Binder treated fibrous webs and products
AssigneeWeyerhaeuser Company
InventorMichael R. Hansen
Life of this patent
Estimating the term…
Abstract
Salts of hydroxy acids include functional groups capable of forming "hybrid" ionic bonds with fibers or particles and another functional group capable of forming a hydrogen bond or "hybrid" ionic bond with the fibers when the binder forms a "hybrid" ionic bond with the particles or a hydrogen, coordinate covalent, or "hybrid" ionic bond with the particles when the binder forms a "hybrid" ionic bond with the fibers. Amino acids are also described as binders capable of forming "hybrid" ionic or ionic bonds between fibers and particles. Salts of bases, such as choline chloride are also described as being useful binders for attaching particles to fibers. The salts of bases form ionic bonds with either the particles or the fibers. Such binding systems provide viable alternatives to existing binding systems.
Claims38
A fibrous mass for combining with particles to form a particle containing fibrous mass, the fibrous mass comprising:
- (a) fibers selected from the group consisting of natural and synthetic fibers;
- and
- (b) a binder comprising a salt of an organic hydroxy acid for attaching the particles to the fibers, the binder including at least one functional group that can form a hybrid ionic bond with the fibers or the particles, and another functional group that can form a bond with the fibers when the binder forms a hybrid ionic bond with the particles or a bond with the particles when the binder forms a hybrid ionic bond with the fibers.
A fibrous mass for combining with superabsorbent polymeric particles to form a superabsorbent polymeric particle containing fibrous mass, the fibrous mass comprising:
- (a) fibers selected from the group consisting of natural and synthetic fibers;
- and
- (b) a binder comprising a salt of a nonpolymeric organic base or a salt of a polymeric organic base having a molecular weight less than about 8,000 for attaching the superabsorbent polymeric particles to the fibers, the binder including at least one functional group that can form an ionic bond with the fibers or the superabsorbent polymeric particles, and another functional group that can form a hydrogen, hybrid ionic, or ionic bond with the fibers when the binder forms an ionic bond with the superabsorbent polymeric particles or a hydrogen, coordinate covalent, hybrid ionic or ionic bond with the superabsorbent polymeric particles when the binder forms an ionic bond with the fibers.
A fibrous mass for combining with superabsorbent polymeric particles to form a superabsorbent polymeric particle containing fibrous mass, the fibrous mass comprising:
- (a) fibers selected from the group consisting of natural and synthetic fibers;
- and
- (b) a binder comprising an amino acid for attaching the superabsorbent polymeric particles to the fiber, the binder including at least one functional group that can form a hybrid ionic or an ionic bond with the fibers or the superabsorbent polymeric particles, and another functional group that can form a bond with the fibers when the binder forms a hybrid ionic or ionic bond with the superabsorbent polymeric particles or a bond with the superabsorbent polymeric particles when the binder forms a hybrid ionic or ionic bond with the fibers.
A fibrous mass for combining with particles to form a particle containing fibrous mass, the fibrous mass comprising:
- (a) fibers selected from the group consisting of natural and synthetic fibers;
- and
- (b) a binder comprising a salt of a nonpolymeric organic base or a salt of a polymeric organic base having a molecular weight less than about 8,000 for attaching the particles to the fibers, the binder including at least one functional group that can form an ionic bond with the fibers or the particles, and another functional group that can form a hydrogen, hybrid ionic, or ionic bond with the fibers when the binder forms an ionic bond with the particles, or a hydrogen, coordinate covalent, hybrid ionic or ionic bond with the particles when the binder forms an ionic bond with the fibers, the binder having formed an ionic, hydrogen hybrid ionic, or coordinate covalent bond with the fibers.
A fibrous mass for combining with particles to form a particle containing fibrous mass, the fibrous mass comprising:
- (a) fibers selected from the group consisting of natural and synthetic fibers;
- and
- (b) a binder comprising an amino acid for attaching the particles to the fibers, the binder including at least one functional group that can form a hybrid ionic or ionic bond with the fibers or the particles, and another functional group that can form a bond with the fibers when the binder forms a hybrid ionic or ionic bond with the particles or a bond with the particles when the binder forms a hybrid ionic or ionic bond with the fibers, the binder having formed a bond with the fibers.
Dependencies are inferred from the claim text.