Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/02—Compounds of alkaline earth metals or magnesium
  • C09C1/027—Barium sulfates
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/18—Manufacture of films or sheets
• • 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
  • C08K9/00—Use of pretreated ingredients
  • C08K9/04—Ingredients treated with organic substances
  • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
  • C01P2006/62—L* (lightness axis)
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
  • C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
  • C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
  • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy 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
  • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
  • C08K2003/3045—Sulfates
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
  • C09C3/12—Treatment with organosilicon compounds

Definitions

• BaS0 4 is produced by the precipitation of BaCI 2 or Ba(OH) 2 with Na 2 S0 4 or H 2 S0 4 .
• n is an integer from 10 to 100, preferably 20 to 60;
• a polysiloxane of the general Formula I or mixtures thereof can be used for treating the barium sulfate particles, wherein R 4 and R 8 are the same or different and each of R 4 and R 8 bears an epoxy group.
• a polysiloxane of the general Formula I or mixtures thereof can be used for treating the barium sulfate particles
• the inorganic surface modification of the barium sulfate typically consists of at least one inorganic compound selected from aluminium, antimony, barium, calcium, cerium, chlorine, cobalt, iron, phosphorus, carbon, manganese, oxygen, sulfur, silicon, nitrogen, strontium, vanadium, zinc, tin and/or zirconium compounds or salts.
• Sodium silicate, sodium aluminate and aluminium sulfate are cited by way of example.
• the organically surface-modified barium sulfate particles optionally have one or more functional groups, for example one or more hydroxyl, amino, carboxyl, epoxy, vinyl, methacrylate and/or isocyanate groups, thiols, alkyl thiocarboxylates, di- and/or polysulfide groups.
• one or more functional groups for example one or more hydroxyl, amino, carboxyl, epoxy, vinyl, methacrylate and/or isocyanate groups, thiols, alkyl thiocarboxylates, di- and/or polysulfide groups.
• the present invention also provides a method for producing a coated barium sulfate according to the present invention comprising the step of treating barium sulfate particles with at least one polysiloxane of the general Formula I or mixtures thereof,
• R 1 to R 7 may be the same or different and are selected from the group consisting of:
• the intrinsic viscosity of the material is found by extrapolating to zero concentration of relative viscosity to concentration which is measured in deciliters per gram (dt/g). Intrinsic viscosity is dependent upon the length of its polymer _ - chains but has no units due to being extrapolated to zero concentration. The longer the polymer chains the more entanglements between chains and therefore the higher the viscosity. The average chain length of a particular batch of resin can be controlled during polycondensation.
• a masterbatch of PET (Typ RT6020 from Invista Resin & Fibers GmbH) with the product is prepared in the application laboratory.
• the dispersibility is verified by the internal DF test (pressure filter test) and the resulting PET Masterbatch chips are analyzed by the color index (Lab color- test) and the viscosity test to determine the intrinsic viscosity of the polymer (Polymer IV).
• Controlling the dispersion of the masterbatch chips as prepared is made in line with DIN 13900-5 with a pressure filter test.
• the material is pressed at a temperature of approximately 280 °C under constant pressure (50 bar) by means of a twin-screw extruder at 40 rpm through a 17 ⁇ filter on a supporting fabric.
• the pressure increase due to non-passing material is measured.
• the pressure increase may not be above 20 bar per 5 kg master batch (MB) over the whole test.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Manufacturing & Machinery (AREA)
• Health & Medical Sciences (AREA)
• Engineering & Computer Science (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Materials Engineering (AREA)
• Pigments, Carbon Blacks, Or Wood Stains (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Processes Of Treating Macromolecular Substances (AREA)
• Manufacture Of Macromolecular Shaped Articles (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

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Cited By (2)

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Citations (5)

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• 2017
  • 2017-07-05 EP EP17179878.8A patent/EP3425009A1/en not_active Withdrawn
• 2018
  • 2018-06-01 WO PCT/EP2018/064489 patent/WO2019007598A1/en not_active Ceased
  • 2018-06-01 EP EP18727823.9A patent/EP3649200A1/en not_active Withdrawn
  • 2018-06-01 CN CN201880044197.5A patent/CN110832035A/zh active Pending
  • 2018-06-01 JP JP2019572638A patent/JP2020525625A/ja active Pending
  • 2018-06-11 TW TW107119944A patent/TW201906911A/zh unknown

Patent Citations (5)

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