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US 2009/0156080 A1Published application
Binder composition
AssigneeRohm and Haas Company
InventorsWilliam C. Finch, Griffin M. Gappert, Michael D. Kelly, Hal C. Morris, Xun Tang
Life of this patent
Estimating the term…
Abstract
A binder composition comprising an emulsion copolymer, and a polyol crosslinker.
Claims8
A binder composition comprising:
- a. at least one polycarboxy emulsion copolymer comprising from 10% to 25% by weight of a carboxy acid monomer,
- wherein said copolymer has a measured Tg of from 40° C. to 70° C., and a total weight solids of no less than 40%;
- and
- b. at least one polyol crosslinker having a molecular weight of less than 700,
- wherein said polyol crosslinker comprises a primary hydroxy group and at least one additional hydroxy group, wherein the ratio of primary hydroxy group equivalents to carboxy group equivalents is from 0.25 to 2.0.
2 more elements
A nonwoven mat comprising nonwoven fibers bound by a binder composition comprising:
- a. at least one polycarboxy emulsion copolymer comprising from 10% to 25% by weight of a carboxy acid monomer,
- wherein said copolymer has a measured Tg of from 40° C. to 70° C., and a total weight solids of no less than 40%;
- and
- b. at least one polyol crosslinker having a molecular weight of less than 700,
- wherein said polyol crosslinker comprises a primary hydroxy group and at least one additional hydroxy group, wherein the ratio of primary hydroxy group equivalents to carboxy group equivalents is from 0.25 to 2.0.
2 more elements
Dependencies are inferred from the claim text.