Back to results
US 5,167,764 AGranted
Wet laid bonded fibrous web
AssigneeHoechst Celanese Corporation
InventorsSteven F. Nielsen, Cheryl E. Johnson
Life of this patent
Estimating the term…
Abstract
A bonded fibrous wet laid web containing cellulose acetate fibers, a bicomponent fiber including a polyester or polyamide fiber member and a second member having a melting point 20.degree. C. below that of the first member and an aqueous based organic solvent which solubilizes the surface of the cellulose acetate fibers to permit bonding of said cellulose acetate fibers.
Claims23
A bonded fibrous wet laid web comprising:
- a. cellulose acetate fibers;
- b. a bicomponent fiber comprising of first member of polyester or polyamide and a second member having a melting point 20.degree. C. below that of the first member;
- and
- c. an aqueous based organic solvent which solubilizes the surface of the cellulose acetate fibers to permit bonding of said cellulose acetate fibers.
1 more element
A bonded fibrous wet laid web comprising:
- a. cellulose acetate fiber;
- b. a bicomponent fiber comprising of first member of polyester or polyamide and a second member consisting essentially of a linear low density polyethylene (LLDPE) having a density in the range of 0.88 to 0.945 g/cc;
- and
- c. an aqueous based organic solvent which solubilizes the surface of the cellulose acetate fibers to permit bonding of said cellulose acetate fibers.
1 more element
A bonded fibrous wet laid web comprising:
- a. cellulose acetate fiber;
- b. a bicomponent fiber comprising of first member of polyester of polyamide and a second member consisting essentially of a linear low density polyethylene copolymer having a density in the range of 0.88 to 0.945 g/cc, and grafted high density polyethylene, HDPE, having initially a density in the range of 0.94 to 0.965 g/cc, which has been grafted with maleic acid or maleic anhydride, thereby providing succinic anhydride group grafted along the HDPE polymer;
- and
- c. an aqueous based organic solvent which solubilizes the surface of the cellulose acetate fibers to permit bonding of said cellulose acetate fibers.
1 more element
A process for forming a blend comprising the steps of:
- a. forming a sheet consisting essentially of a blend of cellulose acetate and bicomponent fibers;
- b. saturating said sheet with an aqueous based organic solvent which solubilizes the surface of the cellulose acetate fibers;
- and
- c. drying said sheet.
1 more element
Dependencies are inferred from the claim text.