公开(公告)号：US20180305842A1

公开(公告)日：2018-10-25

申请号：US15737995

申请日：2016-06-26

Applicant: INVISTA NORTH AMERICA S.A R.L.

Inventor： Hong LIU ,  Achille M BIVIGOU KOUMBA ,  Norman J. D'ALLURA ,  Tianyi LIAO ,  Andreas J. BLAB ,  Ronald D. BING-WO

IPC: D01F6/70 ,  C08G61/12 ,  C08L75/08 ,  D02G3/32

CPC classification number: D01F6/70 ,  C08G18/00 ,  C08G18/1808 ,  C08G18/3228 ,  C08G18/4018 ,  C08G18/42 ,  C08G18/44 ,  C08G18/4883 ,  C08G18/7657 ,  C08G61/124 ,  C08K5/17 ,  C08L75/08 ,  C08L2203/12 ,  D02G3/32

Abstract: Fibers including a polyurethaneurea that is the reaction product of (a) a prepolymer including the reaction product of (i) a polyol including a copolymer of tetrahydrofuran and 3-methyltetrahydrofuran having a number average molecular weight of 1000 to 2000 and (ii) a diisocyanate; and (b) a chain extender, and fabrics and hygiene articles including such fibers.

公开(公告)号：US20180280205A1

公开(公告)日：2018-10-04

申请号：US15540397

申请日：2015-12-29

Applicant: INVISTA NORTH AMERICA S.A R.L.

Inventor： Ronald D. BING-WO

IPC: A61F13/15 ,  A61F13/49 ,  B29C65/08 ,  B29C65/00

Abstract: Elastic band products of high durability and quality are disclosed. Also disclosed are methods of producing durable, high quality elastic band products using modified anvil blocks, including shaped anvil blocks, anvil blocks with lateral protuberances and/or anvil blocks with teeth. The disclosed methods result in reduced elastic yarn thread slippage both during production and in the finished elastic band product.