Article having a continuous thermoplastic coating

• US 7,699,826 B2
• Filed: 05/01/2003
• Issued: 04/20/2010
• Est. Priority Date: 02/23/1995
• Status: Expired due to Fees

• Current Assignee: HB Fuller Company
• Original Assignee: HB Fuller Company
• Inventors: Werenicz, Harald, Remmers, Peter, Kroll, Mark S., Wittkopf, Thomas, Voss, Gerhard, Polance, Robert G. II, Katsaros, Mark G.
• Primary Examiner(s): KIDWELL, MICHELE M
• Application Number:
  US10/427,888
• Publication Number:
  US 20030208172A1
• Time in Patent Office: 2,546 Days
• Field of Search: 604/366, 604/367, 604/385.01, 604/358, 428/219, 442/286, 442/290, 442/394, 427/422, 427/424, 427/208.2, 427/208.4
• US Class Current: 604/386
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: D06N 2209/128 Non-permeable
• CPC Class Codes: D06N 3/0006 using woven fabrics
• CPC Class Codes: D06N 7/00 Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material paper-based or board-based structures for surface covering D21H27/20
• CPC Class Codes: D21H 19/20 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: D21H 23/64 the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating

Abstract

This invention relates to a non-contact coating method for producing a continuous coating and articles constructed therefrom. This invention further relates to a method for producing a textile material with a moisture-impermeable barrier layer and to a method for producing a moisture-absorbing article of hygiene which has such a barrier layer. This invention particularly relates to a textile material and hygienic disposable articles comprising a body fluid impermeable barrier layer produced from said coating method. Preferably, the thermoplastic composition used in the method for producing the barrier layer exhibits certain rheological characteristics.

Claims

1. An article comprising:

a first substrate; and

a continuous film adhered to said first substrate, said continuous film having an area weight of less than 10 g/m² and comprising a hot melt adhesive composition having a complex viscosity at a temperature less than about 160°

C. of less than about 500 poise when measured at a frequency of 1,000 radians/second and from about 100 poise to about 1000 poise when measured at a frequency of 1 radian/second.

2. The article of claim 1, wherein said first substrate comprises paper.

3. The article of claim 1, wherein said first substrate comprises a nonwoven comprising fibers.

4. The article of claim 1, wherein said first substrate comprises thermoplastic polymer.

5. The article of claim 1, wherein said first substrate comprises polyolefin.

6. The article of claim 1, wherein said first substrate comprises at least one of a hook substrate and a loop substrate.

7. The article of claim 1, wherein said hot melt adhesive composition comprises thermoplastic polymer, tackifying resin and plasticizer.

8. The article of claim 1, further comprising a second substrate adhered to said continuous film.

9. The article of claim 8, wherein said second substrate is selected from the group consisting of elastomeric strand, elastomeric web, tissue, film, nonwoven web, perforated polyethylene and superabsorbent polymer.

10. The article of claim 1, wherein said hot melt adhesive composition comprises at least one polymer selected from the group consisting of block copolymers, water dispersible copolyesters, ethylenic copolymers, polyolefins, metallocene polyolefins, atactic polyolefins and mixtures thereof.