1. A method for producing molded objects provided with a printed decorative pattern,
(i) wherein, in a first step, a printed or decorative plastic film comprising a printing or decorative pattern is permanently joined to a plate-shaped metal substrate, wherein initially the plastic film andor the metal substrate is or are loaded with a bonding agent in the form of a radiation cross-linking reactive adhesive and wherein then the plastic film and the metal substrate are brought together, such that the plastic film is joined permanently with the metal substrate and in this way is laminated onto the metal substrate, thus resulting in a composite material, and
(ii) wherein subsequently the composite material made from the printed or decorative plastic film and metal substrate is shaped into a three-dimensionally shaped molded object by a shaping process which is selected from the group consisting of deep-drawing, draw-forming, stretch-forming, non-cutting forming, bending, embossing and stamping, wherein the printing or decorative pattern comprised by the plastic film is protected during the shaping process.
2. The method of claim 1 wherein loading the plastic film andor the metal substrate with the bonding agent includes a step of applying the bonding agent over the metal substrate so that the plastic film is joined over the entire area of the substrate.
3. The method of claim 1 which further includes a step of applying a clamping force while applying heat.
4. The method of claim 1 wherein the initial step of loading the plastic film andor the metal substrate with the bonding agent includes a step of applying the bonding agent on two sides of the metal substrate.
5. The method of claim 1, wherein the method is performed continuously and in an automated way, wherein the plastic film and the metal substrate to be joined with the plastic film are brought together and joined with each other continuously after applying the adhesive by means of continuously moving transport devices.
6. The method of claim 1, wherein the initial step of loading of the plastic film andor the metal substrate is performed with the bonding agent over the entire area and homogeneously with a uniform layer thickness of the bonding agent.
7. The method of claim 1, wherein the bonding agent is applied in a quantity of 0.1 to 50 gm2 and with a layer thickness of 0.001 to 1 mm.
8. The method of claim 1, wherein the initial step of applying the bonding agent is performed by means of apparatuses selected from the group consisting of nozzles, spraying devices, doctor blades, and cylinders.
9. The method of claim 1, wherein the bonding agent is a solvent-free hot-melt adhesive.
10. The method of claim 9, wherein the hot-melt adhesive has a Brookfield viscosity value in the range of 50 to 1,000,000 mPa\xb7s at processing temperatures in the range of 90\xb0 C. to 200\xb0 C.
11. The method of claim 9, characterized in that the hot-melt adhesive is based on a silane-grafted polyolefin.
12. The method of claim 9, wherein the hot-melt adhesive contains at least one catalyst selected from the group consisting of organic tin compounds, alkyl mercaptide compounds of the dibutyltin, organic iron, lead, cobalt, bismuth, antimony, and tin compounds.
13. The method of claim 9, wherein the hot-melt adhesive contains at least one additive selected from the group consisting of softeners, high boiling-point organic oils, esters, stabilizers, antioxidants, acid scavengers, fillers, and anti-aging agents used for plastifying.
14. The method of claim 1, wherein a non-reactive resin is added to the adhesive, said non-reactive resin being selected from the group consisting of hydrocarbon resins, aliphatic, cyclic, or cycloaliphatic hydrocarbon resins, colophonium resins, terpene phenol resins, coumarone-indene resins, a-methyl styrene resins, polymerized tall resin esters, and ketone aldehyde resins.
15. The method of claim 1, wherein a non-reactive wax is added to the adhesive, said non-reactive wax being selected from the group consisting of polyolefin waxes, polyethylene and polypropylene waxes, and waxes modified on this basis.
16. A method for producing molded objects provided with a printed decorative pattern,
(i) wherein, in a first step, a printed or decorative plastic film comprising a printing or decorative pattern is permanently joined to a plate-shaped metal substrate, wherein initially the plastic film andor the metal substrate is or are loaded with a bonding agent in the form of a radiation cross-linking reactive adhesive and wherein then the plastic film and the metal substrate are brought together, such that the plastic film is joined permanently with the metal substrate and in this way is laminated onto the metal substrate, thus resulting in a composite material, and
(ii) wherein subsequently the composite material made from the printed or decorative plastic film and metal substrate is shaped into a three-dimensionally shaped molded object by a shaping process which is selected from the group consisting of deep-drawing, draw-forming, stretch-forming, non-cutting forming, bending, embossing and stamping.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A preparation method of an oxygen-selective adsorbent selectively adsorbing oxygen in the air, the preparation method comprising:
preparing BaMg(CO3)2 particles or particles in which MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3)2; and
sintering the particles at 700 to 800\xb0 C. under hydrogen atmosphere.
2. The preparation method of claim 1, wherein in the particles in which MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3 ) MgCO3 or Mg(OH)2 are attached to the outside of BaMg(CO3)2 at a molar ratio of 1to 10based on BaMg(CO3)2.
3. The preparation method of claim 1, wherein the BaMg(CO3)2 particles are prepared by dispersing a mixture of a compound containing barium and carbonate in distilled water and adding a magnesium carbonate precursor thereto.
4. The preparation method of claim 3, wherein the compound containing barium is BaCO3 or BaCl2.
5. The preparation method of claim 3, wherein the carbonate is Na2CO3.
6. The preparation method of claim 3, wherein the magnesium carbonate precursor is Mg(NO3)2 \xb76H2O or MgCO3 \xb73H2O.
7. The preparation method of claim 1, wherein the particles in which MgCO3 or Mg(OH)2are attached to the outside of BaMg(CO3)2, are prepared by dispersing a mixture of a compound containing barium and carbonate in distilled water, adding a magnesium carbonate precursor thereto to obtain particles, filtering and washing the obtained particles, dispersing the washed particles in distilled water again, adding the magnesium carbonate precursor thereto, performing a ultrasonic treatment, and then adding aqueous ammonia thereto.
8. The preparation method of claim 7, wherein the compound containing barium is BaCO3 or BaCl2.
9. The preparation method of claim 7, wherein carbonate is Na2CO3.
10. The preparation method of claim 7, wherein the magnesium carbonate precursor is Mg(NO3)2\xb76H2O or MgCO3.3H23\xb73H2O.