Composition containing low-voc, aminoalkyl-functional silicon compounds for coating colours for the treatment of paper or film

Abstract

The present invention relates to a composition of aminoalkyl-functional silicide containing deficient volatile organic compound for processing paper or film. Specifically, the present invention relates to use of composition of deficient volatile organic compound (VOC) or compound which basically does not contain VOC composition in coating, wherein the composition eliminates the alcohol from the composition at least proportionally based on one or a plurality of silicide which is partially or wholly hydrolyzed and randomly condensated or cocondensated and aminoalkyl-functional and low polysilyanized aminoalkyl-functional, alkoxy-functional or hydroxyl-functional. The present invention also relates to a composition, wherein the contained silicide which is aminoalkyl-functional or low-poly silylanized aminoalkyl-functional, hydroxyl-functional and alkoxy-functional according to demand is reaction product of the reactions (A)-(D) in the instruction book, wherein the content of free alcohol in the composition is smaller than or equal to 1wt% based on the weight of the composition. The invention also relates to the use of composition.

Description

technical field

[0001] The present invention relates to the use of a composition comprising a VOC-depleted aminoalkyl-functional silicon compound for the treatment of coatings for paper or film for inkjet applications, the corresponding composition itself and its preparation (VOC = volatile organic compounds). Background technique

[0002] Aminosilanes are known as water-soluble adhesion promoters, for example as so-called sizings or primers in the fiberglass industry.

[0003] A number of other fields of application for aminofunctional silanes or siloxanes are: use in coating systems, use in the field of anti-corrosion, antimicrobial treatment of surfaces, use in wood treatment, use in the preparation of electrophotographic toners Use (EP 0 992 857 B1), use in the paper industry (EP 1 559 750 A2, EP 1 408 155 A1, EP 1 413 451 B1), as component of aminosilicone liquids (US 5 077 421), as ring Components in oxygen resins [Chemical Abstracts (1991)-CA 114:83579s], use in the...

Examples

Embodiment 1

[0131] Compositions with reduced VOC content

[0132] In a stirring device equipped with a metering device and a reflux condenser, 470.6 g of 1189 [N-(n-butyl)-3-aminopropyltrimethoxysilane, manufacturer: Degussa GmbH] and 80.0 g methanol. Then metered in 10 minutes by metering equipment by 28.8g H 2 The mixture of O and 28.8g methanol (molar hydrolysis ratio Si:H 2 O=1:0.8. The temperature rose from 28°C to 50°C. Stir at about 60°C for 3 hours. Then 208.89 g of methanol were distilled off at about 200 mbar. The residue / product weight was 394.87 g.

[0133] A storage-stable light yellow transparent liquid was obtained.

[0134] SiO 2 -Content: 29.6% (mass)

[0135] Methanol (after hydrolysis): 19.5% (mass)

[0136] Viscosity (20℃): 26mPas

[0137] Density (20℃): 0.996g / cm 3

Embodiment 2

[0139] Compositions with reduced VOC content

[0140] In a stirring device equipped with a metering device and a reflux condenser, 470.6 g of 1189 and 80.0 g methanol. Then add 43.20g of H in 10 minutes through metering equipment 2 A mixture of O and 43.20 g methanol (molar hydrolysis ratio Si:H2O=1:1.2). The temperature rose from 28°C to 56°C. Stir at about 60°C for 3 hours. Then 263.50 g of methanol were distilled off at about 200 mbar. The residue / product weight was 357.77 g.

[0141] A storage-stable light yellow transparent viscous liquid was obtained.

[0142] SiO 2 -Content: 32.0% (mass)

[0143] Methanol (after hydrolysis): 9.2% (mass)

[0144] Viscosity (20℃): 187mPas

[0145] Density (20℃): 1.027g / cm 3

Embodiment 3

[0147] Substantially VOC-free composition

[0148] 498.2 g of water and 55.0 g of formic acid (HCOOH concentration=85%) were charged under a nitrogen atmosphere in a stirring apparatus equipped with a metering device and a reflux condenser. Then add 235.7g through metering equipment 1189. The pH is 4.8. Stir at 60°C for 3 hours. The methanol / water mixture is then distilled off at about 130-200 mbar. The residue weight was 589.0 g.

[0149] A light yellow transparent liquid with a pH value of 5.3 was obtained which was stable in storage.

[0150] SiO 2 -Content: 9.2% (mass)

[0151] Ignition point: >100℃

[0152] Free methanol: 0.5% (mass)

[0153] Viscosity (20℃): 11mPas

[0154] Density (20℃): 1.070g / cm 3

[0155] Dry residue 105°C: 36.2% (mass)

technical field

[0001] The present invention relates to the use of a composition comprising a VOC-depleted aminoalkyl-functional silicon compound for the treatment of coatings for paper or film for inkjet applications, the corresponding composition itself and its preparation (VOC = volatile organic compounds). Background technique

[0002] Aminosilanes are known as water-soluble adhesion promoters, for example as so-called sizings or primers in the fiberglass industry.

[0003] A number of other fields of application for aminofunctional silanes or siloxanes are: use in coating systems, use in the field of anti-corrosion, antimicrobial treatment of surfaces, use in wood treatment, use in the preparation of electrophotographic toners Use (EP 0 992 857 B1), use in the paper industry (EP 1 559 750 A2, EP 1 408 155 A1, EP 1 413 451 B1), as component of aminosilicone liquids (US 5 077 421), as ring Components in oxygen resins [Chemical Abstracts (1991)-CA 114:83579s], use in the...

Examples

Embodiment 1

[0131] Compositions with reduced VOC content

[0132] In a stirring device equipped with a metering device and a reflux condenser, 470.6 g of 1189 [N-(n-butyl)-3-aminopropyltrimethoxysilane, manufacturer: Degussa GmbH] and 80.0 g methanol. Then metered in 10 minutes by metering equipment by 28.8g H 2 The mixture of O and 28.8g methanol (molar hydrolysis ratio Si:H 2 O=1:0.8. The temperature rose from 28°C to 50°C. Stir at about 60°C for 3 hours. Then 208.89 g of methanol were distilled off at about 200 mbar. The residue / product weight was 394.87 g.

[0133] A storage-stable light yellow transparent liquid was obtained.

[0134] SiO 2 -Content: 29.6% (mass)

[0135] Methanol (after hydrolysis): 19.5% (mass)

[0136] Viscosity (20℃): 26mPas

[0137] Density (20℃): 0.996g / cm 3

Embodiment 2

[0139] Compositions with reduced VOC content

[0140] In a stirring device equipped with a metering device and a reflux condenser, 470.6 g of 1189 and 80.0 g methanol. Then add 43.20g of H in 10 minutes through metering equipment 2 A mixture of O and 43.20 g methanol (molar hydrolysis ratio Si:H2O=1:1.2). The temperature rose from 28°C to 56°C. Stir at about 60°C for 3 hours. Then 263.50 g of methanol were distilled off at about 200 mbar. The residue / product weight was 357.77 g.

[0141] A storage-stable light yellow transparent viscous liquid was obtained.

[0142] SiO 2 -Content: 32.0% (mass)

[0143] Methanol (after hydrolysis): 9.2% (mass)

[0144] Viscosity (20℃): 187mPas

[0145] Density (20℃): 1.027g / cm 3

Embodiment 3

[0147] Substantially VOC-free composition

[0148] 498.2 g of water and 55.0 g of formic acid (HCOOH concentration=85%) were charged under a nitrogen atmosphere in a stirring apparatus equipped with a metering device and a reflux condenser. Then add 235.7g through metering equipment 1189. The pH is 4.8. Stir at 60°C for 3 hours. The methanol / water mixture is then distilled off at about 130-200 mbar. The residue weight was 589.0 g.

[0149] A light yellow transparent liquid with a pH value of 5.3 was obtained which was stable in storage.

[0150] SiO 2 -Content: 9.2% (mass)

[0151] Ignition point: >100℃

[0152] Free methanol: 0.5% (mass)

[0153] Viscosity (20℃): 11mPas

[0154] Density (20℃): 1.070g / cm 3

[0155] Dry residue 105°C: 36.2% (mass)

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