Aqueous formaldehyde-free composition and fiberglass insulation including the same
AssigneeH.B. Fuller Licensing & Financing, Inc.
InventorsWayne Miller, Stewart Anderson, Michael Dochniak
Life of this patent
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Abstract
An aqueous composition that includes a) aqueous hydroxy functional, carboxy functional polymer including the reaction product of at least 5% by weight α,β-ethylenically unsaturated hydroxy monomer, at least 30% by weight ethylenically unsaturated carboxylic acid monomer, from 0% by weight to less than 50% by weight α,β-ethylenically unsaturated nonhydroxy functional, noncarboxy functional monomer, and chain transfer agent, and b) condensation accelerator, and articles that include a nonwoven web including glass fibers, and cured aqueous binder composition.
Claims23
Fiberglass insulation comprising:
- a) a nonwoven web comprising glass fibers;
- and
- b) a composition comprising the reaction product of
- i) aqueous hydroxy functional carboxy functional polymer comprising the reaction product of
- at least 5% by weight α,β-ethylenically unsaturated hydroxy functional monomer,
- at least 30% by weight ethylenically unsaturated carboxylic acid monomer,
- from 0% by weight to less than 50% by weight α,β-ethylenically unsaturated nonhydroxy functional, noncarboxy functional monomer, and
- chain transfer agent, and
- ii) condensation accelerator,
- said composition being essentially free of glycerol and α,β-ethylenically unsaturated hydroxy functional monomer.
A method of making fiberglass insulation comprising:
- a) contacting glass fibers with a composition comprising
- i) aqueous hydroxy functional carboxy functional polymer comprising the reaction product of
- at least 5% by weight α,β-ethylenically unsaturated hydroxy functional monomer,
- at least 30% by weight ethylenically unsaturated carboxylic acid monomer,
- less than 50% by weight nonhydroxy functional, noncarboxy functional monomer,
- chain transfer agent, and
- ii) condensation accelerator,
- said composition being essentially free of glycerol and α,β-ethylenically unsaturated hydroxy functional monomer;
- and
- b) curing said composition.
Dependencies are inferred from the claim text.