Method for producing textile products, products obtainable therefrom and method to reclaim the products

Patent metadata

Field	Value
Publication number	US-11060006-B2
Application number	US-201916543497-A
Country	US
Kind code	B2
Filing date	Aug 16, 2019
Priority date	Jun 10, 2013
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

The present invention pertains to a method for manufacturing a laminated textile product comprising providing a first intermediate product comprising a primary backing having a front surface and a back surface, and yarns stitched into the primary backing, the yarns extending from the front surface of the backing material, feeding the intermediate product along a body having a heated surface, the back surface being pressed against the said heated surface, to at least partly melt the yarns present in the intermediate product to bond the yarns to the backing, wherein the part of the back surface that is pressed against the heated surface has a relative speed with respect to the heated surface, so as to provide a second intermediate product having a calendered back surface, providing a dimensionally stable carrier sheet or secondary backing, and connecting the second intermediate product to the carrier sheet by providing a hot melt adhesive between the calendered surface and the sheet, and pressing the sheet to the second intermediate product to form the textile product.

First claim

The invention claimed is:

1. A thermoplastic hot melt adhesive comprising a polymer P in an amount of at least 50% by weight of the hot melt adhesive composition, wherein
the polymer P is a polyester which is a reaction product of a dicarboxylic acid or an ester forming derivative thereof and a polyol having two hydroxyl groups per molecule, and wherein
the polymer P is semi-crystalline, has a melting point from 40 to 200° C., a glass transition temperature below 40° C. and a melt viscosity at 150° C. of lower than 100 Pa·s and at least 8 Pa·s.

2. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is terephthalic acid.

3. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is fumaric acid.

4. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is adipic acid.

5. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is sebacic acid.

6. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is isophthalic acid.

7. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is a combination of terephthalic acid and fumaric acid.

8. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is a combination of terephthalic acid and adipic acid.

9. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is a combination of terephthalic acid and sebacic acid.

10. The thermoplastic hot melt adhesive according to claim 1 , wherein the dicarboxylic acid is a combination of terephthalic acid and isophthalic acid.

11. The thermoplastic hot melt adhesive according to claim 1 , wherein the polyol is ethylene glycol.

12. The thermoplastic hot melt adhesive according to claim 1 , wherein the polyol is 1,4-butanediol.

13. The thermoplastic hot melt adhesive according to claim 1 , wherein the polyol is 1,6-hexanediol.

14. The thermoplastic hot melt adhesive according to claim 1 , wherein the polyol is a combination of ethylene glycol and 1,6-hexanediol.

15. The thermoplastic hot melt adhesive according to claim 1 , wherein the polyol is a combination of ethylene glycol and 1,4-butanediol.

16. The thermoplastic hot melt adhesive according to claim 1 , wherein the melt viscosity at 150° C. at least is 12 Pa·s.

17. The thermoplastic hot melt adhesive according to claim 1 , wherein the melt viscosity at 150° C. is at least is 45 Pa·s.

18. The thermoplastic hot melt adhesive according to claim 1 , wherein the hot melt adhesive comprises polymer P in an amount of at least 80% by weight of the hot melt adhesive composition.

19. The thermoplastic hot melt adhesive according to claim 1 , wherein the hot melt adhesive composition comprises no solvent.

20. The thermoplastic hot melt adhesive according to claim 1 , wherein the hot melt adhesive composition has a melting enthalpy of at least 5 J/g.

21. The thermoplastic hot melt adhesive according to claim 1 , wherein the glass transition temperature is 1° C. or less.

22. The thermoplastic hot melt adhesive according to claim 1 , wherein the polymer P has a melting point from 60 to 200° C.

23. The thermoplastic hot melt adhesive according to any of claim 1 , wherein the polymer P has a crystallization temperature Tc from 59 to 130° C. as measured by Differential Scanning calorimetry.

24. The thermoplastic hot melt adhesive according to claim 1 , wherein the polymer P is a polyester which is the reaction product of at least one dicarboxylic acid selected from the group consisting of terephthalic acid, adipic acid and isophthalic acid, with at least one alcohol selected from the group consisting of ethylene glycol, 1,6-hexanediol and 1,4-butanediol.

Assignees

• Dsm Ip Assets Bv

Inventors

• Tichelaar Michel Poul
• Koning Cornelis Eme
• Udding Jan Henderikus
• Westerhof Wilhelmina
• Reutelingsperger Chris
• Hofland Adriaan

Classifications

• Y10T428/23979

  Particular backing structure or composition · CPC title

• D06N7/0065

  characterised by the pile · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• D06N2203/065

  Polyamides · CPC title

• D06N7/0078

  the back coating or pre-coat being applied as a hot melt · CPC title