EP2132284A2

Additive formulation suited for anti-static finishing and improvement of the electrical conductivity of inanimate organic material

Abstract

The invention relates to an additive formulation for the anti-static finishing and improvement of the electrical conductivity of inanimate organic material made of (A) 1 to 50% by weight of an olefin-sulfur dioxide copolymer, (B) 1 to 50% by weight of a compound having alkaline nitrogen atoms with longer-chained hydrocarbon groups with at least 4 carbon atoms or an equivalent structural element, which ensures the solubility of (B) in the inanimate organic material, (C) 0.1 to 30% by weight of an acid soluble in oil, and (D) 1 to 80% by weight of an organic solvent with a high boiling point, wherein at least 80% by weight of the molecule types have a boiling point that is higher than 150ºC at normal pressure.

Term

1.4 yearsto projected expiry

Projected expiry 28 February 2028, counted from filing; an application has no term until it is granted.

  1. Priority
  2. Filed
  3. Published
  4. Today
  5. Projected expiry

18 claims: 11 independent, 7 dependent

  1. 1
    Claims 200887371 A2 Claims 1. Additive formulation, suitable for antistatic equipment and improving the electrical conductivity of inanimate organic material, consisting essentially of (A) from 1 to 50% by weight of an olefin-sulfur dioxide copolymer, (B) 1 to 50% by weight of a compound containing one or more basic nitrogen atoms, which is at least one longer-chain linear or branched hydrocarbon radical having at least 4 carbon atoms or an equivalent structural element, which ensures the solubility of the component (B) in the inanimate organic material, having, (C) 0.1 to 30% by weight of an oil-soluble acid and (D) 1 to 80% by weight of a high-boiling organic solvent, which consists of one or more types of molecules, wherein at least 80 wt .-% of these types of molecules have a boiling point of more than 150 0 C at normal pressure, wherein the sum of all components 100 wt .-% results.
  2. 4
    4th An additive formulation according to claims 1 to 3, wherein component (A) has a number average molecular weight M n from 2,000 to 1,000,000.
  3. 5
    5th An additive formulation according to claims 1 to 4, wherein component (A) contains less than 15 mol% of olefin not reacted in the copolymerization with the sulfur dioxide.
  4. 6
    6th An additive formulation according to claims 1 to 5, wherein component (B) is an α-olefin-maleimide copolymer having at least one basic nitrogen atom.
  5. 9
    9th An additive formulation according to claims 1 to 8, wherein component (C) is an organic sulfonic acid having a hydrocarbyl radical of 6 to 40 carbon atoms.
  6. 10
    10th An additive formulation as claimed in claims 1 to 9, wherein component (D) consists of at least 80% by weight of a high boiling point aromatic hydrocarbon containing 9 to 30 carbon atoms or a mixture of such high boiling point aromatic hydrocarbons.
  7. 12
    12th A process for the preparation of the additive formulation according to claims 1 to 1 1, characterized in that first in the presence of at least a portion of the high-boiling organic solvent (D) the components (A) and (C) homogeneously mixed with each other and then the component (B) incorporated ,
  8. 13
    13th Use of the additive formulation according to claims 1 to 11 for antistatic equipment and improvement of the electrical conductivity of inanimate organic material and for preventing electrostatic charging in chemical and physical processes.
  9. 15
    15th An antistatically-treated in-vivo organic material having improved electrical conductivity selected from cosmetic preparations, drug formulations, photographic materials, paints, plastics, waxes, solvents, petroleum products and fuels containing from 0.01 to 2000 ppm by weight of the additive formulation according to claims 1 until 11.
  10. 16
    16th Process for the preparation of olefin-sulfur dioxide copolymers, containing less than 15 mol% of olefin not converted in the copolymerization with sulfur dioxide, characterized, that the sulfur dioxide is used in at least a 1, 4-fold molar excess and the polymerization is carried out in a high-boiling inert organic solvent, which consists of one or more types of molecules, wherein at least 50 wt .-% of these types of molecules have more than 8 carbon atoms.
  11. 17
    17th Process for the preparation of olefin-sulfur dioxide copolymers which contain less than 15 mol% of olefin not reacted in the copolymerization with the sulfur dioxide, characterized in that the sulfur dioxide is used in an at least 1, 1-fold molar excess and the polymerizate on at 15 to 38 ° C, especially at 20 to 30 0 C, under autogenous pressure.