Coating composition for porous substrate
AssigneeBrightplus Oy
InventorsMaiju Hietala, Tuire Marin, Rauna-Leena Kuvaja, Jarmo Sääski, Milja Hannu-Kuure, Jarkko Leivo
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Abstract
The present invention concerns a biobased or at least partially biobased coating composition for porous substrates, such as textiles. The composition comprises polyester and cellulose ester and is manufactured by using a melt compounding method. In addition, the invention concerns a method for coating or laminating a porous substrate with the coating composition of the present invention.
Claims21
1-19. (canceled)
A coating on a porous substrate, wherein the coating is formed from a composition comprising:
- a mixture of polyester and cellulose ester,
- a plasticizer, wherein the plasticizer comprises maleated soybean oil,
- a lubricant, and
- a thermoplastic polyurethane (TPU).
A method for coating or laminating a porous substrate, comprising the steps of
- providing a polyester, a cellulose ester, a plasticizer, a lubricant, and a thermoplastic polyurethane (TPU),
- mixing the polyester, the cellulose ester, the plasticizer, the lubricant, and the thermoplastic polyurethane (TPU) through melt extrusion in a melt compounding process to form a coating composition, and
- coating or laminating a surface of the porous substrate with the coating composition to form a coating, wherein the plasticizer comprises maleated soybean oil.
Dependencies are inferred from the claim text.