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US 2021/0047508 A1Published application
Modified urea-formaldehyde binders for non-woven fiber glass mats
AssigneeJohns Manville
InventorsGuodong Zheng, Mingfu Zhang, Luke Weith, Jawed Asrar
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Abstract
A method of forming a binder composition includes providing a urea-formaldehyde resin and combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin. The one or more starch compounds may be combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.
Claims20
A method of forming a binder composition comprising:
- providing a urea-formaldehyde resin;
- and
- combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin;
- wherein the one or more starch compounds are combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.
1 more element
A method of forming a non-woven fiber mat comprising:
- providing a binder composition that includes:
- a urea-formaldehyde resin;
- and
- about 1 wt. % to about 10 wt. % of a starch;
- applying the binder composition to a wet laid fiber mesh;
- drying the wet laid fiber mesh;
- and
- curing the binder composition to bond fibers of the wet laid fiber mesh and thereby form the non-woven fiber mat.
5 more elements
Dependencies are inferred from the claim text.