← Back to Patent Explorer
EP0366379A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Bicomponent binder fibers

Assignee: EIDP Inc
•
Filing: 1989-10-23
•
Granted: —
•
Expires: 2009-10-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Sheath/core binder fibers have a polyester fiber core and a sheath of ethylene/vinyl acetate copolymer or other organic copolymer of ethylene with polar comonomer, especially acrylate(s), such binder fibers having good processability and potential adhesion to surfaces of other polymers, especially to other fibers, such as of polyester, nylon and/or polypropylene, and blends thereof, and bonded products and processes relating thereto.

Inventors

  • 👤 John Seungun Ahn
  • 👤 Wo Kong Kwok
  • 👤 John Ormond Molter
  • 👤 Stephen Robert Tanny

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-28 13:51
CPC Classifications
C; C09; C09J; C09J4/00; D; D01; D01F; D01F8/00; D01F8/04; D01F8/14; C09J167/00; D01F8/06

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 38 words
An improved sheath/core binder fiber having a lower melting sheath of olefin polymer and a core of higher melting polyester, the improvement being characterized by the sheath consisting essentially of an organic copolymer of ethylene with polar comonomer.
Claim 2
Dependent Claim 38 words
An improved sheath/core binder fiber having a lower melting sheath of olefin polymer and a core of higher melting polyester, the improvement being characterized by the sheath consisting essentially of an organic copolymer of ethylene with polar comonomer.
Claim 3
Dependent Claim 26 words
A binder fiber according to Claim 1, wherein the sheath consists essentially of a copolymer of ethylene and vinyl acetate, if desired with a further comonomer.
Claim 4
Dependent Claim 23 words
A binder fiber according to Claim 1, wherein the sheath consists essentially of a copolymer of ethylene and one or more acrylic comonomers.
Claim 5
Dependent Claim 15 words
A blend of polyester fibers with binder fibers according to Claim 1, 2 or 3.
Claim 6
Dependent Claim 15 words
A blend of nylon fibers with binder fibers according to Claim 1, 2 or 3.
Claim 7
Dependent Claim 15 words
A blend of polypropylene fibers with binder fibers according to Claim 1, 2 or 3.
Claim 8
Dependent Claim 59 words
A process for preparing a bonded article from a blend of polyester fibers with a binder fiber according to Claim 1, 2 or 3, wherein the blend is processed to form a shaped article, and the shaped article is heat-treated to effect bonding of the binder fiber to the polyester fiber, so as to provide a bonded shaped article.
Claim 9
Dependent Claim 59 words
A process for preparing a bonded article from a blend of nylon fibers with a binder fiber according to Claim 1, 2 or 3, wherein the blend is processed to form a shaped article, and the shaped article is heat-treated to effect bonding of the binder fiber to the nylon fiber, so as to provide a bonded shaped article.
Claim 10
Dependent Claim 59 words
A process for preparing a bonded article from a blend of polypropylene fibers with a binder fiber according to Claim 1, 2 or 3 wherein the blend is processed to form a shaped article, and the shaped article is heat-treated to effect bonding of the binder fiber to the polypropylene fiber, so as to provide a bonded shaped article.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag