Invention Grant
- Patent Title: Spunbond nonwoven laminate and method of making same
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Application No.: US16207097Application Date: 2018-12-01
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Publication No.: US11591728B2Publication Date: 2023-02-28
- Inventor: Sebastian Sommer , Tobias Wagner , Gerold Linke , Patrick Bohl , Morton Rise Hansen
- Applicant: Reifenhaeuser GmbH & Co. KG Maschinenfabrik
- Applicant Address: DE Troisdorf
- Assignee: Reifenhaeuser GmbH & Co. KG Maschinenfabrik
- Current Assignee: Reifenhaeuser GmbH & Co. KG Maschinenfabrik
- Current Assignee Address: DE Troisdorf
- Agent Andrew Wilford
- Priority: EP18154430 20180131
- Main IPC: D04H3/10
- IPC: D04H3/10 ; B32B5/26 ; B32B5/02 ; D04H3/007 ; D04H3/16 ; D04H1/4391 ; D04H13/00 ; D04H1/559 ; D04H1/544 ; D04H1/541

Abstract:
A spunbond nonwoven laminate has a stack of at least two and at most four spunbond nonwoven layers each formed by or consisting of crimped continuous filaments. A degree of crimping of the filaments in each of the spunbond nonwoven layers is different from a degree of crimping in each of the other spunbond nonwoven layers and each of the crimped filaments of the spunbond nonwoven layers has a crimp with at least two loops per centimeter of length. The crimped filaments of the spunbond nonwoven layers are multicomponent filaments each having at least one first plastic component and at least one second plastic component with each of the plastic components being present in the respective filament in a proportion of at least 10 wt %.
Public/Granted literature
- US20190233994A1 SPUNBOND NONWOVEN LAMINATE AND METHOD OF MAKING SAME Public/Granted day:2019-08-01
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