Bio-based binders for insulation and non-woven mats

A fibrous insulation product comprising:

• a plurality of randomly oriented fibers;
• and
• a binder composition applied to at least a portion of said fibers, said binder composition comprising the reaction product of:
• maltodextrin having a dextrose equivalent number from 9 to 14, said maltodextrin comprising from about 40% to about 95% by weight of total solids of said binder composition;
• and
• at least one crosslinking agent selected from monomeric polycarboxylic acid, citric acid, or their corresponding salts, said at least one crosslinking agent comprising from about 5% to about 40% by weight of total solids of said binder composition, said at least one crosslinking agent having a molecular weight from about 90 to about 10,000.

A non-woven mat comprising:

• a plurality of randomly oriented glass fibers in the form of a mat having a first major surface and a second major surface;
• and
• a binder composition at least partially coating said first major surface of said mat, said binder composition comprising the reaction product of:
• maltodextrin having a dextrose equivalent number from 9 to 14, said maltodextrin comprising from about 40% to about 95% by weight of total solids of said binder composition;
• and
• at least one crosslinking agent selected from monomeric polycarboxylic acid, citric acid, or their corresponding salts, said at least one crosslinking agent comprising from about 5% to about 40% by weight of total solids of said binder composition, said at least one crosslinking agent having a molecular weight from about 90 to about 10,000.

An insulation product formed by the process comprising:

• forming a plurality of randomly oriented glass fibers;
• applying a binder composition to said glass fibers to form a fibrous insulation blanket, said binder composition comprising:
• maltodextrin having a dextrose equivalent number from 9 to 14, said maltodextrin comprising from about 40% to about 95% by weight of total solids of said binder composition;
• and
• at least one crosslinking agent selected from monomeric polycarboxylic acid, citric acid, or their corresponding salts, said at least one crosslinking agent comprising from about 5% to about 40% by weight of total solids of said binder composition, said at least one crosslinking agent having a molecular weight from about 90 to about 10,000;
• and
• curing said binder of said fibrous insulation blanket to form an insulation product,
• wherein said cured binder in said fibrous insulation product comprises at least one polyester.

A binder composition for use in the formation of fiberglass insulation and non-woven mats comprising:

• maltodextrin having a dextrose equivalent number from 9 to 14, said maltodextrin comprising from about 40% to about 95% by weight of total solids of said binder composition;
• citric acid, said citric acid comprising from about 5% to about 40% of total solids of said binder composition;
• and
• one or more of a catalyst, a surfactant, a process aid agent, and a coupling agent.