Formable and foamed aqueous compositions

A water-based composition, polymer technology, used in window decorations, textiles and papermaking, radiation-absorbing coatings, etc., can solve problems such as increasing the area of ​​​​light-colored surface shadows

Active Publication Date: 2019-04-02
EASTMAN KODAK CO
View PDF17 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, stitches created in the material during sewing can cause escaping carbon from the light-absorbing layer to spread over a larger area, increasing the area of ​​objectionable shadows on light colored surfaces

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Formable and foamed aqueous compositions
  • Formable and foamed aqueous compositions
  • Formable and foamed aqueous compositions

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0302] Preparation of Pigment Dispersions of Porous Particles:

[0303] All pigment (opaque and tinting colorant) dispersions are prepared by combining dry pigment, dispersant and liquid in a suitable grinding vessel. Each pigment was reduced in particle size by milling using ceramic media until all pigment particles were reduced to below 1 μm in diameter as determined by optical microscopy. The dispersion is further diluted in the same liquid medium for incorporation into porous particles or foamable aqueous compositions. The dispersions varied in pigment type, dispersant type, level of dispersant relative to pigment, as shown in Table I below. Dv is the volume weighted mean diameter in nanometers. In Table I, dispersions are identified by pigment (K, Y1, Y2, C or M).

[0304] Table I Dispersion

[0305]

[0306] Preparation of porous particles:

[0307] The various porous particles used to prepare the foamed opaque elements used in the various inventive examples an...

Embodiment 1

[0336] by 940.3g A 49.76% by weight aqueous dispersion of C-3018 Drapery Compound and 59.7 g of P3 porous particles prepares a foamable aqueous composition according to the present invention. The foamable aqueous composition was foamed (aerated) to provide a foamable aqueous composition according to the present invention, which was applied to the above described on the surface of the porous substrate. The coating was dried as described in Comparative Example 1. The dry foam composition (dry opaque layer) contained 6.10% by weight of P3 porous particles, 0.0610% by weight of carbon black and 0.136 g / m 2 of carbon black. The resulting foamed opaque element exhibits a 2 LBV of 5 for the dry opaque layer weight, which is significantly more opaque than the foamed opaque element of Comparative Example 1. The foamed opaque element of the invention is also brighter in appearance, giving a higher light reflectance value of 53 compared to the light reflectance value of Comparative...

Embodiment 2

[0338] Use 1,399.8g A 49.25% by weight aqueous dispersion of C-3018 Drapery Compound and 100.2 g of P7 porous particles prepares a foamable aqueous composition according to the present invention. The foamable aqueous composition was foamed (aerated) and the foamable aqueous composition according to the present invention was coated as described in Comparative Example 2 using a coating knife with a gap of 2.54 mm (0.100 inches). onto the surface of the porous substrate described above. The dry foamed composition (dry opaque layer) in the foamed opaque element according to the invention contains 6.71% by weight of P7 porous particles, 0.0557% by weight of carbon black and 0.136 g / m 2 of carbon black. The foamed opaque element of the present invention exhibits a resistance to 244 g / m 2 The dry opaque layer weight has an LBV of 5.8, and it has a light reflectance value of 52.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

Foamable aqueous compositions can be foamed and applied to porous substrates to make light-blocking dry opacifying elements. Such foamable aqueous compositions have 0.05-15 weight % of porous particles; at least 20 weight % of a binder; at least 0.0001 weight % of additives (including a surfactant); water; and at least 0.001 weight % of an opacifying colorant. Each porous particle includes a continuous polymeric phase and discrete pores; a mode particle size of 2-50 [mu]m; and a porosity of 20-70 volume %. The continuous polymeric phase Tg is > 80 DEG C and has a polymer viscosity of 80-500 centipoises at an ethyl acetate shear rate of 100 sec-1 at a concentration of 20 weight % at 25 DEG C. The dry opacifying element light blocking value is at least 4 and has a luminous reflectance > 40%as measured by the Y tristimulus value. The foamed aqueous composition has a foam density of 0.1-0.5 g/cm<3>.

Description

field of invention [0001] The present invention relates to foamable aqueous compositions comprising unique porous particles in admixture with other essential components such that when the foamable aqueous compositions are foamed to provide foamable aqueous compositions, applied to porous substrates, When the material, dried and densified, light colored foamed opaque elements are obtained. The foamed opaque element has an obscuration value of at least 4, and a light reflectance of greater than 40% as measured by Y tristimulus values. Background of the invention [0002] In general, when light hits a surface, some light may be reflected, some absorbed, some scattered, and the rest transmitted. Reflection can be diffuse, such as light reflecting off a rough surface (such as a white wall) in all directions, or specular, such as light reflecting off a mirror at a defined angle. Opaque substances transmit little light and therefore reflect, scatter or absorb all light. Both mir...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00C08J9/00C08J9/30D06N3/02D06N3/04C09D5/32C09D7/61
CPCD06N3/0068D06N2209/0853D06N3/0047C09D5/32C08J9/0061C08J9/0066C08J9/30D06N3/0063D06N3/0065D06N3/042C08J2201/026C08J2333/20C08J2401/10C09D7/69C09D7/70D06N2211/125D06N2211/122
Inventor M.奈尔M.C.布里克E.J.皮什塞克J.S.塞迪塔P.G.贝西
Owner EASTMAN KODAK CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap