recycled used beverage containers form an alloy composition with little or no adjustment to the composition other than the magnesium level, which can be used Stock for cans, ends and tabs for hand pulls.

Patent application WO2015/200570A2 discloses 3xxx aluminum alloys, in particular AA3104 and AA3204 aluminum alloys, for the manufacture of can ends and small tabs for can opening.

Patent application WO2016/002226A1 discloses an aluminum alloy plate for beverage cans, which contains 0.20-0.45% Si, 0.35-0.60% Fe, 0.1-0.3% Cu, 0.5-1.5% by mass. Mn, 0.8-1.5% Mg, 0.1% or less Ti, 0.05% or less B, and the rest is supplemented by Al and inevitable impurities.

Patent US 5746847 A discloses an aluminum alloy for can ends, which contains in weight percentage: 3.0-4.0% Mg, 0.5-1.0% Mn, 0.2-0.6% Cu, 0.05-0.4% Fe and unavoidable Impurities.

Patent application JP H11 269594A discloses an aluminum alloy for can ends, containing in weight percentage: 0.6-1.2% Mn, 0.5-3.2% Mg, 0.2-0.5Si, 0.3-0.5% Cu, 0.3-0.6 % Fe, the rest is Al and unavoidable impurities.

Patent application US2018/274072 A1 discloses several compositions for recycling aluminum, adapted for example to be suitable for the preparation of beverage cans.

The can industry needs improved aluminum sheet products to manufacture such can ends that combine a careful balance between different criteria: strength, formability and high recyclability.

Contents of the invention

The first object of the present invention is an aluminum plate made of 5xxx series aluminum plates. In terms of weight percentage, the aluminum plate contains:

Mg: 2.50-4.00,

Mn: 0.70-1.20,

Fe: 0.25-0.55,

Si: 0.20-0.50,

Cu: 0.10-0.25,

Cr: up to 0.10,

Zn: up to 0.25,

Ti: up to 0.10,

The remainder is aluminum and unavoidable impurities, up to a maximum of 0.05 each and a maximum of 0.15 in total.

Another object of the present invention is a method for preparing 5xxx series aluminum plates according to the present invention, which includes the following consecutive steps:

- casting ingots having the composition of the invention,

- preheating the ingot, typically at a temperature of 440°C to 550°C,

- rough hot rolling of said ingot on a reversing rolling mill at a rough hot rolling entry temperature above 440°C,

- finishing hot rolling the ingot with a hot rolling exit temperature of at least 300°C,

-Cold rolling to obtain cold rolled plates,

- optionally coating said cold rolled plate

Yet another object of the invention is the can end obtained from the plate of the invention.

Yet another object of the invention is a beverage can obtained from the can end of the invention and the can body made of AA3xxx alloy.

Detailed ways

Unless otherwise mentioned, all aluminum alloys mentioned below are named using the rules and names defined by the Aluminum Association in the regularly published Registration Record Series.

The metallurgical temper mentioned below is named using the European standard EN-515 (April 2017).

All alloy ingredients are provided as weight percent (wt%). The expression "7.9Mn" means the manganese content in weight percent multiplied by 7.9.

Tensile testing was performed according to ISO/DIS 6892-1 (July 2014).

The inventors have discovered improved 5xxx aluminum alloy plates that combine a careful balance between different criteria: strength, formability and high recyclability.

The Mg content is 2.50% to 4.00% by weight, preferably 2.50% to 3.85% by weight, more preferably 3.10% to 3.85% by weight, even more preferably 3.10% to 3.65% by weight.

Mg is the main alloying element of the alloy and it contributes to strength improvement. When the Mg content is less than 2.50% by weight, strength improvement may be insufficient. On the other hand, a content exceeding 4.00% by weight may result in low formability. A minimum Mg content of 3.00% by weight or 3.05% by weight or 3.10% by weight or 3.15% by weight or 3.20% by weight or 3.25% by weight or 3.30% by weight or 3.35% by weight or 3.40% by weight may be advantageous. A maximum Mg content of 3.85% by weight or 3.80% by weight or 3.75% by weight or 3.70% by weight or 3.65% by weight or 3.60% by weight may be advantageous.

Mn is also an effective element for strength improvement, grain refinement and structural stabilization. The Mn content is 0.70% to 1.20% by weight, preferably 0.80% to 1.15% by weight and more preferably 0.90% to 1.10% by weight, and even more preferably 0.92% to 0.98% by weight.

When the Mn content is less than 0.70% by weight, the above effects are insufficient. On the other hand, Mn content exceeding 1.20% by weight will not only lead to the saturation of the above effects, but also the generation of various intermetallic compounds, which will adversely affect formability. Furthermore, in one embodiment, the Mn content of the present invention ensures maximum addition of recycled waste, and more particularly UBC (Used Beverage Can) waste during the casting step. A minimum Mn content of 0.76% by weight or 0.78% by weight or 0.80% by weight or 0.85% by weight or 0.90% by weight or 0.91% by weight or 0.92% by weight or 0.93% by weight may be advantageous. A maximum Mn content of 1.15% by weight or 1.10% by weight or 1.05% by weight or 1.00% by weight or 0.98% by weight or 0.96% by weight may be advantageous.

Control of Fe and Si is key to achieve the desired properties of the panels of the invention, particularly the balance between formability and recyclability. The Fe content is 0.25% to 0.55% by weight and preferably 0.30% to 0.40% by weight.

Fe contents below 0.25 wt% may not produce sufficient effects, while Fe contents above 0.55 wt% may lead to molding difficulties, which are related to the formation of large Al ₆ MnFe primary phases. A minimum Fe content of 0.28% by weight or 0.30% by weight or 0.31% by weight may be advantageous. A maximum Fe content of 0.45% by weight or 0.40% by weight or 0.38% by weight may be advantageous.

The contents of Mn and Mg are preferably related to the Fe content. Preferably, the sum of Mg+7.9Mn is at most 11.4% by weight, preferably at most 10.7% by weight and more preferably at most 10.1% by weight for an Fe content of at least 0.50% by weight; for an Fe content of at least 0.44% by weight (and for Fe content of at least 0.40 wt% (and less than 0.44 wt%), Mg The sum of +7.9Mn is at most 12.5% by weight, preferably at most 11.8% by weight and more preferably at most 11.2% by weight; for an Fe content of at least 0.35% by weight (and less than 0.40% by weight) the sum of Mg+7.9Mn is at most 12.8% by weight, preferably at most 12.1% by weight and more preferably at most 11.5% by weight; for an Fe content of at least 0.30% by weight (and less than 0.35% by weight), the sum of Mg+7.9Mn is at most 13.1% by weight, preferably at most 12.4% by weight and more preferably at most 11.8% by weight; for an Fe content of at least 0.25% by weight (and less than 0.30% by weight) the sum of Mg+7.9Mn is at most 13.5% by weight, preferably at most 12.8% by weight and more preferably Up to 12.2% by weight. In a preferred embodiment, the Fe content is from 0.30 to 0.40% by weight and the sum of Mg+7.9Mn is from 8.0 to 12.5% by weight, preferably from 9.4 to 11.8% by weight and more preferably from 10.2 to 11.8% by weight. 11.2% by weight. In particular, the claimed Fe, Mn and Mg contents ensure maximum addition of recycled scrap, and more particularly UBC scrap, during the casting step.

The Si content is 0.20% to 0.50% by weight and preferably 0.22% to 0.35% by weight and more preferably 0.23% to 0.30% by weight. Excessive addition of Si may produce more Mg ₂ Si phase, which can adversely affect formability. A minimum Si content of 0.21% or 0.22% or 0.23% or 0.24% by weight may be advantageous. A maximum Si content of 0.40% by weight or 0.35% by weight or 0.30% by weight or 0.28% by weight may be advantageous.

The Cu content is 0.10% to 0.25% by weight and preferably 0.10% to 0.20% by weight, more preferably 0.12% to 0.20% by weight. A minimum Cu content of 0.11 wt% or 0.12 wt% or 0.13 wt% or 0.14 wt% may be advantageous since Cu in solid solution may be beneficial to strength and/or formability. A maximum Cu content of 0.25 wt% or 0.20 wt% or 0.18 wt% may be advantageous since the formation of Cu-containing phases may adversely affect formability. In one embodiment, the Cu content is 0.14 to 0.18 wt%.

The Cr content is up to 0.10% by weight, preferably up to 0.05% by weight. In one embodiment, some Cr may be added to improve strength, refine grains and stabilize the structure, with the content ranging from 0.01% to 0.05% by weight, preferably from 0.01% to 0.03% by weight.

Zn may be added in an amount up to 0.25% by weight and preferably up to 0.20% by weight or up to 0.15% by weight without departing from the advantages of the invention. In one embodiment, Zn is an unavoidable impurity.

Grain refiners including Ti are typically added with a total Ti content of up to 0.10% by weight and preferably from 0.005 to 0.05% by weight, even more preferably from 0.01 to 0.03% by weight. In one embodiment, the Ti content is 150 ppm to 250 ppm.

The balance is aluminum and unavoidable impurities, up to 0.05% by weight each and up to 0.15% by weight in total.

According to the present invention, the 5xxx series aluminum alloy of the present invention is used to prepare ingots by casting, typically direct-chill casting or continuous casting. Preferably, the casting step involves melting the recycled scrap material into liquid metal.

As used herein, the term recycled scrap (eg, recycled feedstock) may refer to a collection of recycled metals containing primarily aluminum, preferably at least 60% or 70% or 80% or 90% aluminum. Recycled scrap may comprise materials recovered from any suitable source, such as from a metal production facility (e.g., a metal casting facility), from a metal processing facility (e.g., a production facility that uses metal products to create consumable products), or from post-consumer sources (e.g., regional recycling facility). Certain aspects of the present disclosure may be well suited for recycled scrap from sources other than metal production facilities, as such recycled scrap may contain a mixture of alloys or mixed with other impurities or elements (eg, paint or coatings). Recycled scrap may refer to recycled sheet aluminum products (e.g., aluminum pots and pans, vehicle interior and exterior products), recycled cast aluminum products (e.g., aluminum grills and rims), UBC scrap (e.g., beverage cans), aluminum Wire, extruded materials and other aluminum materials.

Preferably, the recycled scrap metal includes used beverage can (UBC) scrap, which is metal collected from used beverage cans and similar products that can be recycled into other metal products. Aluminum UBC scrap is often a mixture of various aluminum alloys (e.g., from different alloys used for can bodies and can ends), and can often contain foreign matter such as rainwater, beverage residues, organic matter (e.g., paint and laminate films) and other materials. The UBC scrap can be reduced to chips and stripped or delacquered, then melted as a liquid metal feedstock for casting the new metal products of the invention. Due to the presence of impurities and unbalanced alloying elements in liquid UBC metal, it may be necessary to treat the liquid UBC metal to remove unwanted elements or to combine the liquid UBC metal with a sufficient amount of new primary aluminum prior to casting. Similarly, scrap recycled from other sources may contain relatively high amounts of impurities and/or unbalanced alloying elements.

The amount of recycled waste in the product according to the invention is described here. For example, alloys according to the present invention may be allowed to comprise more than about 50 wt%, about 60 wt%, about 70 wt%, about 80 wt%, about 85 wt%, about 90 wt%, about 91 wt%, about 92 wt% %, about 93 wt%, about 94 wt%, about 95 wt%, about 96 wt%, about 97 wt%, about 98 wt%, or about 99 wt% modified liquid metal from the recycled scrap to prepare a suitable casting product. In other words, the cast products described herein may comprise less than about 50% by weight, about 40% by weight, about 30% by weight, about 20% by weight, about 15% by weight, about 10% by weight, about 9% by weight, about 8% by weight, About 7% by weight, about 6% by weight, about 5% by weight, about 4% by weight, about 3% by weight, about 2% by weight, about 1% by weight of primary aluminum and optional hardener (including, for example, Al+Cu, Master alloys of Al+Si, Al+Mn, Al+Fe, etc. or pure metals such as Cu, Mg, Zn, etc.). Certain aspects of the present disclosure relate to metal products made using modified liquid metal that is primarily recycled scrap. Preferably, the recycled scrap includes recycled aluminum scrap, such as UBC scrap. UBC scrap, for example, typically contains a mixture of metals from various alloys, such as metal from the can body (e.g., 3104, 3004, or other 3xxx aluminum alloys) and metal from the can ends (e.g., 5182 or other 5xxx aluminum alloys). Due to the Mg and Mn content, the composition of the alloy of the invention is particularly suitable for recycling UBC scrap. Preferably, the recycled scrap melted in the method of the present invention contains more than about 50 wt%, about 60 wt%, about 70 wt%, about 80 wt%, about 90 wt%, about 91 wt%, about 92 wt%, about 93 wt%, about 94 wt%, about 95 wt%, about 96 wt%, about 97 wt%, about 98 wt%, or about 99 wt% UBC scrap. Adding primary aluminum reduces the amount of recycled content and increases costs and greenhouse gas emissions because primary aluminum is more expensive to produce and produces more greenhouse gases than recycled scrap. Therefore, there is often a trade-off between processing recycled scrap and adding primary aluminum. Using the inventive alloys described herein, recycled scrap can be used with little or no purification and with little or no addition of primary aluminum and optional hardeners.

The ingot thickness is preferably at least 250 mm, or at least 350 mm, and very thick gauge ingots with a thickness of at least 400 mm, or even at least 500 mm or 600 mm are preferred to increase the productivity of the process. Preferably the width of the ingot is 1000 to 2000mm and the length is 2000 to 8000mm. Preferably the tablets are peeled.

The ingot is then preheated, typically at a temperature of 440°C to 550°C, and hot rolled to obtain a sheet with a thickness typically between 2 and 12 mm. Preferably, the sheet is hot rolled in two consecutive steps, for example a first hot rolling step on a reversing mill, also called a roughing mill, to a thickness typically between 12 and 40 mm, and a tandem rolling mill A second hot rolling step is carried out on - also called a finishing mill - until the thickness is typically between 2 and 12 mm. A tandem mill is a roller mill in which several cage-supported rollers, typically 2, 3, 4 or 5, operate continuously ("in tandem"). According to the invention, the hot rough rolling on the reversing mill is carried out at a hot rough rolling entry temperature higher than 440°C and preferably higher than 460°C. The first step carried out on a reversing rolling mill can be carried out on one or even two reversing rolling mills placed one after another.

In the second hot rolling step, the final temperature, which is the hot rolling exit temperature, should be at least 300°C, preferably at least 330°C. Therefore, preferably, the hot rolled plate obtained after finishing hot rolling has at least 50% and preferably A volume fraction of recrystallized grains of at least 80%.

Cold rolling is carried out directly after the hot rolling step to further reduce the thickness of the aluminum sheet. For the method of the present invention, annealing after hot rolling or during cold rolling is optional, since this step does not appear to be necessary to obtain sufficient strength, formability, surface quality and corrosion resistance. Preferably no annealing is performed after hot rolling or during cold rolling. The plate obtained directly after cold rolling is called cold rolled plate. The thickness of the cold rolled plate is typically 0.15 to 0.30 mm, and preferably 0.18 to 0.23 mm.

In one embodiment, the cold rolling reduction is at least 80%, or at least 85%.

Cold rolled plates are preferably coated. In one coating method, cold rolled plate is cleaned and chemically treated, optionally dried in an oven, optionally primed, coated and thermally (oven) cured to form a coated plate. In another coating method, cold rolled plate is cleaned and chemically treated and coated with a suitable (e.g., food grade) electron beam ("EB") and/or ultraviolet ("UV") curable coating composition. cloth, and perform EB or UV curing to form a coated plate.

Preferably, the coating is a coating or laminate that does not contain BPA or BPA-NI (does not contain bisphenol-A or does not actively add bisphenol-A).

The product of the present invention preferably has a tensile yield strength (TYS) in the long transverse (LT) direction of 320 to 380 MPa and preferably 320 to 360 MPa after simulated paint baking at 205°C for 20 minutes.

Formability is the ability of a sheet to be formed into a specific shape. Formability is specifically related to the tensile yield strength (TYS or Rp0.2): as TYS increases, formability generally decreases. According to a preferred embodiment, the TYS of the board according to the present invention is less than or equal to 380MPa in the H48 state, preferably less than or equal to 360MPa, or simulates paint baking after heat treatment at 205°C for 20 minutes and obtains mechanical properties similar to those in the H48 state mechanical properties. According to another preferred embodiment, the TYS of the plate according to the present invention is greater than or equal to 320MPa in the H48 state, or simulates the baking of the paint after heat treatment at 205°C for 20 minutes. This minimal TYS allows for adequate strength as well as resistance to internal pressure.

Preferably, the product of the invention is in the H4X metallurgical state as defined by European standards EN-515 (April 2017) and EN 541 (May 2007).

According to these standards, the H4X metallurgical condition describes strain-hardened and painted or painted products. H4X is therefore the state of the material obtained after work hardening and coating, during which a certain level of recovery may occur. The preferred temper is the H48 temper, which is assigned to the hardest H4X temper commonly prepared. After simulating coating baking at 205°C for 20 minutes, H48 mechanical properties can be obtained from cold-rolled plates in H18 or H19 conditions.

In particular, the H48 metallurgical condition ensures the shaping of the metal to make the can ends of beverage cans. Preferably, the 5xxx series aluminum plates according to the invention are coated and preferably in the H48 condition.

The invention also relates to a can end obtained from the plate of the invention and a beverage can obtained from the can end of the invention and a can body made of AA3xxx alloy.

It is advantageous to use 5xxx series aluminum plates according to the invention for preparing can ends. In particular, it is advantageous to use the can end according to the invention in combination with a can body made of AA3xxx alloy, since such beverage cans are easy to recycle, and the can body is preferably made of an alloy selected from: AA3002, AA3102, AA3003, AA3103, AA3103A, AA3103B, AA3203, AA3403, AA3004, AA3004A, AA3104, AA3204, AA3304, AA3005, AA3005A, AA3105, AA3105A, AA3105B, AA3007, AA3107, AA3207, AA3207A, AA33 07, AA3009, AA3010, AA3110, AA3011, AA3012, AA3012A, AA3013, AA3014, AA3015, AA3016, AA3017, AA3019, AA3020, AA3021, AA3025, AA3026, AA3030, AA3130 and AA3065, most preferably made of an alloy selected from AA3004, AA3004A and AA3104.

Example

In this example, several ingots were cast by the direct chill casting technique from alloys having the compositions disclosed in Table 1.

【Table 1】

The composition of the alloy is expressed in weight % or ppm (Ti)

Alloys D, E and F are not according to the invention because they contain too much Cu (more than 0.25 wt% Cu).

The TYS in the LT direction in the H48 state was evaluated by computer software. The results are provided in Table 2.

【Table 2】

Mechanical behavior.

Claims (12)

1. A 5xxx series aluminum sheet made from an alloy comprising, in weight percent:

Mg：2.50-4.00，

Mn：0.70-1.20，

Fe：0.25-0.55，

Si：0.20-0.50，

Cu：0.10-0.25，

cr: up to 0.10 of the total number of the components,

zn: up to 0.25 of the total number of the components,

ti: up to 0.10 of the total number of the components,

the balance being aluminium and unavoidable impurities, each impurity being up to 0.05 and the total amount being up to 0.15.

2. A 5xxx series aluminium plate according to claim 1, wherein the Mg content is from 2.50 to 3.85 wt%, preferably from 3.10 to 3.85 wt%, more preferably from 3.10 to 3.65 wt%.

3. The 5xxx series aluminum panel of any of claims 1-2, wherein the Mn content is from 0.90 wt.% to 1.10 wt.%.

4. A 5xxx series aluminium sheet according to any one of claims 1 to 3, wherein the Cr content is from 0.01 wt% to 0.03 wt%.

5. The 5xxx series aluminum panel of any of claims 1-4, wherein for a Fe content of at least 0.50 wt%, the sum of mg+7.9mn is at most 11.4 wt%, preferably at most 10.7 wt% and more preferably at most 10.1 wt%; for Fe contents of at least 0.44 wt% (and less than 0.50 wt%) the sum mg+7.9mn is at most 12.1 wt%, preferably at most 11.4 wt% and more preferably at most 10.8 wt%; for Fe contents of at least 0.40 wt% (and less than 0.44 wt%) the sum mg+7.9mn is at most 12.5 wt%, preferably at most 11.8 wt% and more preferably at most 11.2 wt%; for Fe contents of at least 0.35 wt% (and less than 0.40 wt%) the sum mg+7.9mn is at most 12.8 wt%, preferably at most 12.1 wt% and more preferably at most 11.5 wt%; for Fe contents of at least 0.30 wt% (and less than 0.35 wt%) the sum mg+7.9mn is at most 13.1 wt%, preferably at most 12.4 wt% and more preferably at most 11.8 wt%; for Fe contents of at least 0.25 wt% (and less than 0.30 wt%), the sum mg+7.9mn is at most 13.5 wt%, preferably at most 12.8 wt% and more preferably at most 12.2 wt%.

6. A 5xxx series aluminium sheet according to any one of claims 1 to 5, which is coated and preferably in the H48 state.

7. The 5xxx series aluminum sheet of any of claims 1-6, having a Tensile Yield Strength (TYS) of less than or equal to 360MPa.

8. A method of making a 5xxx series aluminum sheet according to any of claims 1 to 7, comprising the following sequential steps:

casting an ingot having a composition according to any one of claims 1 to 5,

preheating the ingot typically at a temperature of 440 to 550 ℃,

rough hot rolling on a reversing mill at a rough hot rolling inlet temperature of greater than 440 ℃,

finish hot rolling the ingot at a hot rolling outlet temperature of at least 300 ℃,

cold-rolling to obtain a cold-rolled sheet,

-optionally coating the cold rolled sheet.

9. The method of claim 8, wherein the liquid metal comprises greater than about 50% by weight recycled scrap.

10. The method of claim 9, wherein the recycled waste comprises more than about 50% by weight of used beverage can waste.

11. Can end obtained from a panel according to any one of claims 1 to 7.

12. Beverage can obtained from a can end according to claim 11 and a can body made of an AA3 xxx-alloy, preferably a can body made of an alloy selected from the group consisting of: AA3002, AA3102, AA3003, AA3103A, AA, 3103B, AA, AA3403, AA3004A, AA3104, AA3204, AA3304, AA3005A, AA3105, AA3105A, AA3105B, AA3007, AA3107, AA3207A, AA3307, AA3009, AA3010, AA3110, AA3011, AA3012, AA A, AA3013, AA3014, AA3015, AA3016, AA3017, AA3019, AA3020, AA3021, AA3025, AA3026, AA3030, AA3130, and AA3065, most preferably selected from AA3004, AA3004A, and AA3104.